Company lists · Data refreshed November 2026
Top 25 Security infrastructure contractors worldwide
RevenueBase identified 28,444 company matches for security infrastructure contractors worldwide as of November 2026 and tracks 552,687 professional contacts across them, including 85,680 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.
This list covers company matches for security infrastructure contractors worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 5, 2026. Country and city lists for security infrastructure contractors follow the table.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest security infrastructure contractors worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 66,203 contacts → | ||||
Exact match “Allied Universal®, a leading security and facility services company, provides proactive security services and cutting-edge smart technology to deliver evolving, tailored solutions…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 2 | 46,086 contacts → | ||||
Exact match “50 Years of Excellence: Experience, Innovation, and Commitment to Safety.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 3 | 6,705 contacts → | ||||
Exact match “Making the world a safer place.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 4 | 6,031 contacts → | ||||
Exact match “Convergint is a global systems integrator focused on delivering results for our customers through unparalleled service excellence.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 5 | 5,755 contacts → | ||||
Exact match “Tyco offers comprehensive security solutions to protect people, facilities, and assets as part of Johnson Controls world leading portfolio of building products, technologies…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 6 | 5,040 contacts → | ||||
Exact match “Certis is a leading advanced integrated security organisation that develops and delivers multi-disciplinary smart security and integrated services.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 7 | 4,263 contacts → | ||||
Exact match “U.S.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 8 | 4,112 contacts → | ||||
Exact match “Securitas vous apporte son savoir‑faire et ses compétences dans la sécurisation de votre entreprise.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 9 | 4,040 contacts → | ||||
Exact match “Excelsior Defense is a security and investigations company based out of St.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 10 | 3,593 contacts → | ||||
Exact match “Il Gruppo Sicuritalia, con oltre 18.500 dipendenti, è la più grande azienda italiana ed il secondo player privato europeo in ambito Security.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 11 | 3,496 contacts → | ||||
Exact match “M.C.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 12 | 3,132 contacts → | ||||
Exact match “Fundado em 1992, o GRUPO GR se consolidou no mercado por sua qualidade e seriedade na implantação e operação de soluções de segurança e serviços para diversos tipos de clientes.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 13 | 2,754 contacts → | ||||
Exact match “Since 1987, Automated Systems Design, Inc.(ASD®) a five-time Inc.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 14 | 2,369 contacts → | ||||
Exact match “Com mais de 8 mil colaboradores, presente em 11 estados, vencedora do Prêmio Valor Carreira por sete vezes consecutivas, certificada pela GPTW e única empresa brasileira membro do…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 15 | 2,367 contacts → | ||||
Exact match “Pronet is the leading electronic security company that offers residential and commercial security solutions in Turkey.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 16 | 2,178 contacts → | ||||
Exact match “Everon is a leading national provider of commercial security, video, fire, sprinkler, and life safety solutions for complex, multi-site businesses and organizations.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 17 | 2,067 contacts → | ||||
Exact match “Wilson James provides safe, secure, customer-led solutions to more than 300 clients across the UK and Europe.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 18 | 1,964 contacts → | ||||
Exact match “At Wilson Security, we are committed to building a safer future for everyone.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 19 | 1,928 contacts → | ||||
Exact match “Paragon Systems employs over 10,500 professionals in specialized operations providing security, fire, investigations, inspections, cybersecurity, risk management, and mission…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 20 | 1,631 contacts → | ||||
Exact match “Over 90 years of protecting the things that matter, we’ve seen more than most.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 21 | 1,625 contacts → | ||||
Exact match “FIDELITY ADT COMMERCIAL Fidelity ADT Commercial, a division of Fidelity ADT is a leading provider of integrated retail performance and security solutions, deployed today at more…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 22 | 1,574 contacts → | ||||
Exact match “Somos una empresa de seguridad integral, incorporando la tecnología y la innovación como herramientas para asegurar la sostenibilidad de las organizaciones, con un equipo humano…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 23 | 1,548 contacts → | ||||
Exact match “O Grupo Comando G8 é referência nacional na implantação e operação de soluções integradas em segurança e serviços.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 24 | 1,467 contacts → | ||||
Exact match “As of May 2016, Protection 1 and ADT merged together to become the leading company in the electronic security industry.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 25 | 1,461 contacts → | ||||
Exact match “World Security being a Semi Govt Organization provides specialist turnkey security solutions to the local market and beyond, as well as the Dubai World Group.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “security infrastructure contractors”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 28,444 security infrastructure contractors worldwide
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Security infrastructure contractors worldwide at a glance
As of Nov 5, 2026Companies by employee count
Email recency is reported on each country list linked below.
How this list was built
The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
- Coverage
- Every country. Country and city lists for security infrastructure contractors are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “security infrastructure contractors” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
- RevenueBase SmartSearch
- Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
- Public preview
- The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
- Match quality
- RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every displayed company carries at least one verified work email. RevenueBase tracks 85,680 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on November 5, 2026. Lists refresh periodically as the graph is re-checked.
- Record context
- Company records and descriptions can change. Check the company's website for its current services and locations.
