Company lists · Data verified August 2026

Top 25 Business process outsourcing companies based in London, United Kingdom

Name: Business process outsourcing companies based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 168 companies tracked

This directory lists 168 business process outsourcing companies based in London, United Kingdom, with business contact data for 25,124 contacts and 5,254 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.

168Companies

25,124Contacts tracked

5,254Verified emails

828Mobile numbers

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The 25 largest business process outsourcing companies based in London, United Kingdom

Ranked by team size

Top 25 of 168 business process outsourcing companies based in London, 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	Liberata	London	1,001-5,000	587	175
3	Vertex Data Science	London	51-200	570	1
4	Accace	London	501-1,000	479	338
5	Sensée	London	1,001-5,000	399	186
6	Damco Solutions Limited	London	1,001-5,000	326	5
7	GI Outsourcing	London	201-500	317	168
8	Obox Solution LTD	London	201-500	132	12
9	Exquisite Solution Limited	London	501-1,000	104	4
10	Qormotho	London	51-200	63	6
11	Direct Response	London	51-200	46	6
12	Factotum	London	11-50	39	23
13	Systemrapid	London	11-50	33	16
14	Dealist Solutions	London	51-200	16	1
15	Matlay	London	51-200	15	1
16	Capita Business Services	London	n/a	14	6
17	Shorza BPO LTD	London	11-50	14	4
18	IH Solutions	London	11-50	12	2
19	Syncogic Global Solutions	London	11-50	10	1
20	Techno Brain LTD	London	201-500	4	1
21	Löngun	London	11-50	4	1
22	VAYO	London	11-50	3	1
23	Brigade Solutions LTD	London	11-50	2	1
24	Nisray	London	11-50	2	1
25	Accace Adept	London	201-500	1	1

Showing 25 of 168 business process outsourcing companies based in London, United Kingdom

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Business process outsourcing companies based in London, United Kingdom at a glance

As of Aug 28, 2026

11-50Median size (employees)

LondonLargest hub · 160 HQs

828Contacts with mobile numbers

37Emails 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

5,001-10,000

10001+

Business process outsourcing companies by metro in the United Kingdom

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 London, 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; 37 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 168 business process outsourcing companies based in London, 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.