Company lists · Data verified August 2026

Top 25 Armed security guard companies based in London, United Kingdom

Name: Armed security guard companies based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 450 companies tracked

There are 450 armed security guard companies headquartered in London, United Kingdom (RevenueBase, August 2026). RevenueBase tracks 5,772 professional contacts across them, including 521 with verified work emails and 155 with mobile numbers. London is the largest hub.

This list covers armed security guard companies headquartered in London, 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.

450Companies

5,772Contacts tracked

521Verified emails

155Mobile numbers

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The 25 largest armed security guard companies based in London, United Kingdom

Ranked by team size

Top 25 of 450 armed security guard companies based in London, 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	Wise Security Services LTD	London	501-1,000	204	7
3	Vigilant Security	London	1,001-5,000	133	23
4	Rossi Security	London	201-500	99	5
5	Servoca Secure Solutions Limited	London	51-200	85	4
6	KK Security & FM LTD	London	201-500	71	6
7	Vigilance Certified B Corp	London	201-500	64	14
8	City Security Services Part Of City Group Security	London	201-500	64	1
9	Black Diamond Security	London	201-500	62	14
10	Ak9 Security And FM Solutions LTD	London	501-1,000	43	9
11	Pathway Risk Management	London	51-200	39	3
12	Cerberus Security	London	201-500	32	4
13	Accolade	London	201-500	30	5
14	W4g Fire & Security	London	51-200	28	11
15	M4 Security Group Limited	London	51-200	21	2
16	Samaritan Protective Services	London	51-200	17	2
17	Line Security Services LTD	London	51-200	16	2
18	SSG Support Services Group LTD	London	201-500	15	4
19	Inline Risk Solutions LTD	London	51-200	14	4
20	Jaguar Security LTD	London	1,001-5,000	14	1
21	Woodwill Security Services	London	51-200	12	3
22	Intraguard Limited	London	51-200	12	1
23	Spartan Elite Security	London	51-200	11	2
24	SSG Security	London	51-200	10	1
25	Vortex Guarding LTD	London	51-200	8	1

Showing 25 of 450 armed security guard companies based in London, United Kingdom

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Armed security guard companies based in London, United Kingdom at a glance

As of Aug 28, 2026

11-50Median size (employees)

LondonLargest hub · 450 HQs

155Contacts with mobile numbers

8Emails re-verified in last 30 days

Companies by employee count

1-10

134

11-50

147

51-200

114

201-500

501-1,000

1,001-5,000

10001+

Armed security guard companies by metro in the United Kingdom

Metro	Companies
Armed security guard companies in London	450
Armed security guard companies in Manchester	53
Armed security guard companies in Birmingham	46
Armed security guard companies in Leeds	28
Armed security guard companies in Liverpool	18
Armed security guard companies in Glasgow	17
Armed security guard companies in Luton	16

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 “armed security guard companies”, with match quality audited by blind human judging, and headquartered in London, 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; 8 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 armed security guard companies are there based in London, United Kingdom?

There are 450 armed security guard companies headquartered in London, 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 armed security guard companies?

London leads with 450 headquartered companies, followed by Manchester (53) and Birmingham (46).

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 521 verified decision-maker contacts tracked across these 450 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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Related lists

Armed security guard companies 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.