Company lists · Data refreshed September 2026

Top 25 Cybersecurity advisory and data privacy consulting services based in the United States

Name: Cybersecurity advisory and data privacy consulting 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 24, 2026 11,875 companies tracked

RevenueBase identified 11,875 company matches for cybersecurity advisory and data privacy consulting services associated with the United States as of September 2026 and tracks 218,444 professional contacts across them, including 90,459 with verified work emails and 71,993 with mobile numbers. New York is the largest hub.

This list covers company matches for cybersecurity advisory and data privacy consulting 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 24, 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 24, 2026 How this list was built

11,875Companies

218,444Contacts tracked

90,459Verified emails

71,993Mobile numbers

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The 25 largest cybersecurity advisory and data privacy consulting services based in the United States

Ranked by team size

Top 25 of 11,875 company matches for cybersecurity advisory and data privacy consulting services based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 24, 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	Fortinet	Exact match	Sunnyvale, CA, United StatesHQ recorded Sep 24, 2026	10001+	14,289 contacts →
	Exact match “Fortinet makes possible a digital world that we can always trust through its mission to protect people, devices, and data everywhere.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
2	Guidehouse	Exact match	Mclean, VA, United StatesHQ recorded Sep 24, 2026	10001+	12,815 contacts →
	Exact match “Guidehouse is a global AI-led professional services firm delivering advisory, technology, and managed services to the commercial and government sectors.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
3	Symantec	Exact match	San Jose, CA, United StatesHQ recorded Sep 24, 2026	10001+	11,169 contacts →
	Exact match “Your backstage pass to the most epic cybersecurity solutions on the market for Endpoint, Network, Data and Cloud security.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
4	KROLL	Exact match	New York, NY, United StatesHQ recorded Sep 24, 2026	5,001-10,000	6,287 contacts →
	Exact match “As the leading independent provider of risk and financial advisory solutions, Kroll leverages our unique insights, data and technology to help clients stay ahead of complex…” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
5	Trellix	Exact match	Plano, TX, United StatesHQ recorded Sep 24, 2026	1,001-5,000	3,447 contacts →
	Exact match “Trellix is a global cybersecurity company delivering intelligence-led cyber resilience for security-conscious organizations at any stage of their journey.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
6	Withum	Exact match	Princeton, NJ, United StatesHQ recorded Sep 24, 2026	1,001-5,000	3,326 contacts →
	Exact match “Withum is a forward-thinking, technology-driven advisory and accounting firm, helping clients to Be in a Position of Strength in today’s modern business landscape.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
7	Quest Software	Exact match	Austin, TX, United StatesHQ recorded Sep 24, 2026	1,001-5,000	3,206 contacts →
	Exact match “At Quest Software, we help organizations build modern, trusted foundations for AI.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
8	OPTIV	Exact match	Leawood, KS, United StatesHQ recorded Sep 24, 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 24, 2026 · View company records in RevenueBase
9	Barracuda	Exact match	Campbell, CA, United StatesHQ recorded Sep 24, 2026	1,001-5,000	2,157 contacts →
	Exact match “Barracuda is a leading global cybersecurity company providing complete protection against complex threats for all size business.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
10	Fortra	Exact match	Eden Prairie, MN, United StatesHQ recorded Sep 24, 2026	1,001-5,000	1,648 contacts →
	Exact match “Fortra delivers AI-amplified cybersecurity solutions that help organizations use and protect data with confidence.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
11	Grazitti Interactive	Exact match	Mountain View, CA, United StatesHQ recorded Sep 24, 2026	1,001-5,000	1,506 contacts →
	Exact match “Grazitti Interactive is a digital innovation leader with offices in India, USA, Australia, and Singapore.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
12	Trace3	Exact match	Irvine, CA, United StatesHQ recorded Sep 24, 2026	1,001-5,000	1,345 contacts →
	Exact match “Trace3 delivers business transformation.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
13	Thales Cybersecurity Products	Exact match	Austin, TX, United StatesHQ recorded Sep 24, 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 24, 2026 · View company records in RevenueBase
14	Guidepoint Security	Exact match	Reston, VA, United StatesHQ recorded Sep 24, 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 24, 2026 · View company records in RevenueBase
15	Imperva	Exact match	Austin, TX, United StatesHQ recorded Sep 24, 2026	10001+	1,217 contacts →
	Exact match “On Dec.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
16	Centric Consulting	Exact match	Dayton, OH, United StatesHQ recorded Sep 24, 2026	1,001-5,000	1,113 contacts →
	Exact match “Committed to delivering tailored solutions and unmatched experiences, Centric Consulting is an international business and technology consulting firm that combines the benefits of…” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
17	PPC	Exact match	Trevose, PA, United StatesHQ recorded Sep 24, 2026	201-500	979 contacts →
	Exact match “PPC is now part of DSA” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
18	Coalfire	Exact match	Chicago, IL, United StatesHQ recorded Sep 24, 2026	1,001-5,000	947 contacts →
	Exact match “Coalfire is the premier Cybersecurity and Compliance Services leader for the tech, healthcare, and finance industries.(This page is maintained by Marketing.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
19	Zerofox	Exact match	Baltimore, MD, United StatesHQ recorded Sep 24, 2026	501-1,000	904 contacts →
	Exact match “ZeroFox is the solution to discover, validate, and disrupt external cyber threats before they harm revenue or reputation.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
20	Frank, Rimerman Co. LLP	Exact match	Palo Alto, CA, United StatesHQ recorded Sep 24, 2026	501-1,000	893 contacts →
	Exact match “Established in 1949, our firm is unique for its pervasive passion and nimble delivery of over 75 years of experience.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
21	Trustwave, A Levelblue Company	Exact match	Chicago, IL, United StatesHQ recorded Sep 24, 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 24, 2026 · View company records in RevenueBase
22	Cyderes	Exact match	Kansas City, MO, United StatesHQ recorded Sep 24, 2026	1,001-5,000	844 contacts →
	Exact match “Today’s threatscape is relentless.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
23	Application Specialist Kompany ASK	Exact match	Lansing, MI, United StatesHQ recorded Sep 24, 2026	n/a	785 contacts →
	Exact match “ASK is now Convergence Networks!” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
24	Nortonlifelock	Exact match	Tempe, AZ, United StatesHQ recorded Sep 24, 2026	n/a	740 contacts →
	Exact match “NortonLifeLock and Avast merged in 2022 and are now Gen™ (NASDAQ: GEN)- a global company dedicated to powering Digital Freedom through its trusted Cyber Safety brands.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
25	IT Solutions	Exact match	Fort Washington, PA, United StatesHQ recorded Sep 24, 2026	501-1,000	683 contacts →
	Exact match “With 30 years of experience as a trusted managed services provider, we're your dedicated partner in navigating the complex world of technology, so you can focus on growing your…” Recorded in the RevenueBase company graph · Sep 24, 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 “cybersecurity advisory and data privacy consulting services”. 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 11,875 cybersecurity advisory and data privacy consulting services based in the United States

