Company lists · Data verified August 2026

Top 25 Contact center platforms based in the United Kingdom

Name: Contact center platforms 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 252 companies tracked

There are 252 contact center platforms headquartered in the United Kingdom (RevenueBase, August 2026). RevenueBase tracks 9,400 professional contacts across them, including 3,291 with verified work emails and 1,002 with mobile numbers. London is the largest hub.

This list covers contact center platforms 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.

252Companies

9,400Contacts tracked

3,291Verified emails

1,002Mobile numbers

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The 25 largest contact center platforms based in the United Kingdom

Ranked by team size

Top 25 of 252 contact center platforms 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	8x8	Aylesbury	1,001-5,000	2,427	1,335
2	RESQ	Seaham	1,001-5,000	493	149
3	IST Networks	London	201-500	456	206
4	Imimobile Part Of Webex	London	1,001-5,000	436	54
5	The Contact Company	Wirral	1,001-5,000	324	17
6	Kaleyra	London	501-1,000	241	76
7	Vocalcom	Uk	201-500	233	119
8	Calltower	London	201-500	226	128
9	Clearanswer Call Centres	Leeds	501-1,000	202	24
10	3clogic	London	51-200	189	120
11	Echo-U LTD	Newcastle Upon Tyne	201-500	140	7
12	Route 101 LTD	Bristol	51-200	135	93
13	We ARE Woven	Bristol	1,001-5,000	131	11
14	QPC	Birmingham	51-200	116	26
15	Daktela	Chester	51-200	98	72
16	FM Outsource	Bury	201-500	82	33
17	Business Systems	London	51-200	71	43
18	AKIXI	Crawley	51-200	67	53
19	Maxcontact	Manchester	51-200	62	43
20	Callcare	London	1,001-5,000	59	13
21	Bulb Tech	Hoddesdon	51-200	57	50
22	Contact WEB LTD	Banbury	51-200	57	38
23	Impact Call Centre	Romsey	201-500	55	14
24	Teleware PLC	Easingwold	51-200	49	25
25	Customerknect	Seaham	51-200	45	20

Showing 25 of 252 contact center platforms based in the United Kingdom

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Contact center platforms based in the United Kingdom at a glance

As of Aug 28, 2026

11-50Median size (employees)

LondonLargest hub · 64 HQs

1,002Contacts with mobile numbers

6Emails 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

Contact center platforms by metro

Metro	Companies
Contact center platforms in London	64
Contact center platforms in Manchester	16
Contact center platforms in Bristol	7
Contact center platforms in Glasgow	7
Contact center platforms in Leeds	6
Contact center platforms in Sheffield	5
Contact center platforms in Birmingham	4

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 platforms”, 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; 6 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 platforms are there based in the United Kingdom?

There are 252 contact center platforms headquartered in the United Kingdom as of August 2026 (RevenueBase).

What is the largest company on this list?

8x8, headquartered in Aylesbury, tops this list with the largest team on record.

Which city has the most contact center platforms?

London leads with 64 headquartered companies, followed by Manchester (16) and Bristol (7).

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 3,291 verified decision-maker contacts tracked across these 252 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.