Company lists · Data verified August 2026

Top 25 Cloud vulnerability management companies based in the United Kingdom

Name: Cloud vulnerability management 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 126 companies tracked

There are 126 cloud vulnerability management companies headquartered in the United Kingdom (RevenueBase, August 2026). RevenueBase tracks 1,779 professional contacts across them, including 718 with verified work emails and 97 with mobile numbers. London is the largest hub.

This list covers cloud vulnerability management 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.

126Companies

1,779Contacts tracked

718Verified emails

97Mobile numbers

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The 25 largest cloud vulnerability management companies based in the United Kingdom

Ranked by team size

Top 25 of 126 cloud vulnerability management 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	Iomart	Glasgow	201-500	422	200
2	CSI LTD A CSI Group Company	London	201-500	161	116
3	Greenbone AG	London	51-200	108	28
4	Appcheck LTD	Leeds	51-200	97	64
5	Virtual IT LTD	Laindon	51-200	79	51
6	Intruder	London	51-200	61	35
7	Iland 11 11 Systems	Ascot	1,001-5,000	59	20
8	Cloudzenia	London	51-200	47	18
9	Eticloud	Sheffield	51-200	46	17
10	defense.com	Stevenage	51-200	32	13
11	ONAPP	London	51-200	31	11
12	Vambrace Cybersecurity	Leeds	11-50	23	11
13	Hexiosec	Cheltenham	11-50	18	11
14	Threat Intelligence Bureau LTD	Chelmsford	201-500	18	1
15	Cloud Fruition Technologies	London	11-50	17	4
16	Cloudsecure	Cheltenham	11-50	15	7
17	The Bunker	Kent	51-200	15	5
18	Lifeincloud	London	11-50	15	2
19	OUR IT Services	Cirencester	11-50	13	8
20	Ossvisor	Maidenhead	11-50	11	3
21	Digital Craftsmen	London London	11-50	9	8
22	Cykube	London	11-50	9	1
23	Cyscale	London	11-50	8	4
24	Cloud9 Security	London	11-50	7	6
25	Netmetix LTD	Coventry	11-50	7	2

Showing 25 of 126 cloud vulnerability management companies based in the United Kingdom

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Cloud vulnerability management companies based in the United Kingdom at a glance

As of Aug 28, 2026

11-50Median size (employees)

LondonLargest hub · 57 HQs

97Contacts with mobile numbers

4Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

Cloud vulnerability management companies by metro

Metro	Companies
Cloud vulnerability management companies in London	57
Cloud vulnerability management companies in Leeds	5
Cloud vulnerability management companies in Manchester	4
Cloud vulnerability management companies in Birmingham	3
Cloud vulnerability management companies in Glasgow	2
Cloud vulnerability management companies in Farnham	2
Cloud vulnerability management companies in Huddersfield	2

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 vulnerability management 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; 4 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 vulnerability management companies are there based in the United Kingdom?

There are 126 cloud vulnerability management companies headquartered in the United Kingdom as of August 2026 (RevenueBase).

What is the largest company on this list?

Iomart, headquartered in Glasgow, tops this list with the largest team on record.

Which city has the most cloud vulnerability management companies?

London leads with 57 headquartered companies, followed by Leeds (5) and Manchester (4).

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 718 verified decision-maker contacts tracked across these 126 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.