Company lists · Data verified August 2026

Top 25 Customer retention call centers based in the United Kingdom

Name: Customer retention call centers based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 70 companies tracked

There are 70 customer retention call centers headquartered in the United Kingdom (RevenueBase, August 2026). RevenueBase tracks 3,269 professional contacts across them, including 335 with verified work emails and 166 with mobile numbers. London is the largest hub.

This list covers customer retention call centers headquartered in the United Kingdom, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

70Companies

3,269Contacts tracked

335Verified emails

166Mobile numbers

Unlock all 70 companies Free account · no credit card · 2 minutes

The 25 largest customer retention call centers based in the United Kingdom

Ranked by team size

Top 25 of 70 customer retention call centers based in the United Kingdom, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Convergys Intelligent Contact	Manchester	10001+	876	37
2	Vertex Data Science	London	51-200	570	1
3	The Contact Company	Wirral	1,001-5,000	324	17
4	Response	n/a	1,001-5,000	241	67
5	Clearanswer Call Centres	Leeds	501-1,000	202	24
6	We ARE Woven	Bristol	1,001-5,000	131	11
7	Step Change Outsourcing	Stevenage	201-500	115	20
8	EC Outsourcing Powered By Ison Xperiences	Sheffield	1,001-5,000	115	1
9	FM Outsource	Bury	201-500	82	33
10	Callcare	London	1,001-5,000	59	13
11	Contact WEB LTD	Banbury	51-200	57	38
12	Inspired Outsourcing Limited	Newcastle Upon Tyne	51-200	55	21
13	Impact Call Centre	Romsey	201-500	55	14
14	Chase Response	Croydon	501-1,000	39	3
15	Chord UK LTD	Frome	11-50	15	5
16	Real Calling	London	11-50	10	7
17	Prospecting Dynamics	Nottingham	11-50	8	4
18	Alaouico	London	1-10	7	4
19	Interactive Marketing UK Limited	Cheam	51-200	6	4
20	Pressplay Call Centre	Barnstaple	51-200	5	2
21	Connect Worldwide Services	Bristol	11-50	5	1
22	CS Cloud Consulting	n/a	1-10	5	1
23	MNT Limited	England	51-200	4	2
24	BDM Talk	Burgess Hill	51-200	2	2
25	Mellion Consulting	Maidenhead	1-10	2	2

Showing 25 of 70 customer retention call centers based in the United Kingdom

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 335 reachable decision-makers.

Free account · no credit card

See all 70 companies

Customer retention call centers based in the United Kingdom at a glance

As of Aug 28, 2026

11-50Median size (employees)

LondonLargest hub · 16 HQs

166Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

10001+

Customer retention call centers by metro

Metro	Companies
Customer retention call centers in London	16
Customer retention call centers in Bristol	4
Customer retention call centers in Manchester	2
Customer retention call centers in Newbury	2
Customer retention call centers in Newcastle Upon Tyne	2
Customer retention call centers in Bradford	2
Customer retention call centers in Sheffield	2

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “customer retention call centers”, with match quality audited by blind human judging, and headquartered in the United Kingdom.
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: Contact records re-verify on a rolling cadence; 0 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

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

There are 70 customer retention call centers headquartered in the United Kingdom as of August 2026 (RevenueBase).

What is the largest company on this list?

Convergys Intelligent Contact, headquartered in Manchester, tops this list with the largest team on record.

Which city has the most customer retention call centers?

London leads with 16 headquartered companies, followed by Bristol (4) and Manchester (2).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 335 verified decision-maker contacts tracked across these 70 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

Ready to reach these companies? Verified emails and direct dials for all 70 customer retention call centers based in the United Kingdom. Start with a free account, no credit card.

Get the full list

Related lists

Customer retention call centers by geography

Browse the directory

Browse: Companies home · All United Kingdom lists · All Customer retention call centers lists · New lists

About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.