Company lists · Data refreshed September 2026

Top 25 Managed cloud security providers worldwide

RevenueBase identified 6,161 managed cloud security providers worldwide as of September 2026 and tracks 192,010 professional contacts across them, including 87,025 with verified work emails. The United States is the largest market and London the largest hub.

This list covers managed cloud security providers worldwide, 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 28, 2026. Country and city lists for managed cloud security providers follow the table.

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 28, 2026 86% judged on-target in blind review
6,161Companies
192,010Contacts tracked
87,025Verified emails
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The 25 largest managed cloud security providers worldwide

Ranked by team size
Top 25 of 6,161 managed cloud security providers worldwide, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to managed cloud security providers: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceSanta Clara, CA, United StatesHQ checked Sep 28, 202610001+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 28, 2026
2Indirect evidenceSunnyvale, CA, United StatesHQ checked Sep 28, 202610001+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 28, 2026
3Strong evidenceSan Jose, CA, United StatesHQ checked Sep 28, 202610001+11,169 contacts →

Strong evidence

“Your backstage pass to the most epic cybersecurity solutions on the market for Endpoint, Network, Data and Cloud security.”

Source: RevenueBase Database · checked Sep 28, 2026
4Strong evidenceRemote, United StatesHQ checked Sep 28, 20265,001-10,00010,118 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 28, 2026
5Indirect evidenceYoyogi, JapanHQ checked Sep 28, 20265,001-10,0004,942 contacts →

Indirect evidence

“We’re a global cybersecurity leader, helping to make the world safe for exchanging digital information.”

Source: RevenueBase Database · checked Sep 28, 2026
6Indirect evidenceAbingdon, United KingdomHQ checked Sep 28, 20265,001-10,0004,925 contacts →

Indirect evidence

“Sophos is a cybersecurity leader defending organizations globally with an AI-driven platform and expert-led services.”

Source: RevenueBase Database · checked Sep 28, 2026
7Indirect evidenceEden Prairie, MN, United StatesHQ checked Sep 28, 20261,001-5,0003,145 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 28, 2026
8Strong evidenceFoster City, CA, United StatesHQ checked Sep 28, 20261,001-5,0003,058 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 28, 2026
9Strong evidenceSanta Clara, CA, United StatesHQ checked Sep 28, 20261,001-5,0003,056 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 28, 2026
10Indirect evidenceMountain View, CA, United StatesHQ checked Sep 28, 20261,001-5,0003,052 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
11Partial evidenceMiami, FL, United StatesHQ checked Sep 28, 20261,001-5,0002,715 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
12Partial evidenceNew York, NY, United StatesHQ checked Sep 28, 20261,001-5,0002,559 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
13Partial evidenceJersey City, NJ, United StatesHQ checked Sep 28, 20261,001-5,0002,199 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 28, 2026
14Indirect evidenceCampbell, CA, United StatesHQ checked Sep 28, 20261,001-5,0002,157 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 28, 2026
15Indirect evidenceAustin, TX, United StatesHQ checked Sep 28, 20261,001-5,0001,252 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 28, 2026
16Partial evidenceReston, VA, United StatesHQ checked Sep 28, 20261,001-5,0001,232 contacts →

Partial evidence

“GuidePoint Security provides trusted cybersecurity expertise, solutions, and services that help organizations make informed decisions and minimize risk.”

Source: RevenueBase Database · checked Sep 28, 2026
17Indirect evidenceAustin, TX, United StatesHQ checked Sep 28, 202610001+1,217 contacts →

Indirect evidence

“On Dec.”

Source: RevenueBase Database · checked Sep 28, 2026
18Indirect evidenceSeattle, WA, United StatesHQ checked Sep 28, 20261,001-5,0001,059 contacts →

Indirect evidence

“WatchGuard® Technologies, Inc.”

Source: RevenueBase Database · checked Sep 28, 2026
19Indirect evidenceChicago, IL, United StatesHQ checked Sep 28, 2026501-1,000874 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
20Indirect evidenceKansas City, MO, United StatesHQ checked Sep 28, 20261,001-5,000844 contacts →

Indirect evidence

“Today’s threatscape is relentless.”

Source: RevenueBase Database · checked Sep 28, 2026
21Indirect evidenceFrisco, TX, United KingdomHQ checked Sep 28, 2026501-1,000809 contacts →

Indirect evidence

“Netwrix secures the foundation of modern business: data and identity.”

Source: RevenueBase Database · checked Sep 28, 2026
22Indirect evidenceColumbia, MD, United StatesHQ checked Sep 28, 2026501-1,000696 contacts →

Indirect evidence

“Protect Your Endpoints, Identities, Logs, and Employees.”

Source: RevenueBase Database · checked Sep 28, 2026
23Indirect evidenceAlpharetta, GA, United StatesHQ checked Sep 28, 2026501-1,000687 contacts →

Indirect evidence

“Customers of all sizes globally rely on Simeio to help secure their organizations.”

Source: RevenueBase Database · checked Sep 28, 2026
24Indirect evidenceNew York, NY, United StatesHQ checked Sep 28, 2026501-1,000683 contacts →

Indirect evidence

“BlueVoyant’s Cyber Defense Platform (CDP) integrates MDR, TPRM, and DRP into a seamless, scalable solution.”

Source: RevenueBase Database · checked Sep 28, 2026
25Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 28, 2026501-1,000659 contacts →

Partial evidence

“Good-enough security isn’t good enough.”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 25 of 6,161 managed cloud security providers worldwide

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Managed cloud security providers worldwide at a glance

As of Sep 28, 2026
45.3%Verified-email coverage
31.2Average contacts per company
11-50Median size (employees)
2.5%Largest-city concentration · London
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
2,741
11-50
2,361
51-200
729
201-500
184
501-1,000
47
1,001-5,000
51
5,001-10,000
16
10001+
16

Email recency is reported on each country list linked below.

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 managed cloud security providers, 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.
Coverage
Every country. Country and city lists for managed cloud security providers are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “managed cloud security providers”. 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 managed cloud security providers), 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 managed cloud security providers, and records with no verified work email.
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, 87,025 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 28, 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.

Managed cloud security providers by location

48 lists · largest first

Every Managed cloud security providers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 managed cloud security providers, 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 managed cloud security providers are there worldwide?

RevenueBase identified 6,161 managed cloud security providers worldwide 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 country has the most managed cloud security providers?

The United States leads with 1,876 companies, followed by India (567) and the United Kingdom (370). Every managed cloud security providers list by country and city is linked on this page.

Which city has the most managed cloud security providers?

London leads with 151 headquartered companies, followed by New York (82) and Dubai (72).

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 87,025 verified decision-maker contacts tracked across these 6,161 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 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 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.