Company lists · Data refreshed September 2026

Top 25 Surveillance companies worldwide

Name: Surveillance companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 18,205 companies tracked

RevenueBase identified 18,205 surveillance companies worldwide as of September 2026 and tracks 274,844 professional contacts across them, including 32,440 with verified work emails. The United States is the largest market and London the largest hub.

This list covers surveillance 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 21, 2026. Country and city lists for surveillance 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 21, 2026 86% judged on-target in blind review

18,205Companies

274,844Contacts tracked

32,440Verified emails

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The 25 largest surveillance companies worldwide

Ranked by team size

Top 25 of 18,205 surveillance companies worldwide, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to surveillance companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Verisure	Indirect evidence	Global Hq - Versoix, GermanyHQ checked Sep 21, 2026	10001+	14,199 contacts →
	Indirect evidence “Verisure is the global leader in professionally monitored security services by customers served, with a market-leading presence across Europe and Latin America.” Source: RevenueBase Database · checked Sep 21, 2026
2	Securitas France	Indirect evidence	Issy-les-moulineaux, FranceHQ checked Sep 21, 2026	10001+	3,843 contacts →
	Indirect evidence “Securitas vous apporte son savoir‑faire et ses compétences dans la sécurisation de votre entreprise.” Source: RevenueBase Database · checked Sep 21, 2026
3	Inter-Con Security	Indirect evidence	Pasadena, CA, United StatesHQ checked Sep 21, 2026	10001+	3,612 contacts →
	Indirect evidence “EVERYWHERE SECURITY MATTERS.” Source: RevenueBase Database · checked Sep 21, 2026
4	U.S. Security Associates, INC	Indirect evidence	Roswell, GA, United StatesHQ checked Sep 21, 2026	10001+	3,592 contacts →
	Indirect evidence “U.S.” Source: RevenueBase Database · checked Sep 21, 2026
5	Paragon Security	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 21, 2026	1,001-5,000	2,365 contacts →
	Indirect evidence “Founded in 1976, Paragon Security is Ontario’s largest privately owned security company.” Source: RevenueBase Database · checked Sep 21, 2026
6	Security Segurança E Serviços	Indirect evidence	São Paulo, BrazilHQ checked Sep 21, 2026	5,001-10,000	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, 2026
7	Pronet Security Services	Indirect evidence	Istanbul, TürkiyeHQ checked Sep 21, 2026	1,001-5,000	2,126 contacts →
	Indirect evidence “Pronet is the leading electronic security company that offers residential and commercial security solutions in Turkey.” Source: RevenueBase Database · checked Sep 21, 2026
8	Everon	Indirect evidence	Irving, TX, United StatesHQ checked Sep 21, 2026	1,001-5,000	2,045 contacts →
	Indirect 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 21, 2026
9	Teledyne Flir	Indirect evidence	Wilsonville, OR, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,739 contacts →
	Indirect evidence “Teledyne FLIR designs, develops, manufactures, markets, and distributes technologies that enhance perception and awareness.” Source: RevenueBase Database · checked Sep 21, 2026
10	Vector Security	Indirect evidence	Warrendale, PA, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,287 contacts →
	Indirect evidence “Vector Security® has protected people and property by providing intelligent security solutions tailored to the needs of the customer for more than 50 years.” Source: RevenueBase Database · checked Sep 21, 2026
11	DSI Security Services	Indirect evidence	Dothan, AL, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,190 contacts →
	Indirect evidence “DSI Security Services offers armed and unarmed uniformed security guard services.” Source: RevenueBase Database · checked Sep 21, 2026
12	Tenon Group	Indirect evidence	Gurgaon, IndiaHQ checked Sep 21, 2026	10001+	1,178 contacts →
	Indirect evidence “With a wealth of 400+ years of cumulative experience of our senior management and a diverse team of trained professionals in India, Singapore and UK, we have consolidated our…” Source: RevenueBase Database · checked Sep 21, 2026
13	Titan Security Group	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,138 contacts →
	Indirect evidence “At Titan Security Group, we understand that each client is unique, with specific security needs shaped by the type of property and its location.” Source: RevenueBase Database · checked Sep 21, 2026
14	Solid Security Sp. Z O.O	Indirect evidence	Warsaw, PolandHQ checked Sep 21, 2026	10001+	1,068 contacts →
	Indirect evidence “Solid Security to doświadczenie, wiedza oraz profesjonalizm działań na rynku ochrony osób i mienia.” Source: RevenueBase Database · checked Sep 21, 2026
15	Onet Sécurité	Indirect evidence	Marseille, FranceHQ checked Sep 21, 2026	10001+	1,007 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 21, 2026
16	Terrier Security Services	Indirect evidence	Bangalore, IndiaHQ checked Sep 21, 2026	10001+	937 contacts →
	Indirect evidence “Founded in 1989, Terrier Security Services is a leading integrated security provider in India, with over guards and 2,480 secured sites.” Source: RevenueBase Database · checked Sep 21, 2026
