Company lists · Data verified August 2026

Top 25 Customer contact center companies based in the United Kingdom

Name: Customer contact center companies 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 261 companies tracked

There are 261 customer contact center companies headquartered in the United Kingdom (RevenueBase, August 2026). RevenueBase tracks 8,249 professional contacts across them, including 1,184 with verified work emails and 403 with mobile numbers. London is the largest hub.

This list covers customer contact center companies 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.

261Companies

8,249Contacts tracked

1,184Verified emails

403Mobile numbers

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The 25 largest customer contact center companies based in the United Kingdom

Ranked by team size

Top 25 of 261 customer contact center companies 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	RESQ	Seaham	1,001-5,000	493	149
3	ANT Marketing	Sheffield	501-1,000	328	35
4	The Contact Company	Wirral	1,001-5,000	324	17
5	Response	n/a	1,001-5,000	241	67
6	ECKOH	Hemel Hempstead	201-500	202	124
7	Clearanswer Call Centres	Leeds	501-1,000	202	24
8	Interact Contact Centres	Richmond	501-1,000	159	75
9	Echo-U LTD	Newcastle Upon Tyne	201-500	140	7
10	Route 101 LTD	Bristol	51-200	135	93
11	We ARE Woven	Bristol	1,001-5,000	131	11
12	Step Change Outsourcing	Stevenage	201-500	115	20
13	EC Outsourcing Powered By Ison Xperiences	Sheffield	1,001-5,000	115	1
14	Rsvp Media Response LTD	London	201-500	95	22
15	Subfero	Bristol	51-200	84	2
16	FM Outsource	Bury	201-500	82	33
17	Loop Customer Management	Bradford	501-1,000	77	33
18	Connect Assist	Cardiff	201-500	73	24
19	Callcare	London	1,001-5,000	59	13
20	Contact WEB LTD	Banbury	51-200	57	38
21	Inspired Outsourcing Limited	Newcastle Upon Tyne	51-200	55	21
22	Impact Call Centre	Romsey	201-500	55	14
23	Orca Call Answering & Live Chat	Wrexham	51-200	54	12
24	Direct Response	London	51-200	46	6
25	Orion Call Centre	n/a	51-200	41	3

Showing 25 of 261 customer contact center companies based in the United Kingdom

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Customer contact center companies based in the United Kingdom at a glance

As of Aug 28, 2026

11-50Median size (employees)

LondonLargest hub · 49 HQs

403Contacts with mobile numbers

2Emails 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 contact center companies by metro

Metro	Companies
Customer contact center companies in London	49
Customer contact center companies in Manchester	15
Customer contact center companies in Sheffield	10
Customer contact center companies in Bristol	8
Customer contact center companies in Glasgow	7
Customer contact center companies in Birmingham	5
Customer contact center companies in Leeds	5

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 contact center companies”, 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; 2 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 contact center companies are there based in the United Kingdom?

There are 261 customer contact center companies 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 contact center companies?

London leads with 49 headquartered companies, followed by Manchester (15) and Sheffield (10).

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 1,184 verified decision-maker contacts tracked across these 261 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.

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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.