Company lists · Data refreshed September 2026

Top 25 Third party security assessment services based in the United States

RevenueBase identified 357 company matches for third party security assessment services associated with the United States as of September 2026 and tracks 3,759 professional contacts across them, including 1,602 with verified work emails. New York is the largest hub.

This list covers company matches for third party security assessment services associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 29, 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 RevenueBase SmartSearch · Exact Recorded Sep 29, 2026 How this list was built
357Companies
3,759Contacts tracked
1,602Verified emails
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The 25 largest third party security assessment services based in the United States

Ranked by team size
Top 25 of 357 company matches for third party security assessment services based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 29, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchMountain View, CA, United StatesHQ recorded Sep 29, 2026201-500329 contacts →

Exact match

“UpGuard is the only platform that unifies cyber risk management across the vendor supply chain, attack surface, and human workforce.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
2Exact matchBoston, MA, United StatesHQ recorded Sep 29, 202651-200148 contacts →

Exact match

“Black Kite is an AI-native third-party cyber risk management platform built for the connected world.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
3Exact matchNashville, TN, United StatesHQ recorded Sep 29, 202651-200139 contacts →

Exact match

“KirkpatrickPrice is a licensed information security CPA firm, a PCI QSA, and a HITRUST CSF Assessor, providing assurance services to over clients worldwide.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
4Exact matchFrisco, TX, United StatesHQ recorded Sep 29, 202651-200135 contacts →

Exact match

“HITRUST is the leader in validated cybersecurity assurance used in third-party risk management and compliance.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
5Exact matchNew York, NY, United StatesHQ recorded Sep 29, 202651-200117 contacts →

Exact match

“Panorays is a leading provider of third-party cyber risk management solutions, helping businesses optimize their defenses for each unique third-party relationship.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
6Exact matchBaton Rouge, LA, United StatesHQ recorded Sep 29, 202651-200115 contacts →

Exact match

“TraceSecurity is a leading cybersecurity services company, providing a broad range of services and solutions in IT security compliance, risk and vulnerability management, and…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
7Exact matchAlexandria, VA, United StatesHQ recorded Sep 29, 2026n/a113 contacts →

Exact match

“Strategic Security is an IT Security consulting firm that provides in-depth technical security assessments of your network, web application, and regulatory compliance gap analysis…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
8Exact matchDenver, CO, United StatesHQ recorded Sep 29, 202651-200111 contacts →

Exact match

“DirectDefense provides enterprise risk assessments, penetration testing, ICS/SCADA security services, and 24/7 managed security services for companies of all sizes.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
9Exact matchSeattle, WA, United StatesHQ recorded Sep 29, 202651-200107 contacts →

Exact match

“IOActive is a trusted partner for Global enterprises, providing research-fueled security services across all industries.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
10Exact matchNashville, TN, United StatesHQ recorded Sep 29, 2026201-50098 contacts →

Exact match

“Venminder by Ncontracts is an industry recognized leader of third-party risk management solutions.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
11Exact matchPhoenix, AZ, United StatesHQ recorded Sep 29, 202651-20092 contacts →

Exact match

“Mitratech Prevalent takes the pain out of third-party risk management (TPRM).”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
12Exact matchSt. Charles, IL, United StatesHQ recorded Sep 29, 202651-20068 contacts →

Exact match

“We've been serving and defending businesses since 2008 as trusted, personable guides in this complex, ever-changing, high-stakes field-MSSP Alert's Top 50 MSSPs Of 2020 -LogRhythm…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
13Exact matchFairway, KS, United StatesHQ recorded Sep 29, 202651-20057 contacts →

Exact match

“BARR Advisory is a security and compliance solutions provider specializing in cybersecurity and compliance for organizations with high-value data that serve regulated industries…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
14Exact matchNorth Providence, RI, United StatesHQ recorded Sep 29, 202611-5051 contacts →

Exact match

“Founded in 2010, Compass IT Compliance is a nationwide leader in providing IT security, compliance, and risk management services to organizations of all sizes in all industries.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
15Exact matchColorado Springs, CO, United StatesHQ recorded Sep 29, 202651-20046 contacts →

Exact match

“Johanson Group has provided Security & Compliance Audit Services to public and private companies in a variety of industries across the world.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
16Exact matchBirmingham, AL, United StatesHQ recorded Sep 29, 202611-5046 contacts →

Exact match

“SecurIT360 is a unique company driven by Cyber knowledge and applying it to eliminate blind spots.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
17Exact matchJacksonville, FL, United StatesHQ recorded Sep 29, 202611-5044 contacts →

Exact match

“Founded in 2010, Secure Ideas is a small-business consulting firm.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
18Exact matchRedmond, WA, United StatesHQ recorded Sep 29, 202651-20038 contacts →

Exact match

“For over two decades, marquee clients have trusted Casaba to test the most sophisticated products in the world.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
19Exact matchSan Francisco, CA, United StatesHQ recorded Sep 29, 202611-5037 contacts →

Exact match

“VISO TRUST is building the future of third-party risk management.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
20Exact matchNashville, TN, United StatesHQ recorded Sep 29, 202651-20037 contacts →

Exact match

“Redspin, a division of Clearwater, has become one of the most trusted cybersecurity companies for the Defense Industrial Base.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
21Exact matchAshburn, VA, United StatesHQ recorded Sep 29, 202651-20034 contacts →

Exact match

“Lunarline is a leading cybersecurity and 3PAO service provider to the U.S.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
22Exact matchBaltimore, MD, United StatesHQ recorded Sep 29, 202611-5033 contacts →

Exact match

“Companies come to ISE when they need to find and fix their security vulnerabilities and prove their tech is secure.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
23Exact matchLafayette, IN, United StatesHQ recorded Sep 29, 202611-5030 contacts →

Exact match

“We provides a Managed SOC/SIEM as a Managed Security Service Provider (MSSP) and IT audit solutions as an audit firm.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
24Exact matchAlexandria, VA, United StatesHQ recorded Sep 29, 202611-5027 contacts →

Exact match

“Securicon provides expert consulting for application, system and network security.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
25Exact matchIrvine, CA, United StatesHQ recorded Sep 29, 202651-20025 contacts →

Exact match

“GRMS is the recognized leader in providing customizable supplier risk assessment programs in over 120 countries worldwide.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase

Showing 25 of 357 third party security assessment services based in the United States

See the full list, filter by size, metro and specialty, and access 1,602 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Third party security assessment services based in the United States at a glance

As of Sep 29, 2026
42.6%Verified-email coverage
10.5Average contacts per company
1-10Median size (employees)
4.2%Largest-city concentration · New York
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
218
11-50
101
51-200
29
201-500
6
1,001-5,000
1
5,001-10,000
2

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 357 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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
Company records associated with the United States whose business descriptions match “third party security assessment services” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 1,602 professional contacts with verified work emails across the full matched dataset. 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 29, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “third party security assessment services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many third party security assessment services are there based in the United States?

RevenueBase identified 357 company matches for third party security assessment services associated with the United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Upguard tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most third party security assessment services?

New York leads with 15 company records, followed by Austin (11) and Seattle (8).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 1,602 professional contacts with verified work emails tracked across these 357 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 29, 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 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.