Company lists · Data refreshed September 2026
Top 25 Telemarketing companies based in the United Kingdom
RevenueBase identified 417 company matches for telemarketing companies associated with the United Kingdom as of September 2026 and tracks 4,680 professional contacts across them, including 800 with verified work emails and 258 with mobile numbers. London is the largest hub.
This list covers company matches for telemarketing 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 6, 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.
The 25 largest telemarketing companies based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 327 contacts → | ||||
Exact match “Skilled talent, proven processes and leading technology.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 2 | 243 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 6, 2026 · View company records in RevenueBase | |||||
| 3 | 119 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 6, 2026 · View company records in RevenueBase | |||||
| 4 | 116 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 6, 2026 · View company records in RevenueBase | |||||
| 5 | 114 contacts → | ||||
Exact match “EC Outsourcing is one of the UK's leading outsourced contact centres.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 6 | 96 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 6, 2026 · View company records in RevenueBase | |||||
| 7 | 82 contacts → | ||||
Exact match “Alliance Sales Support Services provides effective and sustainable sales solutions for your business.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 8 | 75 contacts → | ||||
Exact match “Voice is an agency that specialises in customer acquisition, development and retention programs.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 9 | 64 contacts → | ||||
Exact match “Voicentric are the communication experts in scientific marketing, providing a global reach to clients in the Life and Materials Sciences.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 10 | 59 contacts → | ||||
Exact match “Looking to fill your calendar with qualified calls?” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 11 | 54 contacts → | ||||
Exact match “We are an established AI-enabled call centre specialising in every aspect of sales and customer service.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 12 | 47 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 6, 2026 · View company records in RevenueBase | |||||
| 13 | 45 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 6, 2026 · View company records in RevenueBase | |||||
| 14 | 43 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 6, 2026 · View company records in RevenueBase | |||||
| 15 | 43 contacts → | ||||
Exact match “B2B and B2C outsourced Telemarketing agency.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 16 | 43 contacts → | ||||
Exact match “Welcome to Titan Worldwide Ltd, an award winning Residential Direct Marketing agency based in Shoreditch and extending our reach across the dynamic South East of England including…” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 17 | 37 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 6, 2026 · View company records in RevenueBase | |||||
| 18 | 35 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 6, 2026 · View company records in RevenueBase | |||||
| 19 | 33 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 6, 2026 · View company records in RevenueBase | |||||
| 20 | 32 contacts → | ||||
Exact match “Telu is the complete business solution for generating leads and revenue for your business.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 21 | 31 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 6, 2026 · View company records in RevenueBase | |||||
| 22 | 28 contacts → | ||||
Exact match “Generating high-quality B2B sales leads for your business!” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 23 | 27 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 6, 2026 · View company records in RevenueBase | |||||
| 24 | 26 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 6, 2026 · View company records in RevenueBase | |||||
| 25 | 25 contacts → | ||||
Exact match “Simply stated, we help our professional services and technology clients to grow their business.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “telemarketing companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 417 telemarketing companies based in the United Kingdom
See the full list, filter by size, metro and specialty, and access 800 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Telemarketing companies based in the United Kingdom at a glance
As of Sep 6, 2026Companies by employee count
Freshness & accuracy
How recently the business emails on this list were verified
Email last verified
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 “telemarketing 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 800 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 6, 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.
Telemarketing companies by metro
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 “telemarketing companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many telemarketing companies are there based in the United Kingdom?
RevenueBase identified 417 company matches for telemarketing 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?
ANT Marketing tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most telemarketing companies?
London leads with 65 company records, followed by Manchester (14) and Birmingham (10).
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 800 professional contacts with verified work emails tracked across these 417 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 6, 2026.
Ready to reach these companies? Verified emails and direct dials for all 417 telemarketing companies based in the United Kingdom. Start with a free account, no credit card.
