Company lists · Data refreshed September 2026
Top 25 Contact centers based in the United Kingdom
RevenueBase identified 496 company matches for contact centers associated with the United Kingdom as of September 2026 and tracks 13,376 professional contacts across them, including 3,504 with verified work emails and 1,027 with mobile numbers. London is the largest hub.
This list covers company matches for contact centers 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 1, 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 contact centers based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 2,427 contacts → | ||||
Exact match “8x8, Inc.(NASDAQ: EGHT) believes that CX limits were meant to be shattered.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
| 2 | 876 contacts → | ||||
Exact match “At Convergys Intelligent Contact, we build sustainable revenue streams for our clients.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
| 3 | 493 contacts → | ||||
Exact match “Give your customers a voice with ResQ.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
| 4 | 456 contacts → | ||||
Exact match “IST Networks is a Teleperformance brand, and part of the TP Infinity family, a new global force in CX Transformation Services.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
| 5 | 343 contacts → | ||||
Exact match “Pelatro is a leading customer engagement solution provider for Telecommunication.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
| 6 | 328 contacts → | ||||
Exact match “Skilled talent, proven processes and leading technology.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
| 7 | 324 contacts → | ||||
Exact match “Here at The Contact Company, we add value for clients, working as trusted partners to manage and develop their customer contact processes.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
| 8 | 242 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 1, 2026 · View company records in RevenueBase | |||||
| 9 | 202 contacts → | ||||
Exact match “At Eckoh, we are dedicated to making the world secure, ensuring that everyone can trust brands and engage without risk.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
| 10 | 202 contacts → | ||||
Exact match “Established since 1998 Clearanswer is an expert provider of contact centre solutions.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
| 11 | 159 contacts → | ||||
Exact match “We are a leading UK customer experience outsourcer, recently named Gold winners for L&D Team of the Year 2025, Best Contact Centre Culture (Large) 2024 and Outsourced Contact…” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
| 12 | 140 contacts → | ||||
Exact match “Echoing our clients in every conversation.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
| 13 | 131 contacts → | ||||
Exact match “Dedicated and shared contact centre outsourcing operations.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
| 14 | 115 contacts → | ||||
Exact match “Step Change Outsourcing is a growing contact centre working in partnership with some of the UK’s largest brands for over 15 years.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
| 15 | 115 contacts → | ||||
Exact match “EC Outsourcing is one of the UK's leading outsourced contact centres.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
| 16 | 95 contacts → | ||||
Exact match “Founded in 1988, RSVP is the oldest provider of contact centre services in the UK.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
| 17 | 82 contacts → | ||||
Exact match “We are FM Outsource, a modern customer service outsourcer.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
| 18 | 77 contacts → | ||||
Exact match “Loop was created in April from within the Kelda Group, to provide managed customer services to our sister company Yorkshire Water.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
| 19 | 73 contacts → | ||||
Exact match “We’re a 24/7 specialist outsourced Contact Centre business.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
| 20 | 59 contacts → | ||||
Exact match “CallCare is your outsourced contact centre and customer service partner.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
| 21 | 55 contacts → | ||||
Exact match “Employing over 250 staff, we are a well-established, highly regarded and successful outsourced multi-channel contact centre.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
| 22 | 40 contacts → | ||||
Exact match “Effebot provides auto-calls to improve CX and drive costs.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
| 23 | 39 contacts → | ||||
Exact match “For over 20 years, Chase Response has delivered unrivalled standards in call centre outsourcing and customer management services.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
| 24 | 36 contacts → | ||||
Exact match “Spark Response provides ideas driven order fulfilment and contact centre services to help brands and retailers grow.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
| 25 | 36 contacts → | ||||
Exact match “BPO & Technology Solutions | Contact Center Optimization | Scalable Operations As a leader at Sensible Group, I specialize in delivering high-performance BPO solutions tailored…” Recorded in the RevenueBase company graph · Sep 1, 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 “contact centers”. 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 496 contact centers based in the United Kingdom
See the full list, filter by size, metro and specialty, and access 3,504 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Contact centers based in the United Kingdom at a glance
As of Sep 1, 2026Companies by employee count
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 “contact centers” 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 3,504 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 1, 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.
