Company lists · Data refreshed September 2026

Top 25 Cloud security businesses based in the United States

Name: Cloud security businesses 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 1,616 companies tracked

RevenueBase identified 1,616 cloud security businesses headquartered in the United States as of September 2026 and tracks 305,940 professional contacts across them, including 81,890 with verified work emails. New York is the largest hub.

This list covers cloud security businesses 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 21, 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 21, 2026 86% judged on-target in blind review

1,616Companies

305,940Contacts tracked

81,890Verified emails

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The 25 largest cloud security businesses based in the United States

Ranked by team size

Top 25 of 1,616 cloud security businesses based in the United States, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to cloud security businesses: 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	Amazon WEB Services AWS	Partial evidence	Seattle, WA, United StatesHQ checked Sep 21, 2026	10001+	156,457 contacts →
	Partial evidence “Launched in 2006, Amazon Web Services (AWS) began exposing key infrastructure services to businesses in the form of web services - now widely known as cloud computing.” Source: RevenueBase Database · checked Sep 21, 2026
2	Palo Alto Networks	Partial evidence	Santa Clara, CA, United StatesHQ checked Sep 21, 2026	10001+	18,431 contacts →
	Partial evidence “Palo Alto Networks, the global cybersecurity leader, is shaping the cloud-centric future with technology that is transforming the way people and organizations operate.” Source: RevenueBase Database · checked Sep 21, 2026
3	Vmware	Partial evidence	Palo Alto, CA, United StatesHQ checked Sep 21, 2026	10001+	17,326 contacts →
	Partial evidence “Broadcom's VMware software manages cloud complexity so customers can modernize infrastructure, accelerate app development, and protect workloads, wherever these reside.” Source: RevenueBase Database · checked Sep 21, 2026
4	Fortinet	Indirect evidence	Sunnyvale, CA, United StatesHQ checked Sep 21, 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 21, 2026
5	Crowdstrike	Strong evidence	Remote, United StatesHQ checked Sep 21, 2026	5,001-10,000	10,118 contacts →
	Strong evidence “CrowdStrike (Nasdaq: CRWD), a global cybersecurity leader, has redefined modern security with the world’s most advanced cloud-native platform for protecting critical areas of…” Source: RevenueBase Database · checked Sep 21, 2026
6	Veeam Software	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 21, 2026	5,001-10,000	6,262 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026
7	Rubrik	Partial evidence	Palo Alto, CA, United StatesHQ checked Sep 21, 2026	1,001-5,000	4,448 contacts →
	Partial evidence “Rubrik (NYSE: RBRK), the Security and AI company, operates at the intersection of data protection, cyber resilience and enterprise AI acceleration.” Source: RevenueBase Database · checked Sep 21, 2026
8	Arctic Wolf	Indirect evidence	Eden Prairie, MN, United StatesHQ checked Sep 21, 2026	1,001-5,000	3,145 contacts →
	Indirect evidence “Every year new technologies, vendors, and solutions emerge-yet despite this constant innovation, high-profile breaches are all over the headlines.” Source: RevenueBase Database · checked Sep 21, 2026
9	Qualys	Strong evidence	Foster City, CA, United StatesHQ checked Sep 21, 2026	1,001-5,000	3,058 contacts →
	Strong evidence “Qualys, Inc.(NASDAQ: QLYS) is a leading provider of disruptive cloud-based security, compliance and IT solutions with more than subscription customers worldwide, including a…” Source: RevenueBase Database · checked Sep 21, 2026
10	Netskope	Strong evidence	Santa Clara, CA, United StatesHQ checked Sep 21, 2026	1,001-5,000	3,056 contacts →
	Strong evidence “Netskope (NASDAQ: NTSK), a leader in modern security and networking for the cloud and AI era, addresses the needs of both security and networking teams by providing optimized…” Source: RevenueBase Database · checked Sep 21, 2026
11	Sentinelone	Indirect evidence	Mountain View, CA, United StatesHQ checked Sep 21, 2026	1,001-5,000	3,052 contacts →
	Indirect evidence “SentinelOne is the world's leading AI-powered cybersecurity platform.” Source: RevenueBase Database · checked Sep 21, 2026
12	Varonis	Partial evidence	Miami, FL, United StatesHQ checked Sep 21, 2026	1,001-5,000	2,715 contacts →
	Partial evidence “Varonis unifies AI-native data security, AI security and governance, and behavior-based threat detection.” Source: RevenueBase Database · checked Sep 21, 2026
13	WIZ	Partial evidence	New York, NY, United StatesHQ checked Sep 21, 2026	1,001-5,000	2,559 contacts →
	Partial evidence “Wiz, now part of Google Cloud, protects everything you build and run.” Source: RevenueBase Database · checked Sep 21, 2026
14	Avepoint	Partial evidence	Jersey City, NJ, United StatesHQ checked Sep 21, 2026	1,001-5,000	2,199 contacts →
