Company lists · Data refreshed September 2026
Top 25 Customer service outsourcing companies based in the United Kingdom
RevenueBase identified 456 company matches for customer service outsourcing companies associated with the United Kingdom as of September 2026 and tracks 32,318 professional contacts across them, including 5,694 with verified work emails and 1,130 with mobile numbers. London is the largest hub.
This list covers company matches for customer service outsourcing 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 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 customer service outsourcing companies based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 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 | |||||
| 2 | 464 contacts → | ||||
Exact match “Smartsourcing is a global outsourcing company redefining how businesses scale through people-first solutions.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
| 3 | 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 | |||||
| 4 | 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 | |||||
| 5 | 320 contacts → | ||||
Exact match “Ventrica is a global leader in delivering emotive CX through BPO.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
| 6 | 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 | |||||
| 7 | 241 contacts → | ||||
Exact match “Response provides smart outsourcing solutions that combine high-performing talent, operational excellence, scalable talent, and technology-enabled service delivery.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
| 8 | 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 | |||||
| 9 | 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 | |||||
| 10 | 150 contacts → | ||||
Exact match “Ceuta Healthcare is the leading outsourcing partner in OTC Health & Personal Care.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
| 11 | 140 contacts → | ||||
Exact match “Echoing our clients in every conversation.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
| 12 | 137 contacts → | ||||
Exact match “Convergys is a world-class customer management firm made up of employees working in more than 150 service centers and 31 countries.” 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 | 104 contacts → | ||||
Exact match “Celebrating Excellence with Exquisite Solution Limited – Uganda's foremost Business Process Outsourcing authority, where excellence knows no bounds.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
| 15 | 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 | |||||
| 16 | 84 contacts → | ||||
Exact match “We are Subfero.” 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 | 63 contacts → | ||||
Exact match “QORMOTHO is a global outsourcing company.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
| 21 | 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 | |||||
| 22 | 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 | |||||
| 23 | 54 contacts → | ||||
Exact match “Orca offers flexible and adaptable call answering and live chat services that help clients manage costs effectively.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
| 24 | 52 contacts → | ||||
Exact match “Cymphony is your 24/7 customer support partner.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
| 25 | 49 contacts → | ||||
Exact match “At Fly Pie, sales outsourcing isn’t a “done-for-you” service, it’s a growth engine we build with you.” 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 “customer service outsourcing 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 456 customer service outsourcing companies based in the United Kingdom
See the full list, filter by size, metro and specialty, and access 5,694 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Customer service outsourcing companies 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 “customer service outsourcing 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 5,694 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.
Customer service outsourcing 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 “customer service outsourcing companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many customer service outsourcing companies are there based in the United Kingdom?
RevenueBase identified 456 company matches for customer service outsourcing 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?
RESQ tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most customer service outsourcing companies?
London leads with 144 company records, followed by Manchester (20) and Bristol (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 5,694 professional contacts with verified work emails tracked across these 456 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 456 customer service outsourcing companies based in the United Kingdom. Start with a free account, no credit card.
Download this list →Related lists
Customer service outsourcing companies by geography
- Customer service outsourcing companies based in the United States
- Customer service outsourcing companies based in Brazil
- Customer service outsourcing companies based in Spain
- Customer service outsourcing companies based in Germany
- Customer service outsourcing companies based in Canada
- Customer service outsourcing companies based in France
- Customer service outsourcing companies based in Italy
- Customer service outsourcing companies based in Mexico
- Customer service outsourcing companies based in South Africa
- Customer service outsourcing companies based in Australia
- Customer service outsourcing companies based in the Netherlands
- Customer service outsourcing companies based in Poland
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
- Customer service outsourcing companies based in the United States
- Customer service outsourcing companies based in Brazil
- Customer service outsourcing companies based in Spain
- Customer service outsourcing companies based in Germany
- Customer service outsourcing companies based in Canada
- Customer service outsourcing companies based in France
Company intelligence · public preview
Top 25 customer service outsourcing 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 456 matching company records for customer service outsourcing companies based in the United Kingdom, with 32,318 tracked contacts and 5,694 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 customer service outsourcing 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 |  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. | |||||
| 2 |  Smartsourcingsmartsourcing.coHQ: HQ not recorded; location: Bristol, United KingdomReported employees: 201-500 | HQ not recorded; location: Bristol, United Kingdom | 201-500 | Exact match | 464 contacts → |
