Company lists · Data refreshed September 2026
Top 25 Security research firms based in the United States
RevenueBase identified 1,766 security research firms headquartered in the United States as of September 2026 and tracks 26,892 professional contacts across them, including 8,700 with verified work emails and 8,551 with mobile numbers. New York is the largest hub.
This list covers security research firms 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 6, 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.
The 25 largest security research firms based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 3,649 | ||||
“We are a crowdsourced security company that safeguards organizations' assets from sophisticated threat actors before they can strike-by uniting our customers with trusted hackers…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 2 | 1,232 | ||||
“GuidePoint Security provides trusted cybersecurity expertise, solutions, and services that help organizations make informed decisions and minimize risk.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 3 | 1,050 | ||||
“Brosnan Risk Consultants, Ltd.(BRC) is a security risk management firm focusing on physical security, emergency security, disaster preparedness and recovery and management…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 4 | 874 | ||||
“Trustwave, a LevelBlue Company, is a globally recognized cybersecurity leader that reduces cyber risk and fortifies organizations against disruptive and damaging cyber threats.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 5 | 813 | ||||
“The Synack Red Team is a private freelance security research team that spans 6 continents and over 80 countries.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 6 | 763 | ||||
“STR is driven to deliver impact.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 7 | 553 | ||||
“Security Alliance is a highly experienced provider of security solutions for private and business environments.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 8 | 441 | ||||
“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 6, 2026Thanks. The Data Team will review it. | |||||
| 9 | 364 | ||||
“Horizon3.ai answers the two most important questions in cybersecurity: If someone tried to compromise us, would we hold up?” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 10 | 344 | ||||
“Bishop Fox is recognized as the leading authority in offensive security, providing solutions ranging from continuous penetration testing, red teaming, and attack surface…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 11 | 327 | ||||
“For the security practitioner caught between rapidly evolving threats and demanding executives, IANS Research is a clear-headed resource for decision-making and articulating risk.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 12 | 317 | ||||
“At Ontic, you’ll join a team driven by collaboration, innovation, and a shared sense of purpose.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 13 | 303 | ||||
“Dexis is a mission-driven security analytics company that helps U.S.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 14 | 265 | ||||
“Flashpoint is the leader in threat data and intelligence.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 15 | SpecteropsIndirect evidence | 248 | |||
“SpecterOps is the creator of BloodHound and a leader in Identity Risk Management.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 16 | 244 | ||||
“For over 50 years, Wittenbach has been a trusted leader in advanced security solutions in financial and commercial industries.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 17 | 240 | ||||
“Hirsch is a global leader in unified security solutions, helping enterprise and SMB organisations integrate perimeter security, intrusion detection, access control, video…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 18 | 235 | ||||
“TriCorps is an integrated security and technology firm that specializes in providing cost effective, world-class services tailored to meeting the needs of our clients.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 19 | LoginsoftIndirect evidence | 220 | |||
“For over 20 years, leading companies in Telecom, Cybersecurity, Healthcare, Banking, New Media, and more have come to rely on Loginsoft as a trusted resource for technology talent.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 20 | 204 | ||||
“MindPoint Group, a Quantum Sky company, is a cybersecurity specialist trusted by U.S.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 21 | 202 | ||||
“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 6, 2026Thanks. The Data Team will review it. | |||||
| 22 | 182 | ||||
“With 30 years of experience in cyber defense, DeepSeas is trusted by nearly clients around the world, including Fortune 100 enterprises and mid-market organizations, municipality…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 23 | 178 | ||||
“Global Cyber Certainty Champions, in an uncertain digital world.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 24 | 176 | ||||
“Cyber Advisors is a nationwide leader in cyber security, providing a comprehensive range of Offensive, Defensive, and Risk Management services.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 25 | 173 | ||||
“Our roots trace directly to cyber and information security and our well documented contributions are proof.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 1,766 security research firms based in the United States
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Security research firms based in the United States at a glance
As of Sep 6, 2026Companies by employee count
Verified emails by last verification
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 security research firms, 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 “security research firms”. 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 security research firms, 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, 8,700 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 6, 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.
Security research firms by metro
- Security research firms in New York58
- Security research firms in San Francisco37
- Security research firms in Miami32
- Security research firms in Dallas31
- Security research firms in Austin30
- Security research firms in Houston28
- Security research firms in Los Angeles28
- Security research firms in Washington28
- Security research firms in Atlanta27
Frequently asked
How many security research firms are there based in the United States?
RevenueBase identified 1,766 security research firms 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?
Bugcrowd, headquartered in San Francisco, tops this list with the largest team on record.
Which city has the most security research firms?
New York leads with 58 headquartered companies, followed by San Francisco (37) and Miami (32).
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 8,700 verified decision-maker contacts tracked across these 1,766 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 6, 2026.
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Security research firms by geography
- Security research firms based in the United Kingdom
- Security research firms based in Brazil
- Security research firms based in France
- Security research firms based in Canada
- Security research firms based in Germany
- Security research firms based in Australia
- Security research firms based in the Netherlands
- Security research firms based in Italy
- Security research firms based in Spain
- Security research firms based in Israel
- Security research firms based in Mexico
- Security research firms based in Switzerland
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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.
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