Security infrastructure contractors by location
119 lists · largest firstEvery Security infrastructure contractors list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Security infrastructure contractors based in the United States4,692
- Security infrastructure contractors based in the United Kingdom2,618
- Security infrastructure contractors based in Brazil1,993
- Security infrastructure contractors based in India1,360
- Security infrastructure contractors based in France1,285
- Security infrastructure contractors based in Italy960
- Security infrastructure contractors based in Canada685
- Security infrastructure contractors based in Germany677
- Security infrastructure contractors based in Australia648
- Security infrastructure contractors based in the Netherlands615
- Security infrastructure contractors based in Mexico584
- Security infrastructure contractors based in Spain582
- Security infrastructure contractors based in South Africa498
- Security infrastructure contractors based in Türkiye405
- Security infrastructure contractors based in the United Arab Emirates382
- Security infrastructure contractors based in Argentina359
- Security infrastructure contractors based in Belgium316
- Security infrastructure contractors based in Colombia306
- Security infrastructure contractors based in Chile300
- Security infrastructure contractors based in Sweden259
- Security infrastructure contractors based in Poland253
- Security infrastructure contractors based in Peru222
- Security infrastructure contractors based in Saudi Arabia217
- Security infrastructure contractors based in Egypt190
- Security infrastructure contractors based in Portugal173
- Security infrastructure contractors based in Switzerland166
- Security infrastructure contractors based in Nigeria164
- Security infrastructure contractors based in Pakistan160
- Security infrastructure contractors based in Romania157
- Security infrastructure contractors based in Ireland141
- Security infrastructure contractors based in Kenya134
- Security infrastructure contractors based in Morocco125
- Security infrastructure contractors based in New Zealand112
- Security infrastructure contractors based in Denmark103
- Security infrastructure contractors based in Malaysia99
- Security infrastructure contractors based in Indonesia95
- Security infrastructure contractors based in Greece93
- Security infrastructure contractors based in Ecuador92
- Security infrastructure contractors based in Czechia88
- Security infrastructure contractors based in Qatar84
- Security infrastructure contractors based in the Philippines81
- Security infrastructure contractors based in Hungary67
- Security infrastructure contractors based in Israel57
- Security infrastructure contractors based in Norway56
- Security infrastructure contractors based in Austria55
- Security infrastructure contractors based in Costa Rica50
- Security infrastructure contractors based in Uruguay48
- Security infrastructure contractors based in Serbia42
- Security infrastructure contractors based in Finland41
- Security infrastructure contractors based in Jordan41
- Security infrastructure contractors based in Croatia30
- Security infrastructure contractors based in Slovakia29
- Security infrastructure contractors based in Kuwait27
Cities
- Security infrastructure contractors based in Sao Paulo, Brazil432
- Security infrastructure contractors based in London, United Kingdom317
- Security infrastructure contractors based in Dubai, United Arab Emirates176
- Security infrastructure contractors based in Bangalore, India133
- Security infrastructure contractors based in Rio De Janeiro, Brazil128
- Security infrastructure contractors based in Istanbul, Türkiye115
- Security infrastructure contractors based in Buenos Aires, Argentina102
- Security infrastructure contractors based in Mumbai, India101
- Security infrastructure contractors based in Nairobi, Kenya101
- Security infrastructure contractors based in New York, United States92
- Security infrastructure contractors based in Riyadh, Saudi Arabia88
- Security infrastructure contractors based in Houston, United States87
- Security infrastructure contractors based in New Delhi, India86
- Security infrastructure contractors based in Madrid, Spain85
- Security infrastructure contractors based in Cairo, Egypt81
- Security infrastructure contractors based in Pune, India81
- Security infrastructure contractors based in Santiago, Chile77
- Security infrastructure contractors based in Johannesburg, South Africa70
- Security infrastructure contractors based in Paris, France69
- Security infrastructure contractors based in Rome, Italy68
- Security infrastructure contractors based in Hyderabad, India67
- Security infrastructure contractors based in Belo Horizonte, Brazil66
- Security infrastructure contractors based in Stockholm, Sweden63
- Security infrastructure contractors based in Manchester, United Kingdom62
- Security infrastructure contractors based in Toronto, Canada62
- Security infrastructure contractors based in Dallas, United States60
- Security infrastructure contractors based in Cape Town, South Africa58
- Security infrastructure contractors based in Chennai, India58
- Security infrastructure contractors based in Mexico City, Mexico58
- Security infrastructure contractors based in Abu Dhabi, United Arab Emirates57
- Security infrastructure contractors based in Los Angeles, United States57
- Security infrastructure contractors based in Curitiba, Brazil56
- Security infrastructure contractors based in Miami, United States56
- Security infrastructure contractors based in Campinas, Brazil53
- Security infrastructure contractors based in Bucharest, Romania52
- Security infrastructure contractors based in Sydney, Australia51
- Security infrastructure contractors based in Doha, Qatar49
- Security infrastructure contractors based in Melbourne, Australia46
- Security infrastructure contractors based in Calgary, Canada43
- Security infrastructure contractors based in Auckland, New Zealand42
- Security infrastructure contractors based in Atlanta, United States40
- Security infrastructure contractors based in Milan, Italy40
- Security infrastructure contractors based in Monterrey, Mexico40
- Security infrastructure contractors based in Porto Alegre, Brazil40
- Security infrastructure contractors based in Warsaw, Poland39
- Security infrastructure contractors based in Berlin, Germany38
- Security infrastructure contractors based in Birmingham, United Kingdom38
- Security infrastructure contractors based in Montreal, Canada38
- Security infrastructure contractors based in Austin, United States36
- Security infrastructure contractors based in Gurgaon, India36
- Security infrastructure contractors based in Mississauga, Canada36
- Security infrastructure contractors based in Glasgow, United Kingdom33
- Security infrastructure contractors based in Chicago, United States32
- Security infrastructure contractors based in Orlando, United States32
- Security infrastructure contractors based in Tampa, United States31
- Security infrastructure contractors based in Barcelona, Spain30
- Security infrastructure contractors based in Las Vegas, United States30
- Security infrastructure contractors based in Bristol, United Kingdom29
- Security infrastructure contractors based in Leeds, United Kingdom29
- Security infrastructure contractors based in Phoenix, United States29
- Security infrastructure contractors based in Denver, United States28
- Security infrastructure contractors based in San Jose, United States26
- Security infrastructure contractors based in Brooklyn, United States25
- Security infrastructure contractors based in Charlotte, United States25
- Security infrastructure contractors based in Nottingham, United Kingdom25
- Security infrastructure contractors based in San Diego, United States25
Frequently asked
What is RevenueBase SmartSearch?
RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “security infrastructure contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many security infrastructure contractors are there worldwide?
RevenueBase identified 28,444 company matches for security infrastructure contractors worldwide as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.
What is the largest company on this list?
Allied Universal tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most security infrastructure contractors?
The United States leads with 4,692 companies, followed by the United Kingdom (2,618) and Brazil (1,993). Every security infrastructure contractors list by country and city is linked on this page.
Which city has the most security infrastructure contractors?
Sao Paulo leads with 432 company records, followed by London (330) and Dubai (176).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 85,680 professional contacts with verified work emails tracked across these 28,444 companies; direct dials are available where recorded.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 5, 2026.
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
More company lists
Company intelligence · public preview
Top 25 security infrastructure contractors worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 28,444 matching company records for security infrastructure contractors worldwide, with 552,687 tracked contacts and 85,680 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 5, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 security infrastructure contractors worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Allied Universalaus.comHQ: Irvine, IL, United StatesReported employees: 10001+ | Irvine, IL, United States | 10001+ | Exact match | 66,203 contacts → |
“Allied Universal®, a leading security and facility services company, provides proactive security services and cutting-edge smart technology to deliver evolving, tailored solutions…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Prosegurprosegur.comHQ: Madrid, SpainReported employees: 10001+ | Madrid, Spain | 10001+ | Exact match | 46,086 contacts → |
“50 Years of Excellence: Experience, Innovation, and Commitment to Safety.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Chubb Fire & Securitychubbfs.comHQ: Staines, United KingdomReported employees: 10001+ | Staines, United Kingdom | 10001+ | Exact match | 6,705 contacts → |
“Making the world a safer place.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Convergintconvergint.comHQ: Hoffman Estates, IL, United StatesReported employees: 10001+ | Hoffman Estates, IL, United States | 10001+ | Exact match | 6,031 contacts → |
“Convergint is a global systems integrator focused on delivering results for our customers through unparalleled service excellence.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  TYCOtyco.comHQ: Cork, IrelandReported employees: 10001+ | Cork, Ireland | 10001+ | Exact match | 5,755 contacts → |
“Tyco offers comprehensive security solutions to protect people, facilities, and assets as part of Johnson Controls world leading portfolio of building products, technologies…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Certiscertisgroup.comHQ: SingaporeReported employees: 10001+ | Singapore | 10001+ | Exact match | 5,040 contacts → |
“Certis is a leading advanced integrated security organisation that develops and delivers multi-disciplinary smart security and integrated services.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  U.S. Security Associates, INCussecurityassociates.comHQ: Roswell, UT, United StatesReported employees: 10001+ | Roswell, UT, United States | 10001+ | Exact match | 4,263 contacts → |
“U.S.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Securitas Francefrance.securitas.frHQ: Issy-les-moulineaux, FranceReported employees: 10001+ | Issy-les-moulineaux, France | 10001+ | Exact match | 4,112 contacts → |
“Securitas vous apporte son savoir‑faire et ses compétences dans la sécurisation de votre entreprise.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Unemployedexcelsiordefense.com HQ: St. Petersburg, FL, United StatesReported employees: Not recorded | St. Petersburg, FL, United States | Not recorded | Exact match | 4,040 contacts → |
“Excelsior Defense is a security and investigations company based out of St.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Sicuritalia S.P.Asicuritalia.itHQ: Milan, ItalyReported employees: 10001+ | Milan, Italy | 10001+ | Exact match | 3,593 contacts → |
“Il Gruppo Sicuritalia, con oltre 18.500 dipendenti, è la più grande azienda italiana ed il secondo player privato europeo in ambito Security.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  M.C. Dean, INCmcdean.comHQ: Tysons, VA, United StatesReported employees: 5,001-10,000 | Tysons, VA, United States | 5,001-10,000 | Exact match | 3,496 contacts → |
“M.C.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Grupo GRgrupogr.com.brHQ: São Paulo, BrazilReported employees: 10001+ | São Paulo, Brazil | 10001+ | Exact match | 3,132 contacts → |
