Company lists · Data verified August 2026

Top 25 Corporate security consultants based in the United Kingdom

Name: Corporate security consultants 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 858 companies tracked

There are 858 corporate security consultants headquartered in the United Kingdom (RevenueBase, August 2026). RevenueBase tracks 11,319 professional contacts across them, including 1,315 with verified work emails and 719 with mobile numbers. London is the largest hub.

This list covers corporate security consultants 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.

858Companies

11,319Contacts tracked

1,315Verified emails

719Mobile numbers

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The 25 largest corporate security consultants based in the United Kingdom

Ranked by team size

Top 25 of 858 corporate security consultants 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	CIS Security Limited	London	1,001-5,000	913	201
2	Ward Security	Bracknell	1,001-5,000	416	58
3	Pilgrims Risk Management Group	Woking	201-500	205	17
4	Bridgegate Security UK Limited	Leeds Leeds	1,001-5,000	179	1
5	The Brooknight Group	Milton Keynes	201-500	169	15
6	Kingdom Security Services	Newton-Le-Willows	5,001-10,000	124	18
7	Guardforce Security Limited	Hornchurch	501-1,000	111	7
8	Rossi Security	London	201-500	99	5
9	Croma Security Solutions Group PLC Cssg	Basingstoke Hamsphire	501-1,000	87	11
10	Knight Protection	Camberley	201-500	80	17
11	FAM International Security	Crayford	51-200	68	4
12	United Guarding Services LTD	n/a	201-500	63	6
13	Black Diamond Security	London	201-500	62	14
14	SQR Group Security Solutions LTD	Barnet	501-1,000	60	7
15	Cyberlab	Lincoln	51-200	56	41
16	Portal Security	Glasgow	201-500	52	18
17	Secur-It Integrated Services LTD	South Normanton	201-500	52	4
18	Risk Management Security Services	High Wycombe	51-200	46	10
19	UK Protection LTD	Clyst St Mary	201-500	44	14
20	Phoenix FMS	Newcastle Upon Tyne	201-500	44	2
21	Ak9 Security And FM Solutions LTD	London	501-1,000	43	9
22	Capcon Limited	Epsom	51-200	40	23
23	Doyle Security LTD	Barnsley	51-200	37	11
24	Prosec UK	Doncaster	51-200	32	4
25	Rock Security Solutions	n/a	51-200	29	7

Showing 25 of 858 corporate security consultants based in the United Kingdom

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Corporate security consultants based in the United Kingdom at a glance

As of Aug 28, 2026

11-50Median size (employees)

LondonLargest hub · 288 HQs

719Contacts with mobile numbers

4Emails re-verified in last 30 days

Companies by employee count

1-10

420

11-50

249

51-200

122

201-500

501-1,000

1,001-5,000

5,001-10,000

Corporate security consultants by metro

Metro	Companies
Corporate security consultants in London	288
Corporate security consultants in Manchester	14
Corporate security consultants in Birmingham	13
Corporate security consultants in Leeds	11
Corporate security consultants in Reading	9
Corporate security consultants in Liverpool	8
Corporate security consultants in Glasgow	8

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 “corporate security consultants”, 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 corporate security consultants are there based in the United Kingdom?

There are 858 corporate security consultants headquartered in the United Kingdom as of August 2026 (RevenueBase).

What is the largest company on this list?

CIS Security Limited, headquartered in London, tops this list with the largest team on record.

Which city has the most corporate security consultants?

London leads with 288 headquartered companies, followed by Manchester (14) and Birmingham (13).

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 1,315 verified decision-maker contacts tracked across these 858 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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Corporate security consultants by geography

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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.