Company lists · Data verified August 2026

Top 25 Change management consulting firms based in the United Kingdom

Name: Change management 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 5,466 companies tracked

There are 5,466 change management consulting firms headquartered in the United Kingdom (RevenueBase, August 2026). RevenueBase tracks 32,428 professional contacts across them, including 9,671 with verified work emails and 2,838 with mobile numbers. London is the largest hub.

This list covers change management 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.

5,466Companies

32,428Contacts tracked

9,671Verified emails

2,838Mobile numbers

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The 25 largest change management consulting firms based in the United Kingdom

Ranked by team size

Top 25 of 5,466 change management 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	Leader Investment Group - LIG	London	501-1,000	452	42
2	Q5	Leeds	501-1,000	340	233
3	Gate ONE	n/a	201-500	288	191
4	H&z Management Consulting	London	501-1,000	287	153
5	Elixirr	London	501-1,000	271	193
6	Moorhouse B Corp Certified	London	201-500	249	148
7	Albany Beck	London	201-500	236	146
8	Protiviti UK	Milton Keynes	201-500	205	69
9	TSK Group	London	51-200	194	80
10	EIDRA	London	1,001-5,000	182	108
11	Cubematch	London	201-500	153	70
12	Liqueo	London	51-200	123	88
13	Hivemind Network	London	1,001-5,000	120	14
14	Axialent	London	201-500	117	58
15	Oaklin	London	51-200	115	92
16	VIM Group Team Farner	London	201-500	107	50
17	Valentia Partners	London	51-200	93	78
18	Project ONE	Uk	51-200	93	60
19	Intelligent Office UK	Alloa	501-1,000	93	22
20	Lynxeye	London	51-200	88	65
21	Oxford Leadership	London	201-500	88	48
22	Bridge Partnership	London	51-200	85	73
23	Embridge Consulting	Northfleet	51-200	77	56
24	Change Management Group	London	51-200	74	53
25	6point6 Part Of Accenture	London	201-500	73	29

Showing 25 of 5,466 change management consulting firms based in the United Kingdom

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Change management consulting firms based in the United Kingdom at a glance

As of Aug 28, 2026

1-10Median size (employees)

LondonLargest hub · 1882 HQs

2,838Contacts with mobile numbers

51Emails re-verified in last 30 days

Companies by employee count

1-10

4,360

11-50

734

51-200

159

201-500

501-1,000

1,001-5,000

10001+

Change management consulting firms by metro

Metro	Companies
Change management consulting firms in London	1882
Change management consulting firms in Manchester	122
Change management consulting firms in Bristol	86
Change management consulting firms in Edinburgh	64
Change management consulting firms in Leeds	59
Change management consulting firms in Glasgow	56
Change management consulting firms in Birmingham	53

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 “change management 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; 51 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 change management consulting firms are there based in the United Kingdom?

There are 5,466 change management consulting firms headquartered in the United Kingdom as of August 2026 (RevenueBase).

What is the largest company on this list?

Leader Investment Group - LIG, headquartered in London, tops this list with the largest team on record.

Which city has the most change management consulting firms?

London leads with 1882 headquartered companies, followed by Manchester (122) and Bristol (86).

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 9,671 verified decision-maker contacts tracked across these 5,466 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.