Company lists · Data refreshed September 2026

Top 25 Perimeter security companies based in the United States

Name: Perimeter security 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 5, 2026 917 companies tracked

RevenueBase identified 917 perimeter security companies headquartered in the United States as of September 2026 and tracks 17,310 professional contacts across them, including 5,259 with verified work emails and 6,309 with mobile numbers. New York is the largest hub.

This list covers perimeter security 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 5, 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 5, 2026 86% judged on-target in blind review

917Companies

17,310Contacts tracked

5,259Verified emails

6,309Mobile numbers

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The 25 largest perimeter security companies based in the United States

Ranked by team size

Top 25 of 917 perimeter security companies based in the United States, ranked by team size, largest first. Data refreshed Sep 5, 2026. RevenueBase Smart Search rates how each company's information relates to perimeter security 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	Automated Systems Design, INC	Indirect evidence	Alpharetta, GA, United StatesHQ checked Sep 5, 2026	n/a	2,678 contacts →
	Indirect evidence “Since 1987, Automated Systems Design, Inc.(ASD®) a five-time Inc.” Source: RevenueBase Database · checked Sep 5, 2026
2	Security 101	Partial evidence	West Palm Beach, FL, United StatesHQ checked Sep 5, 2026	501-1,000	849 contacts →
	Partial 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 5, 2026
3	Amarok Security	Strong evidence	Columbia, SC, United StatesHQ checked Sep 5, 2026	201-500	440 contacts →
	Strong 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 5, 2026
4	AFA Protective Systems, INC	Indirect evidence	Syosset, NY, United StatesHQ checked Sep 5, 2026	201-500	302 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 5, 2026
5	Northland Controls	Partial evidence	Fremont, CA, United StatesHQ checked Sep 5, 2026	201-500	263 contacts →
	Partial evidence “Northland Controls designs, installs, manages and harmonizes physical security systems across the globe with unparalleled services.” Source: RevenueBase Database · checked Sep 5, 2026
6	Wittenbach	Partial evidence	Sparks, MD, United StatesHQ checked Sep 5, 2026	201-500	244 contacts →
	Partial evidence “For over 50 years, Wittenbach has been a trusted leader in advanced security solutions in financial and commercial industries.” Source: RevenueBase Database · checked Sep 5, 2026
7	NAVCO	Partial evidence	Orange, CA, United StatesHQ checked Sep 5, 2026	51-200	232 contacts →
	Partial evidence “One of the largest privately held national electronic security system integrator in the USA, NAVCO keeps you one step ahead of ever-changing technology.” Source: RevenueBase Database · checked Sep 5, 2026
8	Alarm Detection Systems	Indirect evidence	Aurora, IL, United StatesHQ checked Sep 5, 2026	201-500	225 contacts →
	Indirect evidence “Family owned and operated since 1968, Alarm Detection Systems, Inc.(ADS) understands that nothing is more important than the safety of your family and the protection of your…” Source: RevenueBase Database · checked Sep 5, 2026
9	Stone Security, A Bearcom Company	Partial evidence	Salt Lake City, UT, United StatesHQ checked Sep 5, 2026	201-500	202 contacts →
	Partial evidence “Stone Security has been driving the implementation of network-based surveillance, access control and intrusion systems for over 15 years.” Source: RevenueBase Database · checked Sep 5, 2026
10	GIL Korta	Partial evidence	Boca Raton, FL, United StatesHQ checked Sep 5, 2026	1,001-5,000	192 contacts →
	Partial evidence “At Red Hawk Fire & Security, we install, test and inspect, integrate, service and monitor a comprehensive range of advanced technologies custom designed for your specific business…” Source: RevenueBase Database · checked Sep 5, 2026
11	Total Security Solutions	Partial evidence	Fowlerville, MI, United StatesHQ checked Sep 5, 2026	51-200	174 contacts →
	Partial evidence “Total Security Solutions was founded in 2004 on the shared belief that everyone deserves protection from physical attacks.” Source: RevenueBase Database · checked Sep 5, 2026
12	Aegis Protective Services	Partial evidence	Cincinnati, OH, United StatesHQ checked Sep 5, 2026	201-500	165 contacts →
	Partial evidence “Security Guard and Technology Services.” Source: RevenueBase Database · checked Sep 5, 2026
13	Sentry Security	Partial evidence	Wheeling, IL, United StatesHQ checked Sep 5, 2026	n/a	159 contacts →
	Partial evidence “Comprehensive, cutting-edge integrated security systems to protect your people, business and assets for years to come.” Source: RevenueBase Database · checked Sep 5, 2026
14	Long Fence	Strong evidence	Capitol Heights, MD, United StatesHQ checked Sep 5, 2026	201-500	156 contacts →
	Strong evidence “Since 1945, Long® Fence has provided solutions for perimeter security and access control to government, industrial, commercial, and residential consumers in the mid-Atlantic…” Source: RevenueBase Database · checked Sep 5, 2026
15	OLD Account	Indirect evidence	Hammond, LA, United StatesHQ checked Sep 5, 2026	n/a	156 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 5, 2026
16	Gc&e Systems Group	Indirect evidence	Peachtree Corners, GA, United StatesHQ checked Sep 5, 2026	201-500	146 contacts →
