Company lists · Data refreshed September 2026
Top 25 Security integrators worldwide
RevenueBase identified 47,411 security integrators worldwide as of September 2026 and tracks 952,890 professional contacts across them, including 176,461 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.
This list covers security integrators worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 21, 2026. Country and city lists for security integrators follow the table.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 integrators worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 79,699 contacts → | ||||
Partial evidence “G4S is a leading security and facility services company that provides proactive security services and cutting-edge smart technology to deliver tailored, integrated security…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 2 | 62,804 contacts → | ||||
Partial evidence “Allied Universal®, a leading security and facility services company, provides proactive security services and cutting-edge smart technology to deliver evolving, tailored solutions…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 3 | 38,634 contacts → | ||||
Partial evidence “Securitas knows Security.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 4 | 6,335 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 5 | 6,169 contacts → | ||||
Indirect evidence “Making the world a safer place.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 6 | 5,707 contacts → | ||||
Partial evidence “Convergint is a global systems integrator focused on delivering results for our customers through unparalleled service excellence.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 7 | 5,384 contacts → | ||||
Partial evidence “Tyco offers comprehensive security solutions to protect people, facilities, and assets as part of Johnson Controls world leading portfolio of building products, technologies…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 8 | 4,850 contacts → | ||||
Partial evidence “Axis enables a smarter and safer world by creating solutions for improving security and business performance.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 9 | 4,610 contacts → | ||||
Partial evidence “Certis is a leading advanced integrated security organisation that develops and delivers multi-disciplinary smart security and integrated services.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 10 | 4,572 contacts → | ||||
Indirect evidence “A Graber atua de forma pioneira na prestação de serviços de segurança desde 1982, introduzindo o conceito de projetos integrados na área de segurança.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 11 | 3,843 contacts → | ||||
Partial evidence “Securitas vous apporte son savoir‑faire et ses compétences dans la sécurisation de votre entreprise.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 12 | 3,620 contacts → | ||||
Partial evidence “Securitas, Soluciones de Seguridad a medida Nuestro liderazgo en conocimientos de seguridad nos ha permitido desarrollar una estrategia basada en tres pilares fundamentales…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 13 | 3,592 contacts → | ||||
Indirect evidence “U.S.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 14 | 3,586 contacts → | ||||
Partial evidence “Founded in 2001, Hikvision focuses on integrated security and scenario-based digitalization.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 15 | 3,387 contacts → | ||||
Partial evidence “Il Gruppo Sicuritalia, con oltre 18.500 dipendenti, è la più grande azienda italiana ed il secondo player privato europeo in ambito Security.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 16 | 3,348 contacts → | ||||
Indirect evidence “HAVELSAN, Türk Silahlı Kuvvetlerini Güçlendirme Vakfı'na bağlı, savunma ve bilişim sektörlerinde global çözümler sunan bir yazılım ve sistem entegratörü şirkettir.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 17 | 2,772 contacts → | ||||
Indirect evidence “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.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 18 | 2,761 contacts → | ||||
Indirect evidence “M.C.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 19 | 2,683 contacts → | ||||
Indirect evidence “Transforming how organizations protect people and places.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 20 | 2,678 contacts → | ||||
Indirect evidence “Since 1987, Automated Systems Design, Inc.(ASD®) a five-time Inc.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 21 | 2,637 contacts → | ||||
Partial evidence “As one of India’s leading system integrators, Velocis partners with organizations to turn technology into a catalyst for measurable business value.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 22 | 2,452 contacts → | ||||
Partial evidence “Imprint: SVA is one of the leading system integrators in Germany.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 23 | 2,413 contacts → | ||||
Partial evidence “ADI | Snap One is a premier distributor serving customers worldwide with comprehensive security, audiovisual, and smart living solutions.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 24 | 2,266 contacts → | ||||
Partial evidence “Andy Frain Services.America's leading provider of integrated solutions to security and events needs for over 90 years.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 25 | 2,165 contacts → | ||||
Indirect evidence “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…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: security integrators. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names security integrators.
- Partial evidence
- Its own public description names part of security integrators, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name security integrators. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 47,411 security integrators worldwide
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Security integrators worldwide at a glance
As of Sep 21, 2026Companies by employee count
Email recency is reported on each country list linked below.
