Company lists · Data verified August 2026

Top 25 Cyber security services for utilities based in the United Kingdom

Name: Cyber security services for utilities 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 241 companies tracked

There are 241 cyber security services for utilities headquartered in the United Kingdom (RevenueBase, August 2026). RevenueBase tracks 4,274 professional contacts across them, including 1,019 with verified work emails and 614 with mobile numbers. London is the largest hub.

This list covers cyber security services for utilities 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.

241Companies

4,274Contacts tracked

1,019Verified emails

614Mobile numbers

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The 25 largest cyber security services for utilities based in the United Kingdom

Ranked by team size

Top 25 of 241 cyber security services for utilities 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	Everfox	London	1,001-5,000	635	13
2	Bridewell	Edinburgh	201-500	304	189
3	Sapphire	Newcastle Upon Tyne	51-200	165	59
4	Cyberfort	Thatcham	51-200	160	88
5	ITC Secure	London	51-200	87	39
6	Reliance Cyber	Waterloo	51-200	80	47
7	RHI Industrials LTD	Carlisle	51-200	71	43
8	Hexegic	London	51-200	52	30
9	Adarma Security	Edinburgh	201-500	52	23
10	Satisnet, A Gamma Company	Luton	51-200	46	8
11	Mitigo Group	Cheadle	51-200	42	18
12	Jumpsec	London	51-200	35	16
13	Secarma LTD	Manchester	11-50	34	23
14	Barrier Networks	London	11-50	33	22
15	Razorsecure	Basingstoke	11-50	32	26
16	defense.com	Stevenage	51-200	32	13
17	Aristi	Birmingham	11-50	32	10
18	Torrid Networks Limited	London	51-200	32	2
19	Procheckup PCU	Portsmouth	11-50	30	18
20	Cyber Rescue Alliance	London	11-50	29	9
21	Tmc3	Headquarters	11-50	28	16
22	Tekgem	Sedgefield	11-50	26	10
23	Beyond Blue Limited	London	11-50	26	2
24	Redfox Cybersecurity	London	11-50	24	6
25	Blue Cube Security LTD	East Grinstead	11-50	23	15

Showing 25 of 241 cyber security services for utilities based in the United Kingdom

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Cyber security services for utilities based in the United Kingdom at a glance

As of Aug 28, 2026

1-10Median size (employees)

LondonLargest hub · 98 HQs

614Contacts with mobile numbers

1Emails re-verified in last 30 days

Companies by employee count

1-10

133

11-50

51-200

201-500

501-1,000

1,001-5,000

10001+

Cyber security services for utilities by metro

Metro	Companies
Cyber security services for utilities in London	98
Cyber security services for utilities in Manchester	10
Cyber security services for utilities in Birmingham	4
Cyber security services for utilities in Glasgow	4
Cyber security services for utilities in Newcastle Upon Tyne	4
Cyber security services for utilities in Cheltenham	4
Cyber security services for utilities in Royal Leamington Spa	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 “cyber security services for utilities”, 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; 1 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 cyber security services for utilities are there based in the United Kingdom?

There are 241 cyber security services for utilities headquartered in the United Kingdom as of August 2026 (RevenueBase).

What is the largest company on this list?

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

Which city has the most cyber security services for utilities?

London leads with 98 headquartered companies, followed by Manchester (10) and Birmingham (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 1,019 verified decision-maker contacts tracked across these 241 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.