Company lists · Data refreshed September 2026

Top 25 Cyber consultancy services based in the United States

Name: Cyber consultancy 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 21, 2026 7,805 companies tracked

RevenueBase identified 7,805 cyber consultancy services headquartered in the United States as of September 2026 and tracks 82,071 professional contacts across them, including 31,872 with verified work emails. New York is the largest hub.

This list covers cyber consultancy services 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 21, 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 21, 2026 86% judged on-target in blind review

7,805Companies

82,071Contacts tracked

31,872Verified emails

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The 25 largest cyber consultancy services based in the United States

Ranked by team size

Top 25 of 7,805 cyber consultancy services based in the United States, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to cyber consultancy services: 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	Partial evidence	Leawood, KS, United StatesHQ checked Sep 21, 2026	1,001-5,000	2,222 contacts →
	Partial 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 21, 2026
2	Thales Cybersecurity Products	Indirect evidence	Austin, TX, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,252 contacts →
	Indirect evidence “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.” Source: RevenueBase Database · checked Sep 21, 2026
3	Guidepoint Security	Indirect evidence	Reston, VA, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,232 contacts →
	Indirect evidence “GuidePoint Security provides trusted cybersecurity expertise, solutions, and services that help organizations make informed decisions and minimize risk.” Source: RevenueBase Database · checked Sep 21, 2026
4	PPC	Indirect evidence	Trevose, PA, United StatesHQ checked Sep 21, 2026	201-500	979 contacts →
	Indirect evidence “PPC is now part of DSA” Source: RevenueBase Database · checked Sep 21, 2026
5	Coalfire	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 21, 2026	1,001-5,000	947 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 21, 2026
6	Trustwave, A Levelblue Company	Partial evidence	Chicago, IL, United StatesHQ checked Sep 21, 2026	501-1,000	874 contacts →
	Partial evidence “Trustwave, a LevelBlue Company, is a globally recognized cybersecurity leader that reduces cyber risk and fortifies organizations against disruptive and damaging cyber threats.” Source: RevenueBase Database · checked Sep 21, 2026
7	Cyderes	Indirect evidence	Kansas City, MO, United StatesHQ checked Sep 21, 2026	1,001-5,000	844 contacts →
	Indirect evidence “Today’s threatscape is relentless.” Source: RevenueBase Database · checked Sep 21, 2026
8	Network Intelligence	Indirect evidence	Plano, TX, United StatesHQ checked Sep 21, 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 21, 2026
9	Telos Corporation	Indirect evidence	Ashburn, VA, United StatesHQ checked Sep 21, 2026	501-1,000	629 contacts →
	Indirect evidence “Telos Corporation (NASDAQ: TLS) empowers and protects the world’s most security-conscious organizations with efficient, adaptable, and secure solutions that safeguard people…” Source: RevenueBase Database · checked Sep 21, 2026
10	Vikingcloud	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 21, 2026	1,001-5,000	628 contacts →
	Indirect evidence “VikingCloud delivers battle-tested cybersecurity and compliance solutions that simply work.” Source: RevenueBase Database · checked Sep 21, 2026
11	Ultraviolet Cyber	Partial evidence	Mclean, VA, United StatesHQ checked Sep 21, 2026	501-1,000	523 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 21, 2026
12	Aujas Cybersecurity	Indirect evidence	Cupertino, CA, United StatesHQ checked Sep 21, 2026	1,001-5,000	473 contacts →
	Indirect evidence “At Aujas Cybersecurity, we specialize in building and transforming cybersecurity postures to help businesses effectively mitigate risks.” Source: RevenueBase Database · checked Sep 21, 2026
13	ARETE	Partial evidence	Boca Raton, FL, United StatesHQ checked Sep 21, 2026	201-500	462 contacts →
	Partial evidence “Arete helps organizations stay ahead of cyber threats with standardized, intelligence-led detection, response, resolution, and resilience capabilities.” Source: RevenueBase Database · checked Sep 21, 2026
14	Knowledge Services	Indirect evidence	Indianapolis, IN, United StatesHQ checked Sep 21, 2026	1,001-5,000	461 contacts →
	Indirect evidence “Knowledge Services is a certified woman-owned business enterprise (WBE) that is reshaping how public and private organizations work together to better serve our nation.” Source: RevenueBase Database · checked Sep 21, 2026
15	Meriplex	Indirect evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	501-1,000	450 contacts →
	Indirect evidence “If you’re a midsize enterprise with employees (i.e, an “MSE” according to Gartner), we know what you’re going through.” Source: RevenueBase Database · checked Sep 21, 2026
16	Palo Alto Networks Unit 42	Partial evidence	Santa Clara, CA, United StatesHQ checked Sep 21, 2026	5,001-10,000	441 contacts →
