Company lists · Data refreshed September 2026

Top 25 Cybersecurity service providers based in the United States

Name: Cybersecurity service providers based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 1, 2026 8,805 companies tracked

RevenueBase identified 8,805 company matches for cybersecurity service providers associated with the United States as of September 2026 and tracks 161,848 professional contacts across them, including 65,126 with verified work emails and 54,874 with mobile numbers. New York is the largest hub.

This list covers company matches for cybersecurity service providers 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 September 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 Sep 1, 2026 How this list was built

8,805Companies

161,848Contacts tracked

65,126Verified emails

54,874Mobile numbers

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The 25 largest cybersecurity service providers based in the United States

Ranked by team size

Top 25 of 8,805 company matches for cybersecurity service providers based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Symantec	Exact match	San Jose, CA, United States	10001+	11,179 contacts →
	Exact match “Your backstage pass to the most epic cybersecurity solutions on the market for Endpoint, Network, Data and Cloud security.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
2	Trellix	Exact match	Plano, TX, United States	1,001-5,000	3,490 contacts →
	Exact match “Trellix is a global cybersecurity company delivering intelligence-led cyber resilience for security-conscious organizations at any stage of their journey.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
3	OPTIV	Exact match	Chantilly, VA, United States	1,001-5,000	2,206 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 · Sep 1, 2026 · View company records in RevenueBase
4	Bitdefender	Exact match	Fort Lauderdale, FL, United States	1,001-5,000	2,141 contacts →
	Exact match “Bitdefender is a cybersecurity leader delivering best-in-class threat prevention, detection, and response solutions worldwide.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
5	Barracuda	Exact match	Alpharetta, GA, United States	1,001-5,000	2,108 contacts →
	Exact match “Barracuda is a leading global cybersecurity company providing complete protection against complex threats for all size business.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
6	Fortra	Exact match	Eden Prairie, MN, United States	1,001-5,000	1,640 contacts →
	Exact match “Fortra delivers AI-amplified cybersecurity solutions that help organizations use and protect data with confidence.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
7	Thales Cybersecurity Products	Exact match	Austin, TX, United States	1,001-5,000	1,252 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
8	Guidepoint Security	Exact match	Tampa, FL, United States	1,001-5,000	1,234 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 · Sep 1, 2026 · View company records in RevenueBase
9	Imperva	Exact match	Austin, TX, United States	10001+	1,211 contacts →
	Exact match “On Dec.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
10	Watchguard Technologies	Exact match	Seattle, WA, United States	1,001-5,000	1,054 contacts →
	Exact match “WatchGuard® Technologies, Inc.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
11	Coalfire	Exact match	Chicago, IL, United States	1,001-5,000	960 contacts →
	Exact match “Coalfire is the premier Cybersecurity and Compliance Services leader for the tech, healthcare, and finance industries.(This page is maintained by Marketing.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
12	Netenrich	Exact match	San Jose, CA, United States	501-1,000	885 contacts →
	Exact match “Netenrich is redefining security operations by shifting the focus from "efficiency"(speed) to "efficacy"(comprehensive coverage).” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
13	TPX	Exact match	South San Francisco, CA, United States	1,001-5,000	767 contacts →
	Exact match “TPx is the reliable sidekick every growing business deserves, powering your tech while you take the lead.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
14	Bitsight	Exact match	Raleigh, NC, United States	501-1,000	753 contacts →
	Exact match “Bitsight is the global leader in cyber risk intelligence, leveraging advanced AI to empower organizations with precise insights derived from the industry’s most extensive external…” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
15	Coalition, INC	Exact match	San Francisco, CA, United States	501-1,000	719 contacts →
	Exact match “Coalition is the world's first Active Insurance provider designed to help prevent digital risk before it strikes.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
16	Huntress	Exact match	Columbia, MD, United States	501-1,000	694 contacts →
	Exact match “Protect Your Endpoints, Identities, Logs, and Employees.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
17	IT Solutions	Exact match	New Orleans, LA, United States	501-1,000	680 contacts →
	Exact match “With 30 years of experience as a trusted managed services provider, we're your dedicated partner in navigating the complex world of technology, so you can focus on growing your…” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
18	Telos Corporation	Exact match	Las Vegas, NV, United States	501-1,000	636 contacts →
	Exact match “Telos empowers and protects the world’s most security-conscious organizations with solutions for continuous security assurance of individuals, systems, and information.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
19	Vikingcloud	Exact match	Chicago, IL, United States	1,001-5,000	618 contacts →
	Exact match “VikingCloud delivers battle-tested cybersecurity and compliance solutions that simply work.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
20	Levelblue	Exact match	Dallas, TX, United States	1,001-5,000	582 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
21	Integris	Exact match	Denver, CO, United States	501-1,000	575 contacts →
	Exact match “Integris is a national leader in future-ready Managed Services, delivering innovative solutions that drive digital maturity for small and midsize businesses.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
22	Dragos, INC	Exact match	Houston, TX, United States	501-1,000	544 contacts →
	Exact match “Dragos provides the most effective OT cybersecurity technology for industrial and critical infrastructure to deliver on our global mission: to safeguard civilization.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
23	Securityscorecard	Exact match	New York, NY, United States	501-1,000	529 contacts →
	Exact match “Funded by world-class investors, including Evolution Equity Partners, Silver Lake Partners, Sequoia Capital, GV, Riverwood Capital, and others, SecurityScorecard is the global…” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
24	Vc3	Exact match	Memphis, TN, United States	501-1,000	517 contacts →
	Exact match “VC3 is a managed IT and cybersecurity services provider serving organizations throughout the US and Canada.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
25	Ultraviolet Cyber	Exact match	Phoenix, AZ, United States	501-1,000	517 contacts →
	Exact match “UltraViolet Cyber is the only security operations partner that unifies red, blue, and purple team capabilities into one integrated program.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “cybersecurity service providers”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 8,805 cybersecurity service providers based in the United States

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Cybersecurity service providers based in the United States at a glance

As of Sep 1, 2026

40.2%Verified-email coverage

33.9%Mobile-number coverage

18.4Average contacts per company

1-10Median size (employees)

3.1%Largest-city concentration · New York

Sep 1, 2026Page data refreshed

Companies by employee count

1-10

4,893

11-50

2,837

51-200

764

201-500

159

501-1,000

1,001-5,000

10001+

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 “cybersecurity service providers” 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 65,126 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 September 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.

Cybersecurity service providers by metro

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 “cybersecurity service providers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many cybersecurity service providers are there based in the United States?

RevenueBase identified 8,805 company matches for cybersecurity service providers associated with the United States as of September 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?

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

Which city has the most cybersecurity service providers?

New York leads with 273 company records, followed by Houston (165) and Miami (146).

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 65,126 professional contacts with verified work emails tracked across these 8,805 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 September 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.