Company lists · Data refreshed 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 Data refreshed Aug 29, 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 29, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase Smart Search rating on every row Refreshed Aug 29, 2026 86% judged on-target in blind review

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 refreshed Aug 29, 2026. RevenueBase Smart Search rates how each company's information relates to business process outsourcing companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Capita	Partial evidence	London, United Kingdom	10001+	20,872 contacts →
	Partial evidence “Capita is an outsourcer, helping clients across the public and private sectors run complex business processes more efficiently, creating better consumer experiences.” Source: RevenueBase Database · checked Aug 29, 2026
2	Firstsource	Indirect evidence	Warrington, United Kingdom	10001+	17,273 contacts →
	Indirect evidence “Established in 2001, Firstsource Solutions Limited, an RP-Sanjiv Goenka Group company, is a specialized BPS partner with hyper-focused, domain-centered teams and cutting-edge…” Source: RevenueBase Database · checked Aug 29, 2026
3	Datamatics Business Solutions	Partial evidence	Linford Wood, United Kingdom	1,001-5,000	3,001 contacts →
	Partial evidence “Datamatics Business Solutions is a global Business Process Management (BPM) company delivering technology-led and AI-enabled solutions that help organizations improve efficiency…” Source: RevenueBase Database · checked Aug 29, 2026
4	Convergys Intelligent Contact	Indirect evidence	Manchester, United Kingdom	10001+	876 contacts →
	Indirect evidence “At Convergys Intelligent Contact, we build sustainable revenue streams for our clients.” Source: RevenueBase Database · checked Aug 29, 2026
5	Vertex Data Science	Partial evidence	London, United Kingdom	51-200	570 contacts →
	Partial evidence “Vertex is a leader in BPO and Customer Management Outsourcing, serving over 200 clients worldwide across many sectors.” Source: RevenueBase Database · checked Aug 29, 2026
6	Accace	Partial evidence	London, United Kingdom	501-1,000	479 contacts →
	Partial evidence “Accace is a proactive consultancy and outsourcing partner with over 20 years of experience who bridges the gap between needs and solutions.” Source: RevenueBase Database · checked Aug 29, 2026
7	Outbooks	Partial evidence	London, United Kingdom	201-500	475 contacts →
	Partial evidence “Outbooks is a leading provider of outsourcing services to accounting and bookkeeping firms.” Source: RevenueBase Database · checked Aug 29, 2026
8	Sensée	Indirect evidence	London, United Kingdom	1,001-5,000	399 contacts →
	Indirect evidence “In 2004, Sensée was founded on a simple principle: bring work to people, not people to work.” Source: RevenueBase Database · checked Aug 29, 2026
9	Damco Solutions Limited	Strong evidence	London, United Kingdom	1,001-5,000	326 contacts →
	Strong evidence “Damco Solutions Limited is a specialist software solutions and services & a business process outsourcing services company.” Source: RevenueBase Database · checked Aug 29, 2026
10	GI Outsourcing	Partial evidence	London, United Kingdom	201-500	317 contacts →
	Partial evidence “GI Outsourcing is a UK-based accountants outsourcing firm.” Source: RevenueBase Database · checked Aug 29, 2026
11	Response	Partial evidence	United Kingdom	1,001-5,000	241 contacts →
	Partial evidence “Response provides smart outsourcing solutions that combine high-performing talent, operational excellence, scalable talent, and technology-enabled service delivery.” Source: RevenueBase Database · checked Aug 29, 2026
12	Obox Solution LTD	Indirect evidence	London, United Kingdom	201-500	132 contacts →
	Indirect evidence “At Obox Solution Ltd, we support accounting firms and mid-market businesses by providing tailored virtual staffing solutions for bookkeeping, payroll, CFO services, tax, financial…” Source: RevenueBase Database · checked Aug 29, 2026
13	Exquisite Solution Limited	Strong evidence	London, United Kingdom	501-1,000	104 contacts →
	Strong evidence “Celebrating Excellence with Exquisite Solution Limited – Uganda's foremost Business Process Outsourcing authority, where excellence knows no bounds.” Source: RevenueBase Database · checked Aug 29, 2026
14	SOLVD	Indirect evidence	Glasgow, United Kingdom	51-200	74 contacts →
	Indirect evidence “Streamline your business with our bespoke support services.” Source: RevenueBase Database · checked Aug 29, 2026
15	Tellida Private Limited	Strong evidence	United Kingdom	51-200	73 contacts →
	Strong evidence “Tellida (Pvt) Ltd is a global outsourcing company providing Legal Process Outsourcing (LPO), Finance & Accounting Outsourcing (FAO), Contact Centre services, and Remote Business…” Source: RevenueBase Database · checked Aug 29, 2026
16	Direct Response	Partial evidence	London, United Kingdom	51-200	46 contacts →