Download this list →Related lists
Telemarketing companies by geography
- Telemarketing companies based in the United States
- Telemarketing companies based in Germany
- Telemarketing companies based in Italy
- Telemarketing companies based in France
- Telemarketing companies based in the Netherlands
- Telemarketing companies based in Canada
- Telemarketing companies based in Spain
- Telemarketing companies based in Brazil
- Telemarketing companies based in Australia
- Telemarketing companies based in Denmark
- Telemarketing companies based in Mexico
- Telemarketing companies based in Sweden
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Telemarketing companies based in the United States
- Telemarketing companies based in Germany
- Telemarketing companies based in Italy
- Telemarketing companies based in France
- Telemarketing companies based in the Netherlands
- Telemarketing companies based in Canada
Company intelligence · public preview
Top 25 telemarketing companies based in the United Kingdom
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 417 matching company records for telemarketing companies based in the United Kingdom, with 4,680 tracked contacts and 800 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 6, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 telemarketing companies based in the United Kingdom
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  ANT Marketingantmarketing.comHQ: Sheffield, United KingdomReported employees: 501-1,000 | Sheffield, United Kingdom | 501-1,000 | Exact match | 327 contacts → |
“Skilled talent, proven processes and leading technology.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  The Telemarketing Companyttmc.co.ukHQ: Brighton, United KingdomReported employees: 201-500 | Brighton, United Kingdom | 201-500 | Exact match | 243 contacts → |
“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 description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  GCLgclb2b.comHQ: Birmingham, United KingdomReported employees: 51-200 | Birmingham, United Kingdom | 51-200 | Exact match | 119 contacts → |
“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 description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  AIR Marketingair-marketing.co.ukHQ: Exeter, United KingdomReported employees: 51-200 | Exeter, United Kingdom | 51-200 | Exact match | 116 contacts → |
“Since 2016, Air Marketing has been the trusted outsourced sales and lead generation agency in the UK for ambitious B2B businesses.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  EC Outsourcing Powered By Ison Xperiencesecoutsourcing.co.ukHQ: Doxford International Business Park, United KingdomReported employees: 1,001-5,000 | Doxford International Business Park, United Kingdom | 1,001-5,000 | Exact match | 114 contacts → |
“EC Outsourcing is one of the UK's leading outsourced contact centres.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Pursuit Marketingpursuitmarketing.co.ukHQ: Glasgow, United KingdomReported employees: 51-200 | Glasgow, United Kingdom | 51-200 | Exact match | 96 contacts → |
“Pursuit Marketing are Experts in Demand Generation, Telemarketing, Digital Marketing and Creative Design - your 360 Marketing Provider.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Alliance Sales Support Services Limitedalliancesalessupport.comHQ: Tunbridge Wells, United KingdomReported employees: 51-200 | Tunbridge Wells, United Kingdom | 51-200 | Exact match | 82 contacts → |
“Alliance Sales Support Services provides effective and sustainable sales solutions for your business.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Voice Marketing LTDvoicegroup.co.ukHQ: Sheffield, United KingdomReported employees: 201-500 | Sheffield, United Kingdom | 201-500 | Exact match | 75 contacts → |
“Voice is an agency that specialises in customer acquisition, development and retention programs.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Voicentric LTDvoicentric.netHQ: Durham, United KingdomReported employees: 51-200 | Durham, United Kingdom | 51-200 | Exact match | 64 contacts → |
“Voicentric are the communication experts in scientific marketing, providing a global reach to clients in the Life and Materials Sciences.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Salesarsalesar.ioHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 59 contacts → |
“Looking to fill your calendar with qualified calls?” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Impact Call Centreimpactcallcentre.co.ukHQ: Romsey, United KingdomReported employees: 201-500 | Romsey, United Kingdom | 201-500 | Exact match | 54 contacts → |
“We are an established AI-enabled call centre specialising in every aspect of sales and customer service.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  4marketing4marketing.co.ukHQ: Portsmouth, United KingdomReported employees: 11-50 | Portsmouth, United Kingdom | 11-50 | Exact match | 47 contacts → |
“4Marketing is a direct marketing agency devoted to generating new business opportunities for its clients through its focused new generation of telemarketing professionals.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Advance Connectsadvance-connects.comHQ: Ellesmere Port, United KingdomReported employees: 51-200 | Ellesmere Port, United Kingdom | 51-200 | Exact match | 45 contacts → |