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among security integrators, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- Coverage
- Every country. Country and city lists for security integrators are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “security integrators”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names security integrators), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among security integrators, and records with no verified work email.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- 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 listed company carries at least one verified work email, 176,461 across the full list. 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 September 21, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Security integrators by location
183 lists · largest firstEvery Security integrators list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Security integrators based in the United States9,256
- Security integrators based in the United Kingdom3,503
- Security integrators based in Brazil2,737
- Security integrators based in India2,521
- Security integrators based in France1,922
- Security integrators based in Italy1,479
- Security integrators based in Canada1,207
- Security integrators based in Germany1,084
- Security integrators based in Australia1,003
- Security integrators based in Mexico983
- Security integrators based in the Netherlands940
- Security integrators based in the United Arab Emirates931
- Security integrators based in Spain877
- Security integrators based in Türkiye725
- Security integrators based in South Africa707
- Security integrators based in Argentina539
- Security integrators based in Belgium467
- Security integrators based in Colombia462
- Security integrators based in Poland456
- Security integrators based in Chile405
- Security integrators based in Saudi Arabia391
- Security integrators based in Egypt363
- Security integrators based in Sweden357
- Security integrators based in Peru356
- Security integrators based in Switzerland291
- Security integrators based in Romania264
- Security integrators based in Indonesia258
- Security integrators based in Portugal255
- Security integrators based in Nigeria246
- Security integrators based in Morocco230
- Security integrators based in Malaysia222
- Security integrators based in Pakistan208
- Security integrators based in Israel205
- Security integrators based in Ireland203
- Security integrators based in the Philippines184
- Security integrators based in Russia179
- Security integrators based in Kenya173
- Security integrators based in Denmark172
- Security integrators based in New Zealand170
- Security integrators based in Greece160
- Security integrators based in Ecuador156
- Security integrators based in Hungary148
- Security integrators based in Qatar139
- Security integrators based in Ukraine129
- Security integrators based in Austria106
- Security integrators based in Algeria104
- Security integrators based in Bangladesh97
- Security integrators based in Norway91
- Security integrators based in Serbia86
- Security integrators based in Venezuela85
- Security integrators based in the Dominican Republic82
- Security integrators based in Croatia75
- Security integrators based in Finland75
- Security integrators based in Bulgaria70
- Security integrators based in Costa Rica70
- Security integrators based in Lebanon70
- Security integrators based in Jordan68
- Security integrators based in Thailand65
- Security integrators based in Panama63
- Security integrators based in Vietnam63
- Security integrators based in Slovakia62
- Security integrators based in Sri Lanka61
- Security integrators based in Uruguay61
- Security integrators based in Kuwait58
- Security integrators based in Hong Kong56
- Security integrators based in Japan55
- Security integrators based in Azerbaijan51
- Security integrators based in Oman49
- Security integrators based in Zimbabwe47
- Security integrators based in Guatemala45
- Security integrators based in Bahrain36
- Security integrators based in Cyprus35
- Security integrators based in Slovenia35
- Security integrators based in Iraq34
- Security integrators based in Luxembourg32
- Security integrators based in Lithuania30
Cities
- Security integrators based in London, United Kingdom542
- Security integrators based in Istanbul, Türkiye236
- Security integrators based in Mumbai, India213
- Security integrators based in Houston, United States185
- Security integrators based in New York, United States183
- Security integrators based in Rio De Janeiro, Brazil182
- Security integrators based in Bangalore, India172
- Security integrators based in New Delhi, India169
- Security integrators based in Cairo, Egypt166
- Security integrators based in Pune, India155
- Security integrators based in Paris, France142
- Security integrators based in Toronto, Canada138
- Security integrators based in Miami, United States129
- Security integrators based in Hyderabad, India128
- Security integrators based in Chennai, India123
- Security integrators based in Johannesburg, South Africa121
- Security integrators based in Dallas, United States117
- Security integrators based in Los Angeles, United States111
- Security integrators based in Bengaluru, India104
- Security integrators based in Ahmedabad, India103
- Security integrators based in Atlanta, United States103
- Security integrators based in Cape Town, South Africa95
- Security integrators based in Sydney, Australia93
- Security integrators based in Belo Horizonte, Brazil92
- Security integrators based in Austin, United States91
