Company lists · Data refreshed September 2026
Top 25 Cloud security startups based in the United Kingdom
RevenueBase identified 188 company matches for cloud security startups associated with the United Kingdom as of September 2026 and tracks 7,931 professional contacts across them, including 3,583 with verified work emails. London is the largest hub.
This list covers company matches for cloud security startups associated with the United Kingdom, 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 27, 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.
The 25 largest cloud security startups based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 4,925 contacts → | ||||
Exact match “Sophos is a cybersecurity leader defending organizations globally with an AI-driven platform and expert-led services.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 2 | 414 contacts → | ||||
Exact match “Iomart combines cutting-edge cloud technology with deep industry expertise to help organisations transform with confidence.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 3 | 297 contacts → | ||||
Exact match “At Quorum Cyber, we're on a mission to help good people win.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 4 | 159 contacts → | ||||
Exact match “At Cyberfort we are passionate about the cyber security services we deliver for our customers which keeps their people, data, systems and technology infrastructure secure…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 5 | 68 contacts → | ||||
Exact match “The organisations that run our world face relentless complexity and evolving threats.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 6 | 66 contacts → | ||||
Exact match “We help businesses and individuals stay protected in an increasingly complex digital world.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 7 | 61 contacts → | ||||
Exact match “TechForing is a global leader in cybersecurity, dedicated to protecting digital assets and ensuring a safer cyberspace for businesses and individuals.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 8 | 46 contacts → | ||||
Exact match “Get to know etiCloud - Delivering tomorrow's technology, today.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 9 | 42 contacts → | ||||
Exact match “CoreTech is a specialist cyber security company whose people are motivated by the desire to deliver exceptional capabilities coupled with a real sense of mission.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 10 | 40 contacts → | ||||
Exact match “Advanced three-layer, identity based encryption ensures your data and communications stay protected, inside and outside your network.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 11 | 32 contacts → | ||||
Exact match “Defense.com is transforming the way businesses manage cyber security by allowing them to easily identify, prioritise and remediate threats.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 12 | 32 contacts → | ||||
Exact match “Our expert team provide secure datacentre, network and cloud native solutions as well as industry leading managed services.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 13 | 32 contacts → | ||||
Exact match “Intrinsic Security is a UK-headquartered cybersecurity firm delivering 24/7 threat detection, incident response, and resilience across cloud, hybrid, OT, IoT, and identity…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 14 | 30 contacts → | ||||
Exact match “iStorage is a global leader in the development of innovative, easy-to-use and ultra-secure hardware-encrypted data storage and cloud encryption solutions.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 15 | 27 contacts → | ||||
Exact match “The business landscape is fundamentally changing – the way and location of work has been transformed.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 16 | 25 contacts → | ||||
Exact match “Encode is now part of Obrela Security Industries collectively delivering cutting edge Cyber Security Services, empowering organizations to better protect against cyber threats.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 17 | 24 contacts → | ||||
Exact match “Nanjgel Solutions is focused on delivering the best IT security for businesses.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 18 | 22 contacts → | ||||
Exact match “Blue Cube Security is a trusted UK cyber security partner with over 25 years of experience helping organisations stay secure in an increasingly complex digital world.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 19 | 21 contacts → | ||||
Exact match “Redefining Identity Management” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 20 | 19 contacts → | ||||
Exact match “Why Clearswift?” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 21 | 18 contacts → | ||||
Exact match “Hexiosec is the new name for Red Maple Technologies.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 22 | 18 contacts → | ||||
Exact match “Technology is changing faster than ever.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 23 | 18 contacts → | ||||
Exact match “Organisation focused on Cloud and Security” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 24 | 17 contacts → | ||||
Exact match “Assure Technical are technical security experts.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 25 | 17 contacts → | ||||
Exact match “We are a leading cybersecurity services organization with more than a decade of proven expertise in consulting, solution implementation and managed services.” Recorded in the RevenueBase company graph · Sep 27, 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 “cloud security startups”. 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 188 cloud security startups based in the United Kingdom
See the full list, filter by size, metro and specialty, and access 3,583 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Cloud security startups based in the United Kingdom at a glance
As of Sep 27, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 188 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 Kingdom whose business descriptions match “cloud security startups” 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 3,583 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 27, 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.
