Company lists · Data verified August 2026

Top 25 Business process outsourcing companies based in the United Kingdom

Name: Business process outsourcing 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 423 companies tracked

This directory lists 423 business process outsourcing companies based in the United Kingdom, with business contact data for 49,999 contacts and 8,650 email addresses. As of August 2026, London is the single most-represented city among the companies on the list.

Business process outsourcing companies provide outsourced business functions, such as customer support, finance, human resources, data processing, and administrative operations, for other organizations. This list covers companies that provide business process outsourcing services to other organizations, including outsourced operational, administrative, and customer-facing functions. Ranked by team size, largest first. Data current as of August 28, 2026.

423Companies

49,999Contacts tracked

8,650Verified emails

2,301Mobile numbers

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The 25 largest business process outsourcing companies based in the United Kingdom

Ranked by team size

Top 25 of 423 business process outsourcing 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	Vertex Data Science	London	51-200	570	1
6	Accace	London	501-1,000	479	338
7	Outbooks	London	201-500	475	39
8	Sensée	London	1,001-5,000	399	186
9	Damco Solutions Limited	London	1,001-5,000	326	5
10	GI Outsourcing	London	201-500	317	168
11	Response	n/a	1,001-5,000	241	67
12	Obox Solution LTD	London	201-500	132	12
13	Exquisite Solution Limited	London	501-1,000	104	4
14	SOLVD	Glasgow	51-200	74	36
15	Tellida Private Limited	n/a	51-200	73	17
16	Direct Response	London	51-200	46	6
17	Orion Call Centre	n/a	51-200	41	3
18	Headway BPO Solutions Headway BPO Of America	Gloucester	201-500	40	1
19	Sensible Group International	Manchester	201-500	36	3
20	Taskaler	Uk	51-200	35	3
21	Kindcare Services UK LTD	Eastbourne	51-200	31	5
22	SNT Group	Leeds	51-200	26	1
23	Servicesnow Group	Manchester	201-500	25	7
24	AGO Outsourcing	East Kilbride	51-200	19	1
25	Dealist Solutions	London	51-200	16	1

Showing 25 of 423 business process outsourcing companies based in the United Kingdom

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Business process outsourcing companies based in the United Kingdom at a glance

As of Aug 28, 2026

11-50Median size (employees)

LondonLargest hub · 160 HQs

2,301Contacts with mobile numbers

99Emails re-verified in last 30 days

Companies by employee count

1-10

169

11-50

144

51-200

201-500

501-1,000

1,001-5,000

10001+

Business process outsourcing companies by metro

Metro	Companies
Business process outsourcing companies in London	160
Business process outsourcing companies in Manchester	22
Business process outsourcing companies in Birmingham	8
Business process outsourcing companies in Leeds	7
Business process outsourcing companies in Leicester	5
Business process outsourcing companies in Milton Keynes	5
Business process outsourcing companies in Bristol	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 “business process outsourcing 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; 99 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

What are business process outsourcing companies?

Business process outsourcing companies handle selected business functions for other organizations, including customer support, finance, human resources, data processing, and administration.

How many business process outsourcing companies are in this directory?

This directory includes 423 business process outsourcing companies based in the United Kingdom.

Which city has the most business process outsourcing companies on the list?

London is the single most-represented city among the companies on the list.

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Related lists

Business process outsourcing companies by geography

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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.