Company lists · Data verified August 2026

Top 25 Cloud data services based in the United Kingdom

Name: Cloud data services 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 264 companies tracked

There are 264 cloud data services headquartered in the United Kingdom (RevenueBase, August 2026). RevenueBase tracks 10,346 professional contacts across them, including 2,466 with verified work emails and 1,163 with mobile numbers. London is the largest hub.

This list covers cloud data services 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.

264Companies

10,346Contacts tracked

2,466Verified emails

1,163Mobile numbers

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The 25 largest cloud data services based in the United Kingdom

Ranked by team size

Top 25 of 264 cloud data services 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	Ovhcloud	London	1,001-5,000	3,039	3
2	Mobius Knowledge Services	London	501-1,000	1,434	60
3	Couchbase	Manchester	501-1,000	909	472
4	AB Initio Software	Weybridge	501-1,000	813	539
5	Iomart	Glasgow	201-500	422	200
6	Procode	Chandlers Ford	201-500	186	3
7	CTERA	London	51-200	176	137
8	Aker Systems	Bicester	51-200	113	78
9	NTT Ltd. Cloud	London	201-500	112	58
10	Calligo	Leicester	201-500	111	68
11	Yellowbrick Data	London	201-500	108	75
12	Xiatech	London	51-200	93	46
13	Groupbwt	London	51-200	92	7
14	Solidatus	London	51-200	77	49
15	Intersystems UKI	Windsor	51-200	65	45
16	Seriös Group	Newcastle Upon Tyne	51-200	64	45
17	Tekcor4	London	51-200	61	45
18	Iland 11 11 Systems	Ascot	1,001-5,000	59	20
19	Ovation Data	Cray	51-200	55	16
20	Elevondata	London	51-200	52	38
21	Hurree	Belfast	11-50	43	22
22	ETL	Menai	11-50	42	8
23	Chisl Group	London	11-50	33	25
24	kleene.ai	London London	51-200	30	17
25	Astrato Analytics	London	11-50	29	15

Showing 25 of 264 cloud data services based in the United Kingdom

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Cloud data services based in the United Kingdom at a glance

As of Aug 28, 2026

1-10Median size (employees)

LondonLargest hub · 126 HQs

1,163Contacts with mobile numbers

15Emails re-verified in last 30 days

Companies by employee count

1-10

152

11-50

51-200

201-500

501-1,000

1,001-5,000

Cloud data services by metro

Metro	Companies
Cloud data services in London	126
Cloud data services in Manchester	6
Cloud data services in Glasgow	5
Cloud data services in Leeds	5
Cloud data services in Milton Keynes	4
Cloud data services in Bournemouth	3
Cloud data services in Bristol	3

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 data services”, 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; 15 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 data services are there based in the United Kingdom?

There are 264 cloud data services headquartered in the United Kingdom as of August 2026 (RevenueBase).

What is the largest company on this list?

Ovhcloud, headquartered in London, tops this list with the largest team on record.

Which city has the most cloud data services?

London leads with 126 headquartered companies, followed by Manchester (6) and Glasgow (5).

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 2,466 verified decision-maker contacts tracked across these 264 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.