Company lists · Data refreshed October 2026

Top 25 Information security consultancies based in the United States

RevenueBase identified 4,655 company matches for information security consultancies associated with the United States as of October 2026 and tracks 42,307 professional contacts across them, including 16,550 with verified work emails. New York is the largest hub.

This list covers company matches for information security consultancies 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 October 1, 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 Oct 1, 2026 How this list was built
4,655Companies
42,307Contacts tracked
16,550Verified emails
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The 25 largest information security consultancies based in the United States

Ranked by team size
Top 25 of 4,655 company matches for information security consultancies based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 1, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchLeawood, KS, United StatesHQ recorded Oct 1, 20261,001-5,0002,222 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 · Oct 1, 2026 · View company records in RevenueBase
2Exact matchReston, VA, United StatesHQ recorded Oct 1, 20261,001-5,0001,232 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 · Oct 1, 2026 · View company records in RevenueBase
3Exact matchAshburn, VA, United StatesHQ recorded Oct 1, 2026501-1,000629 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 · Oct 1, 2026 · View company records in RevenueBase
4Exact matchChicago, IL, United StatesHQ recorded Oct 1, 20261,001-5,000628 contacts →

Exact match

“VikingCloud delivers battle-tested cybersecurity and compliance solutions that simply work.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
5Exact matchCupertino, CA, United StatesHQ recorded Oct 1, 20261,001-5,000473 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 · Oct 1, 2026 · View company records in RevenueBase
6Exact matchMclean, VA, United StatesHQ recorded Oct 1, 20261,001-5,000447 contacts →

Exact match

“At Xcelerate, safeguarding the nation isn’t just a mission-it’s our obsession.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
7Exact matchBoston, MA, United StatesHQ recorded Oct 1, 202651-200327 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 · Oct 1, 2026 · View company records in RevenueBase
8Exact matchLas Vegas, NV, United StatesHQ recorded Oct 1, 2026201-500317 contacts →

Exact match

“Intelligent Technical Solutions is your trusted business partner for all your Cybersecurity, Managed and Co-managed IT support, Risk & Compliance, Data Analytics, and Consulting…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
9Exact matchPhiladelphia, PA, United StatesHQ recorded Oct 1, 2026201-500315 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 · Oct 1, 2026 · View company records in RevenueBase
10Exact matchNashville, TN, United StatesHQ recorded Oct 1, 2026201-500272 contacts →

Exact match

“Prescient Security is a global cybersecurity and compliance firm delivering risk-based audits, advanced penetration testing, and end-to-end framework support.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
11Exact matchNew York, NY, United StatesHQ recorded Oct 1, 2026201-500268 contacts →

Exact match

“We stand at the forefront of leadership, insight, and guidance in a world marked by complexity and uncertainty.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
12Exact matchCedar Hill, TX, United StatesHQ recorded Oct 1, 2026201-500255 contacts →

Exact match

“Baxter Clewis Cybersecurity, we bring to the table a unique set of experiences that allow us to best serve your cybersecurity needs.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
13Exact matchTampa, FL, United StatesHQ recorded Oct 1, 202651-200236 contacts →

Exact match

“NTG is where excellence meets innovation.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
14Exact matchBellevue, NE, United StatesHQ recorded Oct 1, 202651-200234 contacts →

Exact match

“SES is a cutting edge provider of IT consulting services.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
15Exact matchOak Brook, IL, United StatesHQ recorded Oct 1, 2026201-500223 contacts →

Exact match

“The urgent need for technology to solve business problems more efficiently, decrease costs, and mitigate risk has increased.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
16Exact matchVernon Hills, IL, United StatesHQ recorded Oct 1, 202651-200209 contacts →

Exact match

“At Sayers, we offer expert guidance to help organizations tackle cyber, cloud, and IT infrastructure challenges.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
17Exact matchReston, VA, United StatesHQ recorded Oct 1, 20261,001-5,000204 contacts →

Exact match

“MindPoint Group, a Quantum Sky company, is a cybersecurity specialist trusted by U.S.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
18Exact matchSalt Lake City, UT, United StatesHQ recorded Oct 1, 2026201-500202 contacts →

Exact match

“Stone Security has been driving the implementation of network-based surveillance, access control and intrusion systems for over 15 years.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
19Exact matchIrvine, CA, United StatesHQ recorded Oct 1, 2026201-500199 contacts →

Exact match

“Founded in 2003, Tevora is a specialized management consultancy focused on cybersecurity, risk, and compliance services.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
20Exact matchGlobally Distributed, United StatesHQ recorded Oct 1, 2026201-500182 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
21Exact matchMaple Grove, MN, United StatesHQ recorded Oct 1, 2026201-500176 contacts →

Exact match

“Cyber Advisors is a nationwide leader in cyber security, providing a comprehensive range of Offensive, Defensive, and Risk Management services.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
22Exact matchSan Jose, CA, United StatesHQ recorded Oct 1, 202651-200172 contacts →

Exact match

“Catalyst is a digital consulting firm headquartered in Silicon Valley, with operations in over 15 countries across EMEA.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
23Exact matchChantilly, VA, United StatesHQ recorded Oct 1, 20261,001-5,000170 contacts →

Exact match

“Trusted By 2,880+ World-Class Brands And Organizations Of All Sizes…!”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
24Exact matchWilmington, DE, United StatesHQ recorded Oct 1, 202651-200168 contacts →

Exact match

“Bridgesoft is a leading provider of technology, consulting and information security management solutions.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
25Exact matchAustin, TX, United StatesHQ recorded Oct 1, 20261,001-5,000167 contacts →

Exact match

“11:11 Systems is a managed infrastructure solutions provider that empowers customers to modernize, protect, and manage mission-critical applications and data, leveraging 11:11’s…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase

Showing 25 of 4,655 information security consultancies based in the United States

See the full list, filter by size, metro and specialty, and access 16,550 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Information security consultancies based in the United States at a glance

As of Oct 1, 2026
39.1%Verified-email coverage
9.1Average contacts per company
1-10Median size (employees)
3.1%Largest-city concentration · New York
Oct 1, 2026Page data refreshed

Companies by employee count

1-10
2,957
11-50
1,257
51-200
335
201-500
63
501-1,000
8
1,001-5,000
19
5,001-10,000
4
10001+
1

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 4,655 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 “information security consultancies” 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 16,550 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 October 1, 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.

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

How many information security consultancies are there based in the United States?

RevenueBase identified 4,655 company matches for information security consultancies associated with the United States as of October 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?

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

Which city has the most information security consultancies?

New York leads with 142 company records, followed by Houston (93) and Atlanta (90).

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 16,550 professional contacts with verified work emails tracked across these 4,655 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 October 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 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.