	Indirect evidence “Founded in GC & E Systems Group, LLC (GC & E), headquartered in Peachtree Corners, GA with a major office located in Tampa, FL, is a wholly-owned subsidiary of Bristol Bay Native…” Source: RevenueBase Database · checked Sep 5, 2026
17	EPS Security	Partial evidence	Grand Rapids, MI, United StatesHQ checked Sep 5, 2026	201-500	140 contacts →
	Partial evidence “A home and business security provider, EPS Security was founded in Grand Rapids, Michigan.” Source: RevenueBase Database · checked Sep 5, 2026
18	Advantor Systems	Partial evidence	Orlando, FL, United StatesHQ checked Sep 5, 2026	51-200	139 contacts →
	Partial evidence “For over five decades, Advantor Systems has been a security technology manufacturer and global security solutions integrator.” Source: RevenueBase Database · checked Sep 5, 2026
19	I2g Systems	Partial evidence	Ann Arbor, MI, United StatesHQ checked Sep 5, 2026	201-500	134 contacts →
	Partial evidence “i2G Systems is an industry leading safety and security technology and professional services firm, specializing in design, engineering, program management, installation…” Source: RevenueBase Database · checked Sep 5, 2026
20	Bulldog Security Services, LLC	Partial evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	201-500	128 contacts →
	Partial evidence “Bulldog Security Services is a family-owned national ADT Authorized Dealer with over a decade of industry experience.” Source: RevenueBase Database · checked Sep 5, 2026
21	Vanguard Fire & Security Systems, INC	Partial evidence	Grand Rapids, MI, United StatesHQ checked Sep 5, 2026	51-200	121 contacts →
	Partial evidence “Vanguard Fire & Security Systems, is a full service fire protection, life safety and security systems contractor with over fifty years experience in protecting people, property…” Source: RevenueBase Database · checked Sep 5, 2026
22	Evergreen Fire And Security	Partial evidence	Tacoma, WA, United StatesHQ checked Sep 5, 2026	51-200	120 contacts →
	Partial evidence “Evergreen Fire and Security has proudly served government and commercial businesses since We provide technically advance and innovative life safety and security solutions that…” Source: RevenueBase Database · checked Sep 5, 2026
23	ESCC	Partial evidence	New York, NY, United StatesHQ checked Sep 5, 2026	11-50	113 contacts →
	Partial evidence “ESCC has led the way in integrated security and communications applications for commercial properties, high-end residential properties, and new development projects for over 30…” Source: RevenueBase Database · checked Sep 5, 2026
24	Priority ONE Security	Partial evidence	Greenville, SC, United StatesHQ checked Sep 5, 2026	51-200	104 contacts →
	Partial evidence “Priority One is a privately owned and operated security systems company located in Greenville, SC.” Source: RevenueBase Database · checked Sep 5, 2026
25	Integrated Protection Services	Partial evidence	Cincinnati, OH, United StatesHQ checked Sep 5, 2026	51-200	89 contacts →
	Partial evidence “Integrated Protection Services (IPS) helps building owners and operators by designing, installing, and maintaining fire alarm, security, access control, and video surveillance…” Source: RevenueBase Database · checked Sep 5, 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: perimeter security 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 perimeter security companies.
Partial evidence: Its own public description names part of perimeter security companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name perimeter security 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 917 perimeter security companies based in the United States

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Perimeter security companies based in the United States at a glance

As of Sep 5, 2026

30.4%Verified-email coverage

36.4%Mobile-number coverage

18.9Average contacts per company

11-50Median size (employees)

2.2%Largest-city concentration · New York

Sep 5, 2026Page data refreshed

Companies by employee count

1-10

360

11-50

417

51-200

106

201-500

501-1,000

1,001-5,000

5,001-10,000

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

4,9000–30

33031–60

161–90

090–180

28180+

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 perimeter security 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 “perimeter security 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 perimeter security 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 perimeter security 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, 5,259 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 5, 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.

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 perimeter security 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 perimeter security companies are there based in the United States?

RevenueBase identified 917 perimeter security 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?

Automated Systems Design, INC, headquartered in Alpharetta, tops this list with the largest team on record.

Which city has the most perimeter security companies?

New York leads with 20 headquartered companies, followed by Houston (19) and Dallas (11).

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 5,259 verified decision-maker contacts tracked across these 917 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 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 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.