“Fundado em 1992, o GRUPO GR se consolidou no mercado por sua qualidade e seriedade na implantação e operação de soluções de segurança e serviços para diversos tipos de clientes.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Automated Systems Design, INCasd-usa.comHQ: Alpharetta, GA, United StatesReported employees: Not recorded | Alpharetta, GA, United States | Not recorded | Exact match | 2,754 contacts → |
“Since 1987, Automated Systems Design, Inc.(ASD®) a five-time Inc.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Security Segurança E Serviçossousecurity.com.brHQ: São Paulo, BrazilReported employees: 5,001-10,000 | São Paulo, Brazil | 5,001-10,000 | Exact match | 2,369 contacts → |
“Com mais de 8 mil colaboradores, presente em 11 estados, vencedora do Prêmio Valor Carreira por sete vezes consecutivas, certificada pela GPTW e única empresa brasileira membro do…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Pronet Security Servicespronet.com.trHQ: Istanbul, TürkiyeReported employees: 1,001-5,000 | Istanbul, Türkiye | 1,001-5,000 | Exact match | 2,367 contacts → |
“Pronet is the leading electronic security company that offers residential and commercial security solutions in Turkey.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Everoneveronsolutions.comHQ: Irving, TX, United StatesReported employees: 1,001-5,000 | Irving, TX, United States | 1,001-5,000 | Exact match | 2,178 contacts → |
“Everon is a leading national provider of commercial security, video, fire, sprinkler, and life safety solutions for complex, multi-site businesses and organizations.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Wilson Jameswilsonjames.co.ukHQ: Westcliff-on-sea, United KingdomReported employees: 5,001-10,000 | Westcliff-on-sea, United Kingdom | 5,001-10,000 | Exact match | 2,067 contacts → |
“Wilson James provides safe, secure, customer-led solutions to more than 300 clients across the UK and Europe.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Wilson Securitywilsonsecurity.com.auHQ: Essendon Fields, AustraliaReported employees: 5,001-10,000 | Essendon Fields, Australia | 5,001-10,000 | Exact match | 1,964 contacts → |
“At Wilson Security, we are committed to building a safer future for everyone.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Paragon Systems INCparasys.comHQ: Herndon, VA, United StatesReported employees: 10001+ | Herndon, VA, United States | 10001+ | Exact match | 1,928 contacts → |
“Paragon Systems employs over 10,500 professionals in specialized operations providing security, fire, investigations, inspections, cybersecurity, risk management, and mission…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Securitas Canadasecuritas.caHQ: North York, ON, CanadaReported employees: 5,001-10,000 | North York, ON, Canada | 5,001-10,000 | Exact match | 1,631 contacts → |
“Over 90 years of protecting the things that matter, we’ve seen more than most.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Fidelity ADTadt.co.zaHQ: Johannesburg, South AfricaReported employees: 10001+ | Johannesburg, South Africa | 10001+ | Exact match | 1,625 contacts → |
“FIDELITY ADT COMMERCIAL Fidelity ADT Commercial, a division of Fidelity ADT is a leading provider of integrated retail performance and security solutions, deployed today at more…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Grupo Atlas DE Seguridad Integralatlas.com.coHQ: Cali, ColombiaReported employees: 10001+ | Cali, Colombia | 10001+ | Exact match | 1,574 contacts → |
“Somos una empresa de seguridad integral, incorporando la tecnología y la innovación como herramientas para asegurar la sostenibilidad de las organizaciones, con un equipo humano…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Comando G8comandog8.com.brHQ: São Paulo, BrazilReported employees: 5,001-10,000 | São Paulo, Brazil | 5,001-10,000 | Exact match | 1,548 contacts → |
“O Grupo Comando G8 é referência nacional na implantação e operação de soluções integradas em segurança e serviços.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Protection 1 Security Solutionsprotection1.comHQ: Romeoville, IL, United StatesReported employees: 1,001-5,000 | Romeoville, IL, United States | 1,001-5,000 | Exact match | 1,467 contacts → |
“As of May 2016, Protection 1 and ADT merged together to become the leading company in the electronic security industry.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  World Securityworldsecurity.aeHQ: Dubai, United Arab EmiratesReported employees: 1,001-5,000 | Dubai, United Arab Emirates | 1,001-5,000 | Exact match | 1,461 contacts → |
“World Security being a Semi Govt Organization provides specialist turnkey security solutions to the local market and beyond, as well as the Dubai World Group.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 28,444 company matches
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Security infrastructure contractors: dataset insights
November 5, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
27,938 records in the displayed employee bands.
