Company lists · Data refreshed September 2026

Top 25 Data security consulting firms based in the United States

Name: Data security consulting firms based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 1, 2026 5,467 companies tracked

RevenueBase identified 5,467 data security consulting firms headquartered in the United States as of September 2026 and tracks 54,609 professional contacts across them, including 20,346 with verified work emails and 20,777 with mobile numbers. New York is the largest hub.

This list covers data security consulting 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 1, 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 RevenueBase Smart Search rating on every row Refreshed Sep 1, 2026 86% judged on-target in blind review

5,467Companies

54,609Contacts tracked

20,346Verified emails

20,777Mobile numbers

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The 25 largest data security consulting firms based in the United States

Ranked by team size

Top 25 of 5,467 data security consulting firms based in the United States, ranked by team size, largest first. Data refreshed Sep 1, 2026. RevenueBase Smart Search rates how each company's information relates to data security consulting firms: 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	Chantilly, VA, United States	1,001-5,000	2,206 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 1, 2026
2	Guidepoint Security	Partial evidence	Tampa, FL, United States	1,001-5,000	1,234 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 1, 2026
3	Coalfire	Indirect evidence	Chicago, IL, United States	1,001-5,000	960 contacts →
	Indirect 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 1, 2026
4	Vikingcloud	Indirect evidence	Chicago, IL, United States	1,001-5,000	618 contacts →
	Indirect evidence “VikingCloud delivers battle-tested cybersecurity and compliance solutions that simply work.” Source: RevenueBase Database · checked Sep 1, 2026
5	Solomonedwards	Indirect evidence	Wayne, PA, United States	1,001-5,000	566 contacts →
	Indirect evidence “For more than 25 years, SolomonEdwards has empowered organizations to tackle common and complex business challenges through strategic advisory, technical advocacy, and hands-on…” Source: RevenueBase Database · checked Sep 1, 2026
6	Securityhq	Partial evidence	New York, NY, United States	501-1,000	492 contacts →
	Partial evidence “SecurityHQ, a global cybersecurity company pioneering Security Performance Engineering for stronger operational performance and resilience.” Source: RevenueBase Database · checked Sep 1, 2026
7	Xcelerate Solutions	Indirect evidence	Mclean, VA, United States	1,001-5,000	445 contacts →
	Indirect evidence “At Xcelerate, safeguarding the nation isn’t just a mission-it’s our obsession.” Source: RevenueBase Database · checked Sep 1, 2026
8	Kudelski Security	Partial evidence	Irving, TX, United States	201-500	404 contacts →
	Partial evidence “Kudelski Security is a premier cybersecurity solutions provider, working with the most security-conscious organizations in Europe and across the United States.” Source: RevenueBase Database · checked Sep 1, 2026
9	Protegrity	Partial evidence	Stamford, CT, United States	201-500	353 contacts →
	Partial evidence “Protegrity protects the world's most sensitive data wherever it resides.” Source: RevenueBase Database · checked Sep 1, 2026
10	Intelligent Technical Solutions	Strong evidence	Olympia, WA, United States	201-500	313 contacts →
	Strong evidence “Intelligent Technical Solutions is your trusted business partner for all your Cybersecurity, Managed and Co-managed IT support, Risk & Compliance, Data Analytics, and Consulting…” Source: RevenueBase Database · checked Sep 1, 2026
11	K2 Integrity	Indirect evidence	Washington, DC, United States	201-500	313 contacts →
	Indirect evidence “K2 Integrity is a global risk management firm dedicated to helping organizations across both the public and private sectors protect their assets, reputation, and operations and…” Source: RevenueBase Database · checked Sep 1, 2026
12	Security Risk Advisors	Partial evidence	Philadelphia, PA, United States	201-500	311 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 1, 2026
13	Brickred Systems	Partial evidence	Redmond, WA, United States	501-1,000	269 contacts →
	Partial evidence “BrickRed Systems is Microsoft Gold certified partner also one among the leading Information Technology (IT) Consulting firms of the present generation.” Source: RevenueBase Database · checked Sep 1, 2026
14	Securitymetrics	Partial evidence	Orem, UT, United States	501-1,000	267 contacts →
	Partial evidence “We secure peace of mind for organizations that handle sensitive data by holding our tools, training, and support to a higher standard.” Source: RevenueBase Database · checked Sep 1, 2026
