Company lists · Data refreshed September 2026

Top 25 Accounting firm cybersecurity companies based in the United States

Name: Accounting firm cybersecurity companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 27, 2026 1,855 companies tracked

RevenueBase identified 1,855 accounting firm cybersecurity companies headquartered in the United States as of September 2026 and tracks 23,666 professional contacts across them, including 10,546 with verified work emails. New York is the largest hub.

This list covers accounting firm cybersecurity companies 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 27, 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 27, 2026 86% judged on-target in blind review

1,855Companies

23,666Contacts tracked

10,546Verified emails

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The 25 largest accounting firm cybersecurity companies based in the United States

Ranked by team size

Top 25 of 1,855 accounting firm cybersecurity companies based in the United States, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to accounting firm cybersecurity companies: 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	Guidepoint Security	Partial evidence	Reston, VA, United StatesHQ checked Sep 27, 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 27, 2026
2	Coalfire	Partial evidence	Chicago, IL, United StatesHQ checked Sep 27, 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 27, 2026
3	Frank, Rimerman Co. LLP	Indirect evidence	Palo Alto, CA, United StatesHQ checked Sep 27, 2026	501-1,000	893 contacts →
	Indirect evidence “Established in 1949, our firm is unique for its pervasive passion and nimble delivery of over 75 years of experience.” Source: RevenueBase Database · checked Sep 27, 2026
4	Network Intelligence	Indirect evidence	Plano, TX, United StatesHQ checked Sep 27, 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 27, 2026
5	Pbmares, LLP	Partial evidence	Newport News, VA, United StatesHQ checked Sep 27, 2026	201-500	393 contacts →
	Partial evidence “PBMares is a Certified Public Accounting and consulting firm focused on serving the audit, tax, accounting, and consulting needs of companies and individuals.” Source: RevenueBase Database · checked Sep 27, 2026
6	Redw Advisors & Cpas	Indirect evidence	Albuquerque, NM, United StatesHQ checked Sep 27, 2026	201-500	392 contacts →
	Indirect evidence “Since 1953, REDW Advisors & CPAs has been fully committed to the success of our clients.” Source: RevenueBase Database · checked Sep 27, 2026
7	IBN Technologies	Partial evidence	Miami, FL, United StatesHQ checked Sep 27, 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 27, 2026
8	Clark Nuber PS	Partial evidence	Bellevue, WA, United StatesHQ checked Sep 27, 2026	201-500	347 contacts →
	Partial evidence “Clark Nuber is an award-winning Certified Public Accounting firm located in the Seattle Metro Area.” Source: RevenueBase Database · checked Sep 27, 2026
9	Richey MAY	Strong evidence	Englewood, CO, United StatesHQ checked Sep 27, 2026	201-500	318 contacts →
	Strong evidence “Richey May is a Top 50 accounting, advisory, and cybersecurity firm helping organizations navigate complexity, manage risk, and achieve sustainable growth.” Source: RevenueBase Database · checked Sep 27, 2026
10	Security Risk Advisors	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 27, 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 27, 2026
11	Larsonallen	Indirect evidence	Minneapolis, MN, United StatesHQ checked Sep 27, 2026	1,001-5,000	287 contacts →
	Indirect evidence “Effective January 2, 2012, LarsonAllen and Clifton Gunderson are now CliftonLarsonAllen.” Source: RevenueBase Database · checked Sep 27, 2026
12	Prescient Security	Partial evidence	Nashville, TN, United StatesHQ checked Sep 27, 2026	201-500	272 contacts →
	Partial 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 27, 2026
13	Baxter Clewis Cybersecurity	Partial evidence	Cedar Hill, TX, United StatesHQ checked Sep 27, 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 27, 2026
14	CNM LLP	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 27, 2026	51-200	237 contacts →
	Indirect evidence “CNM LLP is now part of CrossCountry Consulting.” Source: RevenueBase Database · checked Sep 27, 2026
15	Keiter Cpas	Indirect evidence	Glen Allen, VA, United StatesHQ checked Sep 27, 2026	51-200	220 contacts →
	Indirect evidence “You can depend on us to share our knowledge and experience to help you make sound financial decisions throughout the life cycle of your business.” Source: RevenueBase Database · checked Sep 27, 2026
16	CKH Group	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 27, 2026	51-200	219 contacts →
