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Company lists · Data refreshed September 2026

Top 25 Multi-cloud security companies based in the United States

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 1,026 companies tracked

RevenueBase identified 1,026 multi-cloud security companies headquartered in the United States as of September 2026 and tracks 157,717 professional contacts across them, including 77,359 with verified work emails and 42,988 with mobile numbers. New York is the largest hub.

This list covers multi-cloud 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, how directly it supports the match, and when it was last checked. Data refreshed September 5, 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 HQ checked on every row Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review
1,026Companies
157,717Contacts tracked
77,359Verified emails
42,988Mobile numbers
Unlock all 1,026 companies Free signup · no credit card · 500 free credits

The 25 largest multi-cloud security companies based in the United States

Ranked by team size
Top 25 of 1,026 multi-cloud security companies based in the United States, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names multi-cloud security companies: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#CompanyHeadquartersEmployeesContacts
1
Palo Alto NetworksPartial evidence
Santa Clara, CA, United StatesHQ checked Sep 5, 202610001+18,431

“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: company website · checked Sep 5, 2026
2
VmwarePartial evidence
Palo Alto, CA, United StatesHQ checked Sep 5, 202610001+17,326

“Broadcom's VMware software manages cloud complexity so customers can modernize infrastructure, accelerate app development, and protect workloads, wherever these reside.”

Source: company website · checked Sep 5, 2026
3
FortinetIndirect evidence
Sunnyvale, CA, United StatesHQ checked Sep 5, 202610001+14,289

“Fortinet makes possible a digital world that we can always trust through its mission to protect people, devices, and data everywhere.”

Source: company website · checked Sep 5, 2026
4
CrowdstrikeStrong evidence
Remote, United StatesHQ checked Sep 5, 20265,001-10,00010,118

“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: company website · checked Sep 5, 2026
5
CohesityIndirect evidence
Santa Clara, CA, United StatesHQ checked Sep 5, 20261,001-5,0004,962

“A modern platform for the AI era Our mission at Cohesity is simple: to protect, secure, and provide insights into the world’s data.”

Source: company website · checked Sep 5, 2026
6
ProofpointIndirect evidence
Sunnyvale, CA, United StatesHQ checked Sep 5, 20261,001-5,0004,722

“Intent-based protection for every human and every AI agent, across all data.”

Source: company website · checked Sep 5, 2026
7
RubrikPartial evidence
Palo Alto, CA, United StatesHQ checked Sep 5, 20261,001-5,0004,448

“Rubrik (NYSE: RBRK), the Security and AI company, operates at the intersection of data protection, cyber resilience and enterprise AI acceleration.”

Source: company website · checked Sep 5, 2026
8
Arctic WolfIndirect evidence
Eden Prairie, MN, United StatesHQ checked Sep 5, 20261,001-5,0003,145

“Every year new technologies, vendors, and solutions emerge-yet despite this constant innovation, high-profile breaches are all over the headlines.”

Source: company website · checked Sep 5, 2026
9
QualysStrong evidence
Foster City, CA, United StatesHQ checked Sep 5, 20261,001-5,0003,058

“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: company website · checked Sep 5, 2026
10
NetskopeStrong evidence
Santa Clara, CA, United StatesHQ checked Sep 5, 20261,001-5,0003,056

“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: company website · checked Sep 5, 2026
11
SentineloneIndirect evidence
Mountain View, CA, United StatesHQ checked Sep 5, 20261,001-5,0003,052

“SentinelOne is the world's leading AI-powered cybersecurity platform.”

Source: company website · checked Sep 5, 2026
12
VaronisPartial evidence
Miami, FL, United StatesHQ checked Sep 5, 20261,001-5,0002,715

“Varonis unifies AI-native data security, AI security and governance, and behavior-based threat detection.”

Source: company website · checked Sep 5, 2026
13
WIZPartial evidence
New York, NY, United StatesHQ checked Sep 5, 20261,001-5,0002,559

“Wiz, now part of Google Cloud, protects everything you build and run.”

Source: company website · checked Sep 5, 2026
14
AvepointPartial evidence
Jersey City, NJ, United StatesHQ checked Sep 5, 20261,001-5,0002,199

“AvePoint is the global leader in data protection, unifying data security, governance, and resilience to provide a trusted foundation for AI.”

