Company lists · Data verified August 2026

Top 25 Data as a service companies based in London, United Kingdom

Name: Data as a service companies based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 74 companies tracked

There are 74 data as a service companies headquartered in London, United Kingdom (RevenueBase, August 2026). RevenueBase tracks 2,118 professional contacts across them, including 361 with verified work emails and 133 with mobile numbers. London is the largest hub.

This list covers data as a service companies headquartered in London, 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.

74Companies

2,118Contacts tracked

361Verified emails

133Mobile numbers

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The 25 largest data as a service companies based in London, United Kingdom

Ranked by team size

Top 25 of 74 data as a service companies based in London, 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	Mobius Knowledge Services	London	501-1,000	1,434	60
2	Yellowbrick Data	London	201-500	108	75
	RevenueBasePublisher of this directory	Boston, MA	n/a	n/a	Try free
3	Xiatech	London	51-200	93	46
4	Elevondata	London	51-200	52	38
5	Ometis Limited	London	11-50	39	33
6	Chisl Group	London	11-50	33	25
7	Engine AI	London	11-50	27	16
8	Thinkdata Works	London	51-200	14	7
9	DOT Group	London	11-50	13	11
10	1digit	London	11-50	12	4
11	BIG	London	11-50	10	1
12	Datore	London	1-10	9	7
13	Fusionexperience LTD	London	1-10	9	2
14	Onmodus	London	1-10	8	6
15	Doorda	London	11-50	7	5
16	Incited	London	11-50	5	4
17	Datazone	London	1-10	5	3
18	redefine.io	London	1-10	3	2
19	Datametric	London	1-10	3	1
20	acquisition.ai	London	1-10	2	2
21	Metricsdriven	London	1-10	2	2
22	Dataru	London	11-50	2	1
23	Furivatics	London	1-10	2	1
24	Saish Infotech LTD	London	1-10	2	1
25	Chartica	London	1-10	1	1

Showing 25 of 74 data as a service companies based in London, United Kingdom

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Data as a service companies based in London, United Kingdom at a glance

As of Aug 28, 2026

1-10Median size (employees)

LondonLargest hub · 74 HQs

133Contacts with mobile numbers

2Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

Data as a service companies by metro in the United Kingdom

Metro	Companies
Data as a service companies in London	74
Data as a service companies in Leeds	4
Data as a service companies in Birmingham	3
Data as a service companies in Manchester	3
Data as a service companies in Bristol	3
Data as a service companies in Milton Keynes	3
Data as a service companies in Bracknell	2

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 “data as a service companies”, with match quality audited by blind human judging, and headquartered in London, 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; 2 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 data as a service companies are there based in London, United Kingdom?

There are 74 data as a service companies headquartered in London, United Kingdom as of August 2026 (RevenueBase).

What is the largest company on this list?

Mobius Knowledge Services, headquartered in London, tops this list with the largest team on record.

Which city has the most data as a service companies?

London leads with 74 headquartered companies, followed by Leeds (4) and Birmingham (3).

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 361 verified decision-maker contacts tracked across these 74 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.