Company lists · Data refreshed September 2026
Top 25 Security integration companies worldwide
RevenueBase identified 21,845 security integration companies worldwide as of September 2026 and tracks 453,278 professional contacts across them, including 63,311 with verified work emails. The United States is the largest market and London the largest hub.
This list covers security integration companies 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 29, 2026. Country and city lists for security integration companies 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 integration companies 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 29, 2026Thanks. The Data Team will review it. | |||||
| 2 | 6,335 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 3 | 6,169 contacts → | ||||
Indirect evidence “Making the world a safer place.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 4 | 5,707 contacts → | ||||
Indirect evidence “Convergint is a global systems integrator focused on delivering results for our customers through unparalleled service excellence.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 5 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 6 | 4,358 contacts → | ||||
Indirect evidence “We've merged!” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 7 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 8 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 9 | 3,592 contacts → | ||||
Indirect evidence “U.S.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 10 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 11 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 12 | 2,678 contacts → | ||||
Indirect evidence “Since 1987, Automated Systems Design, Inc.(ASD®) a five-time Inc.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 13 | 2,500 contacts → | ||||
Partial evidence “The industry leader in security, Security Industry Specialists offers unique solutions to Fortune 500 companies, international events, and celebrity clients.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 14 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 15 | 2,057 contacts → | ||||
Partial evidence “Securitas, 44 ülkede, 350 bin çalışanı ile yaklaşık 90 yıldır dünyanın daha güvenli hale gelmesi için çalışıyor.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 16 | 2,045 contacts → | ||||
Partial evidence “Everon is a leading national provider of commercial security, video, fire, sprinkler, and life safety solutions for complex, multi-site businesses and organizations.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 17 | 1,949 contacts → | ||||
Partial evidence “Paragon Systems employs over 10,500 professionals in specialized operations providing security, fire, investigations, inspections, cybersecurity, risk management, and mission…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 18 | 1,813 contacts → | ||||
Partial evidence “At Wilson Security, we are committed to building a safer future for everyone.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 19 | 1,754 contacts → | ||||
Indirect evidence “Com 35 anos de experiência no mercado, o grupo Albatroz presta serviços de alta complexidade em segurança patrimonial, segurança eletrônica, combate a incêndio e serviços de…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 20 | 1,686 contacts → | ||||
Indirect evidence “Fundada em 1990, o Grupo Belfort foi criado para oferecer soluções integradas de proteção e segurança.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 21 | 1,541 contacts → | ||||
Partial evidence “Welcome to Securiguard Middle East, Your answer for an Integrated Safety and Security Solutions in the UAE At Securiguard Middle East, we are driven by a commitment to make a…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 22 | 1,508 contacts → | ||||
Partial evidence “We are an intelligence-led security business.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 23 | 1,419 contacts → | ||||
Indirect evidence “See a different world.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 24 | 1,406 contacts → | ||||
Partial evidence “As of May 2016, Protection 1 and ADT merged together to become the leading company in the electronic security industry.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 25 | 1,368 contacts → | ||||
Partial evidence “Securitas es reconocida como una multinacional líder mundial en seguridad.” Source: RevenueBase Database · checked Sep 29, 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 integration companies. 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 integration companies.