15	Prescient Security	Partial evidence	Nashville, TN, United States	201-500	266 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 1, 2026
16	Guidepost Solutions	Indirect evidence	Phoenix, AZ, United States	201-500	263 contacts →
	Indirect evidence “We stand at the forefront of leadership, insight, and guidance in a world marked by complexity and uncertainty.” Source: RevenueBase Database · checked Sep 1, 2026
17	Baxter Clewis Cybersecurity	Indirect evidence	Cedar Hill, TX, United States	201-500	251 contacts →
	Indirect 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 1, 2026
18	Falconwood, Incorporated	Partial evidence	North Charleston, SC, United States	201-500	239 contacts →
	Partial evidence “Falconwood is a veteran-owned, woman-owned business management and technology consulting firm headquartered in Arlington, Virginia.” Source: RevenueBase Database · checked Sep 1, 2026
19	Burwood Group	Indirect evidence	Lombard, IL, United States	201-500	223 contacts →
	Indirect evidence “The urgent need for technology to solve business problems more efficiently, decrease costs, and mitigate risk has increased.” Source: RevenueBase Database · checked Sep 1, 2026
20	Mindpoint Group, A Tyto Athene Company	Strong evidence	Reston, VA, United States	1,001-5,000	208 contacts →
	Strong evidence “When it comes to Information Security Consulting, we are the team the specialists turn to.” Source: RevenueBase Database · checked Sep 1, 2026
21	Tevora	Indirect evidence	Los Angeles, CA, United States	201-500	196 contacts →
	Indirect evidence “Founded in 2003, Tevora is a specialized management consultancy focused on cybersecurity, risk, and compliance services.” Source: RevenueBase Database · checked Sep 1, 2026
22	Deepseas	Indirect evidence	United States	201-500	185 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 1, 2026
23	Cyber Advisors	Partial evidence	Maple Grove, MN, United States	201-500	180 contacts →
	Partial evidence “Cyber Advisors is a nationwide leader in cyber security, providing a comprehensive range of Offensive, Defensive, and Risk Management services.” Source: RevenueBase Database · checked Sep 1, 2026
24	Ntirety	Indirect evidence	Austin, TX, United States	1,001-5,000	166 contacts →
	Indirect evidence “Ntirety is now part of 11:11 Systems!” Source: RevenueBase Database · checked Sep 1, 2026
25	Aegis Security & Investigations INC	Strong evidence	San Francisco, United States	201-500	164 contacts →
	Strong evidence “Checkout our latest articles at AEGIS Security & Investigations specializes in high end security, investigation, training and consulting solutions.” Source: RevenueBase Database · checked Sep 1, 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: data security consulting firms. 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 data security consulting firms.
Partial evidence: Its own public description names part of data security consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name data security consulting firms. 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 5,467 data security consulting firms based in the United States

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Data security consulting firms based in the United States at a glance

As of Sep 1, 2026

37.3%Verified-email coverage

38.0%Mobile-number coverage

10.0Average contacts per company

1-10Median size (employees)

3.0%Largest-city concentration · New York

Sep 1, 2026Page data refreshed

Companies by employee count

1-10

3,401

11-50

1,508

51-200

415

201-500

501-1,000

1,001-5,000

5,001-10,000

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 data security consulting firms, 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 “data security consulting firms”. 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 data security consulting firms), 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 data security consulting 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 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, 20,346 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 1, 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.

Data security consulting firms 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 data security consulting firms, 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 data security consulting firms are there based in the United States?

RevenueBase identified 5,467 data security consulting 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?

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

Which city has the most data security consulting firms?

New York leads with 165 headquartered companies, followed by Atlanta (112) and Washington (111).

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 20,346 verified decision-maker contacts tracked across these 5,467 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 1, 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.