Company lists · Data refreshed September 2026

Top 25 Security transformation consulting firms based in the United States

Name: Security transformation 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 29, 2026 5,391 companies tracked

RevenueBase identified 5,391 company matches for security transformation consulting firms associated with the United States as of September 2026 and tracks 69,669 professional contacts across them, including 25,933 with verified work emails. New York is the largest hub.

This list covers company matches for security transformation consulting firms 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

5,391Companies

69,669Contacts tracked

25,933Verified emails

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

Ranked by team size

Top 25 of 5,391 company matches for security transformation consulting firms 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Security Industry Specialists	Exact match	Culver City, CA, United StatesHQ recorded Sep 29, 2026	5,001-10,000	2,500 contacts →
	Exact match “The industry leader in security, Security Industry Specialists offers unique solutions to Fortune 500 companies, international events, and celebrity clients.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
2	OPTIV	Exact match	Leawood, KS, United StatesHQ recorded Sep 29, 2026	1,001-5,000	2,222 contacts →
	Exact match “Optiv is the cyber advisory and solutions leader, delivering strategic and technical expertise to nearly companies across every major industry.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
3	Forcepoint	Exact match	Austin, TX, United StatesHQ recorded Sep 29, 2026	1,001-5,000	1,636 contacts →
	Exact match “Forcepoint simplifies security for global businesses and governments.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
4	Trace3	Exact match	Irvine, CA, United StatesHQ recorded Sep 29, 2026	1,001-5,000	1,345 contacts →
	Exact match “Trace3 delivers business transformation.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
5	Thales Cybersecurity Products	Exact match	Austin, TX, United StatesHQ recorded Sep 29, 2026	1,001-5,000	1,252 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
6	Guidepoint Security	Exact match	Reston, VA, United StatesHQ recorded Sep 29, 2026	1,001-5,000	1,232 contacts →
	Exact match “GuidePoint Security provides trusted cybersecurity expertise, solutions, and services that help organizations make informed decisions and minimize risk.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
7	Brosnan Risk Consultants	Exact match	Pearl River, NY, United StatesHQ recorded Sep 29, 2026	5,001-10,000	1,050 contacts →
	Exact match “Brosnan Risk Consultants, Ltd.(BRC) is a security risk management firm focusing on physical security, emergency security, disaster preparedness and recovery and management…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
8	Trustwave, A Levelblue Company	Exact match	Chicago, IL, United StatesHQ recorded Sep 29, 2026	501-1,000	874 contacts →
	Exact match “Trustwave, a LevelBlue Company, is a globally recognized cybersecurity leader that reduces cyber risk and fortifies organizations against disruptive and damaging cyber threats.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
9	Cyderes	Exact match	Kansas City, MO, United StatesHQ recorded Sep 29, 2026	1,001-5,000	844 contacts →
	Exact match “Today’s threatscape is relentless.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
10	SDG Corporation	Exact match	Norwalk, CT, United StatesHQ recorded Sep 29, 2026	201-500	660 contacts →
	Exact match “With more than 30 years of experience partnering with global enterprises on complex business and IT initiatives, SDG is a trusted provider of advisory, transformation, and managed…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
11	Telos Corporation	Exact match	Ashburn, VA, United StatesHQ recorded Sep 29, 2026	501-1,000	629 contacts →
	Exact match “Telos Corporation (NASDAQ: TLS) empowers and protects the world’s most security-conscious organizations with efficient, adaptable, and secure solutions that safeguard people…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
12	Mentormate	Exact match	Minneapolis, MN, United StatesHQ recorded Sep 29, 2026	1,001-5,000	626 contacts →
	Exact match “MentorMate is now Tieto!” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
13	Planned Systems International	Exact match	Columbia, MD, United StatesHQ recorded Sep 29, 2026	1,001-5,000	611 contacts →
	Exact match “Since 1988, PSI teams have provided our government customers with innovative, cost effective solutions that solve today’s complex challenges, improve operational efficiencies, and…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
14	Ultraviolet Cyber	Exact match	Mclean, VA, United StatesHQ recorded Sep 29, 2026	501-1,000	523 contacts →
	Exact match “UltraViolet Cyber is the only security operations partner that unifies red, blue, and purple team capabilities into one integrated program, finding what's vulnerable, stopping…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
