Company lists · Data verified August 2026

Top 25 Contact center platform providers based in the United Kingdom

There are 235 contact center platform providers headquartered in the United Kingdom (RevenueBase, August 2026). RevenueBase tracks 8,835 professional contacts across them, including 3,095 with verified work emails and 961 with mobile numbers. London is the largest hub.

This list covers contact center platform providers 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.

235Companies
8,835Contacts tracked
3,095Verified emails
961Mobile numbers
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The 25 largest contact center platform providers based in the United Kingdom

Ranked by team size
Top 25 of 235 contact center platform providers 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.
#CompanyHQEmployeesContactsVerified emails
18x8Aylesbury1,001-5,0002,4271,335
2RESQSeaham1,001-5,000493149
3IST NetworksLondon201-500456206
4Imimobile Part Of WebexLondon1,001-5,00043654
5The Contact CompanyWirral1,001-5,00032417
6VocalcomUk201-500233119
7CalltowerLondon201-500226128
8Clearanswer Call CentresLeeds501-1,00020224
93clogicLondon51-200189120
10Echo-U LTDNewcastle Upon Tyne201-5001407
11Route 101 LTDBristol51-20013593
12We ARE WovenBristol1,001-5,00013111
13QPCBirmingham51-20011626
14DaktelaChester51-2009872
15FM OutsourceBury201-5008233
16Business SystemsLondon51-2007143
17AKIXICrawley51-2006753
18MaxcontactManchester51-2006243
19CallcareLondon1,001-5,0005913
20Bulb TechHoddesdon51-2005750
21Impact Call CentreRomsey201-5005514
22Teleware PLCEasingwold51-2004925
23CustomerknectSeaham51-2004520
24EffebotLondon201-500403
25Chase ResponseCroydon501-1,000393

Showing 25 of 235 contact center platform providers based in the United Kingdom

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Contact center platform providers based in the United Kingdom at a glance

As of Aug 28, 2026
11-50Median size (employees)
LondonLargest hub · 56 HQs
961Contacts with mobile numbers
5Emails re-verified in last 30 days

Companies by employee count

1-10
72
11-50
77
51-200
46
201-500
25
501-1,000
5
1,001-5,000
9
10001+
1

Contact center platform providers by metro

MetroCompanies
Contact center platform providers in London56
Contact center platform providers in Manchester15
Contact center platform providers in Glasgow8
Contact center platform providers in Bristol6
Contact center platform providers in Leeds5
Contact center platform providers in Sheffield5
Contact center platform providers in Birmingham4

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 platform providers”, 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; 5 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 platform providers are there based in the United Kingdom?

There are 235 contact center platform providers 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 platform providers?

London leads with 56 headquartered companies, followed by Manchester (15) and Glasgow (8).

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 3,095 verified decision-maker contacts tracked across these 235 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.