	Partial evidence “Direct Response can provide outsourcing of voice, data and contact centre services for organisation from a global business to a one-man operation, delivering outstanding service…” Source: RevenueBase Database · checked Aug 29, 2026
17	Orion Call Centre	Partial evidence	United Kingdom	51-200	41 contacts →
	Partial evidence “From planning & recruiting to training & delivery, we provide unbeatable outsourcing services that are not only cost effective but surpass the average UK skill set.” Source: RevenueBase Database · checked Aug 29, 2026
18	Headway BPO Solutions Headway BPO Of America	Partial evidence	Gloucester, United Kingdom	201-500	40 contacts →
	Partial evidence “Headway BPO Solutions/Headway BPO of America is an international service provider that offers a diverse range of outsourcing, technology, and consulting services.” Source: RevenueBase Database · checked Aug 29, 2026
19	Sensible Group International	Indirect evidence	Manchester, United Kingdom	201-500	36 contacts →
	Indirect evidence “BPO & Technology Solutions \| Contact Center Optimization \| Scalable Operations As a leader at Sensible Group, I specialize in delivering high-performance BPO solutions tailored…” Source: RevenueBase Database · checked Aug 29, 2026
20	Taskaler	Strong evidence	Uk, United Kingdom	51-200	35 contacts →
	Strong evidence “Taskaler is a business process outsourcing (BPO) provider specialising in customer services and back-office support for retail and eCommerce.” Source: RevenueBase Database · checked Aug 29, 2026
21	Kindcare Services UK LTD	Indirect evidence	Eastbourne, United Kingdom	51-200	31 contacts →
	Indirect evidence “Started operations in the UK in the year 1990 and incorporated as “KINDCARE LIMITED”.” Source: RevenueBase Database · checked Aug 29, 2026
22	SNT Group	Indirect evidence	Leeds, United Kingdom	51-200	26 contacts →
	Indirect evidence “SNT Group is a service led business, providing our clients with best of breed technologies and services.” Source: RevenueBase Database · checked Aug 29, 2026
23	Servicesnow Group	Indirect evidence	Manchester, United Kingdom	201-500	25 contacts →
	Indirect evidence “Businesses today are under more pressure than ever before to reduce risk, drive efficiency and create consistency.” Source: RevenueBase Database · checked Aug 29, 2026
24	AGO Outsourcing	Partial evidence	East Kilbride, United Kingdom	51-200	19 contacts →
	Partial evidence “AGO Outsourcing is a leading provider of outsourced business services, including inbound and outbound customer service and outbound sales as well as social media engagement…” Source: RevenueBase Database · checked Aug 29, 2026
25	Dealist Solutions	Partial evidence	London, United Kingdom	51-200	16 contacts →
	Partial evidence “Dealist.solutions, part of "Pivot" LTD, provides outsourcing solutions in the interests, on the instructions and on behalf of the General contractor.” Source: RevenueBase Database · checked Aug 29, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: business process outsourcing companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names business process outsourcing companies.
Partial evidence: Its own public description names part of business process outsourcing companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name business process outsourcing companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

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 29, 2026

17.3%Verified-email coverage

4.6%Mobile-number coverage

118.2Average contacts per company

11-50Median size (employees)

37.8%Largest-city concentration · London

Aug 29, 2026Page data refreshed

Companies by employee count

1-10

169

11-50

144

51-200

201-500

501-1,000

1,001-5,000

10001+

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among business process outsourcing companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in the United Kingdom whose own description of what they do matches “business process outsourcing companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names business process outsourcing companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among business process outsourcing companies, and records with no verified work email. Companies headquartered outside United Kingdom are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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: Every listed company carries at least one verified work email, 8,650 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on August 29, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Business process outsourcing companies by metro

Business process outsourcing companies in London160

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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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 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 with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.