Company lists · Data refreshed September 2026

Top 25 Online data security companies based in the United States

Name: Online data 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 21, 2026 3,819 companies tracked

RevenueBase identified 3,819 company matches for online data security companies associated with the United States as of September 2026 and tracks 104,544 professional contacts across them, including 45,249 with verified work emails. New York is the largest hub.

This list covers company matches for online data security companies 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 21, 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 21, 2026 How this list was built

3,819Companies

104,544Contacts tracked

45,249Verified emails

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The 25 largest online data security companies based in the United States

Ranked by team size

Top 25 of 3,819 company matches for online data security companies based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 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	Palo Alto Networks	Exact match	Santa Clara, CA, United StatesHQ recorded Sep 21, 2026	10001+	18,431 contacts →
	Exact match “Palo Alto Networks, the global cybersecurity leader, is shaping the cloud-centric future with technology that is transforming the way people and organizations operate.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
2	Fortinet	Exact match	Sunnyvale, CA, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
3	Symantec	Exact match	San Jose, CA, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
4	OPTIV	Exact match	Leawood, KS, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
5	Fortra	Exact match	Eden Prairie, MN, United StatesHQ recorded Sep 21, 2026	1,001-5,000	1,648 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 21, 2026 · View company records in RevenueBase
6	Thales Cybersecurity Products	Exact match	Austin, TX, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
7	Guidepoint Security	Exact match	Reston, VA, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
8	Imperva	Exact match	Austin, TX, United StatesHQ recorded Sep 21, 2026	10001+	1,217 contacts →
	Exact match “On Dec.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
9	DRUVA	Exact match	Santa Clara, CA, United StatesHQ recorded Sep 21, 2026	1,001-5,000	1,184 contacts →
	Exact match “Druva is the leading provider of data security solutions, empowering customers to secure and recover their data from all threats.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
10	Coalfire	Exact match	Chicago, IL, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
11	Trustwave, A Levelblue Company	Exact match	Chicago, IL, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
12	Cyderes	Exact match	Kansas City, MO, United StatesHQ recorded Sep 21, 2026	1,001-5,000	844 contacts →
	Exact match “Today’s threatscape is relentless.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
13	Application Specialist Kompany ASK	Exact match	Lansing, MI, United StatesHQ recorded Sep 21, 2026	n/a	785 contacts →
	Exact match “ASK is now Convergence Networks!” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
14	Nortonlifelock	Exact match	Tempe, AZ, United StatesHQ recorded Sep 21, 2026	n/a	740 contacts →
	Exact match “NortonLifeLock and Avast merged in 2022 and are now Gen™ (NASDAQ: GEN)- a global company dedicated to powering Digital Freedom through its trusted Cyber Safety brands.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15	Network Intelligence	Exact match	Plano, TX, United StatesHQ recorded Sep 21, 2026	501-1,000	641 contacts →
	Exact match “At Network Intelligence, we combine our team of 500+ security professionals with Transilience – our cutting-edge AI platform.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
16	Telos Corporation	Exact match	Ashburn, VA, United StatesHQ recorded Sep 21, 2026	501-1,000	629 contacts →
	Exact match “Telos Corporation (NASDAQ: TLS) empowers and protects the world’s most security-conscious organizations with efficient, adaptable, and secure solutions that safeguard people…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
17	Vikingcloud	Exact match	Chicago, IL, United StatesHQ recorded Sep 21, 2026	1,001-5,000	628 contacts →
	Exact match “VikingCloud delivers battle-tested cybersecurity and compliance solutions that simply work.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
18	Malwarebytes	Exact match	Santa Clara, CA, United StatesHQ recorded Sep 21, 2026	501-1,000	604 contacts →
	Exact match “Malwarebytes is reimagining security to safeguard devices, data, and people, no matter their location, lifestyle or means.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
19	Ultraviolet Cyber	Exact match	Mclean, VA, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
20	Seclore	Exact match	Santa Clara, CA, United StatesHQ recorded Sep 21, 2026	201-500	497 contacts →
	Exact match “Seclore is the Data Security Intelligence company for the era of enterprise AI, helping organizations turn data and AI risk into readiness.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
21	Aujas Cybersecurity	Exact match	Cupertino, CA, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
22	DUO Security	Exact match	Ann Arbor, MI, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
23	United Security, Inc. USI	Exact match	Red Bank, NJ, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
24	Novacoast	Exact match	Wichita, KS, United StatesHQ recorded Sep 21, 2026	201-500	369 contacts →
	Exact match “Novacoast is an international cybersecurity company specializing in IT services and software development.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
25	Paladion An Atos Business	Exact match	Reston, VA, United StatesHQ recorded Sep 21, 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 21, 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 “online data security companies”. 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 3,819 online data security companies based in the United States

See the full list, filter by size, metro and specialty, and access 45,249 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Online data security companies based in the United States at a glance

As of Sep 21, 2026

43.3%Verified-email coverage

27.4Average contacts per company

1-10Median size (employees)

2.8%Largest-city concentration · New York

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

2,135

11-50

1,193

51-200

357

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 3,819 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 “online data security companies” 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 45,249 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 21, 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.

Online data security companies 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 “online data security companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many online data security companies are there based in the United States?

RevenueBase identified 3,819 company matches for online data security companies 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?

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

Which city has the most online data security companies?

New York leads with 108 company records, followed by Houston (70) and Austin (68).

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 45,249 professional contacts with verified work emails tracked across these 3,819 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 21, 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.