Company lists · Data refreshed September 2026
Top 25 Perimeter security software companies based in the United States
RevenueBase identified 159 perimeter security software companies headquartered in the United States as of September 2026 and tracks 21,575 professional contacts across them, including 12,140 with verified work emails. Austin is the largest hub.
This list covers perimeter security software 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 29, 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.
The 25 largest perimeter security software companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 14,289 contacts → | ||||
Indirect evidence “Fortinet makes possible a digital world that we can always trust through its mission to protect people, devices, and data everywhere.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 2 | 2,813 contacts → | ||||
Partial evidence “Infoblox unites networking and security to deliver unmatched performance and protection.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 3 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 4 | 240 contacts → | ||||
Strong evidence “Hirsch is a global leader in unified security solutions, helping enterprise and SMB organisations integrate perimeter security, intrusion detection, access control, video…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 5 | 141 contacts → | ||||
Partial evidence “eSoft is a leader in providing Simply Better Network Security™ to businesses of nearly any size.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 6 | 85 contacts → | ||||
Indirect evidence “In 1981, Southwest Microwave introduced the world’s first commercial bistatic microwave sensor.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 7 | 76 contacts → | ||||
Indirect evidence “Established in 1974, Tusco, Inc.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 8 | 62 contacts → | ||||
Strong evidence “Asylon is the only full-service Air + Ground robotic perimeter security company.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 9 | 43 contacts → | ||||
Indirect evidence “Firewalls.com offers cutting edge products and services designed to provide cost-effective IT solutions in the age of information.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 10 | 43 contacts → | ||||
Partial evidence “Guardiar solves complex security challenges in high-risk environments.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 11 | 42 contacts → | ||||
Strong evidence “Betafence USA is the industry leader and strategic business partner of choice for outdoor perimeter security solutions.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 12 | 37 contacts → | ||||
Strong evidence “Global GRAB Technologies is the hostile vehicle mitigation and perimeter security industry leader trusted by mission-critical government and commercial organizations in the United…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 13 | 34 contacts → | ||||
Indirect evidence “ABOUT US At Zentera, we are redefining cybersecurity with our innovative solutions designed to keep your business applications safe and operational, even in the event of a network…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 14 | 31 contacts → | ||||
Strong evidence “Since 1986 RBtec Perimeter Security Systems has been recognized as a leading perimeter security solutions provider specializing in developing, manufacturing, and integrating…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 15 | 30 contacts → | ||||
Partial evidence “IronSite™ helps you take the complexity out of physical infrastructure security so you can stay focused on running your operation, not managing vendors and vulnerabilities.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 16 | 30 contacts → | ||||
Indirect evidence “With over 30 years of proven experience, Mid-Atlantic Entry Systems, Inc.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 17 | 28 contacts → | ||||
Indirect evidence “Dataway, Inc.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 18 | 24 contacts → | ||||
Strong evidence “Fence Masters® constructs perimeter security and access control solutions for commercial, industrial, institutional, municipal and government projects.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 19 | 23 contacts → | ||||
Indirect evidence “Firewalla is dedicated to making accessible cybersecurity solutions that are simple, affordable, and powerful.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 20 | 23 contacts → | ||||
Partial evidence “Based in Northern Virginia, Blue Ridge Networks is a visionary cybersecurity pioneer providing proven network access, infrastructure, and endpoint security solutions.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 21 | 22 contacts → | ||||
Indirect evidence “Finjan Holdings (NASDAQ:FNJN), founded in 1996, is a technology company committed to enabling innovation.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 22 | 21 contacts → | ||||
Strong evidence “vTECH io provides end-to-end hardware, software, professional services, and security solutions.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 23 | 21 contacts → | ||||
Strong evidence “Barrier1’s perimeter security solutions protect people and property.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 24 | 20 contacts → | ||||
Partial evidence “We offer high security physical security applications for government and industrial clients.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 25 | 19 contacts → | ||||
Indirect evidence “Link11 and Reblaze have united to provide comprehensive, enterprise-grade cybersecurity solutions, making the Internet safer for businesses of all sizes.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
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 software 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 software companies.
- Partial evidence
- Its own public description names part of perimeter security software 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 software 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 159 perimeter security software companies based in the United States
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Perimeter security software companies based in the United States at a glance
As of Sep 29, 2026Companies by employee count
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 159 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 perimeter security software 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 software 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 software 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 software 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, 12,140 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 29, 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 software 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 software companies are there based in the United States?
RevenueBase identified 159 perimeter security software 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?
Fortinet, headquartered in Sunnyvale, tops this list with the largest team on record.
Which city has the most perimeter security software companies?
Austin leads with 6 headquartered companies, followed by Miami (5) and New York (5).
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 12,140 verified decision-maker contacts tracked across these 159 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 29, 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.
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