Company lists · Data verified August 2026

Top 25 Edge computing security companies based in the United Kingdom

Name: Edge computing 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 149 companies tracked

There are 149 edge computing security companies headquartered in the United Kingdom (RevenueBase, August 2026). RevenueBase tracks 10,257 professional contacts across them, including 5,472 with verified work emails and 1,618 with mobile numbers. London is the largest hub.

This list covers edge computing 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.

149Companies

10,257Contacts tracked

5,472Verified emails

1,618Mobile numbers

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The 25 largest edge computing security companies based in the United Kingdom

Ranked by team size

Top 25 of 149 edge computing 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	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	Quorum Cyber	Edinburgh	201-500	292	177
5	Cipher سايڤر	London	201-500	135	50
6	Khipu Networks	Fleet	51-200	129	94
7	Foresite Cybersecurity	Farnborough	51-200	100	67
8	Telesoft	Blandford	51-200	68	19
9	Eset UK	Bournemouth	51-200	66	41
10	Garrison NOW A Part Of Everfox	London	51-200	59	2
11	Attivo Networks , A Sentinelone Company	Cambridge	1,001-5,000	57	21
12	Coretech Security	Cheltenham	51-200	41	7
13	Syxsense, An Absolute Security Company	Basingstoke	51-200	37	23
14	FLOW	Hemel Hempstead	11-50	33	19
15	Dnssense	London	51-200	30	14
16	Mindtech Services	London	51-200	26	3
17	Encode	London	51-200	25	9
18	Valarian	London	11-50	24	12
19	4secure LTD	Northampton	11-50	22	13
20	Giraffe Cctv	Barnstaple	11-50	21	1
21	Clearswift	Berkshire	201-500	19	4
22	Hexiosec	Cheltenham	11-50	18	11
23	Infosec K2k	London	51-200	17	8
24	CST Limited Computer Security Technology	London	11-50	17	2
25	Cyberhive	Newbury	11-50	16	11

Showing 25 of 149 edge computing security companies based in the United Kingdom

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Edge computing security companies based in the United Kingdom at a glance

As of Aug 28, 2026

11-50Median size (employees)

LondonLargest hub · 50 HQs

1,618Contacts with mobile numbers

12Emails 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

Edge computing security companies by metro

Metro	Companies
Edge computing security companies in London	50
Edge computing security companies in Manchester	5
Edge computing security companies in Cambridge	4
Edge computing security companies in Cheltenham	4
Edge computing security companies in Leicester	3
Edge computing security companies in Northampton	3
Edge computing security companies in Bristol	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 “edge computing 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; 12 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 edge computing security companies are there based in the United Kingdom?

There are 149 edge computing security 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 edge computing security companies?

London leads with 50 headquartered companies, followed by Manchester (5) and Cambridge (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 5,472 verified decision-maker contacts tracked across these 149 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.