	Partial evidence “Palo Alto Networks Unit 42 brings together world-renowned threat researchers with an elite team of incident responders and security consultants to create an intelligence-driven…” Source: RevenueBase Database · checked Sep 21, 2026
17	Edgewater Federal Solutions, INC	Indirect evidence	Frederick, MD, United StatesHQ checked Sep 21, 2026	501-1,000	410 contacts →
	Indirect evidence “Edgewater Federal Solutions was founded in 2002 with the mission of being the best IT consulting company possible for our government clients, our contracting partners and our…” Source: RevenueBase Database · checked Sep 21, 2026
18	SDI Presence	Partial evidence	Chicago, IL, United StatesHQ checked Sep 21, 2026	201-500	391 contacts →
	Partial evidence “SDI Presence LLC is an IT consultancy and managed services provider (MSP) that leverages its strong team presence to advance our clients to a secure digital enterprise.” Source: RevenueBase Database · checked Sep 21, 2026
19	Novacoast	Indirect evidence	Wichita, KS, United StatesHQ checked Sep 21, 2026	201-500	369 contacts →
	Indirect evidence “Novacoast is an international cybersecurity company specializing in IT services and software development.” Source: RevenueBase Database · checked Sep 21, 2026
20	Paladion An Atos Business	Indirect evidence	Reston, VA, United StatesHQ checked Sep 21, 2026	501-1,000	369 contacts →
	Indirect evidence “As of April 2023, Paladion is part of Atos Group.” Source: RevenueBase Database · checked Sep 21, 2026
21	Nexustek	Indirect evidence	Greenwood Village, CO, United StatesHQ checked Sep 21, 2026	201-500	366 contacts →
	Indirect evidence “Trusted by thousands of businesses, we specialize in providing IT services that include hybrid cloud hosting, cybersecurity, data and AI, managed IT services, and IT consulting.” Source: RevenueBase Database · checked Sep 21, 2026
22	IBN Technologies	Indirect evidence	Miami, FL, United StatesHQ checked Sep 21, 2026	51-200	365 contacts →
	Indirect 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 21, 2026
23	US Claro	Indirect evidence	Miramar, FL, United StatesHQ checked Sep 21, 2026	201-500	345 contacts →
	Indirect evidence “Claro, a subsidiary of América Móvil, is a global integrator with over 20 years of experience and your partner for managing secure-by-design cybersecurity and information…” Source: RevenueBase Database · checked Sep 21, 2026
24	CTI	Indirect evidence	Timonium, MD, United StatesHQ checked Sep 21, 2026	n/a	323 contacts →
	Indirect evidence “Continental Technologies Inc (CTI) configures, distributes, designs and maintains technology solutions for customers around the globe and remains both privately-held and locally…” Source: RevenueBase Database · checked Sep 21, 2026
25	Intelligent Technical Solutions	Indirect evidence	Las Vegas, NV, United StatesHQ checked Sep 21, 2026	201-500	317 contacts →
	Indirect 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 21, 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: cyber consultancy services. 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 cyber consultancy services.
Partial evidence: Its own public description names part of cyber consultancy services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name cyber consultancy services. 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 7,805 cyber consultancy services based in the United States

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Cyber consultancy services based in the United States at a glance

As of Sep 21, 2026

38.8%Verified-email coverage

10.5Average contacts per company

1-10Median size (employees)

2.9%Largest-city concentration · New York

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

4,859

11-50

2,203

51-200

555

201-500

104

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 7,805 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 cyber consultancy services, 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 “cyber consultancy services”. 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 cyber consultancy services), 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 cyber consultancy services, 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, 31,872 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 21, 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.

Cyber consultancy services 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 cyber consultancy services, 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 cyber consultancy services are there based in the United States?

RevenueBase identified 7,805 cyber consultancy services 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 Leawood, tops this list with the largest team on record.

Which city has the most cyber consultancy services?

New York leads with 223 headquartered companies, followed by Houston (146) and Atlanta (135).

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 31,872 verified decision-maker contacts tracked across these 7,805 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 21, 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.