Company lists · Data verified August 2026

Top 25 Cloud threat detection companies based in the United Kingdom

Name: Cloud threat detection 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 169 companies tracked

There are 169 cloud threat detection companies headquartered in the United Kingdom (RevenueBase, August 2026). RevenueBase tracks 7,168 professional contacts across them, including 3,518 with verified work emails and 1,123 with mobile numbers. London is the largest hub.

This list covers cloud threat detection 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.

169Companies

7,168Contacts tracked

3,518Verified emails

1,123Mobile numbers

Unlock all 169 companies Free account · no credit card · 2 minutes

The 25 largest cloud threat detection companies based in the United Kingdom

Ranked by team size

Top 25 of 169 cloud threat detection 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	Sophos	Abingdon	5,001-10,000	4,963	2,711
2	Quorum Cyber	Edinburgh	201-500	292	177
3	Obsidian Security	Cheltenham	51-200	234	159
4	Cyberfort	Thatcham	51-200	160	88
5	Telesoft	Blandford	51-200	68	19
6	Eset UK	Bournemouth	51-200	66	41
7	Attivo Networks , A Sentinelone Company	Cambridge	1,001-5,000	57	21
8	Tessian	London	201-500	52	27
9	Adarma Security	Edinburgh	201-500	52	23
10	Coretech Security	Cheltenham	51-200	41	7
11	Cybaverse	London	51-200	40	23
12	Secarma LTD	Manchester	11-50	34	23
13	defense.com	Stevenage	51-200	32	13
14	Mindtech Services	London	51-200	26	3
15	Encode	London	51-200	25	9
16	Blue Cube Security LTD	East Grinstead	11-50	23	15
17	Threat Intelligence Bureau LTD	Chelmsford	201-500	18	1
18	Cloudsecure	Cheltenham	11-50	15	7
19	Datasixth Consulting	London	51-200	14	7
20	OUR IT Services	Cirencester	11-50	13	8
21	Socguardians LTD	London	11-50	12	1
22	Disclosure Cybersecurity	London	11-50	11	7
23	PC Power International LTD	London	11-50	10	8
24	Cykube	London	11-50	9	1
25	Cyberseer	London	11-50	8	7

Showing 25 of 169 cloud threat detection companies based in the United Kingdom

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 3,518 reachable decision-makers.

Free account · no credit card

See all 169 companies

Cloud threat detection companies based in the United Kingdom at a glance

As of Aug 28, 2026

11-50Median size (employees)

LondonLargest hub · 76 HQs

1,123Contacts with mobile numbers

20Emails 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

5,001-10,000

Cloud threat detection companies by metro

Metro	Companies
Cloud threat detection companies in London	76
Cloud threat detection companies in Manchester	6
Cloud threat detection companies in Cheltenham	4
Cloud threat detection companies in Derby	3
Cloud threat detection companies in Bristol	3
Cloud threat detection companies in Birmingham	3
Cloud threat detection companies in Edinburgh	3

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 threat detection 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; 20 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 threat detection companies are there based in the United Kingdom?

There are 169 cloud threat detection companies headquartered in the United Kingdom as of August 2026 (RevenueBase).

What is the largest company on this list?

Sophos, headquartered in Abingdon, tops this list with the largest team on record.

Which city has the most cloud threat detection companies?

London leads with 76 headquartered companies, followed by Manchester (6) and Cheltenham (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 3,518 verified decision-maker contacts tracked across these 169 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.

Ready to reach these companies? Verified emails and direct dials for all 169 cloud threat detection companies based in the United Kingdom. Start with a free account, no credit card.

Get the full list

Related lists

Cloud threat detection companies by geography

Browse the directory

Browse: Companies home · All United Kingdom lists · All Cloud threat detection companies lists · New lists

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.