Company lists · Data refreshed September 2026

Top 25 Infrastructure security companies based in the United States

Name: Infrastructure 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 3, 2026 5,196 companies tracked

RevenueBase identified 5,196 infrastructure security companies headquartered in the United States as of September 2026 and tracks 136,523 professional contacts across them, including 49,640 with verified work emails and 48,074 with mobile numbers. New York is the largest hub.

This list covers infrastructure 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 3, 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 3, 2026 86% judged on-target in blind review

5,196Companies

136,523Contacts tracked

49,640Verified emails

48,074Mobile numbers

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The 25 largest infrastructure security companies based in the United States

Ranked by team size

Top 25 of 5,196 infrastructure security companies based in the United States, ranked by team size, largest first. Data refreshed Sep 3, 2026. RevenueBase Smart Search rates how each company's information relates to infrastructure 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	Symantec	Partial evidence	San Jose, CA, United StatesHQ checked Sep 3, 2026	10001+	11,179 contacts →
	Partial evidence “Your backstage pass to the most epic cybersecurity solutions on the market for Endpoint, Network, Data and Cloud security.” Source: RevenueBase Database · checked Sep 3, 2026
2	Crowdstrike	Partial evidence	Remote, United StatesHQ checked Sep 3, 2026	5,001-10,000	10,059 contacts →
	Partial evidence “CrowdStrike (Nasdaq: CRWD), a global cybersecurity leader, has redefined modern security with the world’s most advanced cloud-native platform for protecting critical areas of…” Source: RevenueBase Database · checked Sep 3, 2026
3	Mantech	Indirect evidence	Herndon, VA, United StatesHQ checked Sep 3, 2026	5,001-10,000	9,756 contacts →
	Indirect evidence “MANTECH is more than a technology company.” Source: RevenueBase Database · checked Sep 3, 2026
4	Trellix	Partial evidence	Plano, TX, United StatesHQ checked Sep 3, 2026	1,001-5,000	3,490 contacts →
	Partial evidence “Trellix is a global cybersecurity company delivering intelligence-led cyber resilience for security-conscious organizations at any stage of their journey.” Source: RevenueBase Database · checked Sep 3, 2026
5	OPTIV	Indirect evidence	Leawood, VA, United StatesHQ checked Sep 3, 2026	1,001-5,000	2,206 contacts →
	Indirect evidence “Optiv is the cyber advisory and solutions leader, delivering strategic and technical expertise to nearly companies across every major industry.” Source: RevenueBase Database · checked Sep 3, 2026
6	Paragon Systems INC	Partial evidence	Herndon, VA, United StatesHQ checked Sep 3, 2026	10001+	1,946 contacts →
	Partial evidence “Paragon Systems employs over 10,500 professionals in specialized operations providing security, fire, investigations, inspections, cybersecurity, risk management, and mission…” Source: RevenueBase Database · checked Sep 3, 2026
7	Fortra	Indirect evidence	Eden Prairie, MN, United StatesHQ checked Sep 3, 2026	1,001-5,000	1,640 contacts →
	Indirect evidence “Fortra delivers AI-amplified cybersecurity solutions that help organizations use and protect data with confidence.” Source: RevenueBase Database · checked Sep 3, 2026
8	Forcepoint	Partial evidence	Austin, TX, United StatesHQ checked Sep 3, 2026	1,001-5,000	1,620 contacts →
	Partial evidence “Forcepoint simplifies security for global businesses and governments.” Source: RevenueBase Database · checked Sep 3, 2026
9	Dynetics, INC	Strong evidence	Huntsville, AL, United StatesHQ checked Sep 3, 2026	10001+	1,533 contacts →
	Strong evidence “Leidos Dynetics provides responsive, cost-effective engineering, scientific, IT solutions to the national security, cybersecurity, space, and critical infrastructure sectors.” Source: RevenueBase Database · checked Sep 3, 2026
10	Government Acquisitions	Indirect evidence	Cincinnati, OH, United StatesHQ checked Sep 3, 2026	n/a	1,439 contacts →
	Indirect evidence “Government Acquisitions, LLC (GAI) stands at the forefront of a transformative era, where artificial intelligence is reshaping our world and the stakes have never been higher.” Source: RevenueBase Database · checked Sep 3, 2026
11	Thales Cybersecurity Products	Indirect evidence	Austin, TX, United StatesHQ checked Sep 3, 2026	1,001-5,000	1,252 contacts →
	Indirect evidence “Thales is a global leader in cybersecurity, helping the most trusted organizations in the world protect their most critical applications, data, and identities anywhere at scale.” Source: RevenueBase Database · checked Sep 3, 2026
12	Guidepoint Security	Partial evidence	Reston, FL, United StatesHQ checked Sep 3, 2026	1,001-5,000	1,234 contacts →
	Partial evidence “GuidePoint Security provides trusted cybersecurity expertise, solutions, and services that help organizations make informed decisions and minimize risk.” Source: RevenueBase Database · checked Sep 3, 2026
13	Imperva	Indirect evidence	Austin, TX, United StatesHQ checked Sep 3, 2026	10001+	1,211 contacts →
	Indirect evidence “On Dec.” Source: RevenueBase Database · checked Sep 3, 2026
14	PPC	Indirect evidence	Trevose, PA, United StatesHQ checked Sep 3, 2026	201-500	981 contacts →
	Indirect evidence “PPC is now part of DSA” Source: RevenueBase Database · checked Sep 3, 2026
15	Coalfire	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 3, 2026	1,001-5,000	960 contacts →
