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Company lists · Data verified August 2026

Top 25 Cybersecurity risk assessment firms based in the United States

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 4,953 companies tracked

There are 4,953 cybersecurity risk assessment firms headquartered in the United States (RevenueBase, August 2026). RevenueBase tracks 77,365 professional contacts across them, including 32,288 with verified work emails and 25,956 with mobile numbers. New York is the largest hub.

This list covers cybersecurity risk assessment 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. Data current as of August 28, 2026.

4,953Companies
77,365Contacts tracked
32,288Verified emails
25,956Mobile numbers
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The 25 largest cybersecurity risk assessment firms based in the United States

Ranked by team size
Top 25 of 4,953 cybersecurity risk assessment firms based in the United States, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#CompanyHQEmployeesContactsVerified emails
1TrellixPlano, TX1,001-5,0003,4901,633
2OPTIVChantilly, VA1,001-5,0002,2061,422
3BitdefenderFort Lauderdale, FL1,001-5,0002,1411,230
4FortraEden Prairie, MN1,001-5,0001,6401,037
5Thales Cybersecurity ProductsAustin, TX1,001-5,0001,252645
6Guidepoint SecurityTampa, FL1,001-5,0001,234809
7Forescout Technologies INCSan Jose, CA1,001-5,0001,165841
8ARMISSan Francisco, CA501-1,0001,085799
9Brosnan Risk ConsultantsNewhall, CA5,001-10,0001,047188
10CoalfireChicago, IL1,001-5,000960613
11NetenrichSan Jose, CA501-1,000885261
12BitsightRaleigh, NC501-1,000753158
13Coalition, INCSan Francisco, CA501-1,000719562
14Telos CorporationLas Vegas, NV501-1,000636230
15VikingcloudChicago, IL1,001-5,000618436
16LevelblueDallas, TX1,001-5,000582372
17VeracodeBurlington, MA501-1,000547399
18SecurityscorecardNew York, NY501-1,0005295
19Ultraviolet CyberPhoenix, AZ501-1,000517258
20SecurityhqNew York, NY501-1,000492279
21Xcelerate SolutionsMclean, VA1,001-5,0004458
22Palo Alto Networks Unit 42Santa Clara, CA5,001-10,000438306
23GM SectecSanturce1,001-5,00024169
24Mindpoint Group, A Tyto Athene CompanyReston, VA1,001-5,0002087
25Alert LogicEden Prairie, MN501-1,000176105

Showing 25 of 4,953 cybersecurity risk assessment firms based in the United States

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Cybersecurity risk assessment firms based in the United States at a glance

As of Aug 28, 2026
1-10Median size (employees)
New YorkLargest hub · 183 HQs
25,956Contacts with mobile numbers
61Emails re-verified in last 30 days

Companies by employee count

1-10
2,935
11-50
1,441
51-200
425
201-500
77
501-1,000
24
1,001-5,000
28
5,001-10,000
7

Cybersecurity risk assessment firms by metro

MetroCompanies
Cybersecurity risk assessment firms in New York183
Cybersecurity risk assessment firms in Washington118
Cybersecurity risk assessment firms in Atlanta102
Cybersecurity risk assessment firms in Austin101
Cybersecurity risk assessment firms in Houston96
Cybersecurity risk assessment firms in San Francisco81
Cybersecurity risk assessment firms in Dallas78

How this list was built

Source
The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion
Companies whose own business descriptions match “cybersecurity risk assessment firms”, with match quality audited by blind human judging, and headquartered in the United States.
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
Contact records re-verify on a rolling cadence; 61 contacts on this list were re-verified in the last 30 days.
Refresh
Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many cybersecurity risk assessment firms are there based in the United States?

There are 4,953 cybersecurity risk assessment firms headquartered in the United States as of August 2026 (RevenueBase).

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 cybersecurity risk assessment firms?

New York leads with 183 headquartered companies, followed by Washington (118) and Atlanta (102).

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 32,288 verified decision-maker contacts tracked across these 4,953 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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Related lists

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.

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