Company lists · Data refreshed September 2026

Top 25 Healthcare cybersecurity firms based in the United States

Name: Healthcare cybersecurity 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 28, 2026 1,890 companies tracked

RevenueBase identified 1,890 healthcare cybersecurity firms headquartered in the United States as of September 2026 and tracks 24,883 professional contacts across them, including 10,853 with verified work emails. New York is the largest hub.

This list covers healthcare cybersecurity firms 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 28, 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 28, 2026 86% judged on-target in blind review

1,890Companies

24,883Contacts tracked

10,853Verified emails

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The 25 largest healthcare cybersecurity firms based in the United States

Ranked by team size

Top 25 of 1,890 healthcare cybersecurity firms based in the United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to healthcare cybersecurity firms: 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	Thales Cybersecurity Products	Partial evidence	Austin, TX, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,252 contacts →
	Partial 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 28, 2026
2	Guidepoint Security	Partial evidence	Reston, VA, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,232 contacts →
	Partial evidence “GuidePoint Security provides trusted cybersecurity expertise, solutions, and services that help organizations make informed decisions and minimize risk.” Source: RevenueBase Database · checked Sep 28, 2026
3	Coalfire	Strong evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	1,001-5,000	947 contacts →
	Strong 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 28, 2026
4	Trustwave, A Levelblue Company	Partial evidence	Chicago, IL, United StatesHQ checked Sep 28, 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 28, 2026
5	Telos Corporation	Indirect evidence	Ashburn, VA, United StatesHQ checked Sep 28, 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 28, 2026
6	ARETE	Indirect evidence	Boca Raton, FL, United StatesHQ checked Sep 28, 2026	201-500	462 contacts →
	Indirect evidence “Arete helps organizations stay ahead of cyber threats with standardized, intelligence-led detection, response, resolution, and resilience capabilities.” Source: RevenueBase Database · checked Sep 28, 2026
7	horizon3.ai	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 28, 2026	201-500	364 contacts →
	Partial evidence “Horizon3.ai answers the two most important questions in cybersecurity: If someone tried to compromise us, would we hold up?” Source: RevenueBase Database · checked Sep 28, 2026
8	Security Risk Advisors	Strong evidence	Philadelphia, PA, United StatesHQ checked Sep 28, 2026	201-500	315 contacts →
	Strong evidence “We deliver cybersecurity consulting, 24x7 operations and SaaS to leading companies in the Financial Services, Healthcare, Pharmaceuticals, Technology and Retail industries.” Source: RevenueBase Database · checked Sep 28, 2026
9	Digitel Corporation	Partial evidence	Johns Creek, GA, United StatesHQ checked Sep 28, 2026	51-200	305 contacts →
	Partial evidence “ThreatAdvice is a leading provider of Cybersecurity solutions and Fraud Detection.” Source: RevenueBase Database · checked Sep 28, 2026
10	Baxter Clewis Cybersecurity	Partial evidence	Cedar Hill, TX, United StatesHQ checked Sep 28, 2026	201-500	255 contacts →
	Partial evidence “Baxter Clewis Cybersecurity, we bring to the table a unique set of experiences that allow us to best serve your cybersecurity needs.” Source: RevenueBase Database · checked Sep 28, 2026
11	Lumifi	Indirect evidence	Scottsdale, AZ, United StatesHQ checked Sep 28, 2026	51-200	249 contacts →
	Indirect evidence “Lumifi Cyber helps organizations illuminate their cyber defense with continuous protection across the full security lifecycle.” Source: RevenueBase Database · checked Sep 28, 2026
12	Magna5	Partial evidence	Canonsburg, PA, United StatesHQ checked Sep 28, 2026	201-500	238 contacts →
	Partial evidence “Magna5 is a national managed IT and cybersecurity services provider supporting organizations that require always‑on availability, strong security, and regulatory compliance.” Source: RevenueBase Database · checked Sep 28, 2026
13	Systems Engineering	Indirect evidence	Portland, ME, United StatesHQ checked Sep 28, 2026	51-200	217 contacts →
	Indirect evidence “Founded in 1988, Systems Engineering is a SOC 2, Type 2-certified IT strategy and managed technology services provider.” Source: RevenueBase Database · checked Sep 28, 2026
14	Clearwater	Partial evidence	Nashville, TN, United StatesHQ checked Sep 28, 2026	201-500	207 contacts →
	Partial evidence “Clearwater serves a diverse and growing base of customers across the healthcare ecosystem, including several of the nation’s largest health systems as well as a large universe of…” Source: RevenueBase Database · checked Sep 28, 2026
15	TCM Security	Partial evidence	Charlotte, NC, United StatesHQ checked Sep 28, 2026	n/a	206 contacts →
	Partial evidence “A veteran-owned cybersecurity company focused on penetration testing, security training, and compliance.” Source: RevenueBase Database · checked Sep 28, 2026
