Company lists · Data verified August 2026

Top 25 Cybersecurity analytics companies based in the United Kingdom

Name: Cybersecurity analytics 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 401 companies tracked

There are 401 cybersecurity analytics companies headquartered in the United Kingdom (RevenueBase, August 2026). RevenueBase tracks 15,512 professional contacts across them, including 7,023 with verified work emails and 2,352 with mobile numbers. London is the largest hub.

This list covers cybersecurity analytics 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.

401Companies

15,512Contacts tracked

7,023Verified emails

2,352Mobile numbers

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The 25 largest cybersecurity analytics companies based in the United Kingdom

Ranked by team size

Top 25 of 401 cybersecurity analytics 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	Darktrace	Cambridge	1,001-5,000	2,590	1,791
3	SISA	Leicester	201-500	739	253
4	Everfox	London	1,001-5,000	635	13
5	Withsecure	London	501-1,000	614	329
6	Quorum Cyber	Edinburgh	201-500	292	177
7	Gorilla Technology Group	London	51-200	188	75
8	Prevalent AI	London	51-200	175	101
9	Cyberfort	Thatcham	51-200	160	88
10	Fivecast	London	51-200	136	86
11	Khipu Networks	Fleet	51-200	129	94
12	Bulletproof Cyber Security	London	51-200	118	75
13	Foresite Cybersecurity	Farnborough	51-200	100	67
14	Wavenet Cyberguard	London	201-500	86	58
15	Cybersmart	London	51-200	83	55
16	Reliance Cyber	Waterloo	51-200	80	47
17	TDI Tetrad Digital Integrity	Windsor	51-200	71	39
18	Smartnumbers	London	51-200	68	40
19	Telesoft	Blandford	51-200	68	19
20	Izoologic	City Of London	201-500	67	48
21	Eset UK	Bournemouth	51-200	66	41
22	KYND	London	51-200	57	41
23	Attivo Networks , A Sentinelone Company	Cambridge	1,001-5,000	57	21
24	Cloudmark	London	51-200	54	18
25	Hexegic	London	51-200	52	30

Showing 25 of 401 cybersecurity analytics companies based in the United Kingdom

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Cybersecurity analytics companies based in the United Kingdom at a glance

As of Aug 28, 2026

11-50Median size (employees)

LondonLargest hub · 206 HQs

2,352Contacts with mobile numbers

14Emails re-verified in last 30 days

Companies by employee count

1-10

193

11-50

133

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

Cybersecurity analytics companies by metro

Metro	Companies
Cybersecurity analytics companies in London	206
Cybersecurity analytics companies in Manchester	14
Cybersecurity analytics companies in Bristol	7
Cybersecurity analytics companies in Cheltenham	7
Cybersecurity analytics companies in Birmingham	6
Cybersecurity analytics companies in Oxford	5
Cybersecurity analytics companies in Glasgow	4

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 “cybersecurity analytics 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; 14 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 cybersecurity analytics companies are there based in the United Kingdom?

There are 401 cybersecurity analytics 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 cybersecurity analytics companies?

London leads with 206 headquartered companies, followed by Manchester (14) and Bristol (7).

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 7,023 verified decision-maker contacts tracked across these 401 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.