“Smartsourcing is a global outsourcing company redefining how businesses scale through people-first solutions.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  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. | |||||
| 4 |  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. | |||||
| 5 |  Ventricaventrica.co.ukHQ: HQ not recorded; location: Southend-On-Sea, United KingdomReported employees: 501-1,000 | HQ not recorded; location: Southend-On-Sea, United Kingdom | 501-1,000 | Exact match | 320 contacts → |
“Ventrica is a global leader in delivering emotive CX through BPO.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  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. | |||||
| 7 |  Responseresponse-bpo.comHQ: HQ not recorded; location: United KingdomReported employees: 1,001-5,000 | HQ not recorded; location: United Kingdom | 1,001-5,000 | Exact match | 241 contacts → |
“Response provides smart outsourcing solutions that combine high-performing talent, operational excellence, scalable talent, and technology-enabled service delivery.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  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. | |||||
| 9 |  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. | |||||
| 10 |  Ceuta Healthcare Part Of Ceuta Groupceutahealthcare.comHQ: HQ not recorded; location: Bournemouth, United KingdomReported employees: 51-200 | HQ not recorded; location: Bournemouth, United Kingdom | 51-200 | Exact match | 150 contacts → |
“Ceuta Healthcare is the leading outsourcing partner in OTC Health & Personal Care.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  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. | |||||
| 12 |  Convergys Limitedconvergys.comHQ: HQ not recorded; location: London, United KingdomReported employees: 51-200 | HQ not recorded; location: London, United Kingdom | 51-200 | Exact match | 137 contacts → |
“Convergys is a world-class customer management firm made up of employees working in more than 150 service centers and 31 countries.” 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 |  Exquisite Solution Limitedexquisitesolution.comHQ: HQ not recorded; location: London, United KingdomReported employees: 501-1,000 | HQ not recorded; location: London, United Kingdom | 501-1,000 | Exact match | 104 contacts → |
“Celebrating Excellence with Exquisite Solution Limited – Uganda's foremost Business Process Outsourcing authority, where excellence knows no bounds.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  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. | |||||
| 16 |  Subferosubfero.comHQ: HQ not recorded; location: Bristol, United KingdomReported employees: 51-200 | HQ not recorded; location: Bristol, United Kingdom | 51-200 | Exact match | 84 contacts → |
“We are Subfero.” 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 |  Qormothoqormotho.comHQ: HQ not recorded; location: London, United KingdomReported employees: 51-200 | HQ not recorded; location: London, United Kingdom | 51-200 | Exact match | 63 contacts → |
“QORMOTHO is a global outsourcing company.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  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. | |||||
| 22 |  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. | |||||
| 23 |  Orca Call Answering & Live Chatweareorca.comHQ: HQ not recorded; location: Wrexham, United KingdomReported employees: 51-200 | HQ not recorded; location: Wrexham, United Kingdom | 51-200 | Exact match | 54 contacts → |
“Orca offers flexible and adaptable call answering and live chat services that help clients manage costs effectively.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Cymphonycymphony.co.ukHQ: HQ not recorded; location: Crewe, United KingdomReported employees: 51-200 | HQ not recorded; location: Crewe, United Kingdom | 51-200 | Exact match | 52 contacts → |
“Cymphony is your 24/7 customer support partner.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  FLY PIE LTDflypie.co.ukHQ: HQ not recorded; location: London, United KingdomReported employees: 51-200 | HQ not recorded; location: London, United Kingdom | 51-200 | Exact match | 49 contacts → |
“At Fly Pie, sales outsourcing isn’t a “done-for-you” service, it’s a growth engine we build with you.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 456 company matches
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Customer service outsourcing companies: 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
443 records in the displayed employee bands.
13 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 ↗
Customer service outsourcing companies by metro
Questions about this company list
What does Exact match mean for customer service outsourcing 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 customer service outsourcing companies did RevenueBase find based in the United Kingdom?
The saved snapshot records 456 matching company records, 32,318 tracked contacts and 5,694 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
Customer service outsourcing companies by geography
- Customer service outsourcing companies based in the United States
- Customer service outsourcing companies based in Brazil
- Customer service outsourcing companies based in Spain
- Customer service outsourcing companies based in Germany
- Customer service outsourcing companies based in Canada
- Customer service outsourcing companies based in France
- Customer service outsourcing companies based in Italy
- Customer service outsourcing companies based in Mexico
- Customer service outsourcing companies based in South Africa
- Customer service outsourcing companies based in Australia
- Customer service outsourcing companies based in the Netherlands
- Customer service outsourcing companies based in Poland
Cite this list
RevenueBase Data Team. Top 25 customer service outsourcing companies based in the United Kingdom. Snapshot: September 1, 2026. https://revenuebase.ai/companies/customer-service-outsourcing-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
- Customer service outsourcing companies based in the United States
- Customer service outsourcing companies based in Brazil
- Customer service outsourcing companies based in Spain
- Customer service outsourcing companies based in Germany
- Customer service outsourcing companies based in Canada
- Customer service outsourcing companies based in France
Company intelligence · public preview
Top 25 customer service outsourcing companies based in the United Kingdom
RevenueBase records 456 matching company records for customer service outsourcing companies based in the United Kingdom, with 32,318 tracked contacts and 5,694 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 customer service outsourcing 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 | 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. | |||||