- Security integrators based in Roma, Italy91
- Security integrators based in Curitiba, Brazil89
- Security integrators based in Warszawa, Poland88
- Security integrators based in Melbourne, Australia86
- Security integrators based in Buenos Aires, Argentina80
- Security integrators based in Karachi, Pakistan80
- Security integrators based in Calgary, Canada79
- Security integrators based in Campinas, Brazil73
- Security integrators based in Chicago, United States73
- Security integrators based in Tampa, United States73
- Security integrators based in Noida, India69
- Security integrators based in Montreal, Canada67
- Security integrators based in Charlotte, United States66
- Security integrators based in Phoenix, United States66
- Security integrators based in Kolkata, India64
- Security integrators based in Manchester, United Kingdom63
- Security integrators based in Monterrey, Mexico63
- Security integrators based in Ankara, Türkiye62
- Security integrators based in Denver, United States62
- Security integrators based in San Diego, United States61
- Security integrators based in Mississauga, Canada60
- Security integrators based in Porto Alegre, Brazil60
- Security integrators based in San Francisco, United States58
- Security integrators based in Birmingham, United Kingdom53
- Security integrators based in Fortaleza, Brazil53
- Security integrators based in Las Vegas, United States52
- Security integrators based in Pretoria, South Africa48
- Security integrators based in Barueri, Brazil47
- Security integrators based in Gurgaon, India47
- Security integrators based in Ottawa, Canada47
- Security integrators based in San Antonio, United States47
- Security integrators based in Milano, Italy46
- Security integrators based in Indianapolis, United States45
- Security integrators based in Glasgow, United Kingdom44
- Security integrators based in Washington, United States44
- Security integrators based in Edmonton, Canada43
- Security integrators based in Gurugram, India43
- Security integrators based in Orlando, United States43
- Security integrators based in Columbia, United States42
- Security integrators based in Raleigh, United States41
- Security integrators based in Vancouver, Canada41
- Security integrators based in Brisbane, Australia40
- Security integrators based in Guadalajara, Mexico40
- Security integrators based in San Jose, United States40
- Security integrators based in Seattle, United States39
- Security integrators based in Irvine, United States37
- Security integrators based in Scottsdale, United States37
- Security integrators based in Boston, United States36
- Security integrators based in Bristol, United Kingdom36
- Security integrators based in Leeds, United Kingdom35
- Security integrators based in Nottingham, United Kingdom34
- Security integrators based in Perth, Australia34
- Security integrators based in Nashville, United States33
- Security integrators based in Baltimore, United States32
- Security integrators based in Zapopan, Mexico32
- Security integrators based in Brooklyn, United States31
- Security integrators based in Jacksonville, United States31
- Security integrators based in Louisville, United States31
- Security integrators based in Lyon, France31
- Security integrators based in Memphis, United States31
- Security integrators based in Navi Mumbai, India31
- Security integrators based in Portland, United States31
- Security integrators based in Rome, Italy30
- Security integrators based in Columbus, United States29
- Security integrators based in Fort Lauderdale, United States29
- Security integrators based in Springfield, United States29
- Security integrators based in Warsaw, Poland29
- Security integrators based in Alexandria, United States28
- Security integrators based in Ashburn, United States28
- Security integrators based in Belfast, United Kingdom28
- Security integrators based in Salt Lake City, United States28
- Security integrators based in Tempe, United States28
- Security integrators based in Vaughan, Canada27
- Security integrators based in Wilmington, United States27
- Security integrators based in Leicester, United Kingdom26
- Security integrators based in Plano, United States26
- Security integrators based in Sheffield, United Kingdom26
- Security integrators based in Southampton, United Kingdom26
- Security integrators based in Cincinnati, United States25
- Security integrators based in Fort Worth, United States25
- Security integrators based in Minneapolis, United States25
- Security integrators based in Pittsburgh, United States25
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names security integrators, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many security integrators are there worldwide?
RevenueBase identified 47,411 security integrators worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
G4s, headquartered in London, tops this list with the largest team on record.
Which country has the most security integrators?
The United States leads with 9,256 companies, followed by the United Kingdom (3,503) and Brazil (2,737). Every security integrators list by country and city is linked on this page.
Which city has the most security integrators?
Sao Paulo leads with 674 headquartered companies, followed by London (559) and Dubai (468).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 176,461 verified decision-maker contacts tracked across these 47,411 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 21, 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 Smart Search, 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.