Company lists · Data refreshed September 2026

Top 25 Sales leads companies based in the United Kingdom

RevenueBase identified 553 company matches for sales leads companies associated with the United Kingdom as of September 2026 and tracks 5,415 professional contacts across them, including 1,372 with verified work emails. London is the largest hub.

This list covers company matches for sales leads companies associated with the United Kingdom, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 21, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 21, 2026 How this list was built
553Companies
5,415Contacts tracked
1,372Verified emails
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The 25 largest sales leads companies based in the United Kingdom

Ranked by team size
Top 25 of 553 company matches for sales leads companies based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchLondon, United KingdomHQ recorded Sep 21, 2026201-500530 contacts →

Exact match

“Cognism provides accurate, compliant-first B2B data and sales intelligence for teams growing across Europe and beyond.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
2Exact matchBrighton, United KingdomHQ recorded Sep 21, 202651-200440 contacts →

Exact match

“We are an award winning multilingual lead generation and market research service provider for B2B publishing, marketing, events and tech companies.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
3Exact matchLondon, United KingdomHQ recorded Sep 21, 2026n/a358 contacts →

Exact match

“At Algominds, we build AI agents that find you customers who already want to buy.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
4Exact matchBirmingham, United KingdomHQ recorded Sep 21, 202651-200119 contacts →

Exact match

“GCL, with its unique, non-scripted approach to telemarketing and related marketing services, has for over 30 years established an enviable reputation for providing winning lead…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
5Exact matchExeter, United KingdomHQ recorded Sep 21, 202651-200116 contacts →

Exact match

“Since 2016, Air Marketing has been the trusted outsourced sales and lead generation agency in the UK for ambitious B2B businesses.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
6Exact matchNewcastle Upon Tyne, United KingdomHQ recorded Sep 21, 202651-200115 contacts →

Exact match

“More than SDR Outsourcing.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
7Exact matchLondon, United KingdomHQ recorded Sep 21, 202651-20059 contacts →

Exact match

“Looking to fill your calendar with qualified calls?”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
8Exact matchEllesmere Port, United KingdomHQ recorded Sep 21, 202651-20045 contacts →

Exact match

“Advance Connects are a B2B telemarketing, lead generation & appointment scheduling experts, operating within various sectors including construction, built environment, industrial…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
9Exact matchTavistock, United KingdomHQ recorded Sep 21, 202611-5044 contacts →

Exact match

“With over three decades of experience, we partner with B2B sales and marketing teams to drive and nurture new customer acquisition - securing conversations with the right…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
10Exact matchSouthend On Sea, United KingdomHQ recorded Sep 21, 202611-5043 contacts →

Exact match

“Beanstalk is an integrated B2B Telemarketing and Lead Generation agency dedicated to helping our customers win new business.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
11Exact matchLeeds, United KingdomHQ recorded Sep 21, 202651-20043 contacts →

Exact match

“B2B and B2C outsourced Telemarketing agency.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
12Exact matchLondon, United KingdomHQ recorded Sep 21, 202611-5042 contacts →

Exact match

“Ei Advisory provides B2B sales and marketing intelligence that helps companies reach, engage and convert customers.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
13Exact matchHarrogate, United KingdomHQ recorded Sep 21, 202611-5038 contacts →

Exact match

“It’s simple.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
14Exact matchWoking, United KingdomHQ recorded Sep 21, 202651-20038 contacts →

Exact match

“We are an ambitious and agile lead generation business, who exist to genuinely accelerate your growth!”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15Exact matchManchester, United KingdomHQ recorded Sep 21, 202651-20035 contacts →

Exact match

“Delivering leads at scale to the most trustworthy financial companies nationwide.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
16Exact matchEwell, United KingdomHQ recorded Sep 21, 202651-20035 contacts →

Exact match

“1 Stop Data offers the best of breed Marketing, Lead Generation and Call Centre services.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
17Exact matchPortsmouth, United KingdomHQ recorded Sep 21, 202651-20033 contacts →

Exact match

“Working with clients across a variety of sectors, Paragon is a leading provider of B2B lead generation and appointment setting marketing projects with vast experience in creating…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
18Exact matchLondon, United KingdomHQ recorded Sep 21, 202611-5033 contacts →

Exact match

“AI Lead Generator.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
19Exact matchBradford On Avon, United KingdomHQ recorded Sep 21, 202611-5031 contacts →

Exact match

“IT Focus Telemarketing Ltd is an agency that specialises in working with information technology companies.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
20Exact matchStevenage, United KingdomHQ recorded Sep 21, 202611-5030 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
21Exact matchNorwich, United KingdomHQ recorded Sep 21, 202651-20030 contacts →

Exact match

“Watts Marketing is the largest exclusive lead generation company in the UK, located in Norwich.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
22Exact matchChelmsford, United KingdomHQ recorded Sep 21, 202611-5028 contacts →

Exact match

“Thank you for visiting us, we’re glad you came.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
23Exact matchAntrim, United KingdomHQ recorded Sep 21, 202611-5028 contacts →

Exact match

“Xsell is a global B2B Digital Marketing & Lead Generation Company, specialising in the Information Technology, IT Security & Software Sectors.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
24Exact matchGlasgow, United KingdomHQ recorded Sep 21, 202611-5028 contacts →

Exact match

“Generating high-quality B2B sales leads for your business!”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
25Exact matchGlasgow, United KingdomHQ recorded Sep 21, 202611-5027 contacts →

Exact match

“Partnering with companies globally- Lead Generation - Demand Generation - Creative Studio : hello@ORRJO.com”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase

Showing 25 of 553 sales leads companies based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 1,372 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Sales leads companies based in the United Kingdom at a glance

As of Sep 21, 2026
25.3%Verified-email coverage
9.8Average contacts per company
1-10Median size (employees)
29.7%Largest-city concentration · London
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
344
11-50
168
51-200
32
201-500
7

Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 553 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with the United Kingdom whose business descriptions match “sales leads companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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
Every displayed company carries at least one verified work email. RevenueBase tracks 1,372 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on September 21, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “sales leads companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many sales leads companies are there based in the United Kingdom?

RevenueBase identified 553 company matches for sales leads companies associated with the United Kingdom as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Cognism tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most sales leads companies?

London leads with 164 company records, followed by Manchester (30) and Birmingham (13).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 1,372 professional contacts with verified work emails tracked across these 553 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 21, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 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 with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.