Contact centers 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 “contact centers”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many contact centers are there based in the United Kingdom?
RevenueBase identified 496 company matches for contact centers 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?
8x8 tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most contact centers?
London leads with 109 company records, followed by Manchester (26) and Bristol (11).
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 3,504 professional contacts with verified work emails tracked across these 496 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 1, 2026.
Ready to reach these companies? Verified emails and direct dials for all 496 contact centers based in the United Kingdom. Start with a free account, no credit card.
Download this list →Related lists
Contact centers by geography
- Contact centers based in the United States
- Contact centers based in Brazil
- Contact centers based in Germany
- Contact centers based in France
- Contact centers based in Italy
- Contact centers based in Mexico
- Contact centers based in Canada
- Contact centers based in Spain
- Contact centers based in the Netherlands
- Contact centers based in South Africa
- Contact centers based in Australia
- Contact centers based in Argentina
Browse the directory
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
Company intelligence · public preview
Top 25 contact centers 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 496 matching company records for contact centers based in the United Kingdom, with 13,376 tracked contacts and 3,504 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 1, 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 contact centers 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 |  8x88x8.comHQ: HQ not recorded; location: Aylesbury, United KingdomReported employees: 1,001-5,000 | HQ not recorded; location: Aylesbury, United Kingdom | 1,001-5,000 | Exact match | 2,427 contacts → |
“8x8, Inc.(NASDAQ: EGHT) believes that CX limits were meant to be shattered.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Convergys Intelligent Contactconvergys.comHQ: HQ not recorded; location: Manchester, United KingdomReported employees: 10001+ | HQ not recorded; location: Manchester, United Kingdom | 10001+ | Exact match | 876 contacts → |
“At Convergys Intelligent Contact, we build sustainable revenue streams for our clients.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  RESQresqcs.co.ukHQ: HQ not recorded; location: Seaham, United KingdomReported employees: 1,001-5,000 | HQ not recorded; location: Seaham, United Kingdom | 1,001-5,000 | Exact match | 493 contacts → |
“Give your customers a voice with ResQ.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  IST Networksistnetworks.comHQ: HQ not recorded; location: London, United KingdomReported employees: 201-500 | HQ not recorded; location: London, United Kingdom | 201-500 | Exact match | 456 contacts → |
“IST Networks is a Teleperformance brand, and part of the TP Infinity family, a new global force in CX Transformation Services.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Pelatropelatro.comHQ: HQ not recorded; location: London, United KingdomReported employees: 201-500 | HQ not recorded; location: London, United Kingdom | 201-500 | Exact match | 343 contacts → |
“Pelatro is a leading customer engagement solution provider for Telecommunication.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  ANT Marketingantmarketing.comHQ: HQ not recorded; location: Sheffield, United KingdomReported employees: 501-1,000 | HQ not recorded; location: Sheffield, United Kingdom | 501-1,000 | Exact match | 328 contacts → |
“Skilled talent, proven processes and leading technology.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  The Contact Companythecontactcompany.co.ukHQ: HQ not recorded; location: Wirral, United KingdomReported employees: 1,001-5,000 | HQ not recorded; location: Wirral, United Kingdom | 1,001-5,000 | Exact match | 324 contacts → |
“Here at The Contact Company, we add value for clients, working as trusted partners to manage and develop their customer contact processes.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  The Telemarketing Companyttmc.co.ukHQ: HQ not recorded; location: Brighton, United KingdomReported employees: 201-500 | HQ not recorded; location: Brighton, United Kingdom | 201-500 | Exact match | 242 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 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  ECKOHeckoh.comHQ: HQ not recorded; location: Hemel Hempstead, United KingdomReported employees: 201-500 | HQ not recorded; location: Hemel Hempstead, United Kingdom | 201-500 | Exact match | 202 contacts → |
