Company lists · Data refreshed September 2026

Top 25 Cyber consultancies based in the United States

Name: Cyber consultancies 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 14,778 companies tracked

RevenueBase identified 14,778 cyber consultancies headquartered in the United States as of September 2026 and tracks 229,610 professional contacts across them, including 85,171 with verified work emails and 78,187 with mobile numbers. New York is the largest hub.

This list covers cyber consultancies 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 24, 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 24, 2026 86% judged on-target in blind review

14,778Companies

229,610Contacts tracked

85,171Verified emails

78,187Mobile numbers

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest cyber consultancies based in the United States

Ranked by team size

Top 25 of 14,778 cyber consultancies based in the United States, ranked by team size, largest first. Data refreshed Sep 24, 2026. RevenueBase Smart Search rates how each company's information relates to cyber consultancies: 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	Fortinet	Indirect evidence	Sunnyvale, CA, United StatesHQ checked Sep 24, 2026	10001+	14,289 contacts →
	Indirect evidence “Fortinet makes possible a digital world that we can always trust through its mission to protect people, devices, and data everywhere.” Source: RevenueBase Database · checked Sep 24, 2026
2	Symantec	Indirect evidence	San Jose, CA, United StatesHQ checked Sep 24, 2026	10001+	11,169 contacts →
	Indirect evidence “Your backstage pass to the most epic cybersecurity solutions on the market for Endpoint, Network, Data and Cloud security.” Source: RevenueBase Database · checked Sep 24, 2026
3	Comcast Business	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 24, 2026	10001+	8,242 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 24, 2026
4	Bugcrowd	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 24, 2026	n/a	3,649 contacts →
	Indirect evidence “We are a crowdsourced security company that safeguards organizations' assets from sophisticated threat actors before they can strike-by uniting our customers with trusted hackers…” Source: RevenueBase Database · checked Sep 24, 2026
5	Trellix	Partial evidence	Plano, TX, United StatesHQ checked Sep 24, 2026	1,001-5,000	3,447 contacts →
	Partial evidence “Trellix is a global cybersecurity company delivering intelligence-led cyber resilience for security-conscious organizations at any stage of their journey.” Source: RevenueBase Database · checked Sep 24, 2026
6	Sailpoint	Indirect evidence	Austin, TX, United StatesHQ checked Sep 24, 2026	1,001-5,000	2,886 contacts →
	Indirect evidence “SailPoint equips the modern enterprise to seamlessly manage and secure access to applications and data through the lens of identity – at speed and scale.” Source: RevenueBase Database · checked Sep 24, 2026
7	OPTIV	Partial evidence	Leawood, KS, United StatesHQ checked Sep 24, 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 24, 2026
8	Thrive	Indirect evidence	Foxborough, MA, United StatesHQ checked Sep 24, 2026	1,001-5,000	1,432 contacts →
	Indirect evidence “Thrive is a NextGen 3.0 global technology outsourcing provider that empowers small and mid-market organizations to transform their technology into a strategic advantage.” Source: RevenueBase Database · checked Sep 24, 2026
9	Thales Cybersecurity Products	Indirect evidence	Austin, TX, United StatesHQ checked Sep 24, 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 24, 2026
10	Guidepoint Security	Indirect evidence	Reston, VA, United StatesHQ checked Sep 24, 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 24, 2026
11	Imperva	Indirect evidence	Austin, TX, United StatesHQ checked Sep 24, 2026	10001+	1,217 contacts →
	Indirect evidence “On Dec.” Source: RevenueBase Database · checked Sep 24, 2026
12	Centric Consulting	Indirect evidence	Dayton, OH, United StatesHQ checked Sep 24, 2026	1,001-5,000	1,113 contacts →
	Indirect evidence “Committed to delivering tailored solutions and unmatched experiences, Centric Consulting is an international business and technology consulting firm that combines the benefits of…” Source: RevenueBase Database · checked Sep 24, 2026
13	Synoptek	Indirect evidence	Costa Mesa, CA, United StatesHQ checked Sep 24, 2026	1,001-5,000	1,037 contacts →
	Indirect evidence “Synoptek is a leading global managed services provider and technology consulting firm that delivers transformative business results.” Source: RevenueBase Database · checked Sep 24, 2026
14	GDT	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 24, 2026	501-1,000	1,032 contacts →
	Indirect evidence “As an award-winning, global IT solutions provider, we are changing the nature of transformation.” Source: RevenueBase Database · checked Sep 24, 2026
15	PPC	Indirect evidence	Trevose, PA, United StatesHQ checked Sep 24, 2026	201-500	979 contacts →
	Indirect evidence “PPC is now part of DSA” Source: RevenueBase Database · checked Sep 24, 2026
16	Coalfire	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 24, 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 24, 2026
17	The MIL Corporation	Partial evidence	Bowie, MD, United StatesHQ checked Sep 24, 2026	501-1,000	941 contacts →
	Partial evidence “Established in 1980, MIL provides innovative cyber, engineering, financial, and information technology services to the federal government.” Source: RevenueBase Database · checked Sep 24, 2026
18	Zerofox	Partial evidence	Baltimore, MD, United StatesHQ checked Sep 24, 2026	501-1,000	904 contacts →
	Partial evidence “ZeroFox is the solution to discover, validate, and disrupt external cyber threats before they harm revenue or reputation.” Source: RevenueBase Database · checked Sep 24, 2026
19	Trustwave, A Levelblue Company	Partial evidence	Chicago, IL, United StatesHQ checked Sep 24, 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 24, 2026
20	Quantum SKY	Partial evidence	Reston, VA, United StatesHQ checked Sep 24, 2026	1,001-5,000	872 contacts →
	Partial evidence “Quantum Sky is a mission technology company that builds secure AI, cyber, cloud, and quantum capabilities for defense, intelligence, and federal civilian agencies.” Source: RevenueBase Database · checked Sep 24, 2026
21	Cyderes	Indirect evidence	Kansas City, MO, United StatesHQ checked Sep 24, 2026	1,001-5,000	844 contacts →
	Indirect evidence “Today’s threatscape is relentless.” Source: RevenueBase Database · checked Sep 24, 2026
22	SSE	Indirect evidence	St Louis, MO, United StatesHQ checked Sep 24, 2026	201-500	837 contacts →
	Indirect evidence “Systems Service Enterprises, Inc.(SSE) is a leader in Information Technology, Cybersecurity Compliance, and Training and Technical Data solutions for small-medium sized businesses…” Source: RevenueBase Database · checked Sep 24, 2026
23	Buchanan Technologies	Indirect evidence	Grapevine, TX, United StatesHQ checked Sep 24, 2026	501-1,000	818 contacts →
	Indirect evidence “As a leading IT consulting and outsourcing services firm, Buchanan Technologies helps organizations across North America turn their business technology into a powerful competitive…” Source: RevenueBase Database · checked Sep 24, 2026
24	Cogent Infotech	Indirect evidence	Pittsburgh, PA, United StatesHQ checked Sep 24, 2026	501-1,000	786 contacts →
	Indirect evidence “Cogent Infotech is an award-winning global IT consulting firm based in Pittsburgh that provides innovative technology services to Fortune 500 companies, government agencies, and…” Source: RevenueBase Database · checked Sep 24, 2026
25	Application Specialist Kompany ASK	Indirect evidence	Lansing, MI, United StatesHQ checked Sep 24, 2026	n/a	785 contacts →
	Indirect evidence “ASK is now Convergence Networks!” Source: RevenueBase Database · checked Sep 24, 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 consultancies. 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 consultancies.
Partial evidence: Its own public description names part of cyber consultancies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name cyber consultancies. 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 14,778 cyber consultancies based in the United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 85,171 reachable decision-makers.

