Company lists · Data refreshed September 2026

Top 25 Recruiting process outsourcing providers based in the United Kingdom

Name: Recruiting process outsourcing providers based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 1,612 companies tracked

RevenueBase identified 1,612 recruiting process outsourcing providers headquartered in the United Kingdom as of September 2026 and tracks 27,191 professional contacts across them, including 5,235 with verified work emails and 1,867 with mobile numbers. London is the largest hub.

This list covers recruiting process outsourcing 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. Every row shows the company's own description, how directly it supports the match, and when it was last checked. Data refreshed September 5, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 HQ checked on every row Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review

1,612Companies

27,191Contacts tracked

5,235Verified emails

1,867Mobile numbers

Explore all 1,612 companies → Free signup · no credit card · 500 free credits

The 25 largest recruiting process outsourcing providers based in the United Kingdom

Ranked by team size

Top 25 of 1,612 recruiting process outsourcing providers based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names recruiting process outsourcing providers: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	Robert WaltersIndirect evidence	London, United KingdomHQ checked Sep 5, 2026	1,001-5,000	4,423
	“Robert Walters is the world’s most trusted talent solutions business.” Source: company website · checked Sep 5, 2026
2	Avance ConsultingIndirect evidence	London, United KingdomHQ checked Sep 5, 2026	501-1,000	1,927
	“Avance Consulting is a global organization focused on delivering innovative talent solution services to some of the most renowned companies in the world, across industries that…” Source: company website · checked Sep 5, 2026
3	LorienIndirect evidence	100 Bishopsgate, United KingdomHQ checked Sep 5, 2026	201-500	536
	“Lorien is a technology, transformation and telecom talent solutions specialist.” Source: company website · checked Sep 5, 2026
4	Page OutsourcingPartial evidence	London, United KingdomHQ checked Sep 5, 2026	5,001-10,000	390
	“Page Outsourcing was created to meet the business transformation needs of our clients.” Source: company website · checked Sep 5, 2026
5	SandersonIndirect evidence	Bristol, United KingdomHQ checked Sep 5, 2026	201-500	359
	“We are a global recruitment solutions company with four decades of experience.” Source: company website · checked Sep 5, 2026
6	Penna, An LHH BrandIndirect evidence	London, United KingdomHQ checked Sep 5, 2026	201-500	342
	Source: company website · checked Sep 5, 2026
7	Ubique SystemsPartial evidence	London, United KingdomHQ checked Sep 5, 2026	501-1,000	333
	“Ubique Systems is a fast growing multifaceted organization which offers a comprehensive array of outsourcing and consulting services for its customers, including recruitment…” Source: company website · checked Sep 5, 2026
8	HuntressIndirect evidence	London, United KingdomHQ checked Sep 5, 2026	51-200	289
	“Since our establishment in Huntress has been at the forefront of recruitment across a range of specialist sectors.” Source: company website · checked Sep 5, 2026
9	Project PeopleIndirect evidence	Bristol, United KingdomHQ checked Sep 5, 2026	201-500	278
	“Project People provides complete talent acquisition and management solutions at a global level whilst maintaining a flexible and localised approach.” Source: company website · checked Sep 5, 2026
10	RethinkIndirect evidence	London, United KingdomHQ checked Sep 5, 2026	51-200	225
	“Established in 2005 by Rethink Group, we deliver recruitment strategies for the curious: those who want to surpass their competition by attracting, engaging and hiring the best…” Source: company website · checked Sep 5, 2026
11	ElevenIndirect evidence	Manchester, United KingdomHQ checked Sep 5, 2026	n/a	217
	“Eleven connects dynamic people and businesses where bold ideas will help shape the world.” Source: company website · checked Sep 5, 2026
12	CrimsonPartial evidence	Birmingham, United KingdomHQ checked Sep 5, 2026	51-200	215
