Company lists · Data verified August 2026

Top 25 Cloud data security companies based in the United Kingdom

Name: Cloud data security companies based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 56 companies tracked

There are 56 cloud data security companies headquartered in the United Kingdom (RevenueBase, August 2026). RevenueBase tracks 1,319 professional contacts across them, including 732 with verified work emails and 283 with mobile numbers. London is the largest hub.

This list covers cloud data security companies headquartered in the United Kingdom, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

56Companies

1,319Contacts tracked

732Verified emails

283Mobile numbers

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The 25 largest cloud data security companies based in the United Kingdom

Ranked by team size

Top 25 of 56 cloud data security companies based in the United Kingdom, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Netwrix Corporation	London	501-1,000	799	550
2	Echoworx	London	51-200	79	50
3	Iland 11 11 Systems	Ascot	1,001-5,000	59	20
4	Eticloud	Sheffield	51-200	46	17
5	Genie9	London	51-200	36	2
6	Wguard	Court	n/a	33	5
7	Istorage Limited	Greenford	11-50	31	18
8	Idecsi	London	11-50	29	19
9	Metomic	London	11-50	24	18
10	EXATE	West End	11-50	23	12
11	Storage Made Easy	Sutton	11-50	11	1
12	Cykube	London	11-50	9	1
13	Threat Protect	London	1-10	7	2
14	Silverstring Part Of The Celerity Group	Bloxham	11-50	6	2
15	CM Security	London	11-50	5	1
16	Bigmind	London	51-200	4	2
17	Besecureonline	London	1-10	3	2
18	Backupvault	Bournemouth	11-50	3	1
19	Lockular	Manchester	1-10	3	1
20	Blackdog Cloud Technologies	Warwick	11-50	2	2
21	Cqre.Net LTD	Edinburgh	1-10	2	2
22	Automated Intelligence	Antrim	11-50	2	1
23	Data2vault	Bedford	1-10	1	1
24	Cenik IT Solutions	Darwen	1-10	1	1
25	Highlander Computing Solutions Limited	Sheffield	n/a	1	1

Showing 25 of 56 cloud data security companies based in the United Kingdom

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Cloud data security companies based in the United Kingdom at a glance

As of Aug 28, 2026

1-10Median size (employees)

LondonLargest hub · 19 HQs

283Contacts with mobile numbers

5Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

Cloud data security companies by metro

Metro	Companies
Cloud data security companies in London	19
Cloud data security companies in Sheffield	2
Cloud data security companies in Manchester	2
Cloud data security companies in Bloxham	2
Cloud data security companies in Reading	2
Cloud data security companies in Edinburgh	1
Cloud data security companies in Newport	1
Cloud data security companies in Milton Keynes	1

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “cloud data security companies”, with match quality audited by blind human judging, and headquartered in the United Kingdom.
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: Contact records re-verify on a rolling cadence; 5 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many cloud data security companies are there based in the United Kingdom?

There are 56 cloud data security companies headquartered in the United Kingdom as of August 2026 (RevenueBase).

What is the largest company on this list?

Netwrix Corporation, headquartered in London, tops this list with the largest team on record.

Which city has the most cloud data security companies?

London leads with 19 headquartered companies, followed by Sheffield (2) and Manchester (2).

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 732 verified decision-maker contacts tracked across these 56 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.