Company lists · Data verified August 2026

Top 25 Compliance consulting firms based in the United Kingdom

Name: Compliance consulting firms 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 851 companies tracked

There are 851 compliance consulting firms headquartered in the United Kingdom (RevenueBase, August 2026). RevenueBase tracks 5,253 professional contacts across them, including 1,910 with verified work emails and 327 with mobile numbers. London is the largest hub.

This list covers compliance consulting firms 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.

851Companies

5,253Contacts tracked

1,910Verified emails

327Mobile numbers

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The 25 largest compliance consulting firms based in the United Kingdom

Ranked by team size

Top 25 of 851 compliance consulting firms 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	The Citation Group	Wilmslow	1,001-5,000	292	1
2	Wilmington PLC	Cardiff	501-1,000	243	97
3	TCC Group	n/a	51-200	141	43
4	Trpglobal	London	51-200	123	36
5	Veriforce Chas	Morden	51-200	100	39
6	Sovos Emea	Farnborough	1,001-5,000	98	64
7	AEC	Rainham	51-200	98	44
8	Idenfo	Norwich	51-200	89	13
9	ARK Workplace Risk	London	51-200	81	4
10	Assurity Consulting LTD	Horsham	51-200	77	51
11	Wirehouse Employer Services	Warrington	51-200	76	29
12	Thistle Initiatives	London	51-200	74	44
13	FSCOM	Belfast	51-200	69	38
14	Waystone Compliance Solutions	London	1,001-5,000	68	51
15	Cosegic	London	51-200	66	51
16	Wrangu	London	51-200	58	42
17	Goodcorporation	London	11-50	54	36
18	Threesixty Services	Manchester	51-200	44	33
19	Paradigm Consulting	Wilmslow	51-200	42	24
20	Lysis Group	London	51-200	38	18
21	Complyport	London	51-200	36	5
22	Broadgate	London	51-200	31	19
23	Verita	Leeds	11-50	28	6
24	Bowmen Group	London	11-50	25	20
25	KBM Group	London	51-200	25	1

Showing 25 of 851 compliance consulting firms based in the United Kingdom

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Compliance consulting firms based in the United Kingdom at a glance

As of Aug 28, 2026

1-10Median size (employees)

LondonLargest hub · 275 HQs

327Contacts with mobile numbers

11Emails re-verified in last 30 days

Companies by employee count

1-10

656

11-50

136

51-200

201-500

501-1,000

1,001-5,000

Compliance consulting firms by metro

Metro	Companies
Compliance consulting firms in London	275
Compliance consulting firms in Manchester	32
Compliance consulting firms in Leeds	14
Compliance consulting firms in Birmingham	11
Compliance consulting firms in Edinburgh	10
Compliance consulting firms in Bristol	8
Compliance consulting firms in Glasgow	7

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 “compliance consulting firms”, 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; 11 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 compliance consulting firms are there based in the United Kingdom?

There are 851 compliance consulting firms headquartered in the United Kingdom as of August 2026 (RevenueBase).

What is the largest company on this list?

The Citation Group, headquartered in Wilmslow, tops this list with the largest team on record.

Which city has the most compliance consulting firms?

London leads with 275 headquartered companies, followed by Manchester (32) and Leeds (14).

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 1,910 verified decision-maker contacts tracked across these 851 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.