“At Eckoh, we are dedicated to making the world secure, ensuring that everyone can trust brands and engage without risk.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Clearanswer Call Centresclearanswer.co.ukHQ: HQ not recorded; location: Leeds, United KingdomReported employees: 501-1,000 | HQ not recorded; location: Leeds, United Kingdom | 501-1,000 | Exact match | 202 contacts → |
“Established since 1998 Clearanswer is an expert provider of contact centre solutions.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Interact Contact Centresinteractcc.comHQ: HQ not recorded; location: Richmond, United KingdomReported employees: 501-1,000 | HQ not recorded; location: Richmond, United Kingdom | 501-1,000 | Exact match | 159 contacts → |
“We are a leading UK customer experience outsourcer, recently named Gold winners for L&D Team of the Year 2025, Best Contact Centre Culture (Large) 2024 and Outsourced Contact…” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Echo-U LTDecho-u.co.ukHQ: HQ not recorded; location: Newcastle Upon Tyne, United KingdomReported employees: 201-500 | HQ not recorded; location: Newcastle Upon Tyne, United Kingdom | 201-500 | Exact match | 140 contacts → |
“Echoing our clients in every conversation.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  We ARE Wovenwearewoven.comHQ: HQ not recorded; location: Bristol, United KingdomReported employees: 1,001-5,000 | HQ not recorded; location: Bristol, United Kingdom | 1,001-5,000 | Exact match | 131 contacts → |
“Dedicated and shared contact centre outsourcing operations.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Step Change Outsourcingstepchangeoutsourcing.co.ukHQ: HQ not recorded; location: Stevenage, United KingdomReported employees: 201-500 | HQ not recorded; location: Stevenage, United Kingdom | 201-500 | Exact match | 115 contacts → |
“Step Change Outsourcing is a growing contact centre working in partnership with some of the UK’s largest brands for over 15 years.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  EC Outsourcing Powered By Ison Xperiencesecoutsourcing.co.ukHQ: HQ not recorded; location: Sheffield, United KingdomReported employees: 1,001-5,000 | HQ not recorded; location: Sheffield, United Kingdom | 1,001-5,000 | Exact match | 115 contacts → |
“EC Outsourcing is one of the UK's leading outsourced contact centres.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Rsvp Media Response LTDrsvp.co.ukHQ: HQ not recorded; location: London, United KingdomReported employees: 201-500 | HQ not recorded; location: London, United Kingdom | 201-500 | Exact match | 95 contacts → |
“Founded in 1988, RSVP is the oldest provider of contact centre services in the UK.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  FM Outsourcefmoutsource.comHQ: HQ not recorded; location: Bury, United KingdomReported employees: 201-500 | HQ not recorded; location: Bury, United Kingdom | 201-500 | Exact match | 82 contacts → |
“We are FM Outsource, a modern customer service outsourcer.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Loop Customer Managementloop.co.ukHQ: HQ not recorded; location: Bradford, United KingdomReported employees: 501-1,000 | HQ not recorded; location: Bradford, United Kingdom | 501-1,000 | Exact match | 77 contacts → |
“Loop was created in April from within the Kelda Group, to provide managed customer services to our sister company Yorkshire Water.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Connect Assistconnectassist.co.ukHQ: HQ not recorded; location: Cardiff, United KingdomReported employees: 201-500 | HQ not recorded; location: Cardiff, United Kingdom | 201-500 | Exact match | 73 contacts → |
“We’re a 24/7 specialist outsourced Contact Centre business.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Callcarecallcare247.comHQ: HQ not recorded; location: London, United KingdomReported employees: 1,001-5,000 | HQ not recorded; location: London, United Kingdom | 1,001-5,000 | Exact match | 59 contacts → |
“CallCare is your outsourced contact centre and customer service partner.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Impact Call Centreimpactcallcentre.co.ukHQ: HQ not recorded; location: Romsey, United KingdomReported employees: 201-500 | HQ not recorded; location: Romsey, United Kingdom | 201-500 | Exact match | 55 contacts → |