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 “cloud security startups”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many cloud security startups are there based in the United Kingdom?
RevenueBase identified 188 company matches for cloud security startups associated with the United Kingdom 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?
Sophos tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most cloud security startups?
London leads with 80 company records, followed by Manchester (8) and Cheltenham (4).
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 3,583 professional contacts with verified work emails tracked across these 188 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 27, 2026.
Ready to reach these companies? Verified emails and direct dials for all 188 cloud security startups based in the United Kingdom. Start with a free account, no credit card.
Download this list →Related lists
Cloud security startups by geography
- Cloud security startups based in Mumbai, India
- Cloud security startups based in Pune, India
- Cloud security startups based in Austin, United States
- Cloud security startups based in New York, United States
- Cloud security startups based in San Francisco, United States
- Cloud security startups based in Australia
- Cloud security startups based in Brazil
- Cloud security startups based in Canada
- Cloud security startups based in France
- Cloud security startups based in Germany
- Cloud security startups based in India
- Cloud security startups based in Israel
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Cloud security startups based in Mumbai, India
- Cloud security startups based in Pune, India
- Cloud security startups based in Austin, United States
- Cloud security startups based in New York, United States
- Cloud security startups based in San Francisco, United States
- Cloud security startups based in Australia
Company intelligence · public preview
Top 25 cloud security startups based in the United Kingdom
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 188 matching company records for cloud security startups based in the United Kingdom, with 7,931 tracked contacts and 3,583 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 27, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 cloud security startups based in the United Kingdom
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Sophossophos.comHQ: Abingdon, United KingdomReported employees: 5,001-10,000 | Abingdon, United Kingdom | 5,001-10,000 | Exact match | 4,925 contacts → |
“Sophos is a cybersecurity leader defending organizations globally with an AI-driven platform and expert-led services.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Iomartiomart.comHQ: Glasgow, United KingdomReported employees: 201-500 | Glasgow, United Kingdom | 201-500 | Exact match | 414 contacts → |
“Iomart combines cutting-edge cloud technology with deep industry expertise to help organisations transform with confidence.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Quorum Cyberquorumcyber.comHQ: Edinburgh, United KingdomReported employees: 201-500 | Edinburgh, United Kingdom | 201-500 | Exact match | 297 contacts → |
“At Quorum Cyber, we're on a mission to help good people win.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Cyberfortcyberfortgroup.comHQ: Thatcham, United KingdomReported employees: 51-200 | Thatcham, United Kingdom | 51-200 | Exact match | 159 contacts → |
“At Cyberfort we are passionate about the cyber security services we deliver for our customers which keeps their people, data, systems and technology infrastructure secure…” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Telesofttelesoft-technologies.comHQ: Blandford, United KingdomReported employees: 51-200 | Blandford, United Kingdom | 51-200 | Exact match | 68 contacts → |
“The organisations that run our world face relentless complexity and evolving threats.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Eset UKeset.comHQ: Bournemouth, United KingdomReported employees: 51-200 | Bournemouth, United Kingdom | 51-200 | Exact match | 66 contacts → |
“We help businesses and individuals stay protected in an increasingly complex digital world.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Techforingtechforing.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 61 contacts → |
“TechForing is a global leader in cybersecurity, dedicated to protecting digital assets and ensuring a safer cyberspace for businesses and individuals.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Eticloudeverythingthatis.cloudHQ: Sheffield, United KingdomReported employees: 51-200 | Sheffield, United Kingdom | 51-200 | Exact match | 46 contacts → |
“Get to know etiCloud - Delivering tomorrow's technology, today.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Coretech Securitycoretechsec.comHQ: Cheltenham, United KingdomReported employees: 51-200 | Cheltenham, United Kingdom | 51-200 | Exact match | 42 contacts → |
“CoreTech is a specialist cyber security company whose people are motivated by the desire to deliver exceptional capabilities coupled with a real sense of mission.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Galaxkeygalaxkey.comHQ: St. Albans, United KingdomReported employees: 51-200 | St. Albans, United Kingdom | 51-200 | Exact match | 40 contacts → |
