Company lists · Data refreshed September 2026

Top 25 Surveillance and monitoring companies based in the United States

Name: Surveillance and monitoring 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 22, 2026 4,226 companies tracked

RevenueBase identified 4,226 surveillance and monitoring companies headquartered in the United States as of September 2026 and tracks 68,855 professional contacts across them, including 17,423 with verified work emails. Houston is the largest hub.

This list covers surveillance and monitoring 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 22, 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 22, 2026 86% judged on-target in blind review

4,226Companies

68,855Contacts tracked

17,423Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest surveillance and monitoring companies based in the United States

Ranked by team size

Top 25 of 4,226 surveillance and monitoring companies based in the United States, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to surveillance and monitoring 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	U.S. Security Associates, INC	Indirect evidence	Roswell, GA, United StatesHQ checked Sep 22, 2026	10001+	3,592 contacts →
	Indirect evidence “U.S.” Source: RevenueBase Database · checked Sep 22, 2026
2	Automated Systems Design, INC	Indirect evidence	Alpharetta, GA, United StatesHQ checked Sep 22, 2026	n/a	2,678 contacts →
	Indirect evidence “Since 1987, Automated Systems Design, Inc.(ASD®) a five-time Inc.” Source: RevenueBase Database · checked Sep 22, 2026
3	Everon	Indirect evidence	Irving, TX, United StatesHQ checked Sep 22, 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 22, 2026
4	Protection 1 Security Solutions	Indirect evidence	Romeoville, IL, United StatesHQ checked Sep 22, 2026	1,001-5,000	1,406 contacts →
	Indirect 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 22, 2026
5	Vector Security	Indirect evidence	Warrendale, PA, United StatesHQ checked Sep 22, 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 22, 2026
6	Safe Haven Security Services, LLC	Indirect evidence	North Kansas City, MO, United StatesHQ checked Sep 22, 2026	1,001-5,000	1,276 contacts →
	Indirect evidence “Established in Safe Haven Security has grown to become the nation’s largest ADT-authorized dealer, trusted by homeowners and businesses across the country.” Source: RevenueBase Database · checked Sep 22, 2026
7	Titan Security Group	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 22, 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 22, 2026
8	Security 101	Indirect evidence	West Palm Beach, FL, United StatesHQ checked Sep 22, 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 22, 2026
9	Securitas Electronic Security, INC	Indirect evidence	Uniontown, OH, United StatesHQ checked Sep 22, 2026	10001+	839 contacts →
	Indirect evidence “Securitas knows Security.” Source: RevenueBase Database · checked Sep 22, 2026
10	ADT Commercial	Indirect evidence	Boca Raton, FL, United StatesHQ checked Sep 22, 2026	n/a	799 contacts →
	Indirect evidence “ADT Commercial, LLC was acquired by GTCR and is now Everon, LLC.” Source: RevenueBase Database · checked Sep 22, 2026
11	CPI Security	Indirect evidence	Charlotte, NC, United StatesHQ checked Sep 22, 2026	501-1,000	763 contacts →
	Indirect evidence “For more than 30 years, CPI Security has been a leader in customized home and business security and home automation services.” Source: RevenueBase Database · checked Sep 22, 2026
12	Pro-Vigil Surveillance Services	Strong evidence	San Antonio, TX, United StatesHQ checked Sep 22, 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 22, 2026
13	LVT Liveview Technologies	Partial evidence	American Fork, UT, United StatesHQ checked Sep 22, 2026	501-1,000	697 contacts →
	Partial evidence “LVT provides rapidly-deployable surveillance hardware that runs on our proprietary SaaS platform.” Source: RevenueBase Database · checked Sep 22, 2026
14	Guardian Protection	Indirect evidence	Warrendale, PA, United StatesHQ checked Sep 22, 2026	501-1,000	677 contacts →
	Indirect evidence “Protecting homes and businesses since 1950, Guardian Protection is one of the nation's largest and most highly regarded security companies.” Source: RevenueBase Database · checked Sep 22, 2026
15	BI Incorporated	Partial evidence	Boulder, CO, United StatesHQ checked Sep 22, 2026	1,001-5,000	580 contacts →
	Partial 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 22, 2026
16	Alert 360	Indirect evidence	Tulsa, TX, United StatesHQ checked Sep 22, 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 22, 2026
17	Ford Audio-Video	Partial evidence	Oklahoma City, OK, United StatesHQ checked Sep 22, 2026	501-1,000	564 contacts →
	Partial evidence “Ford AV designs, installs, and services professional and commercial sound, audio-video, network infrastructure, and security surveillance systems for organizations including…” Source: RevenueBase Database · checked Sep 22, 2026
18	Stealth Monitoring, INC	Partial evidence	Dallas, TX, United StatesHQ checked Sep 22, 2026	201-500	561 contacts →
	Partial 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 22, 2026
19	ITI	Partial evidence	Bluffton, IN, United StatesHQ checked Sep 22, 2026	n/a	545 contacts →
	Partial evidence “At Indiana Technical Installations we provide IT Services/Networking, Home & Business Security/Surveillance Services, Custom Audio/Video and more.” Source: RevenueBase Database · checked Sep 22, 2026
20	Rapid Response Monitoring	Partial evidence	Syracuse, NY, United StatesHQ checked Sep 22, 2026	501-1,000	490 contacts →
	Partial evidence “Rapid Response Monitoring is a leading provider of professional monitoring services founded in 1992.” Source: RevenueBase Database · checked Sep 22, 2026
21	Amarok Security	Partial evidence	Columbia, SC, United StatesHQ checked Sep 22, 2026	201-500	440 contacts →
	Partial evidence “AMAROK™ is a nationwide commercial security company specializing in comprehensive perimeter security using electric fencing and surveillance tools like cameras, lights, and alarms.” Source: RevenueBase Database · checked Sep 22, 2026
22	Napco Security Technologies	Indirect evidence	Amityville, NY, United StatesHQ checked Sep 22, 2026	501-1,000	427 contacts →
	Indirect evidence “NAPCO Security Technologies (NASDAQ: NSSC) is one of the world's leading manufacturers of technologically advanced electronic security equipment including intrusion and fire alarm…” Source: RevenueBase Database · checked Sep 22, 2026
23	Tech Electronics	Indirect evidence	St. Louis, MO, United StatesHQ checked Sep 22, 2026	201-500	406 contacts →
	Indirect evidence “Since we opened our doors in 1963, relationships have been are our strength by putting people before products.” Source: RevenueBase Database · checked Sep 22, 2026
24	Digital Monitoring Products	Indirect evidence	Springfield, MO, United StatesHQ checked Sep 22, 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 22, 2026
25	Guardian Alarm	Indirect evidence	Southfield, MI, United StatesHQ checked Sep 22, 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 22, 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 and monitoring 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 and monitoring companies.
Partial evidence: Its own public description names part of surveillance and monitoring companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name surveillance and monitoring 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 4,226 surveillance and monitoring companies based in the United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 17,423 reachable decision-makers.