“Employing over 250 staff, we are a well-established, highly regarded and successful outsourced multi-channel contact centre.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Effeboteffebot.comHQ: HQ not recorded; location: London, United KingdomReported employees: 201-500 | HQ not recorded; location: London, United Kingdom | 201-500 | Exact match | 40 contacts → |
“Effebot provides auto-calls to improve CX and drive costs.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Chase Responsechaseresponse.comHQ: HQ not recorded; location: Croydon, United KingdomReported employees: 501-1,000 | HQ not recorded; location: Croydon, United Kingdom | 501-1,000 | Exact match | 39 contacts → |
“For over 20 years, Chase Response has delivered unrivalled standards in call centre outsourcing and customer management services.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Spark Responsesparkresponse.comHQ: HQ not recorded; location: Gateshead, United KingdomReported employees: 201-500 | HQ not recorded; location: Gateshead, United Kingdom | 201-500 | Exact match | 36 contacts → |
“Spark Response provides ideas driven order fulfilment and contact centre services to help brands and retailers grow.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Sensible Group Internationalsensiblegroup.comHQ: HQ not recorded; location: Manchester, United KingdomReported employees: 201-500 | HQ not recorded; location: Manchester, United Kingdom | 201-500 | Exact match | 36 contacts → |
“BPO & Technology Solutions | Contact Center Optimization | Scalable Operations As a leader at Sensible Group, I specialize in delivering high-performance BPO solutions tailored…” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 496 company matches
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Contact centers: dataset insights
September 1, 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
492 records in the displayed employee bands.
4 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 1, 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 ↗
Contact centers by metro
Questions about this company list
What does Exact match mean for contact centers?
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 contact centers did RevenueBase find based in the United Kingdom?
The saved snapshot records 496 matching company records, 13,376 tracked contacts and 3,504 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 1, 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
Contact centers by geography
- Contact centers based in the United States
- Contact centers based in Brazil
- Contact centers based in Germany
- Contact centers based in France
- Contact centers based in Italy
- Contact centers based in Mexico
- Contact centers based in Canada
- Contact centers based in Spain
- Contact centers based in the Netherlands
- Contact centers based in South Africa
- Contact centers based in Australia
- Contact centers based in Argentina
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 contact centers based in the United Kingdom. Snapshot: September 1, 2026. https://revenuebase.ai/companies/contact-centers/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
Company intelligence · public preview
Top 25 contact centers based in the United Kingdom
RevenueBase records 496 matching company records for contact centers based in the United Kingdom, with 13,376 tracked contacts and 3,504 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 1, 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 contact centers 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 | 8x88x8.com HQ: HQ not recorded; location: Aylesbury, United KingdomReported employees: 1,001-5,000 | HQ not recorded; location: Aylesbury, United Kingdom | 1,001-5,000 | Exact match | 2,427 contacts → |
“8x8, Inc.(NASDAQ: EGHT) believes that CX limits were meant to be shattered.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Convergys Intelligent Contactconvergys.com HQ: HQ not recorded; location: Manchester, United KingdomReported employees: 10001+ | HQ not recorded; location: Manchester, United Kingdom | 10001+ | Exact match | 876 contacts → |
“At Convergys Intelligent Contact, we build sustainable revenue streams for our clients.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | RESQresqcs.co.uk HQ: HQ not recorded; location: Seaham, United KingdomReported employees: 1,001-5,000 | HQ not recorded; location: Seaham, United Kingdom | 1,001-5,000 | Exact match | 493 contacts → |
“Give your customers a voice with ResQ.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | IST Networksistnetworks.com HQ: HQ not recorded; location: London, United KingdomReported employees: 201-500 | HQ not recorded; location: London, United Kingdom | 201-500 | Exact match | 456 contacts → |
