Company lists · Data verified August 2026

Top 25 Bpo companies based in the United Kingdom

Name: Bpo 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 407 companies tracked

There are 407 bpo companies headquartered in the United Kingdom (RevenueBase, August 2026). RevenueBase tracks 50,813 professional contacts across them, including 8,457 with verified work emails and 2,316 with mobile numbers. London is the largest hub.

This list covers bpo 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.

407Companies

50,813Contacts tracked

8,457Verified emails

2,316Mobile numbers

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The 25 largest bpo companies based in the United Kingdom

Ranked by team size

Top 25 of 407 bpo 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	Capita	London	10001+	20,872	4,256
2	Firstsource	Warrington	10001+	17,273	2,483
3	Datamatics Business Solutions	Linford Wood	1,001-5,000	3,001	430
4	Convergys Intelligent Contact	Manchester	10001+	876	37
5	Liberata	London	1,001-5,000	587	175
6	Vertex Data Science	London	51-200	570	1
7	Accace	London	501-1,000	479	338
8	Sensée	London	1,001-5,000	399	186
9	ANT Marketing	Sheffield	501-1,000	328	35
10	Damco Solutions Limited	London	1,001-5,000	326	5
11	The Contact Company	Wirral	1,001-5,000	324	17
12	Ventrica	Southend-On-Sea	501-1,000	320	95
13	Response	n/a	1,001-5,000	241	67
14	Obox Solution LTD	London	201-500	132	12
15	Exquisite Solution Limited	London	501-1,000	104	4
16	Rsvp Media Response LTD	London	201-500	95	22
17	Subfero	Bristol	51-200	84	2
18	FM Outsource	Bury	201-500	82	33
19	SOLVD	Glasgow	51-200	74	36
20	Tellida Private Limited	n/a	51-200	73	17
21	Qormotho	London	51-200	63	6
22	Direct Response	London	51-200	46	6
23	Headway BPO Solutions Headway BPO Of America	Gloucester	201-500	40	1
24	Chase Response	Croydon	501-1,000	39	3
25	Sensible Group International	Manchester	201-500	36	3

Showing 25 of 407 bpo companies based in the United Kingdom

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Bpo companies based in the United Kingdom at a glance

As of Aug 28, 2026

11-50Median size (employees)

LondonLargest hub · 153 HQs

2,316Contacts with mobile numbers

98Emails re-verified in last 30 days

Companies by employee count

1-10

141

11-50

135

51-200

201-500

501-1,000

1,001-5,000

10001+

Bpo companies by metro

Metro	Companies
Bpo companies in London	153
Bpo companies in Manchester	20
Bpo companies in Birmingham	8
Bpo companies in Leeds	7
Bpo companies in Milton Keynes	6
Bpo companies in Leicester	6
Bpo companies in Reading	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 “bpo 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; 98 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 bpo companies are there based in the United Kingdom?

There are 407 bpo companies headquartered in the United Kingdom as of August 2026 (RevenueBase).

What is the largest company on this list?

Capita, headquartered in London, tops this list with the largest team on record.

Which city has the most bpo companies?

London leads with 153 headquartered companies, followed by Manchester (20) and Birmingham (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 8,457 verified decision-maker contacts tracked across these 407 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.