Company lists · Data verified August 2026

Top 25 Lead qualification services based in the United Kingdom

Name: Lead qualification 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 544 companies tracked

There are 544 lead qualification services headquartered in the United Kingdom (RevenueBase, August 2026). RevenueBase tracks 3,942 professional contacts across them, including 722 with verified work emails and 151 with mobile numbers. London is the largest hub.

This list covers lead qualification 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.

544Companies

3,942Contacts tracked

722Verified emails

151Mobile numbers

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The 25 largest lead qualification services based in the United Kingdom

Ranked by team size

Top 25 of 544 lead qualification 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	Qualifa	Brighton	51-200	440	2
2	Interlink	London	51-200	181	29
3	AIR Marketing	Exeter	51-200	123	47
4	Durhamlane	Newcastle Upon Tyne	51-200	114	74
5	Marathon B2B	London	51-200	52	1
6	Beanstalk Marketing	Birmingham	11-50	43	33
7	First4lawyers LTD	Huddersfield	51-200	43	29
8	Parallel Partnerships LTD	Leeds	51-200	43	7
9	Seventic	London	11-50	38	4
10	Think Pipeline LTD	Woking	51-200	38	2
11	1 Stop Data LTD	Northern	51-200	35	3
12	Leadly	Manchester	51-200	34	14
13	Paragon Marketing Projects	Portsmouth	51-200	32	23
14	leadseveryday.co.uk	Fareham	51-200	32	3
15	The Lead Generation Company	Manchester Manchester	11-50	28	10
16	SLM Connect	Manchester	201-500	27	1
17	The Lead GEN Specialists	n/a	11-50	25	9
18	Incite NEW Business	Kingston Upon Thames	11-50	18	6
19	Research Runner	Harlow	11-50	16	15
20	Newton FOX	Bolton	11-50	16	10
21	Bluewater Marketing LTD	Wellingborough	11-50	12	4
22	Veneficus UK	Guildford	11-50	11	10
23	Elemental	Torquay	11-50	11	8
24	Professional Leads	Leeds	11-50	10	6
25	Prism Marketing Group LTD	London	51-200	10	1

Showing 25 of 544 lead qualification services based in the United Kingdom

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Lead qualification services based in the United Kingdom at a glance

As of Aug 28, 2026

1-10Median size (employees)

LondonLargest hub · 193 HQs

151Contacts with mobile numbers

3Emails re-verified in last 30 days

Companies by employee count

1-10

361

11-50

144

51-200

201-500

Lead qualification services by metro

Metro	Companies
Lead qualification services in London	193
Lead qualification services in Manchester	36
Lead qualification services in Leeds	13
Lead qualification services in Birmingham	10
Lead qualification services in Bristol	9
Lead qualification services in Glasgow	8
Lead qualification services in Liverpool	6

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 “lead qualification 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; 3 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 lead qualification services are there based in the United Kingdom?

There are 544 lead qualification services 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 lead qualification services?

London leads with 193 headquartered companies, followed by Manchester (36) and Leeds (13).

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 722 verified decision-maker contacts tracked across these 544 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.