“IST Networks is a Teleperformance brand, and part of the TP Infinity family, a new global force in CX Transformation Services.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Pelatropelatro.com HQ: HQ not recorded; location: London, United KingdomReported employees: 201-500 | HQ not recorded; location: London, United Kingdom | 201-500 | Exact match | 343 contacts → |
“Pelatro is a leading customer engagement solution provider for Telecommunication.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | ANT Marketingantmarketing.com HQ: HQ not recorded; location: Sheffield, United KingdomReported employees: 501-1,000 | HQ not recorded; location: Sheffield, United Kingdom | 501-1,000 | Exact match | 328 contacts → |
“Skilled talent, proven processes and leading technology.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | The Contact Companythecontactcompany.co.uk HQ: HQ not recorded; location: Wirral, United KingdomReported employees: 1,001-5,000 | HQ not recorded; location: Wirral, United Kingdom | 1,001-5,000 | Exact match | 324 contacts → |
“Here at The Contact Company, we add value for clients, working as trusted partners to manage and develop their customer contact processes.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | The Telemarketing Companyttmc.co.uk HQ: HQ not recorded; location: Brighton, United KingdomReported employees: 201-500 | HQ not recorded; location: Brighton, United Kingdom | 201-500 | Exact match | 242 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 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | ECKOHeckoh.com HQ: HQ not recorded; location: Hemel Hempstead, United KingdomReported employees: 201-500 | HQ not recorded; location: Hemel Hempstead, United Kingdom | 201-500 | Exact match | 202 contacts → |
“At Eckoh, we are dedicated to making the world secure, ensuring that everyone can trust brands and engage without risk.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Clearanswer Call Centresclearanswer.co.uk HQ: HQ not recorded; location: Leeds, United KingdomReported employees: 501-1,000 | HQ not recorded; location: Leeds, United Kingdom | 501-1,000 | Exact match | 202 contacts → |
“Established since 1998 Clearanswer is an expert provider of contact centre solutions.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Interact Contact Centresinteractcc.com HQ: HQ not recorded; location: Richmond, United KingdomReported employees: 501-1,000 | HQ not recorded; location: Richmond, United Kingdom | 501-1,000 | Exact match | 159 contacts → |
“We are a leading UK customer experience outsourcer, recently named Gold winners for L&D Team of the Year 2025, Best Contact Centre Culture (Large) 2024 and Outsourced Contact…” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Echo-U LTDecho-u.co.uk HQ: HQ not recorded; location: Newcastle Upon Tyne, United KingdomReported employees: 201-500 | HQ not recorded; location: Newcastle Upon Tyne, United Kingdom | 201-500 | Exact match | 140 contacts → |
“Echoing our clients in every conversation.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | We ARE Wovenwearewoven.com HQ: HQ not recorded; location: Bristol, United KingdomReported employees: 1,001-5,000 | HQ not recorded; location: Bristol, United Kingdom | 1,001-5,000 | Exact match | 131 contacts → |
“Dedicated and shared contact centre outsourcing operations.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Step Change Outsourcingstepchangeoutsourcing.co.uk HQ: HQ not recorded; location: Stevenage, United KingdomReported employees: 201-500 | HQ not recorded; location: Stevenage, United Kingdom | 201-500 | Exact match | 115 contacts → |
“Step Change Outsourcing is a growing contact centre working in partnership with some of the UK’s largest brands for over 15 years.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | EC Outsourcing Powered By Ison Xperiencesecoutsourcing.co.uk HQ: HQ not recorded; location: Sheffield, United KingdomReported employees: 1,001-5,000 | HQ not recorded; location: Sheffield, United Kingdom | 1,001-5,000 | Exact match | 115 contacts → |
“EC Outsourcing is one of the UK's leading outsourced contact centres.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Rsvp Media Response LTDrsvp.co.uk HQ: HQ not recorded; location: London, United KingdomReported employees: 201-500 | HQ not recorded; location: London, United Kingdom | 201-500 | Exact match | 95 contacts → |
“Founded in 1988, RSVP is the oldest provider of contact centre services in the UK.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | FM Outsourcefmoutsource.com HQ: HQ not recorded; location: Bury, United KingdomReported employees: 201-500 | HQ not recorded; location: Bury, United Kingdom | 201-500 | Exact match | 82 contacts → |