“Advance Connects are a B2B telemarketing, lead generation & appointment scheduling experts, operating within various sectors including construction, built environment, industrial…” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Beanstalk Marketingbeanstalkmarketing.co.ukHQ: Southend On Sea, United KingdomReported employees: 11-50 | Southend On Sea, United Kingdom | 11-50 | Exact match | 43 contacts → |
“Beanstalk is an integrated B2B Telemarketing and Lead Generation agency dedicated to helping our customers win new business.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Parallel Partnerships LTDparallel-partnerships.co.ukHQ: Leeds, United KingdomReported employees: 51-200 | Leeds, United Kingdom | 51-200 | Exact match | 43 contacts → |
“B2B and B2C outsourced Telemarketing agency.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Titan Worldwide LTDtitanworldwideltd.co.ukHQ: London, United KingdomReported employees: Not recorded | London, United Kingdom | Not recorded | Exact match | 43 contacts → |
“Welcome to Titan Worldwide Ltd, an award winning Residential Direct Marketing agency based in Shoreditch and extending our reach across the dynamic South East of England including…” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Econtact Services-Telco Expertsecontactservices.comHQ: Glasgow, United KingdomReported employees: 11-50 | Glasgow, United Kingdom | 11-50 | Exact match | 37 contacts → |
“Founded in 2002, eContact Services is a telemarketing agency specializing in lead generation and appointment setting for communication service providers-fixed and mobile…” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  1 Stop Data LTD1stopdata.comHQ: Ewell, United KingdomReported employees: 51-200 | Ewell, United Kingdom | 51-200 | Exact match | 35 contacts → |
“1 Stop Data offers the best of breed Marketing, Lead Generation and Call Centre services.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Paragon Marketing Projectsparagonmarketing.co.ukHQ: Portsmouth, United KingdomReported employees: 51-200 | Portsmouth, United Kingdom | 51-200 | Exact match | 33 contacts → |
“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 description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | TELUtelu.co HQ: Leeds, United KingdomReported employees: 51-200 | Leeds, United Kingdom | 51-200 | Exact match | 32 contacts → |
“Telu is the complete business solution for generating leads and revenue for your business.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  IT Focus Telemarketing LTDitfocus-tm.comHQ: Bradford On Avon, United KingdomReported employees: 11-50 | Bradford On Avon, United Kingdom | 11-50 | Exact match | 31 contacts → |
“IT Focus Telemarketing Ltd is an agency that specialises in working with information technology companies.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  The Lead Generation Companytheleadgenerationcompany.co.ukHQ: Glasgow, United KingdomReported employees: 11-50 | Glasgow, United Kingdom | 11-50 | Exact match | 28 contacts → |
“Generating high-quality B2B sales leads for your business!” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  SLM Connectslmconnect.co.ukHQ: Manchester, United KingdomReported employees: 201-500 | Manchester, United Kingdom | 201-500 | Exact match | 27 contacts → |
“Since SLM Connect started up as a contact centre in 2008, we've supplied more than customers to our clients.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  The Lead GEN Specialistsleadgenspecialists.co.ukHQ: Witham, United KingdomReported employees: 11-50 | Witham, United Kingdom | 11-50 | Exact match | 26 contacts → |
“The Lead Gen Specialists provide professional and effective outsourced Telemarketing, Email marketing & Social Media Marketing Services across multiple sectors for our clients.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Chartered Developmentschartdev.co.ukHQ: Exeter, United KingdomReported employees: 11-50 | Exeter, United Kingdom | 11-50 | Exact match | 25 contacts → |
“Simply stated, we help our professional services and technology clients to grow their business.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 417 company matches
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Telemarketing companies: dataset insights
September 6, 2026These summaries describe recorded coverage in this saved dataset. Coverage describes records in RevenueBase, rather than a census of every business in this market.
Reported company sizes
415 records in the displayed employee bands.
2 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Freshness & accuracy
How recently the business emails on this list were verified
Email last verified
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
Coverage describes records in RevenueBase, rather than a census of every business in this market.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 6, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Telemarketing companies by metro
Questions about this company list
What does Exact match mean for telemarketing companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many telemarketing companies did RevenueBase find based in the United Kingdom?