506 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 28,444 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 5, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Security infrastructure contractors by location
119 lists · largest firstEvery Security infrastructure contractors list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Security infrastructure contractors based in the United States4,692
- Security infrastructure contractors based in the United Kingdom2,618
- Security infrastructure contractors based in Brazil1,993
- Security infrastructure contractors based in India1,360
- Security infrastructure contractors based in France1,285
- Security infrastructure contractors based in Italy960
- Security infrastructure contractors based in Canada685
- Security infrastructure contractors based in Germany677
- Security infrastructure contractors based in Australia648
- Security infrastructure contractors based in the Netherlands615
- Security infrastructure contractors based in Mexico584
- Security infrastructure contractors based in Spain582
- Security infrastructure contractors based in South Africa498
- Security infrastructure contractors based in Türkiye405
- Security infrastructure contractors based in the United Arab Emirates382
- Security infrastructure contractors based in Argentina359
- Security infrastructure contractors based in Belgium316
- Security infrastructure contractors based in Colombia306
- Security infrastructure contractors based in Chile300
- Security infrastructure contractors based in Sweden259
- Security infrastructure contractors based in Poland253
- Security infrastructure contractors based in Peru222
- Security infrastructure contractors based in Saudi Arabia217
- Security infrastructure contractors based in Egypt190
- Security infrastructure contractors based in Portugal173
- Security infrastructure contractors based in Switzerland166
- Security infrastructure contractors based in Nigeria164
- Security infrastructure contractors based in Pakistan160
- Security infrastructure contractors based in Romania157
- Security infrastructure contractors based in Ireland141
- Security infrastructure contractors based in Kenya134
- Security infrastructure contractors based in Morocco125
- Security infrastructure contractors based in New Zealand112
- Security infrastructure contractors based in Denmark103
- Security infrastructure contractors based in Malaysia99
- Security infrastructure contractors based in Indonesia95
- Security infrastructure contractors based in Greece93
- Security infrastructure contractors based in Ecuador92
- Security infrastructure contractors based in Czechia88
- Security infrastructure contractors based in Qatar84
- Security infrastructure contractors based in the Philippines81
- Security infrastructure contractors based in Hungary67
- Security infrastructure contractors based in Israel57
- Security infrastructure contractors based in Norway56
- Security infrastructure contractors based in Austria55
- Security infrastructure contractors based in Costa Rica50
- Security infrastructure contractors based in Uruguay48
- Security infrastructure contractors based in Serbia42
- Security infrastructure contractors based in Finland41
- Security infrastructure contractors based in Jordan41
- Security infrastructure contractors based in Croatia30
- Security infrastructure contractors based in Slovakia29
- Security infrastructure contractors based in Kuwait27
Cities
- Security infrastructure contractors based in Sao Paulo, Brazil432
- Security infrastructure contractors based in London, United Kingdom317
- Security infrastructure contractors based in Dubai, United Arab Emirates176
- Security infrastructure contractors based in Bangalore, India133
- Security infrastructure contractors based in Rio De Janeiro, Brazil128
- Security infrastructure contractors based in Istanbul, Türkiye115
- Security infrastructure contractors based in Buenos Aires, Argentina102
- Security infrastructure contractors based in Mumbai, India101
- Security infrastructure contractors based in Nairobi, Kenya101
- Security infrastructure contractors based in New York, United States92
- Security infrastructure contractors based in Riyadh, Saudi Arabia88
- Security infrastructure contractors based in Houston, United States87
- Security infrastructure contractors based in New Delhi, India86
- Security infrastructure contractors based in Madrid, Spain85
- Security infrastructure contractors based in Cairo, Egypt81
- Security infrastructure contractors based in Pune, India81
- Security infrastructure contractors based in Santiago, Chile77
- Security infrastructure contractors based in Johannesburg, South Africa70
- Security infrastructure contractors based in Paris, France69
- Security infrastructure contractors based in Rome, Italy68
- Security infrastructure contractors based in Hyderabad, India67
- Security infrastructure contractors based in Belo Horizonte, Brazil66
- Security infrastructure contractors based in Stockholm, Sweden63
- Security infrastructure contractors based in Manchester, United Kingdom62
- Security infrastructure contractors based in Toronto, Canada62
- Security infrastructure contractors based in Dallas, United States60
- Security infrastructure contractors based in Cape Town, South Africa58
- Security infrastructure contractors based in Chennai, India58
- Security infrastructure contractors based in Mexico City, Mexico58
- Security infrastructure contractors based in Abu Dhabi, United Arab Emirates57
- Security infrastructure contractors based in Los Angeles, United States57
- Security infrastructure contractors based in Curitiba, Brazil56
- Security infrastructure contractors based in Miami, United States56
- Security infrastructure contractors based in Campinas, Brazil53
- Security infrastructure contractors based in Bucharest, Romania52
- Security infrastructure contractors based in Sydney, Australia51
- Security infrastructure contractors based in Doha, Qatar49
- Security infrastructure contractors based in Melbourne, Australia46
- Security infrastructure contractors based in Calgary, Canada43
- Security infrastructure contractors based in Auckland, New Zealand42
- Security infrastructure contractors based in Atlanta, United States40
- Security infrastructure contractors based in Milan, Italy40
- Security infrastructure contractors based in Monterrey, Mexico40
- Security infrastructure contractors based in Porto Alegre, Brazil40
- Security infrastructure contractors based in Warsaw, Poland39
- Security infrastructure contractors based in Berlin, Germany38
- Security infrastructure contractors based in Birmingham, United Kingdom38
- Security infrastructure contractors based in Montreal, Canada38
- Security infrastructure contractors based in Austin, United States36
- Security infrastructure contractors based in Gurgaon, India36
- Security infrastructure contractors based in Mississauga, Canada36
- Security infrastructure contractors based in Glasgow, United Kingdom33
- Security infrastructure contractors based in Chicago, United States32
- Security infrastructure contractors based in Orlando, United States32
- Security infrastructure contractors based in Tampa, United States31
- Security infrastructure contractors based in Barcelona, Spain30
- Security infrastructure contractors based in Las Vegas, United States30
- Security infrastructure contractors based in Bristol, United Kingdom29
- Security infrastructure contractors based in Leeds, United Kingdom29
- Security infrastructure contractors based in Phoenix, United States29
- Security infrastructure contractors based in Denver, United States28
- Security infrastructure contractors based in San Jose, United States26
- Security infrastructure contractors based in Brooklyn, United States25
- Security infrastructure contractors based in Charlotte, United States25
- Security infrastructure contractors based in Nottingham, United Kingdom25
- Security infrastructure contractors based in San Diego, United States25
Questions about this company list
What does Exact match mean for security infrastructure contractors?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many security infrastructure contractors did RevenueBase find worldwide?