	Partial evidence “AvePoint is the global leader in data protection, unifying data security, governance, and resilience to provide a trusted foundation for AI.” Source: RevenueBase Database · checked Sep 21, 2026
15	Barracuda	Indirect evidence	Campbell, CA, United StatesHQ checked Sep 21, 2026	1,001-5,000	2,157 contacts →
	Indirect evidence “Barracuda is a leading global cybersecurity company providing complete protection against complex threats for all size business.” Source: RevenueBase Database · checked Sep 21, 2026
16	Forcepoint	Partial evidence	Austin, TX, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,636 contacts →
	Partial evidence “Forcepoint simplifies security for global businesses and governments.” Source: RevenueBase Database · checked Sep 21, 2026
17	Thales Cybersecurity Products	Indirect evidence	Austin, TX, United StatesHQ checked Sep 21, 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 21, 2026
18	Imperva	Indirect evidence	Austin, TX, United StatesHQ checked Sep 21, 2026	10001+	1,217 contacts →
	Indirect evidence “On Dec.” Source: RevenueBase Database · checked Sep 21, 2026
19	DRUVA	Partial evidence	Santa Clara, CA, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,184 contacts →
	Partial evidence “Druva is the leading provider of data security solutions, empowering customers to secure and recover their data from all threats.” Source: RevenueBase Database · checked Sep 21, 2026
20	Coalfire	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 21, 2026	1,001-5,000	947 contacts →
	Indirect 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 21, 2026
21	Keeper Security, INC	Partial evidence	Chicago, IL, United StatesHQ checked Sep 21, 2026	501-1,000	696 contacts →
	Partial evidence “Keeper Security is transforming cybersecurity for millions of individuals and thousands of organizations globally.” Source: RevenueBase Database · checked Sep 21, 2026
22	Huntress	Indirect evidence	Columbia, MD, United StatesHQ checked Sep 21, 2026	501-1,000	696 contacts →
	Indirect evidence “Protect Your Endpoints, Identities, Logs, and Employees.” Source: RevenueBase Database · checked Sep 21, 2026
23	Bluevoyant	Indirect evidence	New York, NY, United StatesHQ checked Sep 21, 2026	501-1,000	683 contacts →
	Indirect evidence “BlueVoyant’s Cyber Defense Platform (CDP) integrates MDR, TPRM, and DRP into a seamless, scalable solution.” Source: RevenueBase Database · checked Sep 21, 2026
24	BIGID	Indirect evidence	New York, NY, United StatesHQ checked Sep 21, 2026	501-1,000	665 contacts →
	Indirect evidence “BigID Next connects the dots in Data & AI.” Source: RevenueBase Database · checked Sep 21, 2026
25	Sysdig	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	501-1,000	659 contacts →
	Partial evidence “Good-enough security isn’t good enough.” Source: RevenueBase Database · checked Sep 21, 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: cloud security businesses. 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 cloud security businesses.
Partial evidence: Its own public description names part of cloud security businesses, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name cloud security businesses. 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 1,616 cloud security businesses based in the United States

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Cloud security businesses based in the United States at a glance

As of Sep 21, 2026

26.8%Verified-email coverage

189.3Average contacts per company

11-50Median size (employees)

4.8%Largest-city concentration · New York

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

674

11-50

577

51-200

213

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 1,616 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 cloud security businesses, 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 “cloud security businesses”. 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 cloud security businesses), 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 cloud security businesses, 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, 81,890 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 21, 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.

Cloud security businesses 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 cloud security businesses, 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 cloud security businesses are there based in the United States?

RevenueBase identified 1,616 cloud security businesses 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?

Amazon WEB Services AWS, headquartered in Seattle, tops this list with the largest team on record.

Which city has the most cloud security businesses?

New York leads with 77 headquartered companies, followed by Austin (39) and Houston (34).

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 81,890 verified decision-maker contacts tracked across these 1,616 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 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 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.