Free signup · no credit card

View the full list →

Surveillance and monitoring companies based in the United States at a glance

As of Sep 22, 2026

25.3%Verified-email coverage

16.3Average contacts per company

11-50Median size (employees)

2.0%Largest-city concentration · Houston

Sep 22, 2026Page data refreshed

Companies by employee count

1-10

2,035

11-50

1,637

51-200

404

201-500

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 4,226 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 and monitoring 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 and monitoring 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 and monitoring 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 and monitoring 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, 17,423 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 22, 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 and monitoring companies by metro

Surveillance and monitoring companies in Houston85
Surveillance and monitoring companies in New York76
Surveillance and monitoring companies in Miami49
Surveillance and monitoring companies in Dallas41
Surveillance and monitoring companies in Los Angeles39
Surveillance and monitoring companies in Atlanta32
Surveillance and monitoring companies in Indianapolis29
Surveillance and monitoring companies in Phoenix29
Surveillance and monitoring companies in San Antonio27
Surveillance and monitoring companies in Austin25
Surveillance and monitoring companies in Chicago25

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 and monitoring 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 and monitoring companies are there based in the United States?

RevenueBase identified 4,226 surveillance and monitoring 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?

U.S. Security Associates, INC, headquartered in Roswell, tops this list with the largest team on record.

Which city has the most surveillance and monitoring companies?

Houston leads with 85 headquartered companies, followed by New York (76) and Miami (49).

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 17,423 verified decision-maker contacts tracked across these 4,226 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 22, 2026.

Ready to reach these companies? Verified emails and direct dials for all 4,226 surveillance and monitoring companies based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

Surveillance and monitoring companies by geography

Browse the directory

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.