Company lists · Data refreshed September 2026

Top 25 IT and cybersecurity audit services based in the United States

Name: IT and cybersecurity audit services based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 3,505 companies tracked

RevenueBase identified 3,505 IT and cybersecurity audit services headquartered in the United States as of September 2026 and tracks 42,738 professional contacts across them, including 18,143 with verified work emails. New York is the largest hub.

This list covers IT and cybersecurity audit services 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 21, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 RevenueBase Smart Search rating on every row Refreshed Sep 21, 2026 86% judged on-target in blind review

3,505Companies

42,738Contacts tracked

18,143Verified emails

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The 25 largest IT and cybersecurity audit services based in the United States

Ranked by team size

Top 25 of 3,505 IT and cybersecurity audit services based in the United States, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to IT and cybersecurity audit services: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	OPTIV	Indirect evidence	Leawood, KS, United StatesHQ checked Sep 21, 2026	1,001-5,000	2,222 contacts →
	Indirect evidence “Optiv is the cyber advisory and solutions leader, delivering strategic and technical expertise to nearly companies across every major industry.” Source: RevenueBase Database · checked Sep 21, 2026
2	Thales Cybersecurity Products	Partial evidence	Austin, TX, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,252 contacts →
	Partial evidence “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: RevenueBase Database · checked Sep 21, 2026
3	Guidepoint Security	Partial evidence	Reston, VA, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,232 contacts →
	Partial evidence “GuidePoint Security provides trusted cybersecurity expertise, solutions, and services that help organizations make informed decisions and minimize risk.” Source: RevenueBase Database · checked Sep 21, 2026
4	Coalfire	Partial evidence	Chicago, IL, United StatesHQ checked Sep 21, 2026	1,001-5,000	947 contacts →
	Partial evidence “Coalfire is the premier Cybersecurity and Compliance Services leader for the tech, healthcare, and finance industries.(This page is maintained by Marketing.” Source: RevenueBase Database · checked Sep 21, 2026
5	Cyderes	Indirect evidence	Kansas City, MO, United StatesHQ checked Sep 21, 2026	1,001-5,000	844 contacts →
	Indirect evidence “Today’s threatscape is relentless.” Source: RevenueBase Database · checked Sep 21, 2026
6	A-Lign	Partial evidence	Tampa, FL, United StatesHQ checked Sep 21, 2026	501-1,000	798 contacts →
	Partial evidence “A-LIGN is the leading provider of high-quality, efficient cybersecurity compliance programs.” Source: RevenueBase Database · checked Sep 21, 2026
7	Network Intelligence	Indirect evidence	Plano, TX, United StatesHQ checked Sep 21, 2026	501-1,000	641 contacts →
	Indirect evidence “At Network Intelligence, we combine our team of 500+ security professionals with Transilience – our cutting-edge AI platform.” Source: RevenueBase Database · checked Sep 21, 2026
8	Telos Corporation	Indirect evidence	Ashburn, VA, United StatesHQ checked Sep 21, 2026	501-1,000	629 contacts →
	Indirect evidence “Telos Corporation (NASDAQ: TLS) empowers and protects the world’s most security-conscious organizations with efficient, adaptable, and secure solutions that safeguard people…” Source: RevenueBase Database · checked Sep 21, 2026
9	Vikingcloud	Partial evidence	Chicago, IL, United StatesHQ checked Sep 21, 2026	1,001-5,000	628 contacts →
	Partial evidence “VikingCloud delivers battle-tested cybersecurity and compliance solutions that simply work.” Source: RevenueBase Database · checked Sep 21, 2026
10	ACI Learning	Strong evidence	Colorado Springs, CO, United StatesHQ checked Sep 21, 2026	201-500	530 contacts →
	Strong evidence “ACI Learning trains the leaders in Audit, Cybersecurity, and Information Technology.” Source: RevenueBase Database · checked Sep 21, 2026
11	Aujas Cybersecurity	Partial evidence	Cupertino, CA, United StatesHQ checked Sep 21, 2026	1,001-5,000	473 contacts →
	Partial evidence “At Aujas Cybersecurity, we specialize in building and transforming cybersecurity postures to help businesses effectively mitigate risks.” Source: RevenueBase Database · checked Sep 21, 2026
12	Controlcase	Partial evidence	Fairfax, VA, United StatesHQ checked Sep 21, 2026	201-500	411 contacts →
	Partial evidence “ControlCase is committed to bringing peace of mind to the world’s IT compliance programs through our signature partnership approach, commitment to automation, and cost-effective…” Source: RevenueBase Database · checked Sep 21, 2026
13	IBN Technologies	Partial evidence	Miami, FL, United StatesHQ checked Sep 21, 2026	51-200	365 contacts →
	Partial evidence “Welcome to IBN Technologies, LLC, Your Trusted Partner in Cybersecurity, Cloud, and Finance Solutions With 26+ years of expertise, IBN Technologies leads in delivering integrated…” Source: RevenueBase Database · checked Sep 21, 2026
14	Security Risk Advisors	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 21, 2026	201-500	315 contacts →
	Partial evidence “We deliver cybersecurity consulting, 24x7 operations and SaaS to leading companies in the Financial Services, Healthcare, Pharmaceuticals, Technology and Retail industries.” Source: RevenueBase Database · checked Sep 21, 2026
15	Amsys Innovative Solutions	Partial evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	201-500	302 contacts →
