Company lists · Data verified August 2026

Top 25 B2B lead generation companies based in the United Kingdom

Name: B2B lead generation 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 1,091 companies tracked

There are 1,091 B2B lead generation companies headquartered in the United Kingdom (RevenueBase, August 2026). RevenueBase tracks 10,946 professional contacts across them, including 2,179 with verified work emails and 581 with mobile numbers. London is the largest hub.

This list covers B2B lead generation 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.

1,091Companies

10,946Contacts tracked

2,179Verified emails

581Mobile numbers

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The 25 largest B2B lead generation companies based in the United Kingdom

Ranked by team size

Top 25 of 1,091 B2B lead generation 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	Digitalzone	London	501-1,000	557	137
2	Qualifa	Brighton	51-200	440	2
3	MVF	London	201-500	417	246
4	Vereigen Media	London	201-500	302	38
5	Astute.com	Bournemouth	201-500	265	38
6	The Telemarketing Company	Brighton	201-500	242	39
7	Quantum Marketing	Reading	51-200	198	1
8	BNZSA	London	201-500	195	6
9	Account Media	London	51-200	186	39
10	AIR Marketing	Exeter	51-200	123	47
11	GCL	Birmingham	51-200	120	18
12	Durhamlane	Newcastle Upon Tyne	51-200	114	74
13	Pursuit Marketing	Glasgow	51-200	96	8
14	Creative Media	Omagh	51-200	70	27
15	Excelerate360	Hitchin	51-200	65	19
16	Voicentric LTD	Durham	51-200	64	42
17	The Marketing Practice	London	501-1,000	52	30
18	Marathon B2B	London	51-200	52	1
19	Advance Connects	London	51-200	45	20
20	Matter	Leeds	51-200	39	19
21	Think Pipeline LTD	Woking	51-200	38	2
22	1 Stop Data LTD	Northern	51-200	35	3
23	Leadly	Manchester	51-200	34	14
24	Paragon Marketing Projects	Portsmouth	51-200	32	23
25	TELU	Leeds	51-200	32	6

Showing 25 of 1,091 B2B lead generation companies based in the United Kingdom

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B2B lead generation companies based in the United Kingdom at a glance

As of Aug 28, 2026

1-10Median size (employees)

LondonLargest hub · 376 HQs

581Contacts with mobile numbers

25Emails re-verified in last 30 days

Companies by employee count

1-10

701

11-50

297

51-200

201-500

501-1,000

B2B lead generation companies by metro

Metro	Companies
B2B lead generation companies in London	376
B2B lead generation companies in Manchester	65
B2B lead generation companies in Birmingham	25
B2B lead generation companies in Leeds	20
B2B lead generation companies in Bristol	14
B2B lead generation companies in Glasgow	14
B2B lead generation companies in Brighton	13

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 lead generation 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; 25 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 lead generation companies are there based in the United Kingdom?

There are 1,091 B2B lead generation companies headquartered in the United Kingdom as of August 2026 (RevenueBase).

What is the largest company on this list?

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

Which city has the most B2B lead generation companies?

London leads with 376 headquartered companies, followed by Manchester (65) and Birmingham (25).

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 2,179 verified decision-maker contacts tracked across these 1,091 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.