| 2 | Smartsourcingsmartsourcing.co HQ: HQ not recorded; location: Bristol, United KingdomReported employees: 201-500 | HQ not recorded; location: Bristol, United Kingdom | 201-500 | Exact match | 464 contacts → |
“Smartsourcing is a global outsourcing company redefining how businesses scale through people-first solutions.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | 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. | |||||
| 4 | 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. | |||||
| 5 | Ventricaventrica.co.uk HQ: HQ not recorded; location: Southend-On-Sea, United KingdomReported employees: 501-1,000 | HQ not recorded; location: Southend-On-Sea, United Kingdom | 501-1,000 | Exact match | 320 contacts → |
“Ventrica is a global leader in delivering emotive CX through BPO.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | 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. | |||||
| 7 | Responseresponse-bpo.com HQ: HQ not recorded; location: United KingdomReported employees: 1,001-5,000 | HQ not recorded; location: United Kingdom | 1,001-5,000 | Exact match | 241 contacts → |
“Response provides smart outsourcing solutions that combine high-performing talent, operational excellence, scalable talent, and technology-enabled service delivery.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | 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. | |||||
| 9 | 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. | |||||
| 10 | Ceuta Healthcare Part Of Ceuta Groupceutahealthcare.com HQ: HQ not recorded; location: Bournemouth, United KingdomReported employees: 51-200 | HQ not recorded; location: Bournemouth, United Kingdom | 51-200 | Exact match | 150 contacts → |
“Ceuta Healthcare is the leading outsourcing partner in OTC Health & Personal Care.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | 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. | |||||
| 12 | Convergys Limitedconvergys.com HQ: HQ not recorded; location: London, United KingdomReported employees: 51-200 | HQ not recorded; location: London, United Kingdom | 51-200 | Exact match | 137 contacts → |
“Convergys is a world-class customer management firm made up of employees working in more than 150 service centers and 31 countries.” 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 | Exquisite Solution Limitedexquisitesolution.com HQ: HQ not recorded; location: London, United KingdomReported employees: 501-1,000 | HQ not recorded; location: London, United Kingdom | 501-1,000 | Exact match | 104 contacts → |
“Celebrating Excellence with Exquisite Solution Limited – Uganda's foremost Business Process Outsourcing authority, where excellence knows no bounds.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | 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. | |||||
| 16 | Subferosubfero.com HQ: HQ not recorded; location: Bristol, United KingdomReported employees: 51-200 | HQ not recorded; location: Bristol, United Kingdom | 51-200 | Exact match | 84 contacts → |
“We are Subfero.” 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 | Qormothoqormotho.com HQ: HQ not recorded; location: London, United KingdomReported employees: 51-200 | HQ not recorded; location: London, United Kingdom | 51-200 | Exact match | 63 contacts → |
“QORMOTHO is a global outsourcing company.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | 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. | |||||
| 22 | 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. | |||||
| 23 | Orca Call Answering & Live Chatweareorca.com HQ: HQ not recorded; location: Wrexham, United KingdomReported employees: 51-200 | HQ not recorded; location: Wrexham, United Kingdom | 51-200 | Exact match | 54 contacts → |
“Orca offers flexible and adaptable call answering and live chat services that help clients manage costs effectively.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Cymphonycymphony.co.uk HQ: HQ not recorded; location: Crewe, United KingdomReported employees: 51-200 | HQ not recorded; location: Crewe, United Kingdom | 51-200 | Exact match | 52 contacts → |
“Cymphony is your 24/7 customer support partner.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | FLY PIE LTDflypie.co.uk HQ: HQ not recorded; location: London, United KingdomReported employees: 51-200 | HQ not recorded; location: London, United Kingdom | 51-200 | Exact match | 49 contacts → |
“At Fly Pie, sales outsourcing isn’t a “done-for-you” service, it’s a growth engine we build with you.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 456 company matches
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Customer service outsourcing companies: 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
443 records in the displayed employee bands.
13 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 ↗
Customer service outsourcing companies by metro
Questions about this company list
What does Exact match mean for customer service outsourcing 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 customer service outsourcing companies did RevenueBase find based in the United Kingdom?
The saved snapshot records 456 matching company records, 32,318 tracked contacts and 5,694 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
Customer service outsourcing companies by geography
- Customer service outsourcing companies based in the United States
- Customer service outsourcing companies based in Brazil
- Customer service outsourcing companies based in Spain
- Customer service outsourcing companies based in Germany
- Customer service outsourcing companies based in Canada
- Customer service outsourcing companies based in France
- Customer service outsourcing companies based in Italy
- Customer service outsourcing companies based in Mexico
- Customer service outsourcing companies based in South Africa
- Customer service outsourcing companies based in Australia
- Customer service outsourcing companies based in the Netherlands
- Customer service outsourcing companies based in Poland
Cite this list
RevenueBase Data Team. Top 25 customer service outsourcing companies based in the United Kingdom. Snapshot: September 1, 2026. https://revenuebase.ai/companies/customer-service-outsourcing-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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- Customer service outsourcing companies based in the United States
- Customer service outsourcing companies based in Brazil
- Customer service outsourcing companies based in Spain
- Customer service outsourcing companies based in Germany
- Customer service outsourcing companies based in Canada
- Customer service outsourcing companies based in France