The saved snapshot records 417 matching company records, 4,680 tracked contacts and 800 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 6, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Telemarketing companies by geography
- Telemarketing companies based in the United States
- Telemarketing companies based in Germany
- Telemarketing companies based in Italy
- Telemarketing companies based in France
- Telemarketing companies based in the Netherlands
- Telemarketing companies based in Canada
- Telemarketing companies based in Spain
- Telemarketing companies based in Brazil
- Telemarketing companies based in Australia
- Telemarketing companies based in Denmark
- Telemarketing companies based in Mexico
- Telemarketing companies based in Sweden
Cite this list
RevenueBase Data Team. Top 25 telemarketing companies based in the United Kingdom. Snapshot: September 6, 2026. https://revenuebase.ai/companies/telemarketing-companies/united-kingdom.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Telemarketing companies based in the United States
- Telemarketing companies based in Germany
- Telemarketing companies based in Italy
- Telemarketing companies based in France
- Telemarketing companies based in the Netherlands
- Telemarketing companies based in Canada
Company intelligence · public preview
Top 25 telemarketing companies based in the United Kingdom
RevenueBase records 417 matching company records for telemarketing companies based in the United Kingdom, with 4,680 tracked contacts and 800 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 6, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 telemarketing companies based in the United Kingdom
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | ANT Marketingantmarketing.com HQ: Sheffield, United KingdomReported employees: 501-1,000 | Sheffield, United Kingdom | 501-1,000 | Exact match | 327 contacts → |
“Skilled talent, proven processes and leading technology.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | The Telemarketing Companyttmc.co.uk HQ: Brighton, United KingdomReported employees: 201-500 | Brighton, United Kingdom | 201-500 | Exact match | 243 contacts → |
“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 description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | GCLgclb2b.com HQ: Birmingham, United KingdomReported employees: 51-200 | Birmingham, United Kingdom | 51-200 | Exact match | 119 contacts → |
“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 description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | AIR Marketingair-marketing.co.uk HQ: Exeter, United KingdomReported employees: 51-200 | Exeter, United Kingdom | 51-200 | Exact match | 116 contacts → |
“Since 2016, Air Marketing has been the trusted outsourced sales and lead generation agency in the UK for ambitious B2B businesses.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | EC Outsourcing Powered By Ison Xperiencesecoutsourcing.co.uk HQ: Doxford International Business Park, United KingdomReported employees: 1,001-5,000 | Doxford International Business Park, United Kingdom | 1,001-5,000 | Exact match | 114 contacts → |
“EC Outsourcing is one of the UK's leading outsourced contact centres.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Pursuit Marketingpursuitmarketing.co.uk HQ: Glasgow, United KingdomReported employees: 51-200 | Glasgow, United Kingdom | 51-200 | Exact match | 96 contacts → |
“Pursuit Marketing are Experts in Demand Generation, Telemarketing, Digital Marketing and Creative Design - your 360 Marketing Provider.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Alliance Sales Support Services Limitedalliancesalessupport.com HQ: Tunbridge Wells, United KingdomReported employees: 51-200 | Tunbridge Wells, United Kingdom | 51-200 | Exact match | 82 contacts → |
“Alliance Sales Support Services provides effective and sustainable sales solutions for your business.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Voice Marketing LTDvoicegroup.co.uk HQ: Sheffield, United KingdomReported employees: 201-500 | Sheffield, United Kingdom | 201-500 | Exact match | 75 contacts → |
“Voice is an agency that specialises in customer acquisition, development and retention programs.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Voicentric LTDvoicentric.net HQ: Durham, United KingdomReported employees: 51-200 | Durham, United Kingdom | 51-200 | Exact match | 64 contacts → |
“Voicentric are the communication experts in scientific marketing, providing a global reach to clients in the Life and Materials Sciences.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Salesarsalesar.io HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 59 contacts → |
“Looking to fill your calendar with qualified calls?” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Impact Call Centreimpactcallcentre.co.uk HQ: Romsey, United KingdomReported employees: 201-500 | Romsey, United Kingdom | 201-500 | Exact match | 54 contacts → |
“We are an established AI-enabled call centre specialising in every aspect of sales and customer service.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | 4marketing4marketing.co.uk HQ: Portsmouth, United KingdomReported employees: 11-50 | Portsmouth, United Kingdom | 11-50 | Exact match | 47 contacts → |
“4Marketing is a direct marketing agency devoted to generating new business opportunities for its clients through its focused new generation of telemarketing professionals.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Advance Connectsadvance-connects.com HQ: Ellesmere Port, United KingdomReported employees: 51-200 | Ellesmere Port, United Kingdom | 51-200 | Exact match | 45 contacts → |
