Company lists · Data refreshed September 2026
Top 25 Cloud security startups worldwide
RevenueBase identified 3,597 cloud security startups worldwide as of September 2026 and tracks 164,753 professional contacts across them, including 78,557 with verified work emails. The United States is the largest market and London the largest hub.
This list covers cloud security startups 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 27, 2026. Country and city lists for cloud security startups 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.
The 25 largest cloud security startups worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 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 27, 2026Thanks. The Data Team will review it. | |||||
| 2 | 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 27, 2026Thanks. The Data Team will review it. | |||||
| 3 | 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 27, 2026Thanks. The Data Team will review it. | |||||
| 4 | 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 27, 2026Thanks. The Data Team will review it. | |||||
| 5 | 4,942 contacts → | ||||
Indirect evidence “We’re a global cybersecurity leader, helping to make the world safe for exchanging digital information.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 6 | 4,925 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 27, 2026Thanks. The Data Team will review it. | |||||
| 7 | 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 27, 2026Thanks. The Data Team will review it. | |||||
| 8 | 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 27, 2026Thanks. The Data Team will review it. | |||||
| 9 | 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 27, 2026Thanks. The Data Team will review it. | |||||
| 10 | 3,052 contacts → | ||||
Indirect evidence “SentinelOne is the world's leading AI-powered cybersecurity platform.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 11 | 2,886 contacts → | ||||
Indirect evidence “SailPoint equips the modern enterprise to seamlessly manage and secure access to applications and data through the lens of identity – at speed and scale.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 12 | 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 27, 2026Thanks. The Data Team will review it. | |||||
| 13 | 2,559 contacts → | ||||
Partial evidence “Wiz, now part of Google Cloud, protects everything you build and run.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 14 | 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 27, 2026Thanks. The Data Team will review it. | |||||
| 15 | 2,172 contacts → | ||||
Indirect evidence “Bitdefender is a cybersecurity leader delivering best-in-class threat prevention, detection, and response solutions worldwide.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 16 | 2,163 contacts → | ||||
Indirect evidence “The identity standard for government, finance, and high-assurance organizations.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 17 | 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 27, 2026Thanks. The Data Team will review it. | |||||
| 18 | 1,669 contacts → | ||||
Indirect evidence “BeyondTrust is the global cybersecurity leader protecting Paths to Privilege™.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 19 | 1,648 contacts → | ||||
Indirect evidence “Fortra delivers AI-amplified cybersecurity solutions that help organizations use and protect data with confidence.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 20 | 1,636 contacts → | ||||
Partial evidence “Forcepoint simplifies security for global businesses and governments.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 21 | 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 27, 2026Thanks. The Data Team will review it. | |||||
| 22 | 1,217 contacts → | ||||
Indirect evidence “On Dec.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 23 | 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 27, 2026Thanks. The Data Team will review it. | |||||
| 24 | 1,026 contacts → | ||||
Indirect evidence “Irdeto, a CANAL+ company, is the world leader in digital platform cybersecurity, empowering businesses to innovate for a secure, connected future.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 25 | 809 contacts → | ||||
Indirect evidence “Netwrix secures the foundation of modern business: data and identity.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
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 startups. 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 startups.
- Partial evidence
- Its own public description names part of cloud security startups, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name cloud security startups. 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 3,597 cloud security startups worldwide
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Cloud security startups worldwide at a glance
As of Sep 27, 2026Companies by employee count
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 cloud security startups, 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 cloud security startups are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “cloud security startups”. 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 startups), 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 startups, 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, 78,557 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 27, 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 startups by location
23 lists · largest firstEvery Cloud security startups list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Cloud security startups based in the United States912
- Cloud security startups based in India400
- Cloud security startups based in the United Kingdom188
- Cloud security startups based in Brazil130
- Cloud security startups based in Canada120
- Cloud security startups based in Australia104
- Cloud security startups based in the United Arab Emirates72
- Cloud security startups based in Germany69
- Cloud security startups based in Israel66
- Cloud security startups based in France59
- Cloud security startups based in Mexico46
- Cloud security startups based in South Africa46
- Cloud security startups based in Italy44
- Cloud security startups based in the Netherlands44
- Cloud security startups based in Spain40
- Cloud security startups based in Saudi Arabia37
- Cloud security startups based in Switzerland29
- Cloud security startups based in Türkiye29
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 cloud security startups, 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 startups are there worldwide?
RevenueBase identified 3,597 cloud security startups 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 cloud security startups?
The United States leads with 912 companies, followed by India (400) and the United Kingdom (188). Every cloud security startups list by country and city is linked on this page.
Which city has the most cloud security startups?
London leads with 81 headquartered companies, followed by Sao Paulo (51) and Dubai (50).
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 78,557 verified decision-maker contacts tracked across these 3,597 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 27, 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.