The saved snapshot records 28,444 matching company records, 552,687 tracked contacts and 85,680 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 5, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 security infrastructure contractors worldwide. Snapshot: November 5, 2026. https://revenuebase.ai/companies/browse/security-infrastructure-contractors.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
Company intelligence · public preview
Top 25 security infrastructure contractors worldwide
RevenueBase records 28,444 matching company records for security infrastructure contractors worldwide, with 552,687 tracked contacts and 85,680 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 5, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 security infrastructure contractors worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Allied Universalaus.com HQ: Irvine, IL, United StatesReported employees: 10001+ | Irvine, IL, United States | 10001+ | Exact match | 66,203 contacts → |
“Allied Universal®, a leading security and facility services company, provides proactive security services and cutting-edge smart technology to deliver evolving, tailored solutions…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Prosegurprosegur.com HQ: Madrid, SpainReported employees: 10001+ | Madrid, Spain | 10001+ | Exact match | 46,086 contacts → |
“50 Years of Excellence: Experience, Innovation, and Commitment to Safety.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Chubb Fire & Securitychubbfs.com HQ: Staines, United KingdomReported employees: 10001+ | Staines, United Kingdom | 10001+ | Exact match | 6,705 contacts → |
“Making the world a safer place.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Convergintconvergint.com HQ: Hoffman Estates, IL, United StatesReported employees: 10001+ | Hoffman Estates, IL, United States | 10001+ | Exact match | 6,031 contacts → |
“Convergint is a global systems integrator focused on delivering results for our customers through unparalleled service excellence.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | TYCOtyco.com HQ: Cork, IrelandReported employees: 10001+ | Cork, Ireland | 10001+ | Exact match | 5,755 contacts → |
“Tyco offers comprehensive security solutions to protect people, facilities, and assets as part of Johnson Controls world leading portfolio of building products, technologies…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Certiscertisgroup.com HQ: SingaporeReported employees: 10001+ | Singapore | 10001+ | Exact match | 5,040 contacts → |
“Certis is a leading advanced integrated security organisation that develops and delivers multi-disciplinary smart security and integrated services.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | U.S. Security Associates, INCussecurityassociates.com HQ: Roswell, UT, United StatesReported employees: 10001+ | Roswell, UT, United States | 10001+ | Exact match | 4,263 contacts → |
“U.S.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Securitas Francefrance.securitas.fr HQ: Issy-les-moulineaux, FranceReported employees: 10001+ | Issy-les-moulineaux, France | 10001+ | Exact match | 4,112 contacts → |
“Securitas vous apporte son savoir‑faire et ses compétences dans la sécurisation de votre entreprise.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Unemployedexcelsiordefense.com HQ: St. Petersburg, FL, United StatesReported employees: Not recorded | St. Petersburg, FL, United States | Not recorded | Exact match | 4,040 contacts → |
“Excelsior Defense is a security and investigations company based out of St.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Sicuritalia S.P.Asicuritalia.it HQ: Milan, ItalyReported employees: 10001+ | Milan, Italy | 10001+ | Exact match | 3,593 contacts → |
“Il Gruppo Sicuritalia, con oltre 18.500 dipendenti, è la più grande azienda italiana ed il secondo player privato europeo in ambito Security.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | M.C. Dean, INCmcdean.com HQ: Tysons, VA, United StatesReported employees: 5,001-10,000 | Tysons, VA, United States | 5,001-10,000 | Exact match | 3,496 contacts → |
“M.C.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Grupo GRgrupogr.com.br HQ: São Paulo, BrazilReported employees: 10001+ | São Paulo, Brazil | 10001+ | Exact match | 3,132 contacts → |
“Fundado em 1992, o GRUPO GR se consolidou no mercado por sua qualidade e seriedade na implantação e operação de soluções de segurança e serviços para diversos tipos de clientes.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Automated Systems Design, INCasd-usa.com HQ: Alpharetta, GA, United StatesReported employees: Not recorded | Alpharetta, GA, United States | Not recorded | Exact match | 2,754 contacts → |
“Since 1987, Automated Systems Design, Inc.(ASD®) a five-time Inc.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Security Segurança E Serviçossousecurity.com.br HQ: São Paulo, BrazilReported employees: 5,001-10,000 | São Paulo, Brazil | 5,001-10,000 | Exact match | 2,369 contacts → |
“Com mais de 8 mil colaboradores, presente em 11 estados, vencedora do Prêmio Valor Carreira por sete vezes consecutivas, certificada pela GPTW e única empresa brasileira membro do…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Pronet Security Servicespronet.com.tr HQ: Istanbul, TürkiyeReported employees: 1,001-5,000 | Istanbul, Türkiye | 1,001-5,000 | Exact match | 2,367 contacts → |
“Pronet is the leading electronic security company that offers residential and commercial security solutions in Turkey.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Everoneveronsolutions.com HQ: Irving, TX, United StatesReported employees: 1,001-5,000 | Irving, TX, United States | 1,001-5,000 | Exact match | 2,178 contacts → |
“Everon is a leading national provider of commercial security, video, fire, sprinkler, and life safety solutions for complex, multi-site businesses and organizations.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Wilson Jameswilsonjames.co.uk HQ: Westcliff-on-sea, United KingdomReported employees: 5,001-10,000 | Westcliff-on-sea, United Kingdom | 5,001-10,000 | Exact match | 2,067 contacts → |