17	Engefort	Indirect evidence	BrazilHQ checked Sep 21, 2026	1,001-5,000	934 contacts →
	Indirect evidence “A ENGEFORT tem a missão de prestar serviços de vigilância patrimonial, escolta de veículos, proteção VIP a executivos, artistas e autoridades.” Source: RevenueBase Database · checked Sep 21, 2026
18	Securitas Perú	Indirect evidence	Magdalena Del Mar, PeruHQ checked Sep 21, 2026	1,001-5,000	891 contacts →
	Indirect evidence “Securitas es socio líder en soluciones de protección inteligente.” Source: RevenueBase Database · checked Sep 21, 2026
19	Security 101	Indirect evidence	West Palm Beach, FL, United StatesHQ checked Sep 21, 2026	501-1,000	849 contacts →
	Indirect evidence “Security 101® is a nationwide leader in designing, installing, and maintaining advanced security systems tailored to the unique needs of organizations of all sizes.” Source: RevenueBase Database · checked Sep 21, 2026
20	Corps Security	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	1,001-5,000	847 contacts →
	Indirect evidence “Corps Security - experts in security with social value Built on over 165 years of experience, Corps provides specialist security services, across the UK, to ensure the safety of…” Source: RevenueBase Database · checked Sep 21, 2026
21	Proguarda Vigilância E Segurança	Indirect evidence	Aparecida De Goiânia, BrazilHQ checked Sep 21, 2026	1,001-5,000	842 contacts →
	Indirect evidence “Proguarda é segurança.” Source: RevenueBase Database · checked Sep 21, 2026
22	Securitas Electronic Security, INC	Indirect evidence	Uniontown, OH, United StatesHQ checked Sep 21, 2026	10001+	839 contacts →
	Indirect evidence “Securitas knows Security.” Source: RevenueBase Database · checked Sep 21, 2026
23	Miro Seguridad Ltda	Indirect evidence	Medellín, ColombiaHQ checked Sep 21, 2026	5,001-10,000	792 contacts →
	Indirect evidence “Somos una empresa de vigilancia y seguridad privada con más de 42 años de experiencia, generando tranquilidad y bienestar desde la calidad de nuestros servicios, con propuestas…” Source: RevenueBase Database · checked Sep 21, 2026
24	Amalgamated Security Services Limited	Indirect evidence	Tunapuna, Trinidad and TobagoHQ checked Sep 21, 2026	1,001-5,000	726 contacts →
	Indirect evidence “Established in 1983 and incorporated in 1986, Amalgamated Security Services Limited is a reputable company that provides a variety of security services to its clientele which…” Source: RevenueBase Database · checked Sep 21, 2026
25	Pro-Vigil Surveillance Services	Strong evidence	San Antonio, TX, United StatesHQ checked Sep 21, 2026	201-500	702 contacts →
	Strong evidence “Pro-Vigil is the smartest, fastest, most reliable, surveillance and monitoring solution, to enable you to focus on your core business, whether that’s in construction, an auto…” Source: RevenueBase Database · checked Sep 21, 2026

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: surveillance 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 surveillance companies.
Partial evidence: Its own public description names part of surveillance companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name surveillance 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 18,205 surveillance companies worldwide

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Surveillance companies worldwide at a glance

As of Sep 21, 2026

11.8%Verified-email coverage

15.1Average contacts per company

11-50Median size (employees)

1.3%Largest-city concentration · London

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

7,562

11-50

5,813

51-200

2,797

201-500

955

501-1,000

404

1,001-5,000

379

5,001-10,000

10001+

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 surveillance 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 surveillance companies are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “surveillance 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 surveillance 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 surveillance 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, 32,440 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.

Surveillance companies by location

52 lists · largest first

Every Surveillance companies 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 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 surveillance 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 surveillance companies are there worldwide?

RevenueBase identified 18,205 surveillance 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?

Verisure, headquartered in Worldwide, tops this list with the largest team on record.

Which country has the most surveillance companies?

The United States leads with 3,190 companies, followed by the United Kingdom (1,557) and Brazil (1,240). Every surveillance companies list by country and city is linked on this page.

Which city has the most surveillance companies?

London leads with 242 headquartered companies, followed by Sao Paulo (199) and Shenzhen (124).

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 32,440 verified decision-maker contacts tracked across these 18,205 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.