Company lists · Data verified August 2026

Top 25 Digital transformation consulting firms based in the United Kingdom

Name: Digital transformation 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 6,680 companies tracked

There are 6,680 digital transformation consulting firms headquartered in the United Kingdom (RevenueBase, August 2026). RevenueBase tracks 450,384 professional contacts across them, including 113,694 with verified work emails and 31,778 with mobile numbers. London is the largest hub.

This list covers digital transformation 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.

6,680Companies

450,384Contacts tracked

113,694Verified emails

31,778Mobile numbers

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The 25 largest digital transformation consulting firms based in the United Kingdom

Ranked by team size

Top 25 of 6,680 digital transformation 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	Tech Mahindra	Milton Keynes	10001+	138,625	21,414
2	WNS	London	10001+	46,619	10,039
3	Mphasis	London	10001+	43,740	6,968
4	Sopra Steria	Edinburgh	10001+	37,387	16,784
5	Persistent Systems	Chertsey	10001+	27,186	10,549
6	REPLY	London	10001+	3,778	1,344
7	Andersen LAB	London	1,001-5,000	3,609	1,152
8	Williams LEA	London	10001+	3,281	1,239
9	Ensono	Staines-Upon-Thames	1,001-5,000	3,246	1,963
10	Version 1	Newcastle Upon Tyne	1,001-5,000	3,198	1,990
11	Kaartech	Huddersfield	1,001-5,000	2,519	691
12	Gspann Technologies, INC	London	1,001-5,000	1,874	754
13	Sword Group	Aberdeen	1,001-5,000	1,747	982
14	Zühlke Group	London	1,001-5,000	1,580	909
15	BBD	London	1,001-5,000	1,220	485
16	Genisys Group	London	1,001-5,000	1,146	67
17	And Digital	London	1,001-5,000	1,048	487
18	BORN	London	1,001-5,000	1,035	222
19	Miratech	London	1,001-5,000	982	352
20	Advania UK	London	1,001-5,000	905	5
21	Sada, An Insight Company	Poole	10001+	872	139
22	Cognizant Life Sciences Manufacturing	Warrington	1,001-5,000	681	409
23	Agilisys	London	1,001-5,000	652	154
24	BIP Brasil	Londres	1,001-5,000	615	4
25	LS Digital Group	London	1,001-5,000	586	224

Showing 25 of 6,680 digital transformation consulting firms based in the United Kingdom

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Digital transformation consulting firms based in the United Kingdom at a glance

As of Aug 28, 2026

1-10Median size (employees)

LondonLargest hub · 3171 HQs

31,778Contacts with mobile numbers

182Emails re-verified in last 30 days

Companies by employee count

1-10

4,255

11-50

1,597

51-200

544

201-500

122

501-1,000

1,001-5,000

10001+

Digital transformation consulting firms by metro

Metro	Companies
Digital transformation consulting firms in London	3171
Digital transformation consulting firms in Manchester	197
Digital transformation consulting firms in Birmingham	100
Digital transformation consulting firms in Leeds	96
Digital transformation consulting firms in Bristol	82
Digital transformation consulting firms in Glasgow	80
Digital transformation consulting firms in Edinburgh	79

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 “digital transformation 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; 182 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 digital transformation consulting firms are there based in the United Kingdom?

There are 6,680 digital transformation consulting firms headquartered in the United Kingdom as of August 2026 (RevenueBase).

What is the largest company on this list?

Tech Mahindra, headquartered in Milton Keynes, tops this list with the largest team on record.

Which city has the most digital transformation consulting firms?

London leads with 3171 headquartered companies, followed by Manchester (197) and Birmingham (100).

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 113,694 verified decision-maker contacts tracked across these 6,680 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.