“We are FM Outsource, a modern customer service outsourcer.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Loop Customer Managementloop.co.uk HQ: HQ not recorded; location: Bradford, United KingdomReported employees: 501-1,000 | HQ not recorded; location: Bradford, United Kingdom | 501-1,000 | Exact match | 77 contacts → |
“Loop was created in April from within the Kelda Group, to provide managed customer services to our sister company Yorkshire Water.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Connect Assistconnectassist.co.uk HQ: HQ not recorded; location: Cardiff, United KingdomReported employees: 201-500 | HQ not recorded; location: Cardiff, United Kingdom | 201-500 | Exact match | 73 contacts → |
“We’re a 24/7 specialist outsourced Contact Centre business.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Callcarecallcare247.com HQ: HQ not recorded; location: London, United KingdomReported employees: 1,001-5,000 | HQ not recorded; location: London, United Kingdom | 1,001-5,000 | Exact match | 59 contacts → |
“CallCare is your outsourced contact centre and customer service partner.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Impact Call Centreimpactcallcentre.co.uk HQ: HQ not recorded; location: Romsey, United KingdomReported employees: 201-500 | HQ not recorded; location: Romsey, United Kingdom | 201-500 | Exact match | 55 contacts → |
“Employing over 250 staff, we are a well-established, highly regarded and successful outsourced multi-channel contact centre.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Effeboteffebot.com HQ: HQ not recorded; location: London, United KingdomReported employees: 201-500 | HQ not recorded; location: London, United Kingdom | 201-500 | Exact match | 40 contacts → |
“Effebot provides auto-calls to improve CX and drive costs.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Chase Responsechaseresponse.com HQ: HQ not recorded; location: Croydon, United KingdomReported employees: 501-1,000 | HQ not recorded; location: Croydon, United Kingdom | 501-1,000 | Exact match | 39 contacts → |
“For over 20 years, Chase Response has delivered unrivalled standards in call centre outsourcing and customer management services.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Spark Responsesparkresponse.com HQ: HQ not recorded; location: Gateshead, United KingdomReported employees: 201-500 | HQ not recorded; location: Gateshead, United Kingdom | 201-500 | Exact match | 36 contacts → |
“Spark Response provides ideas driven order fulfilment and contact centre services to help brands and retailers grow.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Sensible Group Internationalsensiblegroup.com HQ: HQ not recorded; location: Manchester, United KingdomReported employees: 201-500 | HQ not recorded; location: Manchester, United Kingdom | 201-500 | Exact match | 36 contacts → |
“BPO & Technology Solutions | Contact Center Optimization | Scalable Operations As a leader at Sensible Group, I specialize in delivering high-performance BPO solutions tailored…” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 496 company matches
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Contact centers: dataset insights
September 1, 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
492 records in the displayed employee bands.
4 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 1, 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 ↗
Contact centers by metro
Questions about this company list
What does Exact match mean for contact centers?
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 contact centers did RevenueBase find based in the United Kingdom?
The saved snapshot records 496 matching company records, 13,376 tracked contacts and 3,504 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 1, 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
Contact centers by geography
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- Contact centers based in Germany
- Contact centers based in France
- Contact centers based in Italy
- Contact centers based in Mexico
- Contact centers based in Canada
- Contact centers based in Spain
- Contact centers based in the Netherlands
- Contact centers based in South Africa
- Contact centers based in Australia
- Contact centers based in Argentina
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 contact centers based in the United Kingdom. Snapshot: September 1, 2026. https://revenuebase.ai/companies/contact-centers/united-kingdom.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