Company lists · Data refreshed September 2026

Top 25 Telecom customer acquisition firms based in the United Kingdom

RevenueBase identified 450 company matches for telecom customer acquisition firms associated with the United Kingdom as of September 2026 and tracks 4,798 professional contacts across them, including 838 with verified work emails. London is the largest hub.

This list covers company matches for telecom customer acquisition firms 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 19, 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 19, 2026 How this list was built
450Companies
4,798Contacts tracked
838Verified emails
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The 25 largest telecom customer acquisition firms based in the United Kingdom

Ranked by team size
Top 25 of 450 company matches for telecom customer acquisition firms based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 19, 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 matchBournemouth, United KingdomHQ recorded Sep 19, 2026501-1,000369 contacts →

Exact match

“Welcome to EIMS.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
2Exact matchBrighton, United KingdomHQ recorded Sep 19, 2026201-500243 contacts →

Exact match

“The Telemarketing Company is one of the UK's most trusted telemarketing agencies, delivering flexible, high-quality voice services, including pre and post sales research…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
3Exact matchBirmingham, United KingdomHQ recorded Sep 19, 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 19, 2026 · View company records in RevenueBase
4Exact matchExeter, United KingdomHQ recorded Sep 19, 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 19, 2026 · View company records in RevenueBase
5Exact matchDoxford International Business Park, United KingdomHQ recorded Sep 19, 20261,001-5,000114 contacts →

Exact match

“EC Outsourcing is one of the UK's leading outsourced contact centres.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
6Exact matchGlasgow, United KingdomHQ recorded Sep 19, 202651-20096 contacts →

Exact match

“Pursuit Marketing are Experts in Demand Generation, Telemarketing, Digital Marketing and Creative Design - your 360 Marketing Provider.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
7Exact matchManchester, United KingdomHQ recorded Sep 19, 202651-20087 contacts →

Exact match

“Blume is here to help our customers grow.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
8Exact matchTunbridge Wells, United KingdomHQ recorded Sep 19, 202651-20082 contacts →

Exact match

“Alliance Sales Support Services provides effective and sustainable sales solutions for your business.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
9Exact matchPortsmouth, United KingdomHQ recorded Sep 19, 202611-5047 contacts →

Exact match

“4Marketing is a direct marketing agency devoted to generating new business opportunities for its clients through its focused new generation of telemarketing professionals.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
10Exact matchEllesmere Port, United KingdomHQ recorded Sep 19, 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 19, 2026 · View company records in RevenueBase
11Exact matchSouthend On Sea, United KingdomHQ recorded Sep 19, 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 19, 2026 · View company records in RevenueBase
12Exact matchLeeds, United KingdomHQ recorded Sep 19, 202651-20043 contacts →

Exact match

“B2B and B2C outsourced Telemarketing agency.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
13Exact matchWoking, United KingdomHQ recorded Sep 19, 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 19, 2026 · View company records in RevenueBase
14Exact matchGlasgow, United KingdomHQ recorded Sep 19, 202611-5037 contacts →

Exact match

“Founded in 2002, eContact Services is a telemarketing agency specializing in lead generation and appointment setting for communication service providers-fixed and mobile…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
15Exact matchEwell, United KingdomHQ recorded Sep 19, 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 19, 2026 · View company records in RevenueBase
16Exact matchLeeds, United KingdomHQ recorded Sep 19, 202651-20032 contacts →

Exact match

“Telu is the complete business solution for generating leads and revenue for your business.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
17Exact matchBradford On Avon, United KingdomHQ recorded Sep 19, 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 19, 2026 · View company records in RevenueBase
18Exact matchManchester, United KingdomHQ recorded Sep 19, 2026201-50027 contacts →

Exact match

“Since SLM Connect started up as a contact centre in 2008, we've supplied more than customers to our clients.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
19Exact matchWitham, United KingdomHQ recorded Sep 19, 202611-5026 contacts →

Exact match

“The Lead Gen Specialists provide professional and effective outsourced Telemarketing, Email marketing & Social Media Marketing Services across multiple sectors for our clients.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
20Exact matchExeter, United KingdomHQ recorded Sep 19, 202611-5025 contacts →

Exact match

“Simply stated, we help our professional services and technology clients to grow their business.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
21Exact matchGlasgow, United KingdomHQ recorded Sep 19, 202651-20025 contacts →

Exact match

“Established in 1988 in London as Hotlines Telemarketing Ltd, the Glasgow branch (which was established in June rebranded as 1Call Direct in October 2003.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
22Exact matchMacclesfield, United KingdomHQ recorded Sep 19, 202611-5022 contacts →

Exact match

“Helping you develop a customer-focused business.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
23Exact matchLeeds, United KingdomHQ recorded Sep 19, 202611-5022 contacts →

Exact match

“A modernised and streamlined outsourced telemarketing and business development agency focusing on analysis and high quality outreach for our partners.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
24Exact matchWath Upon Dearne, United KingdomHQ recorded Sep 19, 2026201-50022 contacts →

Exact match

“We are a customer acquisition partner with a difference – we guarantee a cost per acquisition (CPA) at the start of the process and deliver fully signed up customers to your…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
25Exact matchExeter, United KingdomHQ recorded Sep 19, 202611-5020 contacts →

Exact match

“At Home Lead Gen, we specialise in delivering tailored lead generation solutions that drive growth and success for your business.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase

Showing 25 of 450 telecom customer acquisition firms based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 838 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Telecom customer acquisition firms based in the United Kingdom at a glance

As of Sep 19, 2026
17.5%Verified-email coverage
10.7Average contacts per company
1-10Median size (employees)
21.3%Largest-city concentration · London
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
276
11-50
126
51-200
31
201-500
11
501-1,000
2
1,001-5,000
2
10001+
1

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 450 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 “telecom customer acquisition firms” 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 838 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 19, 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 “telecom customer acquisition firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many telecom customer acquisition firms are there based in the United Kingdom?

RevenueBase identified 450 company matches for telecom customer acquisition firms 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?

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

Which city has the most telecom customer acquisition firms?

London leads with 96 company records, followed by Manchester (25) and Birmingham (14).

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 838 professional contacts with verified work emails tracked across these 450 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 19, 2026.

Ready to reach these companies? Verified emails and direct dials for all 450 telecom customer acquisition firms based in the United Kingdom. Start with a free account, no credit card.

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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.