“Wilson James provides safe, secure, customer-led solutions to more than 300 clients across the UK and Europe.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Wilson Securitywilsonsecurity.com.au HQ: Essendon Fields, AustraliaReported employees: 5,001-10,000 | Essendon Fields, Australia | 5,001-10,000 | Exact match | 1,964 contacts → |
“At Wilson Security, we are committed to building a safer future for everyone.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Paragon Systems INCparasys.com HQ: Herndon, VA, United StatesReported employees: 10001+ | Herndon, VA, United States | 10001+ | Exact match | 1,928 contacts → |
“Paragon Systems employs over 10,500 professionals in specialized operations providing security, fire, investigations, inspections, cybersecurity, risk management, and mission…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Securitas Canadasecuritas.ca HQ: North York, ON, CanadaReported employees: 5,001-10,000 | North York, ON, Canada | 5,001-10,000 | Exact match | 1,631 contacts → |
“Over 90 years of protecting the things that matter, we’ve seen more than most.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Fidelity ADTadt.co.za HQ: Johannesburg, South AfricaReported employees: 10001+ | Johannesburg, South Africa | 10001+ | Exact match | 1,625 contacts → |
“FIDELITY ADT COMMERCIAL Fidelity ADT Commercial, a division of Fidelity ADT is a leading provider of integrated retail performance and security solutions, deployed today at more…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Grupo Atlas DE Seguridad Integralatlas.com.co HQ: Cali, ColombiaReported employees: 10001+ | Cali, Colombia | 10001+ | Exact match | 1,574 contacts → |
“Somos una empresa de seguridad integral, incorporando la tecnología y la innovación como herramientas para asegurar la sostenibilidad de las organizaciones, con un equipo humano…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Comando G8comandog8.com.br HQ: São Paulo, BrazilReported employees: 5,001-10,000 | São Paulo, Brazil | 5,001-10,000 | Exact match | 1,548 contacts → |
“O Grupo Comando G8 é referência nacional na implantação e operação de soluções integradas em segurança e serviços.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Protection 1 Security Solutionsprotection1.com HQ: Romeoville, IL, United StatesReported employees: 1,001-5,000 | Romeoville, IL, United States | 1,001-5,000 | Exact match | 1,467 contacts → |
“As of May 2016, Protection 1 and ADT merged together to become the leading company in the electronic security industry.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | World Securityworldsecurity.ae HQ: Dubai, United Arab EmiratesReported employees: 1,001-5,000 | Dubai, United Arab Emirates | 1,001-5,000 | Exact match | 1,461 contacts → |
“World Security being a Semi Govt Organization provides specialist turnkey security solutions to the local market and beyond, as well as the Dubai World Group.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 28,444 company matches
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Security infrastructure contractors: dataset insights
November 5, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
27,938 records in the displayed employee bands.
506 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 28,444 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 5, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Security infrastructure contractors by location
119 lists · largest firstEvery Security infrastructure contractors list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Security infrastructure contractors based in the United States4,692
- Security infrastructure contractors based in the United Kingdom2,618
- Security infrastructure contractors based in Brazil1,993
- Security infrastructure contractors based in India1,360
- Security infrastructure contractors based in France1,285
- Security infrastructure contractors based in Italy960
- Security infrastructure contractors based in Canada685
- Security infrastructure contractors based in Germany677
- Security infrastructure contractors based in Australia648
- Security infrastructure contractors based in the Netherlands615
- Security infrastructure contractors based in Mexico584
- Security infrastructure contractors based in Spain582
- Security infrastructure contractors based in South Africa498
- Security infrastructure contractors based in Türkiye405
- Security infrastructure contractors based in the United Arab Emirates382
- Security infrastructure contractors based in Argentina359
- Security infrastructure contractors based in Belgium316
- Security infrastructure contractors based in Colombia306
- Security infrastructure contractors based in Chile300
- Security infrastructure contractors based in Sweden259
- Security infrastructure contractors based in Poland253
- Security infrastructure contractors based in Peru222
- Security infrastructure contractors based in Saudi Arabia217
- Security infrastructure contractors based in Egypt190
- Security infrastructure contractors based in Portugal173
- Security infrastructure contractors based in Switzerland166
- Security infrastructure contractors based in Nigeria164
- Security infrastructure contractors based in Pakistan160
- Security infrastructure contractors based in Romania157
- Security infrastructure contractors based in Ireland141
- Security infrastructure contractors based in Kenya134
- Security infrastructure contractors based in Morocco125
- Security infrastructure contractors based in New Zealand112
- Security infrastructure contractors based in Denmark103
- Security infrastructure contractors based in Malaysia99
- Security infrastructure contractors based in Indonesia95
- Security infrastructure contractors based in Greece93
- Security infrastructure contractors based in Ecuador92
- Security infrastructure contractors based in Czechia88