Free signup · no credit card

View the full list →

Cyber consultancies based in the United States at a glance

As of Sep 24, 2026

37.1%Verified-email coverage

34.1%Mobile-number coverage

15.5Average contacts per company

1-10Median size (employees)

3.2%Largest-city concentration · New York

Sep 24, 2026Page data refreshed

Companies by employee count

1-10

8,938

11-50

4,229

51-200

1,163

201-500

255

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

63,5750–30

19,47131–60

1,29261–90

8990–180

744180+

Company record updated

Median 86.0d

00–30

58,67831–60

105,10761–90

53,15190–180

12,674180+

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 consultancies, 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 consultancies”. 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 consultancies), 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 consultancies, 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, 85,171 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 24, 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 consultancies 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 consultancies, 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 consultancies are there based in the United States?

RevenueBase identified 14,778 cyber consultancies 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?

Fortinet, headquartered in Sunnyvale, tops this list with the largest team on record.

Which city has the most cyber consultancies?

New York leads with 480 headquartered companies, followed by Washington (256) and Houston (252).

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 85,171 verified decision-maker contacts tracked across these 14,778 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 24, 2026.

Ready to reach these companies? Verified emails and direct dials for all 14,778 cyber consultancies based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

Cyber consultancies by geography

Browse the directory

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.