Company lists · Data refreshed September 2026

Top 23 Industrial cybersecurity companies based in the United States

RevenueBase identified 1,626 industrial cybersecurity companies headquartered in the United States as of September 2026 and tracks 44,338 professional contacts across them, including 20,424 with verified work emails and 13,444 with mobile numbers. New York is the largest hub.

This list covers industrial cybersecurity 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, how directly it supports the match, 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 SmartSearch, 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 Match evidence on every row Refreshed Sep 3, 2026 86% judged on-target in blind review
1,626Companies
44,338Contacts tracked
20,424Verified emails
13,444Mobile numbers
Unlock all 1,626 companies Free signup · no credit card · 500 free credits

The 23 largest industrial cybersecurity companies based in the United States

Ranked by team size
Top 23 of 1,626 industrial cybersecurity companies based in the United States, ranked by team size, largest first. Data refreshed Sep 3, 2026. Evidence rates how directly each company's own description names industrial cybersecurity companies: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#CompanyHeadquartersEmployeesContacts
1
TrellixPartial evidence
Plano, TX, United StatesHQ checked Sep 3, 20261,001-5,0003,490

“Trellix is a global cybersecurity company delivering intelligence-led cyber resilience for security-conscious organizations at any stage of their journey.”

Source: company website · checked Sep 3, 2026
2
OPTIVIndirect evidence
Leawood, VA, United StatesHQ checked Sep 3, 20261,001-5,0002,206

“Optiv is the cyber advisory and solutions leader, delivering strategic and technical expertise to nearly companies across every major industry.”

Source: company website · checked Sep 3, 2026
3
BarracudaPartial evidence
Campbell, GA, United StatesHQ checked Sep 3, 20261,001-5,0002,108

“Barracuda is a leading global cybersecurity company providing complete protection against complex threats for all size business.”

Source: company website · checked Sep 3, 2026
4
FortraPartial evidence
Eden Prairie, MN, United StatesHQ checked Sep 3, 20261,001-5,0001,640

“Fortra delivers AI-amplified cybersecurity solutions that help organizations use and protect data with confidence.”

Source: company website · checked Sep 3, 2026
5Austin, TX, United StatesHQ checked Sep 3, 20261,001-5,0001,252

“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: company website · checked Sep 3, 2026
6
Guidepoint SecurityPartial evidence
Reston, FL, United StatesHQ checked Sep 3, 20261,001-5,0001,234

“GuidePoint Security provides trusted cybersecurity expertise, solutions, and services that help organizations make informed decisions and minimize risk.”

Source: company website · checked Sep 3, 2026
7
PASIndirect evidence
Houston, TX, United StatesHQ checked Sep 3, 2026201-5001,227

“PAS, part of Hexagon's Asset Lifecycle Intelligence division, delivers software solutions that prevent, detect, & remediate cyber threats, reduce process safety risks, and…”

Source: company website · checked Sep 3, 2026
8
ImpervaIndirect evidence
Austin, TX, United StatesHQ checked Sep 3, 202610001+1,211

“On Dec.”

Source: company website · checked Sep 3, 2026
9
Forescout Technologies INCIndirect evidence
San Jose, CA, United StatesHQ checked Sep 3, 20261,001-5,0001,165

“As AI-driven vulnerability and exploitation accelerate attack velocity to machine speed, Forescout is a foundational cyber defense layer that allows organizations to segment and…”

Source: company website · checked Sep 3, 2026
10
Dragos, INCStrong evidence
Hanover, TX, United StatesHQ checked Sep 3, 2026501-1,000544

“Dragos provides the most effective OT cybersecurity technology for industrial and critical infrastructure to deliver on our global mission: to safeguard civilization.”

Source: company website · checked Sep 3, 2026
11
Ultraviolet CyberIndirect evidence
Mclean, AZ, United StatesHQ checked Sep 3, 2026501-1,000517

“UltraViolet Cyber is the only security operations partner that unifies red, blue, and purple team capabilities into one integrated program.”

Source: company website · checked Sep 3, 2026
12
Palo Alto Networks Unit 42Indirect evidence
Santa Clara, CA, United StatesHQ checked Sep 3, 20265,001-10,000438

“Palo Alto Networks Unit 42 brings together world-renowned threat researchers with an elite team of incident responders and security consultants to create an intelligence-driven…”

Source: company website · checked Sep 3, 2026
13
NovacoastPartial evidence
Wichita, TX, United StatesHQ checked Sep 3, 2026201-500378

“Novacoast is an international cybersecurity company specializing in IT services and software development.”