- Security infrastructure contractors based in Qatar84
- Security infrastructure contractors based in the Philippines81
- Security infrastructure contractors based in Hungary67
- Security infrastructure contractors based in Israel57
- Security infrastructure contractors based in Norway56
- Security infrastructure contractors based in Austria55
- Security infrastructure contractors based in Costa Rica50
- Security infrastructure contractors based in Uruguay48
- Security infrastructure contractors based in Serbia42
- Security infrastructure contractors based in Finland41
- Security infrastructure contractors based in Jordan41
- Security infrastructure contractors based in Croatia30
- Security infrastructure contractors based in Slovakia29
- Security infrastructure contractors based in Kuwait27
Cities
- Security infrastructure contractors based in Sao Paulo, Brazil432
- Security infrastructure contractors based in London, United Kingdom317
- Security infrastructure contractors based in Dubai, United Arab Emirates176
- Security infrastructure contractors based in Bangalore, India133
- Security infrastructure contractors based in Rio De Janeiro, Brazil128
- Security infrastructure contractors based in Istanbul, Türkiye115
- Security infrastructure contractors based in Buenos Aires, Argentina102
- Security infrastructure contractors based in Mumbai, India101
- Security infrastructure contractors based in Nairobi, Kenya101
- Security infrastructure contractors based in New York, United States92
- Security infrastructure contractors based in Riyadh, Saudi Arabia88
- Security infrastructure contractors based in Houston, United States87
- Security infrastructure contractors based in New Delhi, India86
- Security infrastructure contractors based in Madrid, Spain85
- Security infrastructure contractors based in Cairo, Egypt81
- Security infrastructure contractors based in Pune, India81
- Security infrastructure contractors based in Santiago, Chile77
- Security infrastructure contractors based in Johannesburg, South Africa70
- Security infrastructure contractors based in Paris, France69
- Security infrastructure contractors based in Rome, Italy68
- Security infrastructure contractors based in Hyderabad, India67
- Security infrastructure contractors based in Belo Horizonte, Brazil66
- Security infrastructure contractors based in Stockholm, Sweden63
- Security infrastructure contractors based in Manchester, United Kingdom62
- Security infrastructure contractors based in Toronto, Canada62
- Security infrastructure contractors based in Dallas, United States60
- Security infrastructure contractors based in Cape Town, South Africa58
- Security infrastructure contractors based in Chennai, India58
- Security infrastructure contractors based in Mexico City, Mexico58
- Security infrastructure contractors based in Abu Dhabi, United Arab Emirates57
- Security infrastructure contractors based in Los Angeles, United States57
- Security infrastructure contractors based in Curitiba, Brazil56
- Security infrastructure contractors based in Miami, United States56
- Security infrastructure contractors based in Campinas, Brazil53
- Security infrastructure contractors based in Bucharest, Romania52
- Security infrastructure contractors based in Sydney, Australia51
- Security infrastructure contractors based in Doha, Qatar49
- Security infrastructure contractors based in Melbourne, Australia46
- Security infrastructure contractors based in Calgary, Canada43
- Security infrastructure contractors based in Auckland, New Zealand42
- Security infrastructure contractors based in Atlanta, United States40
- Security infrastructure contractors based in Milan, Italy40
- Security infrastructure contractors based in Monterrey, Mexico40
- Security infrastructure contractors based in Porto Alegre, Brazil40
- Security infrastructure contractors based in Warsaw, Poland39
- Security infrastructure contractors based in Berlin, Germany38
- Security infrastructure contractors based in Birmingham, United Kingdom38
- Security infrastructure contractors based in Montreal, Canada38
- Security infrastructure contractors based in Austin, United States36
- Security infrastructure contractors based in Gurgaon, India36
- Security infrastructure contractors based in Mississauga, Canada36
- Security infrastructure contractors based in Glasgow, United Kingdom33
- Security infrastructure contractors based in Chicago, United States32
- Security infrastructure contractors based in Orlando, United States32
- Security infrastructure contractors based in Tampa, United States31
- Security infrastructure contractors based in Barcelona, Spain30
- Security infrastructure contractors based in Las Vegas, United States30
- Security infrastructure contractors based in Bristol, United Kingdom29
- Security infrastructure contractors based in Leeds, United Kingdom29
- Security infrastructure contractors based in Phoenix, United States29
- Security infrastructure contractors based in Denver, United States28
- Security infrastructure contractors based in San Jose, United States26
- Security infrastructure contractors based in Brooklyn, United States25
- Security infrastructure contractors based in Charlotte, United States25
- Security infrastructure contractors based in Nottingham, United Kingdom25
- Security infrastructure contractors based in San Diego, United States25
Questions about this company list
What does Exact match mean for security infrastructure contractors?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many security infrastructure contractors did RevenueBase find worldwide?
The saved snapshot records 28,444 matching company records, 552,687 tracked contacts and 85,680 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 5, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 security infrastructure contractors worldwide. Snapshot: November 5, 2026. https://revenuebase.ai/companies/browse/security-infrastructure-contractors.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