Company lists · Data verified August 2026

Top 25 Enterprise cloud transformation firms based in the United Kingdom

Name: Enterprise cloud transformation 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 4,721 companies tracked

There are 4,721 enterprise cloud transformation firms headquartered in the United Kingdom (RevenueBase, August 2026). RevenueBase tracks 438,977 professional contacts across them, including 115,586 with verified work emails and 30,797 with mobile numbers. London is the largest hub.

This list covers enterprise cloud transformation 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.

4,721Companies

438,977Contacts tracked

115,586Verified emails

30,797Mobile numbers

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The 25 largest enterprise cloud transformation firms based in the United Kingdom

Ranked by team size

Top 25 of 4,721 enterprise cloud transformation 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	Mphasis	London	10001+	43,740	6,968
3	Amdocs	London	10001+	39,818	15,717
4	Sopra Steria	Edinburgh	10001+	37,387	16,784
5	Persistent Systems	Chertsey	10001+	27,186	10,549
6	IGT Solutions	London	10001+	14,674	1,480
7	Williams LEA	London	10001+	3,281	1,239
8	Ensono	Staines-Upon-Thames	1,001-5,000	3,246	1,963
9	Version 1	Newcastle Upon Tyne	1,001-5,000	3,198	1,990
10	Softcat	Whiteley	1,001-5,000	2,873	928
11	Kaartech	Huddersfield	1,001-5,000	2,519	691
12	Pax8	Bristol	1,001-5,000	1,877	1,210
13	Gspann Technologies, INC	London	1,001-5,000	1,874	754
14	Sword Group	Aberdeen	1,001-5,000	1,747	982
15	Zühlke Group	London	1,001-5,000	1,580	909
16	BBD	London	1,001-5,000	1,220	485
17	Genisys Group	London	1,001-5,000	1,146	67
18	Miratech	London	1,001-5,000	982	352
19	Advania UK	London	1,001-5,000	905	5
20	Sada, An Insight Company	Poole	10001+	872	139
21	KINLY	Perth	1,001-5,000	830	599
22	Claranet	Warrington	1,001-5,000	816	1
23	Agilisys	London	1,001-5,000	652	154
24	Node4	London	1,001-5,000	624	480
25	Internet Initiative Japan IIJ	London	1,001-5,000	540	179

Showing 25 of 4,721 enterprise cloud transformation firms based in the United Kingdom

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Enterprise cloud transformation firms based in the United Kingdom at a glance

As of Aug 28, 2026

1-10Median size (employees)

LondonLargest hub · 2176 HQs

30,797Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

2,606

11-50

1,325

51-200

503

201-500

120

501-1,000

1,001-5,000

10001+

Enterprise cloud transformation firms by metro

Metro	Companies
Enterprise cloud transformation firms in London	2176
Enterprise cloud transformation firms in Manchester	139
Enterprise cloud transformation firms in Leeds	65
Enterprise cloud transformation firms in Birmingham	63
Enterprise cloud transformation firms in Bristol	55
Enterprise cloud transformation firms in Reading	52
Enterprise cloud transformation firms in Glasgow	48

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 “enterprise cloud transformation 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; 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 enterprise cloud transformation firms are there based in the United Kingdom?

There are 4,721 enterprise cloud transformation 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 enterprise cloud transformation firms?

London leads with 2176 headquartered companies, followed by Manchester (139) and Leeds (65).

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 115,586 verified decision-maker contacts tracked across these 4,721 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.