“Advanced three-layer, identity based encryption ensures your data and communications stay protected, inside and outside your network.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  defense.comdefense.comHQ: Stevenage, United KingdomReported employees: 51-200 | Stevenage, United Kingdom | 51-200 | Exact match | 32 contacts → |
“Defense.com is transforming the way businesses manage cyber security by allowing them to easily identify, prioritise and remediate threats.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Flow Global Solutionsflowtransform.comHQ: Hemel Hempstead, United KingdomReported employees: 11-50 | Hemel Hempstead, United Kingdom | 11-50 | Exact match | 32 contacts → |
“Our expert team provide secure datacentre, network and cloud native solutions as well as industry leading managed services.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Intrinsic Securityintrinsic.securityHQ: Peterborough, United KingdomReported employees: 51-200 | Peterborough, United Kingdom | 51-200 | Exact match | 32 contacts → |
“Intrinsic Security is a UK-headquartered cybersecurity firm delivering 24/7 threat detection, incident response, and resilience across cloud, hybrid, OT, IoT, and identity…” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Istorage Limitedistorage-uk.comHQ: Perivale, United KingdomReported employees: 11-50 | Perivale, United Kingdom | 11-50 | Exact match | 30 contacts → |
“iStorage is a global leader in the development of innovative, easy-to-use and ultra-secure hardware-encrypted data storage and cloud encryption solutions.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Surf Securitysurf.securityHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 27 contacts → |
“The business landscape is fundamentally changing – the way and location of work has been transformed.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Encodeobrela.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 25 contacts → |
“Encode is now part of Obrela Security Industries collectively delivering cutting edge Cyber Security Services, empowering organizations to better protect against cyber threats.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Nanjgel Solutionsnanjgel.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 24 contacts → |
“Nanjgel Solutions is focused on delivering the best IT security for businesses.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Blue Cube Security LTDbluecubesecurity.comHQ: East Grinstead, United KingdomReported employees: 11-50 | East Grinstead, United Kingdom | 11-50 | Exact match | 22 contacts → |
“Blue Cube Security is a trusted UK cyber security partner with over 25 years of experience helping organisations stay secure in an increasingly complex digital world.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Pureidpureid.ioHQ: Royston, United KingdomReported employees: 11-50 | Royston, United Kingdom | 11-50 | Exact match | 21 contacts → |
“Redefining Identity Management” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Clearswiftclearswift.com HQ: Berkshire, United KingdomReported employees: 201-500 | Berkshire, United Kingdom | 201-500 | Exact match | 19 contacts → |
“Why Clearswift?” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Hexiosechexiosec.comHQ: Cheltenham, United KingdomReported employees: 11-50 | Cheltenham, United Kingdom | 11-50 | Exact match | 18 contacts → |
“Hexiosec is the new name for Red Maple Technologies.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Cloud Fruition Technologiescloudfruition.comHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 18 contacts → |
“Technology is changing faster than ever.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Threat Intelligence Bureau LTDthreatintelligencebureau.comHQ: Chelmsford, United KingdomReported employees: 201-500 | Chelmsford, United Kingdom | 201-500 | Exact match | 18 contacts → |
“Organisation focused on Cloud and Security” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Assure Technicalassuretechnical.comHQ: Malvern, United KingdomReported employees: 11-50 | Malvern, United Kingdom | 11-50 | Exact match | 17 contacts → |
“Assure Technical are technical security experts.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Sinevissinevis.comHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 17 contacts → |
“We are a leading cybersecurity services organization with more than a decade of proven expertise in consulting, solution implementation and managed services.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 188 company matches
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Cloud security startups: dataset insights
September 27, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
188 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 188 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 27, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for cloud security startups?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many cloud security startups did RevenueBase find based in the United Kingdom?
