Company lists · Data verified August 2026

Top 25 Event security companies based in the United Kingdom

Name: Event 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 609 companies tracked

There are 609 event security companies headquartered in the United Kingdom (RevenueBase, August 2026). RevenueBase tracks 15,019 professional contacts across them, including 845 with verified work emails and 2,051 with mobile numbers. London is the largest hub.

This list covers event 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.

609Companies

15,019Contacts tracked

845Verified emails

2,051Mobile numbers

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The 25 largest event security companies based in the United Kingdom

Ranked by team size

Top 25 of 609 event 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	Showsec	Aberdeen	1,001-5,000	1,270	94
2	Securigroup	n/a	1,001-5,000	761	131
3	FGH Security	Manchester	1,001-5,000	650	49
4	CSP LTD	Watford	1,001-5,000	324	31
5	SES Group	Manchester	1,001-5,000	280	38
6	Wise Security Services LTD	London	501-1,000	204	7
7	Eventsec	Belfast	1,001-5,000	144	6
8	Stadium	Coventry	201-500	136	12
9	SGC Security Services	Sible Hedingham	501-1,000	136	9
10	The Gallowglass Group	London	501-1,000	135	26
11	Vespasian Security	Portsmouth	201-500	125	10
12	Security Scotland LTD	Glasgow	201-500	115	10
13	Centre Circle Event Management	Higham	501-1,000	101	6
14	Achilleus Security & Stewarding	Waltham Abbey	201-500	99	6
15	K4 Security - K4 Group	Manchester	201-500	90	8
16	Assured Crowd Safety	Manchester	201-500	71	12
17	KK Security & FM LTD	London	201-500	71	6
18	Provide Security	Winnersh Reading	501-1,000	69	9
19	Specialized Security	Livingston	501-1,000	64	7
20	Controlled Space Limited	Leeds	201-500	54	4
21	Right Guard Security	Canterbury	201-500	50	6
22	Mckenzie Arnold Group LTD	Faulkbourne	1,001-5,000	49	4
23	NEW Concept Security	Blackpool	201-500	44	6
24	AIB Group	Park Bletchley	201-500	43	10
25	Alpha Omega Securities LTD	Crewe	201-500	40	15

Showing 25 of 609 event security companies based in the United Kingdom

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Event security companies based in the United Kingdom at a glance

As of Aug 28, 2026

11-50Median size (employees)

LondonLargest hub · 133 HQs

2,051Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

197

11-50

156

51-200

159

201-500

501-1,000

1,001-5,000

10001+

Event security companies by metro

Metro	Companies
Event security companies in London	133
Event security companies in Manchester	19
Event security companies in Birmingham	12
Event security companies in Leeds	11
Event security companies in Bristol	10
Event security companies in Glasgow	8
Event security companies in Luton	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 “event 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; 0 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 event security companies are there based in the United Kingdom?

There are 609 event security companies headquartered in the United Kingdom as of August 2026 (RevenueBase).

What is the largest company on this list?

Showsec, headquartered in Aberdeen, tops this list with the largest team on record.

Which city has the most event security companies?

London leads with 133 headquartered companies, followed by Manchester (19) and Birmingham (12).

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 845 verified decision-maker contacts tracked across these 609 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.