15	Core BTS	Exact match	Indianapolis, IN, United StatesHQ recorded Sep 29, 2026	501-1,000	523 contacts →
	Exact match “Core BTS, an NRI Group Company, is a full-service digital transformation consultancy that helps the world’s most impactful companies leverage today’s most powerful technologies to…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
16	Aujas Cybersecurity	Exact match	Cupertino, CA, United StatesHQ recorded Sep 29, 2026	1,001-5,000	473 contacts →
	Exact match “At Aujas Cybersecurity, we specialize in building and transforming cybersecurity postures to help businesses effectively mitigate risks.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
17	Xcelerate Solutions	Exact match	Mclean, VA, United StatesHQ recorded Sep 29, 2026	1,001-5,000	447 contacts →
	Exact match “At Xcelerate, safeguarding the nation isn’t just a mission-it’s our obsession.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
18	United Security, Inc. USI	Exact match	Red Bank, NJ, United StatesHQ recorded Sep 29, 2026	1,001-5,000	416 contacts →
	Exact match “United Security Inc.(USI) provides personalized security solutions enhanced by advanced technology and cyber services.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
19	Appgate	Exact match	Coral Gables, FL, United StatesHQ recorded Sep 29, 2026	501-1,000	381 contacts →
	Exact match “AppGate secures and protects an organization's most valuable assets with its high performance Zero Trust Network Access (ZTNA) solution and Cyber Advisory Services.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
20	Paladion An Atos Business	Exact match	Reston, VA, United StatesHQ recorded Sep 29, 2026	501-1,000	369 contacts →
	Exact match “As of April 2023, Paladion is part of Atos Group.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
21	IBN Technologies	Exact match	Miami, FL, United StatesHQ recorded Sep 29, 2026	51-200	365 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
22	Issquared, INC	Exact match	Westlake Village, CA, United StatesHQ recorded Sep 29, 2026	201-500	353 contacts →
	Exact match “About ISSQUARED, Inc: An emerging value provider across an array of digital transformation solutions to address on-demand security and governance needs.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
23	IANS	Exact match	Boston, MA, United StatesHQ recorded Sep 29, 2026	51-200	327 contacts →
	Exact match “For the security practitioner caught between rapidly evolving threats and demanding executives, IANS Research is a clear-headed resource for decision-making and articulating risk.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
24	Security Risk Advisors	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 29, 2026	201-500	315 contacts →
	Exact match “We deliver cybersecurity consulting, 24x7 operations and SaaS to leading companies in the Financial Services, Healthcare, Pharmaceuticals, Technology and Retail industries.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
25	Logically	Exact match	Dublin, OH, United StatesHQ recorded Sep 29, 2026	201-500	300 contacts →
	Exact match “Welcome to Logically.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “security transformation consulting firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 5,391 security transformation consulting firms based in the United States

See the full list, filter by size, metro and specialty, and access 25,933 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Security transformation consulting firms based in the United States at a glance

As of Sep 29, 2026

37.2%Verified-email coverage

12.9Average contacts per company

1-10Median size (employees)

3.1%Largest-city concentration · New York

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

3,242

11-50

1,524

51-200

457

201-500

100

501-1,000

1,001-5,000

5,001-10,000

10001+

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 5,391 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 “security transformation consulting firms” 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 25,933 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.

Security transformation consulting firms by metro

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 “security transformation consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many security transformation consulting firms are there based in the United States?

RevenueBase identified 5,391 company matches for security transformation consulting firms 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?

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

Which city has the most security transformation consulting firms?

New York leads with 168 company records, followed by Washington (116) and Atlanta (112).

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 25,933 professional contacts with verified work emails tracked across these 5,391 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.