The saved snapshot records 188 matching company records, 7,931 tracked contacts and 3,583 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 27, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Cloud security startups by geography
- Cloud security startups based in Mumbai, India
- Cloud security startups based in Pune, India
- Cloud security startups based in Austin, United States
- Cloud security startups based in New York, United States
- Cloud security startups based in San Francisco, United States
- Cloud security startups based in Australia
- Cloud security startups based in Brazil
- Cloud security startups based in Canada
- Cloud security startups based in France
- Cloud security startups based in Germany
- Cloud security startups based in India
- Cloud security startups based in Israel
Cite this list
RevenueBase Data Team. Top 25 cloud security startups based in the United Kingdom. Snapshot: September 27, 2026. https://revenuebase.ai/companies/cloud-security-startups/united-kingdom.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Cloud security startups based in Mumbai, India
- Cloud security startups based in Pune, India
- Cloud security startups based in Austin, United States
- Cloud security startups based in New York, United States
- Cloud security startups based in San Francisco, United States
- Cloud security startups based in Australia
Company intelligence · public preview
Top 25 cloud security startups based in the United Kingdom
RevenueBase records 188 matching company records for cloud security startups based in the United Kingdom, with 7,931 tracked contacts and 3,583 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 27, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 cloud security startups based in the United Kingdom
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Sophossophos.com HQ: Abingdon, United KingdomReported employees: 5,001-10,000 | Abingdon, United Kingdom | 5,001-10,000 | Exact match | 4,925 contacts → |
“Sophos is a cybersecurity leader defending organizations globally with an AI-driven platform and expert-led services.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Iomartiomart.com HQ: Glasgow, United KingdomReported employees: 201-500 | Glasgow, United Kingdom | 201-500 | Exact match | 414 contacts → |
“Iomart combines cutting-edge cloud technology with deep industry expertise to help organisations transform with confidence.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Quorum Cyberquorumcyber.com HQ: Edinburgh, United KingdomReported employees: 201-500 | Edinburgh, United Kingdom | 201-500 | Exact match | 297 contacts → |
“At Quorum Cyber, we're on a mission to help good people win.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Cyberfortcyberfortgroup.com HQ: Thatcham, United KingdomReported employees: 51-200 | Thatcham, United Kingdom | 51-200 | Exact match | 159 contacts → |
“At Cyberfort we are passionate about the cyber security services we deliver for our customers which keeps their people, data, systems and technology infrastructure secure…” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Telesofttelesoft-technologies.com HQ: Blandford, United KingdomReported employees: 51-200 | Blandford, United Kingdom | 51-200 | Exact match | 68 contacts → |
“The organisations that run our world face relentless complexity and evolving threats.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Eset UKeset.com HQ: Bournemouth, United KingdomReported employees: 51-200 | Bournemouth, United Kingdom | 51-200 | Exact match | 66 contacts → |
“We help businesses and individuals stay protected in an increasingly complex digital world.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Techforingtechforing.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 61 contacts → |
“TechForing is a global leader in cybersecurity, dedicated to protecting digital assets and ensuring a safer cyberspace for businesses and individuals.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Eticloudeverythingthatis.cloud HQ: Sheffield, United KingdomReported employees: 51-200 | Sheffield, United Kingdom | 51-200 | Exact match | 46 contacts → |
“Get to know etiCloud - Delivering tomorrow's technology, today.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Coretech Securitycoretechsec.com HQ: Cheltenham, United KingdomReported employees: 51-200 | Cheltenham, United Kingdom | 51-200 | Exact match | 42 contacts → |
“CoreTech is a specialist cyber security company whose people are motivated by the desire to deliver exceptional capabilities coupled with a real sense of mission.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Galaxkeygalaxkey.com HQ: St. Albans, United KingdomReported employees: 51-200 | St. Albans, United Kingdom | 51-200 | Exact match | 40 contacts → |
“Advanced three-layer, identity based encryption ensures your data and communications stay protected, inside and outside your network.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | defense.comdefense.com HQ: Stevenage, United KingdomReported employees: 51-200 | Stevenage, United Kingdom | 51-200 | Exact match | 32 contacts → |
“Defense.com is transforming the way businesses manage cyber security by allowing them to easily identify, prioritise and remediate threats.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Flow Global Solutionsflowtransform.com HQ: Hemel Hempstead, United KingdomReported employees: 11-50 | Hemel Hempstead, United Kingdom | 11-50 | Exact match | 32 contacts → |
