Company lists · Data refreshed September 2026

Top 25 Cybersecurity services for small business based in the United States

Name: Cybersecurity services for small business 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 4,902 companies tracked

RevenueBase identified 4,902 company matches for cybersecurity services for small business associated with the United States as of September 2026 and tracks 87,732 professional contacts across them, including 35,420 with verified work emails. New York is the largest hub.

This list covers company matches for cybersecurity services for small business 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 28, 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 28, 2026 How this list was built

4,902Companies

87,732Contacts tracked

35,420Verified emails

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The 25 largest cybersecurity services for small business based in the United States

Ranked by team size

Top 25 of 4,902 company matches for cybersecurity services for small business based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 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	Fortinet	Exact match	Sunnyvale, CA, United StatesHQ recorded Sep 28, 2026	10001+	14,289 contacts →
	Exact match “Fortinet makes possible a digital world that we can always trust through its mission to protect people, devices, and data everywhere.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2	Symantec	Exact match	San Jose, CA, United StatesHQ recorded Sep 28, 2026	10001+	11,169 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 28, 2026 · View company records in RevenueBase
3	OPTIV	Exact match	Leawood, KS, United StatesHQ recorded Sep 28, 2026	1,001-5,000	2,222 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 28, 2026 · View company records in RevenueBase
4	Barracuda	Exact match	Campbell, CA, United StatesHQ recorded Sep 28, 2026	1,001-5,000	2,157 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 28, 2026 · View company records in RevenueBase
5	Thales Cybersecurity Products	Exact match	Austin, TX, United StatesHQ recorded Sep 28, 2026	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 28, 2026 · View company records in RevenueBase
6	Guidepoint Security	Exact match	Reston, VA, United StatesHQ recorded Sep 28, 2026	1,001-5,000	1,232 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 28, 2026 · View company records in RevenueBase
7	Coalfire	Exact match	Chicago, IL, United StatesHQ recorded Sep 28, 2026	1,001-5,000	947 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 28, 2026 · View company records in RevenueBase
8	Zerofox	Exact match	Baltimore, MD, United StatesHQ recorded Sep 28, 2026	501-1,000	904 contacts →
	Exact match “ZeroFox is the solution to discover, validate, and disrupt external cyber threats before they harm revenue or reputation.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9	Trustwave, A Levelblue Company	Exact match	Chicago, IL, United StatesHQ recorded Sep 28, 2026	501-1,000	874 contacts →
	Exact match “Trustwave, a LevelBlue Company, is a globally recognized cybersecurity leader that reduces cyber risk and fortifies organizations against disruptive and damaging cyber threats.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10	Huntress	Exact match	Columbia, MD, United StatesHQ recorded Sep 28, 2026	501-1,000	696 contacts →
	Exact match “Protect Your Endpoints, Identities, Logs, and Employees.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11	Comodo	Exact match	Bloomfield, NJ, United StatesHQ recorded Sep 28, 2026	51-200	566 contacts →
	Exact match “Comodo - Protecting Your Digital World At Comodo, we are dedicated to safeguarding your digital property with Comodo Website Security.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12	Ultraviolet Cyber	Exact match	Mclean, VA, United StatesHQ recorded Sep 28, 2026	501-1,000	523 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13	Vc3	Exact match	Columbia, SC, United StatesHQ recorded Sep 28, 2026	501-1,000	495 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 28, 2026 · View company records in RevenueBase
14	Aujas Cybersecurity	Exact match	Cupertino, CA, United StatesHQ recorded Sep 28, 2026	1,001-5,000	473 contacts →
	Exact match “At Aujas Cybersecurity, we specialize in building and transforming cybersecurity postures to help businesses effectively mitigate risks.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15	Meriplex	Exact match	Houston, TX, United StatesHQ recorded Sep 28, 2026	501-1,000	450 contacts →
	Exact match “If you’re a midsize enterprise with employees (i.e, an “MSE” according to Gartner), we know what you’re going through.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16	DUO Security	Exact match	Ann Arbor, MI, United StatesHQ recorded Sep 28, 2026	501-1,000	435 contacts →
	Exact match “We are Duo, and we’re here to democratize security.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17	United Security, Inc. USI	Exact match	Red Bank, NJ, United StatesHQ recorded Sep 28, 2026	1,001-5,000	416 contacts →
	Exact match “United Security Inc.(USI) provides personalized security solutions enhanced by advanced technology and cyber services.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18	Paladion An Atos Business	Exact match	Reston, VA, United StatesHQ recorded Sep 28, 2026	501-1,000	369 contacts →
	Exact match “As of April 2023, Paladion is part of Atos Group.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19	US Claro	Exact match	Miramar, FL, United StatesHQ recorded Sep 28, 2026	201-500	345 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20	Intelligent Technical Solutions	Exact match	Las Vegas, NV, United StatesHQ recorded Sep 28, 2026	201-500	317 contacts →
	Exact match “Intelligent Technical Solutions is your trusted business partner for all your Cybersecurity, Managed and Co-managed IT support, Risk & Compliance, Data Analytics, and Consulting…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21	Security Risk Advisors	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 28, 2026	201-500	315 contacts →
	Exact match “We deliver cybersecurity consulting, 24x7 operations and SaaS to leading companies in the Financial Services, Healthcare, Pharmaceuticals, Technology and Retail industries.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22	Cynet Security	Exact match	Boston, MA, United StatesHQ recorded Sep 28, 2026	201-500	309 contacts →
	Exact match “Cynet’s unified, AI-powered cybersecurity platform brings together a full suite of security capabilities in a single, simple solution, backed by 24x7 SOC support.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23	Logically	Exact match	Dublin, OH, United StatesHQ recorded Sep 28, 2026	201-500	300 contacts →
	Exact match “Welcome to Logically.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24	Cipher A Prosegur Company	Exact match	Miami, FL, United StatesHQ recorded Sep 28, 2026	201-500	295 contacts →
	Exact match “We are Cipher, a company from the Prosegur group specializing in Cybersecurity.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25	Centre Technologies	Exact match	Houston, TX, United StatesHQ recorded Sep 28, 2026	201-500	286 contacts →
	Exact match “Centre is a modern IT and cybersecurity partner delivering Managed IT, Business Intelligence, Cybersecurity, and Cloud services.” Recorded in the RevenueBase company graph · Sep 28, 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 services for small business”. 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 4,902 cybersecurity services for small business based in the United States

See the full list, filter by size, metro and specialty, and access 35,420 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Cybersecurity services for small business based in the United States at a glance

As of Sep 28, 2026

40.4%Verified-email coverage

17.9Average contacts per company

1-10Median size (employees)

2.7%Largest-city concentration · New York

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

2,971

11-50

1,447

51-200

355

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 4,902 companies.

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 services for small business” 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 35,420 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 28, 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 services for small business 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 services for small business”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many cybersecurity services for small business are there based in the United States?

RevenueBase identified 4,902 company matches for cybersecurity services for small business 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?

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

Which city has the most cybersecurity services for small business?

New York leads with 132 company records, followed by Austin (84) and Houston (84).

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 35,420 professional contacts with verified work emails tracked across these 4,902 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 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 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.