Company lists · Data refreshed September 2026

Top 25 Surveillance companies based in the United States

Name: Surveillance companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 3,190 companies tracked

RevenueBase identified 3,190 surveillance companies headquartered in the United States as of September 2026 and tracks 61,755 professional contacts across them, including 13,863 with verified work emails. Houston is the largest hub.

This list covers surveillance companies headquartered in the United States, 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.

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

3,190Companies

61,755Contacts tracked

13,863Verified emails

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The 25 largest surveillance companies based in the United States

Ranked by team size

Top 25 of 3,190 surveillance companies based in the United States, 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	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
2	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
3	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
4	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
5	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
6	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
7	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
8	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
9	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
10	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
11	LVT Liveview Technologies	Strong evidence	American Fork, UT, United StatesHQ checked Sep 21, 2026	501-1,000	697 contacts →
	Strong evidence “LVT provides rapidly-deployable surveillance hardware that runs on our proprietary SaaS platform.” Source: RevenueBase Database · checked Sep 21, 2026
12	Professional Security Consultants, INC	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 21, 2026	1,001-5,000	626 contacts →
	Indirect evidence “Professional Security Consultants, Inc.(PSC) is a world-class provider of security guard services, patrol, investigations, backgrounds, consulting, security screening & specialty…” Source: RevenueBase Database · checked Sep 21, 2026
13	BI Incorporated	Indirect evidence	Boulder, CO, United StatesHQ checked Sep 21, 2026	1,001-5,000	580 contacts →
	Indirect evidence “Established in 1978, BI Incorporated offers government agencies a complete continuum of electronic monitoring technologies and services for reliable community supervision of…” Source: RevenueBase Database · checked Sep 21, 2026
14	Alert 360	Indirect evidence	Tulsa, TX, United StatesHQ checked Sep 21, 2026	501-1,000	572 contacts →
	Indirect evidence “Alert 360 security is a trusted and best-in-class provider of reliable security solutions for homes and businesses.” Source: RevenueBase Database · checked Sep 21, 2026
15	Interface Systems	Indirect evidence	St Louis, MO, United StatesHQ checked Sep 21, 2026	501-1,000	569 contacts →
	Indirect evidence “Interface Systems combines AI-powered technologies with expert remote video monitoring from its US-based Interactive Security Operations Centers (iSOCs).” Source: RevenueBase Database · checked Sep 21, 2026
16	Stealth Monitoring, INC	Strong evidence	Dallas, TX, United StatesHQ checked Sep 21, 2026	201-500	561 contacts →
	Strong evidence “ECAM, a GardaWorld company, provides proactive live video surveillance solutions for businesses and properties in cities all across North America.” Source: RevenueBase Database · checked Sep 21, 2026
17	ADT Security Services	Indirect evidence	Boca Raton, FL, United StatesHQ checked Sep 21, 2026	501-1,000	561 contacts →
	Indirect evidence “ADT Inc, formerly The ADT Corporation, is an American company that provides residential, small and large business electronic security, fire protection, and other related alarm…” Source: RevenueBase Database · checked Sep 21, 2026
18	Coventbridge Group	Strong evidence	Jacksonville, FL, United StatesHQ checked Sep 21, 2026	501-1,000	518 contacts →
	Strong evidence “CoventBridge Group is the leading worldwide full service investigation solutions company providing: Surveillance, SIU and Compliance, Claims Investigation, Counter-Fraud Programs…” Source: RevenueBase Database · checked Sep 21, 2026
19	Rapid Response Monitoring	Indirect evidence	Syracuse, NY, United StatesHQ checked Sep 21, 2026	501-1,000	490 contacts →
	Indirect evidence “Rapid Response Monitoring is a leading provider of professional monitoring services founded in 1992.” Source: RevenueBase Database · checked Sep 21, 2026
20	DTIQ	Strong evidence	Marlborough, MA, United StatesHQ checked Sep 21, 2026	501-1,000	417 contacts →
	Strong evidence “DTiQ is the leading provider of video surveillance and loss prevention technology for restaurants, retail, and c-stores.” Source: RevenueBase Database · checked Sep 21, 2026
21	American Security & Investigations	Indirect evidence	St. Paul, MN, United StatesHQ checked Sep 21, 2026	1,001-5,000	404 contacts →
	Indirect evidence “American Security & Investigations has provided security and investigative services throughout the upper midwest since 1959.” Source: RevenueBase Database · checked Sep 21, 2026
22	Digital Monitoring Products	Indirect evidence	Springfield, MO, United StatesHQ checked Sep 21, 2026	201-500	402 contacts →
	Indirect evidence “DMP specializes in delivering innovative security solutions, including burglary, fire, access control and video security products.” Source: RevenueBase Database · checked Sep 21, 2026
23	Guardian Alarm	Indirect evidence	Southfield, MI, United StatesHQ checked Sep 21, 2026	501-1,000	389 contacts →
	Indirect evidence “Guardian Alarm is one of the largest independently-owned security companies protecting both homes and businesses throughout the Midwest.” Source: RevenueBase Database · checked Sep 21, 2026
24	PELCO	Indirect evidence	Fresno, CA, United StatesHQ checked Sep 21, 2026	501-1,000	378 contacts →
	Indirect evidence “Pelco, a global leader in security hardware, engineers devices that help set a new standard for security, safety and operational efficiency.” Source: RevenueBase Database · checked Sep 21, 2026
25	Cambridge Security Services Corp	Indirect evidence	Fort Lauderdale, FL, United StatesHQ checked Sep 21, 2026	1,001-5,000	346 contacts →
	Indirect evidence “Cambridge Security Services is a private security company that has been in business for more than 30 years.” 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 3,190 surveillance companies based in the United States

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Surveillance companies based in the United States at a glance

As of Sep 21, 2026

22.4%Verified-email coverage

19.4Average contacts per company

11-50Median size (employees)

1.9%Largest-city concentration · Houston

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

1,366

11-50

1,171

51-200

443

201-500

108

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 3,190 companies.

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.
What qualifies: Companies headquartered in the United States 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. Companies headquartered outside United States are excluded even when they keep an office there.
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, 13,863 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 metro

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 based in the United States?

RevenueBase identified 3,190 surveillance companies headquartered in the United States 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?

Inter-Con Security, headquartered in Pasadena, tops this list with the largest team on record.

Which city has the most surveillance companies?

Houston leads with 61 headquartered companies, followed by Miami (57) and New York (55).

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 13,863 verified decision-maker contacts tracked across these 3,190 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.