Company lists · Data refreshed September 2026

Top 25 Healthcare ot security companies based in the United States

Name: Healthcare ot security companies 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 1,268 companies tracked

RevenueBase identified 1,268 healthcare ot security companies headquartered in the United States as of September 2026 and tracks 40,269 professional contacts across them, including 20,624 with verified work emails. New York is the largest hub.

This list covers healthcare ot security companies 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

1,268Companies

40,269Contacts tracked

20,624Verified emails

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The 25 largest healthcare ot security companies based in the United States

Ranked by team size

Top 25 of 1,268 healthcare ot security companies 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 ot security companies: 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 28, 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 28, 2026
2	Fortra	Indirect evidence	Eden Prairie, MN, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,648 contacts →
	Indirect evidence “Fortra delivers AI-amplified cybersecurity solutions that help organizations use and protect data with confidence.” Source: RevenueBase Database · checked Sep 28, 2026
3	Thales Cybersecurity Products	Indirect evidence	Austin, TX, United StatesHQ checked Sep 28, 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 28, 2026
4	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
5	Imperva	Indirect evidence	Austin, TX, United StatesHQ checked Sep 28, 2026	10001+	1,217 contacts →
	Indirect evidence “On Dec.” Source: RevenueBase Database · checked Sep 28, 2026
6	Coalfire	Partial evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	1,001-5,000	947 contacts →
	Partial 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
7	Trustwave, A Levelblue Company	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	501-1,000	874 contacts →
	Indirect 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
8	Vectra AI	Indirect evidence	San Jose, CA, United StatesHQ checked Sep 28, 2026	501-1,000	651 contacts →
	Indirect evidence “Vectra AI is the cybersecurity AI leader in protecting modern networks from modern attacks.” Source: RevenueBase Database · checked Sep 28, 2026
9	Network Intelligence	Partial evidence	Plano, TX, United StatesHQ checked Sep 28, 2026	501-1,000	641 contacts →
	Partial evidence “At Network Intelligence, we combine our team of 500+ security professionals with Transilience – our cutting-edge AI platform.” Source: RevenueBase Database · checked Sep 28, 2026
10	Vikingcloud	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 28, 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 28, 2026
11	Computer Solutions	Indirect evidence	San Antonio, TX, United StatesHQ checked Sep 28, 2026	51-200	389 contacts →
	Indirect evidence “Computer Solutions: Trusted Managed IT Services and Cybersecurity Partner in San Antonio, Texas For more than 46 years, Computer Solutions has helped businesses, schools…” Source: RevenueBase Database · checked Sep 28, 2026
12	Security Risk Advisors	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 28, 2026	201-500	315 contacts →
	Partial 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
13	Logically	Indirect evidence	Dublin, OH, United StatesHQ checked Sep 28, 2026	201-500	300 contacts →
	Indirect evidence “Welcome to Logically.” Source: RevenueBase Database · checked Sep 28, 2026
14	Stratogent	Indirect evidence	San Mateo, CA, United StatesHQ checked Sep 28, 2026	201-500	294 contacts →
	Indirect evidence “Stratogent does IT and Cybersecurity operations.” Source: RevenueBase Database · checked Sep 28, 2026
15	DAS Health	Partial evidence	Tampa, FL, United StatesHQ checked Sep 28, 2026	201-500	272 contacts →
	Partial evidence “DAS Health delivers the highest value Health IT and Business Solutions for healthcare organizations all over the country.” Source: RevenueBase Database · checked Sep 28, 2026
16	Baxter Clewis Cybersecurity	Indirect evidence	Cedar Hill, TX, United StatesHQ checked Sep 28, 2026	201-500	255 contacts →
	Indirect 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
17	Hillstone Networks	Partial evidence	Santa Clara, CA, United StatesHQ checked Sep 28, 2026	1,001-5,000	230 contacts →
	Partial evidence “Hillstone Networks’ Integrative Cyber Security approach delivers coverage, control, and consolidation to secure digital transformation for more than enterprises worldwide.” Source: RevenueBase Database · checked Sep 28, 2026
18	Loginsoft	Partial evidence	Chantilly, VA, United StatesHQ checked Sep 28, 2026	201-500	220 contacts →
	Partial evidence “For over 20 years, leading companies in Telecom, Cybersecurity, Healthcare, Banking, New Media, and more have come to rely on Loginsoft as a trusted resource for technology talent.” Source: RevenueBase Database · checked Sep 28, 2026
19	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
20	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
21	Mindpoint Group, A Quantum SKY Company	Indirect evidence	Reston, VA, United StatesHQ checked Sep 28, 2026	1,001-5,000	204 contacts →
	Indirect evidence “MindPoint Group, a Quantum Sky company, is a cybersecurity specialist trusted by U.S.” Source: RevenueBase Database · checked Sep 28, 2026
22	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
23	Convergence Networks	Indirect evidence	Us & Canada, OR, United StatesHQ checked Sep 28, 2026	201-500	185 contacts →
	Indirect evidence “Convergence Networks provides managed IT services, cybersecurity, cloud solutions, IT consulting, Modern work solutions, and compliance support to organizations across Canada and…” Source: RevenueBase Database · checked Sep 28, 2026
24	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
25	Cloudwave, Healthcare IT Solutions	Partial evidence	Marlborough, MA, United StatesHQ checked Sep 28, 2026	51-200	162 contacts →
	Partial evidence “CloudWave is a full-service cybersecurity and cloud services provider built exclusively for healthcare.” 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 ot security companies. 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 ot security companies.
Partial evidence: Its own public description names part of healthcare ot security companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name healthcare ot security companies. 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 1,268 healthcare ot security companies based in the United States

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Healthcare ot security companies based in the United States at a glance

As of Sep 28, 2026

51.2%Verified-email coverage

31.8Average contacts per company

11-50Median size (employees)

2.9%Largest-city concentration · New York

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

628

11-50

437

51-200

140

201-500

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 1,268 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 ot security companies, 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 ot security companies”. 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 ot security companies), 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 ot security companies, 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, 20,624 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 ot security companies 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 ot security companies, 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 ot security companies are there based in the United States?

RevenueBase identified 1,268 healthcare ot security companies 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 healthcare ot security companies?

New York leads with 37 headquartered companies, followed by Atlanta (31) and Chicago (24).

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 20,624 verified decision-maker contacts tracked across these 1,268 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.