See the full list, filter by size, metro and specialty, and access 90,459 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Cybersecurity advisory and data privacy consulting services based in the United States at a glance

As of Sep 24, 2026

41.4%Verified-email coverage

33.0%Mobile-number coverage

18.4Average contacts per company

1-10Median size (employees)

3.7%Largest-city concentration · New York

Sep 24, 2026Page data refreshed

Companies by employee count

1-10

7,124

11-50

3,369

51-200

1,017

201-500

202

501-1,000

1,001-5,000

5,001-10,000

10001+

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 26.0d

67,3930–30

20,58331–60

1,40161–90

9990–180

983180+

Company record updated

Median 83.0d

00–30

57,88631–60

98,87961–90

48,99490–180

12,685180+

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 “cybersecurity advisory and data privacy consulting 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 90,459 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 24, 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.

Cybersecurity advisory and data privacy consulting services 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 “cybersecurity advisory and data privacy consulting services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many cybersecurity advisory and data privacy consulting services are there based in the United States?

RevenueBase identified 11,875 company matches for cybersecurity advisory and data privacy consulting 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?

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

Which city has the most cybersecurity advisory and data privacy consulting services?

New York leads with 440 company records, followed by Washington (267) and Houston (211).

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 90,459 professional contacts with verified work emails tracked across these 11,875 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 24, 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.