Company lists · Data verified August 2026

Top 12 Data marketplace platforms based in the United Kingdom

Name: Data marketplace platforms 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 26 companies tracked

There are 26 data marketplace platforms headquartered in the United Kingdom (RevenueBase, August 2026). RevenueBase tracks 357 professional contacts across them, including 201 with verified work emails and 48 with mobile numbers. London is the largest hub.

This list covers data marketplace platforms 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.

26Companies

357Contacts tracked

201Verified emails

48Mobile numbers

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The 12 largest data marketplace platforms based in the United Kingdom

Ranked by team size

Top 12 of 26 data marketplace platforms 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	Calligo	Leicester	201-500	111	68
2	Harbr Data	London	51-200	42	23
3	Omnisient	London	51-200	38	27
4	Leadscale Group	London	11-50	35	30
5	kleene.ai	London London	51-200	30	17
6	Gener8	London	11-50	23	20
7	Fusionexperience LTD	London	1-10	9	2
8	Digi.Me	London	11-50	8	4
9	Doorda	London	11-50	7	5
10	GEODB	Londres Inglaterra	11-50	7	2
11	The Data Exchange	Caernarfon	11-50	4	1
12	ddaas.com	London	1-10	4	1

Showing 12 of 26 data marketplace platforms based in the United Kingdom

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Data marketplace platforms based in the United Kingdom at a glance

As of Aug 28, 2026

11-50Median size (employees)

LondonLargest hub · 18 HQs

48Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

201-500

Data marketplace platforms by metro

Metro	Companies
Data marketplace platforms in London	18
Data marketplace platforms in Cambridge	1
Data marketplace platforms in Londres Inglaterra	1
Data marketplace platforms in Manchester	1
Data marketplace platforms in Birmingham	1
Data marketplace platforms in London London	1
Data marketplace platforms in Caernarfon	1
Data marketplace platforms in Blackfriars	1

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 marketplace platforms”, 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 data marketplace platforms are there based in the United Kingdom?

There are 26 data marketplace platforms headquartered in the United Kingdom as of August 2026 (RevenueBase).

What is the largest company on this list?

Calligo, headquartered in Leicester, tops this list with the largest team on record.

Which city has the most data marketplace platforms?

London leads with 18 headquartered companies, followed by Cambridge (1) and Londres Inglaterra (1).

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 201 verified decision-maker contacts tracked across these 26 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.