Company lists · Data verified August 2026

Top 25 B2B contact database companies based in the United Kingdom

Name: B2B contact database 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 276 companies tracked

There are 276 B2B contact database companies headquartered in the United Kingdom (RevenueBase, August 2026). RevenueBase tracks 3,191 professional contacts across them, including 638 with verified work emails and 133 with mobile numbers. London is the largest hub.

This list covers B2B contact database 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.

276Companies

3,191Contacts tracked

638Verified emails

133Mobile numbers

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The 25 largest B2B contact database companies based in the United Kingdom

Ranked by team size

Top 25 of 276 B2B contact database 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	Qualifa	Brighton	51-200	440	2
2	Vereigen Media	London	201-500	302	38
	RevenueBasePublisher of this directory	Boston, MA	n/a	n/a	Try free
3	AIR Marketing	Exeter	51-200	123	47
4	GCL	Birmingham	51-200	120	18
5	Durhamlane	Newcastle Upon Tyne	51-200	114	74
6	Marathon B2B	London	51-200	52	1
7	Advance Connects	London	51-200	45	20
8	Broadley Speaking	Tavistock	11-50	45	12
9	Beanstalk Marketing	Birmingham	11-50	43	33
10	EI Global B2B Marketing Intelligence	London	11-50	42	17
11	Think Pipeline LTD	Woking	51-200	38	2
12	Paceops	Cambridge	11-50	36	20
13	Market Location	Sutton Coldfield	51-200	35	12
14	1 Stop Data LTD	Northern	51-200	35	3
15	Fusion Integration	Bracknell	11-50	35	2
16	Corpdata LTD	Teignmouth	51-200	34	6
17	XSELL	Antrim	11-50	29	14
18	The Lead Generation Company	Manchester Manchester	11-50	28	10
19	Headley Media	Esher	11-50	24	18
20	Custom Intelligence	London	11-50	23	2
21	Fuzeiq	n/a	11-50	19	1
22	Acquirz	Cheltenham	11-50	18	14
23	Newton FOX	Bolton	11-50	16	10
24	Merrehill	Macclesfield	11-50	13	9
25	The Data Business	Canterbury	51-200	12	10

Showing 25 of 276 B2B contact database companies based in the United Kingdom

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B2B contact database companies based in the United Kingdom at a glance

As of Aug 28, 2026

11-50Median size (employees)

LondonLargest hub · 88 HQs

133Contacts with mobile numbers

8Emails re-verified in last 30 days

Companies by employee count

1-10

130

11-50

105

51-200

201-500

501-1,000

1,001-5,000

B2B contact database companies by metro

Metro	Companies
B2B contact database companies in London	88
B2B contact database companies in Manchester	10
B2B contact database companies in Bournemouth	5
B2B contact database companies in Birmingham	4
B2B contact database companies in Cambridge	3
B2B contact database companies in Camberley	3
B2B contact database companies in Glasgow	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 “B2B contact database 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; 8 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 B2B contact database companies are there based in the United Kingdom?

There are 276 B2B contact database companies headquartered in the United Kingdom as of August 2026 (RevenueBase).

What is the largest company on this list?

Qualifa, headquartered in Brighton, tops this list with the largest team on record.

Which city has the most B2B contact database companies?

London leads with 88 headquartered companies, followed by Manchester (10) and Bournemouth (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 638 verified decision-maker contacts tracked across these 276 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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Related lists

B2B contact database companies by geography

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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.