	Partial evidence “CKH Group is an Atlanta-headquarterd CPA firm offering powerful assurance, tax, accounting, and advisory services to individuals, small businesses, global enterprises, and…” Source: RevenueBase Database · checked Sep 27, 2026
17	Mindpoint Group, A Quantum SKY Company	Partial evidence	Reston, VA, United StatesHQ checked Sep 27, 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 27, 2026
18	Tevora	Partial evidence	Irvine, CA, United StatesHQ checked Sep 27, 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 27, 2026
19	Brockman, Coats, Gedelian & CO	Indirect evidence	Akron, OH, United StatesHQ checked Sep 27, 2026	51-200	184 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 27, 2026
20	Deepseas	Indirect evidence	Globally Distributed, United StatesHQ checked Sep 27, 2026	201-500	182 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 27, 2026
21	Ampcus Cyber	Indirect evidence	Chantilly, VA, United StatesHQ checked Sep 27, 2026	1,001-5,000	170 contacts →
	Indirect evidence “Trusted By 2,880+ World-Class Brands And Organizations Of All Sizes…!” Source: RevenueBase Database · checked Sep 27, 2026
22	Nuharbor	Partial evidence	Colchester, VT, United StatesHQ checked Sep 27, 2026	51-200	151 contacts →
	Partial evidence “nuHarbor is a U.S-based cybersecurity firm trusted by public sector and critical infrastructure organizations nationwide.” Source: RevenueBase Database · checked Sep 27, 2026
23	OSC Edge	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 27, 2026	51-200	150 contacts →
	Indirect evidence “From CND in the Cloud to CSfC with Enterprise Remote Capabilities, OSC Edge empowers organizations with solutions that prepare them for today and tomorrow.” Source: RevenueBase Database · checked Sep 27, 2026
24	Accorian	Indirect evidence	East Brunswick, NJ, United StatesHQ checked Sep 27, 2026	51-200	148 contacts →
	Indirect evidence “At Accorian, we don’t just advise on compliance, we operationalize it.” Source: RevenueBase Database · checked Sep 27, 2026
25	Larson & Company	Indirect evidence	Sandy, UT, United StatesHQ checked Sep 27, 2026	51-200	147 contacts →
	Indirect evidence “Since 1975, Larson & Company has served the insurance industry with personalized services tailored to a highly regulated industry.” Source: RevenueBase Database · checked Sep 27, 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: accounting firm cybersecurity companies. 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 accounting firm cybersecurity companies.
Partial evidence: Its own public description names part of accounting firm cybersecurity companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name accounting firm cybersecurity companies. 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 1,855 accounting firm cybersecurity companies based in the United States

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Accounting firm cybersecurity companies based in the United States at a glance

As of Sep 27, 2026

44.6%Verified-email coverage

12.8Average contacts per company

1-10Median size (employees)

2.8%Largest-city concentration · New York

Sep 27, 2026Page data refreshed

Companies by employee count

1-10

1,108

11-50

534

51-200

167

201-500

501-1,000

1,001-5,000

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 1,855 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 accounting firm cybersecurity companies, 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 “accounting firm cybersecurity companies”. 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 accounting firm cybersecurity companies), 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 accounting firm cybersecurity companies, 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, 10,546 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 27, 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.

Accounting firm cybersecurity companies 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 accounting firm cybersecurity companies, 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 accounting firm cybersecurity companies are there based in the United States?

RevenueBase identified 1,855 accounting firm cybersecurity companies 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?

Guidepoint Security, headquartered in Reston, tops this list with the largest team on record.

Which city has the most accounting firm cybersecurity companies?

New York leads with 52 headquartered companies, followed by Atlanta (43) and Houston (39).

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 10,546 verified decision-maker contacts tracked across these 1,855 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 27, 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.