Source: company website · checked Sep 3, 2026
14
Cynet SecurityPartial evidence
Boston, MA, United StatesHQ checked Sep 3, 2026201-500304

“Cynet’s unified, AI-powered cybersecurity platform brings together a full suite of security capabilities in a single, simple solution, backed by 24x7 SOC support.”

Source: company website · checked Sep 3, 2026
15
Cipher A Prosegur CompanyPartial evidence
Miami, FL, United StatesHQ checked Sep 3, 2026201-500294

“We are Cipher, a company from the Prosegur group specializing in Cybersecurity.”

Source: company website · checked Sep 3, 2026
16
NiksunIndirect evidence
Princeton, NJ, United StatesHQ checked Sep 3, 2026201-500274

“In the ever-growing world of Cloud Computing, Big Data and the Internet of Things, NIKSUN® is the industry leader in making the unknown known.”

Source: company website · checked Sep 3, 2026
17Cedar Hill, TX, United StatesHQ checked Sep 3, 2026201-500251

“Baxter Clewis Cybersecurity, we bring to the table a unique set of experiences that allow us to best serve your cybersecurity needs.”

Source: company website · checked Sep 3, 2026
18
LumifiIndirect evidence
Scottsdale, AZ, United StatesHQ checked Sep 3, 202651-200247

“Lumifi Cyber helps organizations illuminate their cyber defense with continuous protection across the full security lifecycle.”

Source: company website · checked Sep 3, 2026
19
GM SectecIndirect evidence
San Juan, United StatesHQ checked Sep 3, 20261,001-5,000241

“GM Sectec is a multi-national organization laser focused on cyber defense, advisory and fraud prevention.”

Source: company website · checked Sep 3, 2026
20Orlando, FL, United StatesHQ checked Sep 3, 2026201-500231

“Fortress is the AI-powered cybersecurity company defending critical infrastructure, government agencies, and their supply chains against cyber threats and mission risks.”

Source: company website · checked Sep 3, 2026
21
Hillstone NetworksIndirect evidence
Santa Clara, CA, United StatesHQ checked Sep 3, 20261,001-5,000231

“Hillstone Networks’ Integrative Cyber Security approach delivers coverage, control, and consolidation to secure digital transformation for more than enterprises worldwide.”

Source: company website · checked Sep 3, 2026
22
VeherePartial evidence
San Francisco, CA, United StatesHQ checked Sep 3, 2026201-500210

“Vehere is an AI cybersecurity company operating at the intersection of national security and enterprise security.”

Source: company website · checked Sep 3, 2026
23Salt Lake City, CO, United StatesHQ checked Sep 3, 2026201-500199

“Stone Security has been driving the implementation of network-based surveillance, access control and intrusion systems for over 15 years.”

Source: company website · checked Sep 3, 2026

Showing 23 of 1,626 industrial cybersecurity companies based in the United States

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Industrial cybersecurity companies based in the United States at a glance

As of Sep 3, 2026
11-50Median size (employees)
New YorkLargest hub · 57 HQs
13,444Contacts with mobile numbers
Sep 3, 2026Data refreshed

Companies by employee count

1-10
768
11-50
572
51-200
197
201-500
42
501-1,000
14
1,001-5,000
22
5,001-10,000
3
10001+
3

Verified emails by last verification

0–30
0
31–60
1,844
61–90
11,560
90–180
6,895
180+
125

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 industrial cybersecurity companies, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 “industrial cybersecurity companies”. Matching reads each company's description, not its industry code or its name.
What we exclude
Companies whose own description does not clearly place them among industrial cybersecurity 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 an evidence 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, 20,424 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.

Frequently asked

How many industrial cybersecurity companies are there based in the United States?

RevenueBase identified 1,626 industrial cybersecurity 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?

Trellix, headquartered in Plano, tops this list with the largest team on record.

Which city has the most industrial cybersecurity companies?

New York leads with 57 headquartered companies, followed by Houston (45) and Austin (35).

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 20,424 verified decision-maker contacts tracked across these 1,626 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.

Ready to reach these companies? Verified emails and direct dials for all 1,626 industrial cybersecurity companies based in the United States. Start with a free account, no credit card.

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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 SmartSearch, 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.