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.

How to read this list HQ checked on every row Match evidence on every row Refreshed Sep 6, 2026 86% judged on-target in blind review
1,766Companies
26,892Contacts tracked
8,700Verified emails
8,551Mobile numbers
Explore all 1,766 companies → Free signup · no credit card · 500 free credits

The 25 largest security research firms based in the United States

Ranked by team size
Top 25 of 1,766 security research firms based in the United States, ranked by team size, largest first. Data refreshed Sep 6, 2026. Evidence rates how directly each company's own description names security research firms: 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
BugcrowdPartial evidence
San Francisco, CA, United StatesHQ checked Sep 6, 2026n/a3,649

“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, 2026
2
Guidepoint SecurityPartial evidence
Reston, VA, United StatesHQ checked Sep 6, 20261,001-5,0001,232

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

Source: company website · checked Sep 6, 2026
3
Brosnan Risk ConsultantsPartial evidence
Pearl River, NY, United StatesHQ checked Sep 6, 20265,001-10,0001,050

“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, 2026
4Chicago, IL, United StatesHQ checked Sep 6, 2026501-1,000874

“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, 2026
5
Synack RED TeamStrong evidence
Austin, TX, United StatesHQ checked Sep 6, 2026n/a813

“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, 2026
6
STRIndirect evidence
Woburn, MA, United StatesHQ checked Sep 6, 2026501-1,000763

“STR is driven to deliver impact.”

Source: company website · checked Sep 6, 2026
7
Security AlliancePartial evidence
Miami, FL, United StatesHQ checked Sep 6, 20261,001-5,000553

Security Alliance is a highly experienced provider of security solutions for private and business environments.”

Source: company website · checked Sep 6, 2026
8Santa Clara, CA, United StatesHQ checked Sep 6, 20265,001-10,000441

“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, 2026
9
horizon3.aiIndirect evidence
San Francisco, CA, United StatesHQ checked Sep 6, 2026201-500364

“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, 2026
10
Bishop FOXPartial evidence
Tempe, AZ, United StatesHQ checked Sep 6, 2026201-500344

“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, 2026
11
IANSStrong evidence
Boston, MA, United StatesHQ checked Sep 6, 202651-200327

“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, 2026
12
ONTICIndirect evidence
Austin, TX, United StatesHQ checked Sep 6, 2026201-500317

“At Ontic, you’ll join a team driven by collaboration, innovation, and a shared sense of purpose.”

Source: company website · checked Sep 6, 2026
13
DEXISPartial evidence
Arlington, VA, United StatesHQ checked Sep 6, 202651-200303

“Dexis is a mission-driven security analytics company that helps U.S.”

Source: company website · checked Sep 6, 2026
14
FlashpointIndirect evidence
New York, NY, United StatesHQ checked Sep 6, 2026201-500265

“Flashpoint is the leader in threat data and intelligence.”

Source: company website · checked Sep 6, 2026
15
SpecteropsIndirect evidence
Alexandria, VA, United StatesHQ checked Sep 6, 2026201-500248

“SpecterOps is the creator of BloodHound and a leader in Identity Risk Management.”

Source: company website · checked Sep 6, 2026
16
WittenbachPartial evidence
Sparks, MD, United StatesHQ checked Sep 6, 2026201-500244

“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, 2026
17
Hirsch USAPartial evidence
Santa Ana, CA, United StatesHQ checked Sep 6, 2026201-500240

“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, 2026
18
TricorpsPartial evidence
Oklahoma City, OK, United StatesHQ checked Sep 6, 2026501-1,000235

“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, 2026
19
LoginsoftIndirect evidence
Chantilly, VA, United StatesHQ checked Sep 6, 2026201-500220

“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, 2026
20Reston, VA, United StatesHQ checked Sep 6, 20261,001-5,000204

“MindPoint Group, a Quantum Sky company, is a cybersecurity specialist trusted by U.S.”

Source: company website · checked Sep 6, 2026
21Salt Lake City, UT, United StatesHQ checked Sep 6, 2026201-500202

“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, 2026
22
DeepseasIndirect evidence
Globally Distributed, United StatesHQ checked Sep 6, 2026201-500182

“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, 2026
23
CypferIndirect evidence
Miami, FL, United StatesHQ checked Sep 6, 202651-200178

“Global Cyber Certainty Champions, in an uncertain digital world.”

Source: company website · checked Sep 6, 2026
24
Cyber AdvisorsPartial evidence
Maple Grove, MN, United StatesHQ checked Sep 6, 2026201-500176

“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, 2026
25Rome, NY, United StatesHQ checked Sep 6, 2026201-500173

“Our roots trace directly to cyber and information security and our well documented contributions are proof.”

Source: company website · checked Sep 6, 2026

Showing 25 of 1,766 security research firms based in the United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 8,700 reachable decision-makers.

Free signup · no credit card

See all 1,766 companies

Security research firms based in the United States at a glance

As of Sep 6, 2026
1-10Median size (employees)
New YorkLargest hub · 58 HQs
8,551Contacts with mobile numbers
Sep 6, 2026Data refreshed

Companies by employee count

1-10
1,046
11-50
519
51-200
134
201-500
44
501-1,000
7
1,001-5,000
7
5,001-10,000
4
10001+
3

Verified emails by last verification

0–30
8,044
31–60
567
61–90
7
90–180
2
180+
80

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.

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.

Ready to reach these companies? Verified emails and direct dials for all 1,766 security research firms based in the United States. Start with a free account, no credit card.

Get the full list

Related lists

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.