Company lists · Data verified August 2026

Top 25 Cloud transformation companies based in the United Kingdom

Name: Cloud transformation 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 820 companies tracked

There are 820 cloud transformation companies headquartered in the United Kingdom (RevenueBase, August 2026). RevenueBase tracks 46,507 professional contacts across them, including 9,671 with verified work emails and 2,673 with mobile numbers. London is the largest hub.

This list covers cloud transformation 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.

820Companies

46,507Contacts tracked

9,671Verified emails

2,673Mobile numbers

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The 25 largest cloud transformation companies based in the United Kingdom

Ranked by team size

Top 25 of 820 cloud transformation 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	Ensono	Staines-Upon-Thames	1,001-5,000	3,246	1,963
2	BBD	London	1,001-5,000	1,220	485
3	Indus NET Technologies INT	London	501-1,000	1,065	259
4	Bytes Software Services	Portsmouth	501-1,000	784	523
5	Sourcefuse	London	501-1,000	669	288
6	Ahana Systems And Solutions Pvt. LTD	London	501-1,000	645	183
7	Node4	London	1,001-5,000	624	480
8	Devoteam Google Cloud Partner	London	501-1,000	546	130
9	Acuvate	London	201-500	541	258
10	Iomart	Glasgow	201-500	422	200
11	ACORA	Tufton Warren	501-1,000	421	302
12	Excelencia	London	201-500	377	122
13	Qvest Global	London	1,001-5,000	356	102
14	Winfo Solutions	London	201-500	355	163
15	KOCHO	London	201-500	299	189
16	Transparity	London	201-500	296	182
17	Armakuni	London	201-500	264	160
18	Proact IT Group AB	Leeds	1,001-5,000	224	79
19	The Missing Link	London	201-500	216	150
20	Digital Space	Newark	201-500	201	115
21	ENXOO	London	201-500	175	132
22	Creative ITC	London	201-500	175	99
23	CSI LTD A CSI Group Company	London	201-500	161	116
24	Contino, A Cognizant Company	n/a	201-500	159	48
25	NTT Ltd. Cloud	London	201-500	112	58

Showing 25 of 820 cloud transformation companies based in the United Kingdom

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Cloud transformation companies based in the United Kingdom at a glance

As of Aug 28, 2026

1-10Median size (employees)

LondonLargest hub · 348 HQs

2,673Contacts with mobile numbers

41Emails re-verified in last 30 days

Companies by employee count

1-10

420

11-50

257

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

Cloud transformation companies by metro

Metro	Companies
Cloud transformation companies in London	348
Cloud transformation companies in Manchester	32
Cloud transformation companies in Glasgow	10
Cloud transformation companies in Leeds	10
Cloud transformation companies in Birmingham	10
Cloud transformation companies in Reading	10
Cloud transformation companies in Bristol	9

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 “cloud transformation 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; 41 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 cloud transformation companies are there based in the United Kingdom?

There are 820 cloud transformation companies headquartered in the United Kingdom as of August 2026 (RevenueBase).

What is the largest company on this list?

Ensono, headquartered in Staines-Upon-Thames, tops this list with the largest team on record.

Which city has the most cloud transformation companies?

London leads with 348 headquartered companies, followed by Manchester (32) and Glasgow (10).

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 820 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.