Company lists · Data refreshed September 2026

Top 25 Contact center companies based in the United Kingdom

RevenueBase identified 319 company matches for contact center companies associated with the United Kingdom as of September 2026 and tracks 8,392 professional contacts across them, including 1,177 with verified work emails and 417 with mobile numbers. London is the largest hub.

This list covers company matches for contact center 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 1, 2026 How this list was built
319Companies
8,392Contacts tracked
1,177Verified emails
417Mobile numbers
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The 25 largest contact center companies based in the United Kingdom

Ranked by team size
Top 25 of 319 company matches for contact center companies based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 1, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchManchester, United Kingdom10001+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
2Exact matchSeaham, United Kingdom1,001-5,000493 contacts →

Exact match

“Give your customers a voice with ResQ.”

Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
3Exact matchSheffield, United Kingdom501-1,000328 contacts →

Exact match

“Skilled talent, proven processes and leading technology.”

Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
4Exact matchWirral, United Kingdom1,001-5,000324 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
5Exact matchBrighton, United Kingdom201-500242 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
6Exact matchHemel Hempstead, United Kingdom201-500202 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
7Exact matchLeeds, United Kingdom501-1,000202 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
8Exact matchRichmond, United Kingdom501-1,000159 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
9Exact matchNewcastle Upon Tyne, United Kingdom201-500140 contacts →

Exact match

“Echoing our clients in every conversation.”

Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
10Exact matchBristol, United Kingdom1,001-5,000131 contacts →

Exact match

“Dedicated and shared contact centre outsourcing operations.”

Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
11Exact matchStevenage, United Kingdom201-500115 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
12Exact matchSheffield, United Kingdom1,001-5,000115 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
13Exact matchLondon, United Kingdom201-50095 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
14Exact matchBristol, United Kingdom51-20084 contacts →

Exact match

“We are Subfero.”

Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
15Exact matchBury, United Kingdom201-50082 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
16Exact matchBradford, United Kingdom501-1,00077 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
17Exact matchCardiff, United Kingdom201-50073 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
18Exact matchCrawley, United Kingdom51-20067 contacts →

Exact match

“We provide real-time CX (Customer Experience) insights that enhance Service Providers value-added portfolio, helping them drive revenue growth in the cloud communications market.”

Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
19Exact matchLondon, United Kingdom1,001-5,00059 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
20Exact matchNewcastle Upon Tyne, United Kingdom51-20055 contacts →

Exact match

“Hello, we’re Inspired.”

Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
21Exact matchRomsey, United Kingdom201-50055 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
22Exact matchWrexham, United Kingdom51-20054 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
23Exact matchCrewe, United Kingdom51-20052 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
24Exact matchLondon, United Kingdom51-20046 contacts →

Exact match

“Direct Response can provide outsourcing of voice, data and contact centre services for organisation from a global business to a one-man operation, delivering outstanding service…”

Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase
25Exact matchCroydon, United Kingdom501-1,00039 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

Showing 25 of 319 contact center companies based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 1,177 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Contact center companies based in the United Kingdom at a glance

As of Sep 1, 2026
14.0%Verified-email coverage
5.0%Mobile-number coverage
26.3Average contacts per company
11-50Median size (employees)
21.0%Largest-city concentration · London
Sep 1, 2026Page data refreshed

Companies by employee count

1-10
87
11-50
109
51-200
69
201-500
30
501-1,000
11
1,001-5,000
9
10001+
2

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 center companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every displayed company carries at least one verified work email. RevenueBase tracks 1,177 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 center 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 “contact center companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many contact center companies are there based in the United Kingdom?

RevenueBase identified 319 company matches for contact center 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?

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

Which city has the most contact center companies?

London leads with 67 company records, followed by Manchester (17) and Sheffield (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 1,177 professional contacts with verified work emails tracked across these 319 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.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.