	Partial evidence “AMSYS is a nationwide IT Services Provider headquartered in Houston, TX.” Source: RevenueBase Database · checked Sep 21, 2026
16	Prescient Security	Strong evidence	Nashville, TN, United StatesHQ checked Sep 21, 2026	201-500	272 contacts →
	Strong evidence “Prescient Security is a global cybersecurity and compliance firm delivering risk-based audits, advanced penetration testing, and end-to-end framework support.” Source: RevenueBase Database · checked Sep 21, 2026
17	Baxter Clewis Cybersecurity	Partial evidence	Cedar Hill, TX, United StatesHQ checked Sep 21, 2026	201-500	255 contacts →
	Partial evidence “Baxter Clewis Cybersecurity, we bring to the table a unique set of experiences that allow us to best serve your cybersecurity needs.” Source: RevenueBase Database · checked Sep 21, 2026
18	Thoropass	Partial evidence	New York, NY, United StatesHQ checked Sep 21, 2026	201-500	243 contacts →
	Partial evidence “Thoropass is the only end-to-end cybersecurity auditor.” Source: RevenueBase Database · checked Sep 21, 2026
19	Magna5	Strong evidence	Canonsburg, PA, United StatesHQ checked Sep 21, 2026	201-500	238 contacts →
	Strong evidence “Magna5 is a national managed IT and cybersecurity services provider supporting organizations that require always‑on availability, strong security, and regulatory compliance.” Source: RevenueBase Database · checked Sep 21, 2026
20	Epsilon Inc., An American Systems Company	Partial evidence	Weaverville, NC, United StatesHQ checked Sep 21, 2026	201-500	225 contacts →
	Partial evidence “Epsilon, an AMERICAN SYSTEMS company, began with a simple yet powerful mission: to make IT empower people-not frustrate them.” Source: RevenueBase Database · checked Sep 21, 2026
21	Loginsoft	Partial evidence	Chantilly, VA, United StatesHQ checked Sep 21, 2026	201-500	220 contacts →
	Partial evidence “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: RevenueBase Database · checked Sep 21, 2026
22	Sayers	Partial evidence	Vernon Hills, IL, United StatesHQ checked Sep 21, 2026	51-200	209 contacts →
	Partial evidence “At Sayers, we offer expert guidance to help organizations tackle cyber, cloud, and IT infrastructure challenges.” Source: RevenueBase Database · checked Sep 21, 2026
23	TCM Security	Partial evidence	Charlotte, NC, United StatesHQ checked Sep 21, 2026	n/a	206 contacts →
	Partial evidence “A veteran-owned cybersecurity company focused on penetration testing, security training, and compliance.” Source: RevenueBase Database · checked Sep 21, 2026
24	Mindpoint Group, A Quantum SKY Company	Partial evidence	Reston, VA, United StatesHQ checked Sep 21, 2026	1,001-5,000	204 contacts →
	Partial evidence “MindPoint Group, a Quantum Sky company, is a cybersecurity specialist trusted by U.S.” Source: RevenueBase Database · checked Sep 21, 2026
25	Tevora	Partial evidence	Irvine, CA, United StatesHQ checked Sep 21, 2026	201-500	199 contacts →
	Partial evidence “Founded in 2003, Tevora is a specialized management consultancy focused on cybersecurity, risk, and compliance services.” Source: RevenueBase Database · checked Sep 21, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: IT and cybersecurity audit services. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names IT and cybersecurity audit services.
Partial evidence: Its own public description names part of IT and cybersecurity audit services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name IT and cybersecurity audit services. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 3,505 IT and cybersecurity audit services based in the United States

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IT and cybersecurity audit services based in the United States at a glance

As of Sep 21, 2026

42.5%Verified-email coverage

12.2Average contacts per company

1-10Median size (employees)

3.1%Largest-city concentration · New York

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

2,094

11-50

1,054

51-200

268

201-500

501-1,000

1,001-5,000

5,001-10,000

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 3,505 companies.

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 IT and cybersecurity audit services, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search 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 Smart Search, 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 “IT and cybersecurity audit services”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names IT and cybersecurity audit services), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among IT and cybersecurity audit services, 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 its RevenueBase Smart Search 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, 18,143 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 21, 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.

IT and cybersecurity audit services by metro

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names IT and cybersecurity audit services, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many IT and cybersecurity audit services are there based in the United States?

RevenueBase identified 3,505 IT and cybersecurity audit services 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?

OPTIV, headquartered in Leawood, tops this list with the largest team on record.

Which city has the most IT and cybersecurity audit services?

New York leads with 108 headquartered companies, followed by Houston (71) and Atlanta (67).

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 18,143 verified decision-maker contacts tracked across these 3,505 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 21, 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 Smart Search, 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.