Source: company website · checked Sep 5, 2026
15
BarracudaIndirect evidence
Campbell, CA, United StatesHQ checked Sep 5, 20261,001-5,0002,157

“Barracuda is a leading global cybersecurity company providing complete protection against complex threats for all size business.”

Source: company website · checked Sep 5, 2026
16
FortraIndirect evidence
Eden Prairie, MN, United StatesHQ checked Sep 5, 20261,001-5,0001,648

“Fortra delivers AI-amplified cybersecurity solutions that help organizations use and protect data with confidence.”

Source: company website · checked Sep 5, 2026
17
ForcepointPartial evidence
Austin, TX, United StatesHQ checked Sep 5, 20261,001-5,0001,636

“Forcepoint simplifies security for global businesses and governments.”

Source: company website · checked Sep 5, 2026
18
Thales Cybersecurity ProductsIndirect evidence
Austin, TX, United StatesHQ checked Sep 5, 20261,001-5,0001,252

“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: company website · checked Sep 5, 2026
19
ImpervaIndirect evidence
Austin, TX, United StatesHQ checked Sep 5, 202610001+1,217

“On Dec.”

Source: company website · checked Sep 5, 2026
20
DRUVAPartial evidence
Santa Clara, CA, United StatesHQ checked Sep 5, 20261,001-5,0001,184

“Druva is the leading provider of data security solutions, empowering customers to secure and recover their data from all threats.”

Source: company website · checked Sep 5, 2026
21
GigamonPartial evidence
Santa Clara, CA, United StatesHQ checked Sep 5, 20261,001-5,0001,184

“Gigamon® protects the hybrid cloud networks and data of the world’s most complex organizations.”

Source: company website · checked Sep 5, 2026
22
Watchguard TechnologiesIndirect evidence
Seattle, WA, United StatesHQ checked Sep 5, 20261,001-5,0001,059

“WatchGuard® Technologies, Inc.”

Source: company website · checked Sep 5, 2026
23
Trustwave, A Levelblue CompanyIndirect evidence
Chicago, IL, United StatesHQ checked Sep 5, 2026501-1,000874

“Trustwave, a LevelBlue Company, is a globally recognized cybersecurity leader that reduces cyber risk and fortifies organizations against disruptive and damaging cyber threats.”

Source: company website · checked Sep 5, 2026
24
SecuronixPartial evidence
Plano, TX, United StatesHQ checked Sep 5, 2026501-1,000712

“Securonix is transforming how security operations are delivered, measured, and scaled.”

Source: company website · checked Sep 5, 2026
25
Keeper Security, INCPartial evidence
Chicago, IL, United StatesHQ checked Sep 5, 2026501-1,000696

“Keeper Security is transforming cybersecurity for millions of individuals and thousands of organizations globally.”

Source: company website · checked Sep 5, 2026

Showing 25 of 1,026 multi-cloud security companies based in the United States

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Multi-cloud security companies based in the United States at a glance

As of Sep 5, 2026
11-50Median size (employees)
New YorkLargest hub · 62 HQs
42,988Contacts with mobile numbers
Sep 5, 2026Data refreshed

Companies by employee count

1-10
330
11-50
386
51-200
166
201-500
52
501-1,000
36
1,001-5,000
40
5,001-10,000
3
10001+
12

Verified emails by last verification

0–30
71,290
31–60
4,928
61–90
77
90–180
37
180+
1,027

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 multi-cloud security companies, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 “multi-cloud security companies”. Matching reads each company's description, not its industry code or its name.
What we exclude
Companies whose own description does not clearly place them among multi-cloud 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 an evidence 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, 77,359 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 5, 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.

Multi-cloud security companies by metro

Frequently asked

How many multi-cloud security companies are there based in the United States?

RevenueBase identified 1,026 multi-cloud 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?

Palo Alto Networks, headquartered in Santa Clara, tops this list with the largest team on record.

Which city has the most multi-cloud security companies?

New York leads with 62 headquartered companies, followed by San Francisco (39) and San Jose (31).

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 77,359 verified decision-maker contacts tracked across these 1,026 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 5, 2026.

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Related lists

Browse: Companies home · All United States lists · All Multi-cloud security companies lists · New lists

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.

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