“Our expert team provide secure datacentre, network and cloud native solutions as well as industry leading managed services.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Intrinsic Securityintrinsic.security HQ: Peterborough, United KingdomReported employees: 51-200 | Peterborough, United Kingdom | 51-200 | Exact match | 32 contacts → |
“Intrinsic Security is a UK-headquartered cybersecurity firm delivering 24/7 threat detection, incident response, and resilience across cloud, hybrid, OT, IoT, and identity…” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Istorage Limitedistorage-uk.com HQ: Perivale, United KingdomReported employees: 11-50 | Perivale, United Kingdom | 11-50 | Exact match | 30 contacts → |
“iStorage is a global leader in the development of innovative, easy-to-use and ultra-secure hardware-encrypted data storage and cloud encryption solutions.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Surf Securitysurf.security HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 27 contacts → |
“The business landscape is fundamentally changing – the way and location of work has been transformed.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Encodeobrela.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 25 contacts → |
“Encode is now part of Obrela Security Industries collectively delivering cutting edge Cyber Security Services, empowering organizations to better protect against cyber threats.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Nanjgel Solutionsnanjgel.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 24 contacts → |
“Nanjgel Solutions is focused on delivering the best IT security for businesses.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Blue Cube Security LTDbluecubesecurity.com HQ: East Grinstead, United KingdomReported employees: 11-50 | East Grinstead, United Kingdom | 11-50 | Exact match | 22 contacts → |
“Blue Cube Security is a trusted UK cyber security partner with over 25 years of experience helping organisations stay secure in an increasingly complex digital world.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Pureidpureid.io HQ: Royston, United KingdomReported employees: 11-50 | Royston, United Kingdom | 11-50 | Exact match | 21 contacts → |
“Redefining Identity Management” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Clearswiftclearswift.com HQ: Berkshire, United KingdomReported employees: 201-500 | Berkshire, United Kingdom | 201-500 | Exact match | 19 contacts → |
“Why Clearswift?” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Hexiosechexiosec.com HQ: Cheltenham, United KingdomReported employees: 11-50 | Cheltenham, United Kingdom | 11-50 | Exact match | 18 contacts → |
“Hexiosec is the new name for Red Maple Technologies.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Cloud Fruition Technologiescloudfruition.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 18 contacts → |
“Technology is changing faster than ever.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Threat Intelligence Bureau LTDthreatintelligencebureau.com HQ: Chelmsford, United KingdomReported employees: 201-500 | Chelmsford, United Kingdom | 201-500 | Exact match | 18 contacts → |
“Organisation focused on Cloud and Security” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Assure Technicalassuretechnical.com HQ: Malvern, United KingdomReported employees: 11-50 | Malvern, United Kingdom | 11-50 | Exact match | 17 contacts → |
“Assure Technical are technical security experts.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Sinevissinevis.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 17 contacts → |
“We are a leading cybersecurity services organization with more than a decade of proven expertise in consulting, solution implementation and managed services.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 188 company matches
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Cloud security startups: dataset insights
September 27, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
188 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 188 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 27, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for cloud security startups?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many cloud security startups did RevenueBase find based in the United Kingdom?
The saved snapshot records 188 matching company records, 7,931 tracked contacts and 3,583 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 27, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Cloud security startups by geography
- Cloud security startups based in Mumbai, India
- Cloud security startups based in Pune, India
- Cloud security startups based in Austin, United States
- Cloud security startups based in New York, United States
- Cloud security startups based in San Francisco, United States
- Cloud security startups based in Australia
- Cloud security startups based in Brazil
- Cloud security startups based in Canada
- Cloud security startups based in France
- Cloud security startups based in Germany
- Cloud security startups based in India
- Cloud security startups based in Israel
Cite this list
RevenueBase Data Team. Top 25 cloud security startups based in the United Kingdom. Snapshot: September 27, 2026. https://revenuebase.ai/companies/cloud-security-startups/united-kingdom.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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