“Advance Connects are a B2B telemarketing, lead generation & appointment scheduling experts, operating within various sectors including construction, built environment, industrial…” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Beanstalk Marketingbeanstalkmarketing.co.uk HQ: Southend On Sea, United KingdomReported employees: 11-50 | Southend On Sea, United Kingdom | 11-50 | Exact match | 43 contacts → |
“Beanstalk is an integrated B2B Telemarketing and Lead Generation agency dedicated to helping our customers win new business.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Parallel Partnerships LTDparallel-partnerships.co.uk HQ: Leeds, United KingdomReported employees: 51-200 | Leeds, United Kingdom | 51-200 | Exact match | 43 contacts → |
“B2B and B2C outsourced Telemarketing agency.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Titan Worldwide LTDtitanworldwideltd.co.uk HQ: London, United KingdomReported employees: Not recorded | London, United Kingdom | Not recorded | Exact match | 43 contacts → |
“Welcome to Titan Worldwide Ltd, an award winning Residential Direct Marketing agency based in Shoreditch and extending our reach across the dynamic South East of England including…” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Econtact Services-Telco Expertsecontactservices.com HQ: Glasgow, United KingdomReported employees: 11-50 | Glasgow, United Kingdom | 11-50 | Exact match | 37 contacts → |
“Founded in 2002, eContact Services is a telemarketing agency specializing in lead generation and appointment setting for communication service providers-fixed and mobile…” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | 1 Stop Data LTD1stopdata.com HQ: Ewell, United KingdomReported employees: 51-200 | Ewell, United Kingdom | 51-200 | Exact match | 35 contacts → |
“1 Stop Data offers the best of breed Marketing, Lead Generation and Call Centre services.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Paragon Marketing Projectsparagonmarketing.co.uk HQ: Portsmouth, United KingdomReported employees: 51-200 | Portsmouth, United Kingdom | 51-200 | Exact match | 33 contacts → |
“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 description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | TELUtelu.co HQ: Leeds, United KingdomReported employees: 51-200 | Leeds, United Kingdom | 51-200 | Exact match | 32 contacts → |
“Telu is the complete business solution for generating leads and revenue for your business.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | IT Focus Telemarketing LTDitfocus-tm.com HQ: Bradford On Avon, United KingdomReported employees: 11-50 | Bradford On Avon, United Kingdom | 11-50 | Exact match | 31 contacts → |
“IT Focus Telemarketing Ltd is an agency that specialises in working with information technology companies.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | The Lead Generation Companytheleadgenerationcompany.co.uk HQ: Glasgow, United KingdomReported employees: 11-50 | Glasgow, United Kingdom | 11-50 | Exact match | 28 contacts → |
“Generating high-quality B2B sales leads for your business!” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | SLM Connectslmconnect.co.uk HQ: Manchester, United KingdomReported employees: 201-500 | Manchester, United Kingdom | 201-500 | Exact match | 27 contacts → |
“Since SLM Connect started up as a contact centre in 2008, we've supplied more than customers to our clients.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | The Lead GEN Specialistsleadgenspecialists.co.uk HQ: Witham, United KingdomReported employees: 11-50 | Witham, United Kingdom | 11-50 | Exact match | 26 contacts → |
“The Lead Gen Specialists provide professional and effective outsourced Telemarketing, Email marketing & Social Media Marketing Services across multiple sectors for our clients.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Chartered Developmentschartdev.co.uk HQ: Exeter, United KingdomReported employees: 11-50 | Exeter, United Kingdom | 11-50 | Exact match | 25 contacts → |
“Simply stated, we help our professional services and technology clients to grow their business.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 417 company matches
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Telemarketing companies: dataset insights
September 6, 2026These summaries describe recorded coverage in this saved dataset. Coverage describes records in RevenueBase, rather than a census of every business in this market.
Reported company sizes
415 records in the displayed employee bands.
2 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Freshness & accuracy
How recently the business emails on this list were verified
Email last verified
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
Coverage describes records in RevenueBase, rather than a census of every business in this market.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 6, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Telemarketing companies by metro
Questions about this company list
What does Exact match mean for telemarketing companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many telemarketing companies did RevenueBase find based in the United Kingdom?
The saved snapshot records 417 matching company records, 4,680 tracked contacts and 800 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 6, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
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- Telemarketing companies based in Spain
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Cite this list
RevenueBase Data Team. Top 25 telemarketing companies based in the United Kingdom. Snapshot: September 6, 2026. https://revenuebase.ai/companies/telemarketing-companies/united-kingdom.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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