Company lists · Data refreshed September 2026

Top 15 Virtual call centers based in the United Kingdom

RevenueBase identified 75 company matches for virtual call centers associated with the United Kingdom as of September 2026 and tracks 793 professional contacts across them, including 73 with verified work emails. London is the largest hub.

This list covers company matches for virtual call 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 14, 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 14, 2026 How this list was built
75Companies
793Contacts tracked
73Verified emails
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The 15 largest virtual call centers based in the United Kingdom

Ranked by team size
Top 15 of 75 company matches for virtual call centers based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 14, 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 matchNewcastle Upon Tyne, United KingdomHQ recorded Sep 14, 2026201-500140 contacts →

Exact match

“Echoing our clients in every conversation.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
2Exact matchBristol, United KingdomHQ recorded Sep 14, 202651-20083 contacts →

Exact match

“We are Subfero.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
3Exact matchLondon, United KingdomHQ recorded Sep 14, 202651-20062 contacts →

Exact match

“Support Adventure is an outsourcing company that specializes in customer service and support.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
4Exact matchWrexham, United KingdomHQ recorded Sep 14, 202651-20054 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 14, 2026 · View company records in RevenueBase
5Exact matchCrewe, United KingdomHQ recorded Sep 14, 202651-20052 contacts →

Exact match

“Cymphony is your 24/7 customer support partner.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
6Exact matchLondon, United KingdomHQ recorded Sep 14, 202611-5040 contacts →

Exact match

“Kingdom Vision is a medium to take your business from good to great.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
7Exact matchCroydon, United KingdomHQ recorded Sep 14, 2026501-1,00039 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 14, 2026 · View company records in RevenueBase
8Exact matchLondon, United KingdomHQ recorded Sep 14, 202651-20017 contacts →

Exact match

“VoIPstudio is a complete business phone system and scalable call center with small business pricing.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
9Exact matchLondon, United KingdomHQ recorded Sep 14, 202651-20010 contacts →

Exact match

“Indigo 21: Pioneering IT business process outsourcing since 2003.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
10Exact matchBury, United KingdomHQ recorded Sep 14, 202651-2008 contacts →

Exact match

“At Forge Solutions, we redefine call centre services with state-of-the-art technology and tailored solutions.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
11Exact matchLondon, United KingdomHQ recorded Sep 14, 20261-107 contacts →

Exact match

“At alaouico, we understand the challenges businesses face with customer interactions-whether it's managing high call volumes, ensuring timely responses, or maintaining customer…”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
12Exact matchCambridge, United KingdomHQ recorded Sep 14, 20261-107 contacts →

Exact match

“For 27 years, The Answering Service Ltd has been connecting businesses to their customers with reliable, virtual answering services worldwide.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
13Exact matchAndover, United KingdomHQ recorded Sep 14, 202611-504 contacts →

Exact match

“Angel Call Handling are award winning UK based experts in providing inbound & outbound call handling, Virtual Assistants, PA and admin support to businesses.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
14Exact matchSouthend-on-sea, United KingdomHQ recorded Sep 14, 202651-2002 contacts →

Exact match

“At Direct Call Centres, we pride ourselves on providing the best service at the best price, and we have the technology, framework and due diligence to make sure your campaign is a…”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
15Exact matchBognor Regis, United KingdomHQ recorded Sep 14, 20261-101 contacts →

Exact match

“Telephone Answering Services Live Chat Answering Customer Services Outbound calling projects Telemarketing Email Marketing Administrative Support”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase

Showing 15 of 75 virtual call centers based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 73 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Virtual call centers based in the United Kingdom at a glance

As of Sep 14, 2026
9.2%Verified-email coverage
10.6Average contacts per company
11-50Median size (employees)
32.0%Largest-city concentration · London
Sep 14, 2026Page data refreshed

Companies by employee count

1-10
20
11-50
22
51-200
20
201-500
6
501-1,000
5
1,001-5,000
1

Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 75 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with the United Kingdom whose business descriptions match “virtual call 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 73 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 14, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “virtual call centers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many virtual call centers are there based in the United Kingdom?

RevenueBase identified 75 company matches for virtual call 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?

Echo-U LTD tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most virtual call centers?

London leads with 24 company records, followed by Manchester (3) and Birmingham (2).

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 73 professional contacts with verified work emails tracked across these 75 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 14, 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.