Company lists · Data verified August 2026

Top 25 Contact center companies based in the United Kingdom

Name: 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 319 companies tracked

There are 319 contact center companies headquartered in the United Kingdom (RevenueBase, August 2026). RevenueBase 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 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.

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 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	The Telemarketing Company	Brighton	201-500	242	39
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	We ARE Woven	Bristol	1,001-5,000	131	11
11	Step Change Outsourcing	Stevenage	201-500	115	20
12	EC Outsourcing Powered By Ison Xperiences	Sheffield	1,001-5,000	115	1
13	Rsvp Media Response LTD	London	201-500	95	22
14	Subfero	Bristol	51-200	84	2
15	FM Outsource	Bury	201-500	82	33
16	Loop Customer Management	Bradford	501-1,000	77	33
17	Connect Assist	Cardiff	201-500	73	24
18	AKIXI	Crawley	51-200	67	53
19	Callcare	London	1,001-5,000	59	13
20	Inspired Outsourcing Limited	Newcastle Upon Tyne	51-200	55	21
21	Impact Call Centre	Romsey	201-500	55	14
22	Orca Call Answering & Live Chat	Wrexham	51-200	54	12
23	Cymphony	Crewe	51-200	52	15
24	Direct Response	London	51-200	46	6
25	Chase Response	Croydon	501-1,000	39	3

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

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Contact center companies based in the United Kingdom at a glance

As of Aug 28, 2026

11-50Median size (employees)

LondonLargest hub · 67 HQs

417Contacts with mobile numbers

2Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

109

51-200

201-500

501-1,000

1,001-5,000

10001+

Contact center companies by metro

Metro	Companies
Contact center companies in London	67
Contact center companies in Manchester	17
Contact center companies in Sheffield	10
Contact center companies in Leeds	8
Contact center companies in Bristol	7
Contact center companies in Glasgow	5
Contact center companies in Birmingham	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 “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 contact center companies are there based in the United Kingdom?

There are 319 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 contact center companies?

London leads with 67 headquartered companies, 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 the top results, verified emails and direct dials included. Upgrading unlocks all 1,177 verified decision-maker contacts tracked across these 319 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.