16	Path Forward IT	Partial evidence	Cincinnati, OH, United StatesHQ checked Sep 28, 2026	201-500	204 contacts →
	Partial evidence “Path Forward IT is a healthcare-focused managed services and strategic partner supporting healthcare and life sciences organizations across the U.S.” Source: RevenueBase Database · checked Sep 28, 2026
17	Mindpoint Group, A Quantum SKY Company	Partial evidence	Reston, VA, United StatesHQ checked Sep 28, 2026	1,001-5,000	204 contacts →
	Partial evidence “MindPoint Group, a Quantum Sky company, is a cybersecurity specialist trusted by U.S.” Source: RevenueBase Database · checked Sep 28, 2026
18	Webroot	Indirect evidence	Broomfield, CO, United StatesHQ checked Sep 28, 2026	501-1,000	199 contacts →
	Indirect evidence “Webroot, an OpenText company, was the first to harness the cloud and artificial intelligence to stop zero-day threats in real time.” Source: RevenueBase Database · checked Sep 28, 2026
19	Deepseas	Indirect evidence	Globally Distributed, United StatesHQ checked Sep 28, 2026	201-500	182 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 28, 2026
20	Cypfer	Indirect evidence	Miami, FL, United StatesHQ checked Sep 28, 2026	51-200	178 contacts →
	Indirect evidence “Global Cyber Certainty Champions, in an uncertain digital world.” Source: RevenueBase Database · checked Sep 28, 2026
21	Cyber Advisors	Indirect evidence	Maple Grove, MN, United StatesHQ checked Sep 28, 2026	201-500	176 contacts →
	Indirect evidence “Cyber Advisors is a nationwide leader in cyber security, providing a comprehensive range of Offensive, Defensive, and Risk Management services.” Source: RevenueBase Database · checked Sep 28, 2026
22	Ampcus Cyber	Indirect evidence	Chantilly, VA, United StatesHQ checked Sep 28, 2026	1,001-5,000	170 contacts →
	Indirect evidence “Trusted By 2,880+ World-Class Brands And Organizations Of All Sizes…!” Source: RevenueBase Database · checked Sep 28, 2026
23	Defendedge	Partial evidence	Elmhurst, IL, United StatesHQ checked Sep 28, 2026	51-200	167 contacts →
	Partial evidence “DefendEdge is a leading US-based cybersecurity firm specializing in protecting clients' firewalls, endpoints, and applications against cyber threats and vulnerabilities.” Source: RevenueBase Database · checked Sep 28, 2026
24	Cloudwave, Healthcare IT Solutions	Strong evidence	Marlborough, MA, United StatesHQ checked Sep 28, 2026	51-200	162 contacts →
	Strong evidence “CloudWave is a full-service cybersecurity and cloud services provider built exclusively for healthcare.” Source: RevenueBase Database · checked Sep 28, 2026
25	Companion Data Services CDS	Indirect evidence	Columbia, SC, United StatesHQ checked Sep 28, 2026	201-500	160 contacts →
	Indirect evidence “Companion Data Services, LLC (CDS), a privately held company, offers secure systems development and managed hosting services specializing in the health care industry.” Source: RevenueBase Database · checked Sep 28, 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: healthcare cybersecurity firms. 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 healthcare cybersecurity firms.
Partial evidence: Its own public description names part of healthcare cybersecurity firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name healthcare cybersecurity firms. 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 1,890 healthcare cybersecurity firms based in the United States

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Healthcare cybersecurity firms based in the United States at a glance

As of Sep 28, 2026

43.6%Verified-email coverage

13.2Average contacts per company

1-10Median size (employees)

2.5%Largest-city concentration · New York

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

1,071

11-50

587

51-200

172

201-500

501-1,000

1,001-5,000

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 1,890 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 healthcare cybersecurity firms, 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 “healthcare cybersecurity firms”. 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 healthcare cybersecurity firms), 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 healthcare cybersecurity firms, 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, 10,853 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 28, 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.

Healthcare cybersecurity firms 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 healthcare cybersecurity firms, 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 healthcare cybersecurity firms are there based in the United States?

RevenueBase identified 1,890 healthcare cybersecurity firms 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?

Thales Cybersecurity Products, headquartered in Austin, tops this list with the largest team on record.

Which city has the most healthcare cybersecurity firms?

New York leads with 48 headquartered companies, followed by Atlanta (47) and Chicago (33).

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 10,853 verified decision-maker contacts tracked across these 1,890 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 28, 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.