Company lists · Data refreshed November 2026

Top 25 Government security system suppliers worldwide

Name: Government security system suppliers worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 5, 2026 15,988 companies tracked

RevenueBase identified 15,988 company matches for government security system suppliers worldwide as of November 2026 and tracks 257,456 professional contacts across them, including 45,310 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers company matches for government security system suppliers 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 government security system suppliers 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 5, 2026 How this list was built

15,988Companies

257,456Contacts tracked

45,310Verified emails

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The 25 largest government security system suppliers worldwide

Ranked by team size

Top 25 of 15,988 company matches for government security system suppliers worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 5, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Peraton	Exact match	Reston, MD, United StatesHQ recorded Nov 5, 2026	10001+	11,210 contacts →
	Exact match “At Peraton, we're at the forefront of delivering the next big thing every day.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2	Convergint	Exact match	Hoffman Estates, IL, United StatesHQ recorded Nov 5, 2026	10001+	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
3	Certis	Exact match	SingaporeHQ recorded Nov 5, 2026	10001+	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
4	Securitas France	Exact match	Issy-les-moulineaux, FranceHQ recorded Nov 5, 2026	10001+	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
5	Automated Systems Design, INC	Exact match	Alpharetta, GA, United StatesHQ recorded Nov 5, 2026	n/a	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
6	Paragon Systems INC	Exact match	Herndon, VA, United StatesHQ recorded Nov 5, 2026	10001+	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
7	Fidelity ADT	Exact match	Johannesburg, South AfricaHQ recorded Nov 5, 2026	10001+	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
8	Comando G8	Exact match	São Paulo, BrazilHQ recorded Nov 5, 2026	5,001-10,000	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
9	Ninguno	Exact match	Madrid, SpainHQ recorded Nov 5, 2026	n/a	1,485 contacts →
	Exact match “Siadde Soluciones es una compañía tecnológica, innovadora y competitiva en un contexto global.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10	Protection 1 Security Solutions	Exact match	Romeoville, IL, United StatesHQ recorded Nov 5, 2026	1,001-5,000	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
11	Andrews International	Exact match	Burbank, CA, United StatesHQ recorded Nov 5, 2026	10001+	1,216 contacts →
	Exact match “Twenty-five years ago Andrews International (AI) began forming a network of the world’s foremost security authorities and connecting with strategic partners for operations…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12	Titan Security Group	Exact match	Chicago, IL, United StatesHQ recorded Nov 5, 2026	1,001-5,000	1,209 contacts →
	Exact match “At Titan Security Group, we understand that each client is unique, with specific security needs shaped by the type of property and its location.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13	Seguritech	Exact match	Mexico City, MexicoHQ recorded Nov 5, 2026	1,001-5,000	1,159 contacts →
	Exact match “A lo largo de 30 años, hemos incursionado y evolucionado en distintas áreas atendiendo en el continente americano a clientes privados, corporativos y sector gobierno.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14	Solid Security Sp. Z O.O	Exact match	Warsaw, PolandHQ recorded Nov 5, 2026	10001+	1,154 contacts →
	Exact match “Solid Security to doświadczenie, wiedza oraz profesjonalizm działań na rynku ochrony osób i mienia.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15	Onet Sécurité	Exact match	Marseille, FranceHQ recorded Nov 5, 2026	10001+	1,142 contacts →
	Exact match “La proposition de valeur d'Onet dans la sécurité se fonde sur - son expertise sécurité et sa capacité à analyser les besoins et risques propres à ses clients- sa parfaite maîtrise…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16	Leidos Australia	Exact match	Scoresby, AustraliaHQ recorded Nov 5, 2026	1,001-5,000	1,053 contacts →
	Exact match “Leidos is a Fortune 500® innovation company working to solve the world’s toughest challenges in government, intelligence, defence, aviation, border protection and health markets.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17	Securitas Perú	Exact match	Magdalena Del Mar, PeruHQ recorded Nov 5, 2026	1,001-5,000	1,034 contacts →
	Exact match “Securitas es socio líder en soluciones de protección inteligente.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18	Chugach Government Solutions, LLC	Exact match	Anchorage, AK, United StatesHQ recorded Nov 5, 2026	1,001-5,000	986 contacts →
	Exact match “Chugach Government Solutions,(CGS) is a government contracting company formed by Chugach Alaska Corporation.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19	Strong Segurança, S.A	Exact match	Amadora, PortugalHQ recorded Nov 5, 2026	5,001-10,000	969 contacts →
	Exact match “Security Company Electronics developers Systems integrator” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20	DSA	Exact match	Trevose, VA, United StatesHQ recorded Nov 5, 2026	201-500	944 contacts →
	Exact match “Data Systems Analysts (DSA) is a mission technology company.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21	NEC Australia	Exact match	Docklands, AustraliaHQ recorded Nov 5, 2026	501-1,000	935 contacts →
	Exact match “NEC has delivered world-class technology solutions and services to customers across the globe, for more than a century.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22	Security 101	Exact match	West Palm Beach, TN, United StatesHQ recorded Nov 5, 2026	501-1,000	927 contacts →
	Exact match “Security 101® is a nationwide leader in designing, installing, and maintaining advanced security systems tailored to the unique needs of organizations of all sizes.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23	Quantum SKY	Exact match	Reston, VA, United StatesHQ recorded Nov 5, 2026	1,001-5,000	921 contacts →
	Exact match “Quantum Sky is a mission technology company that builds secure AI, cyber, cloud, and quantum capabilities for defense, intelligence, and federal civilian agencies.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24	Methodex Systems Pvt. LTD	Exact match	New Delhi, IndiaHQ recorded Nov 5, 2026	501-1,000	911 contacts →
	Exact match “Methodex Systems Pvt.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25	Securitas Norge	Exact match	Oslo, NorwayHQ recorded Nov 5, 2026	5,001-10,000	859 contacts →
	Exact match “Securitas AS er det største og eldste sikkerhetsselskapet i Norge.” 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 “government security system suppliers”. 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 15,988 government security system suppliers worldwide

See the full list, filter by size, metro and specialty, and access 45,310 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Government security system suppliers worldwide at a glance

As of Nov 5, 2026

17.6%Verified-email coverage

16.1Average contacts per company

11-50Median size (employees)

1.3%Largest-city concentration · Sao Paulo

Nov 5, 2026Page data refreshed

Companies by employee count

1-10

7,019

11-50

5,919

51-200

1,919

201-500

490

501-1,000

183

1,001-5,000

159

5,001-10,000

10001+

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 government security system suppliers are linked below.
What qualifies: Company records worldwide whose business descriptions match “government security system suppliers” 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 45,310 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.

Government security system suppliers by location

75 lists · largest first

Every Government security system suppliers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 “government security system suppliers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many government security system suppliers are there worldwide?

RevenueBase identified 15,988 company matches for government security system suppliers 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?

Peraton tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most government security system suppliers?

The United States leads with 2,757 companies, followed by the United Kingdom (1,146) and Brazil (940). Every government security system suppliers list by country and city is linked on this page.

Which city has the most government security system suppliers?

Sao Paulo leads with 211 company records, followed by London (140) and Dubai (112).

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 45,310 professional contacts with verified work emails tracked across these 15,988 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.