	Indirect evidence “Coalfire is the premier Cybersecurity and Compliance Services leader for the tech, healthcare, and finance industries.(This page is maintained by Marketing.” Source: RevenueBase Database · checked Sep 3, 2026
16	Tyto Athene, LLC	Indirect evidence	Reston, VA, United StatesHQ checked Sep 3, 2026	1,001-5,000	858 contacts →
	Indirect evidence “At Tyto Athene, we help turn Data to Dominance.” Source: RevenueBase Database · checked Sep 3, 2026
17	Application Specialist Kompany ASK	Indirect evidence	Lansing, MI, United StatesHQ checked Sep 3, 2026	n/a	785 contacts →
	Indirect evidence “ASK is now Convergence Networks!” Source: RevenueBase Database · checked Sep 3, 2026
18	Bitsight	Indirect evidence	Boston, NC, United StatesHQ checked Sep 3, 2026	501-1,000	753 contacts →
	Indirect evidence “Bitsight is the global leader in cyber risk intelligence, leveraging advanced AI to empower organizations with precise insights derived from the industry’s most extensive external…” Source: RevenueBase Database · checked Sep 3, 2026
19	A10 Networks, INC	Strong evidence	San Jose, CA, United StatesHQ checked Sep 3, 2026	501-1,000	673 contacts →
	Strong evidence “A10 Networks provides security and infrastructure solutions for on-premises, hybrid cloud, and edge-cloud environments.” Source: RevenueBase Database · checked Sep 3, 2026
20	Telos Corporation	Partial evidence	Ashburn, NV, United StatesHQ checked Sep 3, 2026	501-1,000	636 contacts →
	Partial evidence “Telos empowers and protects the world’s most security-conscious organizations with solutions for continuous security assurance of individuals, systems, and information.” Source: RevenueBase Database · checked Sep 3, 2026
21	Vikingcloud	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 3, 2026	1,001-5,000	618 contacts →
	Indirect evidence “VikingCloud delivers battle-tested cybersecurity and compliance solutions that simply work.” Source: RevenueBase Database · checked Sep 3, 2026
22	Planned Systems International	Indirect evidence	Columbia, FL, United StatesHQ checked Sep 3, 2026	1,001-5,000	608 contacts →
	Indirect evidence “Since 1988, PSI teams have provided our government customers with innovative, cost effective solutions that solve today’s complex challenges, improve operational efficiencies, and…” Source: RevenueBase Database · checked Sep 3, 2026
23	NIC	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 3, 2026	n/a	578 contacts →
	Indirect evidence “NIC has been providing IT Solutions, Cybersecurity, and Cloud Services for businesses and organizations for the past two decades.” Source: RevenueBase Database · checked Sep 3, 2026
24	Comodo	Partial evidence	Bloomfield, NJ, United StatesHQ checked Sep 3, 2026	51-200	568 contacts →
	Partial evidence “Comodo - Protecting Your Digital World At Comodo, we are dedicated to safeguarding your digital property with Comodo Website Security.” Source: RevenueBase Database · checked Sep 3, 2026
25	Dragos, INC	Partial evidence	Hanover, TX, United StatesHQ checked Sep 3, 2026	501-1,000	544 contacts →
	Partial evidence “Dragos provides the most effective OT cybersecurity technology for industrial and critical infrastructure to deliver on our global mission: to safeguard civilization.” Source: RevenueBase Database · checked Sep 3, 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: infrastructure 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 infrastructure security companies.
Partial evidence: Its own public description names part of infrastructure security companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name infrastructure 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 5,196 infrastructure security companies based in the United States

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Infrastructure security companies based in the United States at a glance

As of Sep 3, 2026

36.4%Verified-email coverage

35.2%Mobile-number coverage

26.3Average contacts per company

1-10Median size (employees)

2.7%Largest-city concentration · New York

Sep 3, 2026Page data refreshed

Companies by employee count

1-10

2,680

11-50

1,703

51-200

576

201-500

120

501-1,000

1,001-5,000

5,001-10,000

10001+

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

00–30

4,44531–60

28,46861–90

15,98890–180

739180+

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 infrastructure 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 “infrastructure 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 infrastructure 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 infrastructure 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, 49,640 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 3, 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.

Infrastructure security 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 infrastructure 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 infrastructure security companies are there based in the United States?

RevenueBase identified 5,196 infrastructure 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?

Symantec, headquartered in San Jose, tops this list with the largest team on record.

Which city has the most infrastructure security companies?

New York leads with 141 headquartered companies, followed by Washington (105) and Houston (98).

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 49,640 verified decision-maker contacts tracked across these 5,196 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 3, 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.