- Partial evidence
- Its own public description names part of security integration companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name security integration companies. 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 21,845 security integration companies worldwide
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Security integration companies worldwide at a glance
As of Sep 29, 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 integration companies, 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 integration companies are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “security integration companies”. 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 integration companies), 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 integration companies, 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, 63,311 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 29, 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 integration companies by location
95 lists · largest firstEvery Security integration companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Security integration companies based in the United States4,050
- Security integration companies based in the United Kingdom2,047
- Security integration companies based in Brazil1,178
- Security integration companies based in India1,136
- Security integration companies based in France988
- Security integration companies based in Italy548
- Security integration companies based in Canada546
- Security integration companies based in Australia525
- Security integration companies based in Spain446
- Security integration companies based in Germany435
- Security integration companies based in Mexico433
- Security integration companies based in the Netherlands420
- Security integration companies based in South Africa355
- Security integration companies based in the United Arab Emirates333
- Security integration companies based in Argentina282
- Security integration companies based in Türkiye279
- Security integration companies based in Belgium260
- Security integration companies based in Colombia229
- Security integration companies based in Chile206
- Security integration companies based in Sweden181
- Security integration companies based in Peru176
- Security integration companies based in Saudi Arabia169
- Security integration companies based in Poland145
- Security integration companies based in Egypt141
- Security integration companies based in Romania133
- Security integration companies based in Ireland129
- Security integration companies based in Kenya119
- Security integration companies based in Pakistan116
- Security integration companies based in Switzerland114
- Security integration companies based in Portugal109
- Security integration companies based in Morocco101
- Security integration companies based in Malaysia85
- Security integration companies based in Indonesia84
- Security integration companies based in New Zealand81
- Security integration companies based in Greece72
- Security integration companies based in Qatar68
- Security integration companies based in Denmark67
- Security integration companies based in Ecuador67
- Security integration companies based in the Philippines67
- Security integration companies based in Israel65
- Security integration companies based in Hungary60
- Security integration companies based in Russia52
- Security integration companies based in Austria42
- Security integration companies based in Panama34
- Security integration companies based in Serbia34
- Security integration companies based in Croatia33
- Security integration companies based in Uruguay32
- Security integration companies based in Finland30
- Security integration companies based in Bulgaria28
- Security integration companies based in Norway28
Cities
- Security integration companies based in London, United Kingdom292
- Security integration companies based in Sao Paulo, Brazil265
- Security integration companies based in Dubai, United Arab Emirates153
- Security integration companies based in Bangalore, India125
- Security integration companies based in Nairobi, Kenya92
- Security integration companies based in Mumbai, India80
- Security integration companies based in New York, United States78
- Security integration companies based in New Delhi, India76
- Security integration companies based in Rio De Janeiro, Brazil73
- Security integration companies based in Pune, India72
- Security integration companies based in Riyadh, Saudi Arabia71
- Security integration companies based in Paris, France68
- Security integration companies based in Houston, United States65
- Security integration companies based in Madrid, Spain64
- Security integration companies based in Santiago, Chile60
- Security integration companies based in Miami, United States58
- Security integration companies based in Johannesburg, South Africa56
- Security integration companies based in Stockholm, Sweden55
- Security integration companies based in Toronto, Canada54
- Security integration companies based in Chennai, India53
- Security integration companies based in Dallas, United States51
- Security integration companies based in Los Angeles, United States49
- Security integration companies based in Hyderabad, India48
- Security integration companies based in Abu Dhabi, United Arab Emirates45
- Security integration companies based in Doha, Qatar45
- Security integration companies based in Manchester, United Kingdom44
- Security integration companies based in Belo Horizonte, Brazil43
- Security integration companies based in Atlanta, United States39
- Security integration companies based in Sydney, Australia39
- Security integration companies based in Cape Town, South Africa38
- Security integration companies based in Melbourne, Australia38
- Security integration companies based in Barcelona, Spain35
- Security integration companies based in Birmingham, United Kingdom35
- Security integration companies based in Noida, India34
- Security integration companies based in Calgary, Canada33
- Security integration companies based in Curitiba, Brazil33
- Security integration companies based in Berlin, Germany32
- Security integration companies based in Auckland, New Zealand31
- Security integration companies based in Mississauga, Canada31
- Security integration companies based in Montreal, Canada30
- Security integration companies based in Austin, United States29
- Security integration companies based in Washington, United States29
- Security integration companies based in Panama, Panama28
- Security integration companies based in Warsaw, Poland28
- Security integration companies based in Phoenix, United States26
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 integration companies, 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 integration companies are there worldwide?
RevenueBase identified 21,845 security integration companies 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 integration companies?
The United States leads with 4,050 companies, followed by the United Kingdom (2,047) and Brazil (1,178). Every security integration companies list by country and city is linked on this page.
Which city has the most security integration companies?
London leads with 299 headquartered companies, followed by Sao Paulo (265) and Dubai (153).
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 63,311 verified decision-maker contacts tracked across these 21,845 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 29, 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.