	“Crimson’s IT recruitment services simplify the recruitment process, helping hiring managers find the best contract and permanent IT talent in established and emerging disciplines.” Source: company website · checked Sep 5, 2026
13	Tate RecruitmentIndirect evidence	London, United KingdomHQ checked Sep 5, 2026	51-200	203
	“Our Heritage Founded by Lady Virginia Tate in 1985, Tate Recruitment emerged with a firm vision: to be the best everywhere, all the time.” Source: company website · checked Sep 5, 2026
14	Insurance AgentIndirect evidence	London, United KingdomHQ checked Sep 5, 2026	501-1,000	203
	Source: company website · checked Sep 5, 2026
15	Join TalentIndirect evidence	Brechin, United KingdomHQ checked Sep 5, 2026	201-500	200
	“Join Talent is a ‘talent acquisition as a service’ (TAaaS) business - dedicated to driving business scale up growth performance.” Source: company website · checked Sep 5, 2026
16	TotaljobsIndirect evidence	London, United KingdomHQ checked Sep 5, 2026	201-500	196
	“Totaljobs is part of StepStone, one of the world’s leading next-generation recruitment solution providers.” Source: company website · checked Sep 5, 2026
17	Omni RMSIndirect evidence	Altrincham, United KingdomHQ checked Sep 5, 2026	51-200	190
	“Omni – Talent Is Everything At Omni, we help businesses find, attract, and retain the right people to drive long-term success.” Source: company website · checked Sep 5, 2026
18	Precision Resource Group PRGIndirect evidence	Bristol, United KingdomHQ checked Sep 5, 2026	51-200	175
	“Precision Resource Group (PRG) is a Global Leader in Recruitment and Talent Solutions.” Source: company website · checked Sep 5, 2026
19	BPS WorldIndirect evidence	Maidenhead, United KingdomHQ checked Sep 5, 2026	51-200	164
	“We're providing the people who will design and build tomorrow’s world.” Source: company website · checked Sep 5, 2026
20	The SR GroupIndirect evidence	London, United KingdomHQ checked Sep 5, 2026	201-500	160
	“We are The SR Group, a global recruitment company comprising specialist search and recruitment consultancies Brewer Morris, Carter Murray, Frazer Jones and Taylor Root.” Source: company website · checked Sep 5, 2026
21	Star PeopleIndirect evidence	Rugby, United KingdomHQ checked Sep 5, 2026	501-1,000	160
	“Part of Uniphar, we are the strategic recruitment and outsourced partner for pharma, medtech, and biotech companies looking to maximise their commercial success through tailored…” Source: company website · checked Sep 5, 2026
22	Ixceed SolutionsIndirect evidence	London, United KingdomHQ checked Sep 5, 2026	201-500	137
	“iXceed Solutions is a global, end-to-end Talent Solutions, RPO, EOR, Enterprise Services, and Digital Transformation partner trusted by Fortune 100 and high-growth organizations…” Source: company website · checked Sep 5, 2026
23	Leap29Indirect evidence	Wilmslow, United KingdomHQ checked Sep 5, 2026	51-200	132
	“Leap29 is a global people partner, specialising in recruitment and expansion services to support businesses entering new international markets.” Source: company website · checked Sep 5, 2026
24	Newforce Global ServicesIndirect evidence	London, United KingdomHQ checked Sep 5, 2026	201-500	128
	“Newforce provides global recruitment and workforce staffing solutions that help organizations access skilled talent across multiple markets.” Source: company website · checked Sep 5, 2026
25	Amberjack GlobalIndirect evidence	Newbury, United KingdomHQ checked Sep 5, 2026	51-200	125
	“Amberjack is a global leader in Early Careers and Volume Hiring, dedicated to helping organisations attract, assess, select, and develop the talent they need to succeed in a…” Source: company website · checked Sep 5, 2026

Showing 25 of 1,612 recruiting process outsourcing providers based in the United Kingdom

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Recruiting process outsourcing providers based in the United Kingdom at a glance

As of Sep 5, 2026

1-10Median size (employees)

LondonLargest hub · 637 HQs

1,867Contacts with mobile numbers

Sep 5, 2026Data refreshed

Companies by employee count

1-10

1,038

11-50

385

51-200

127

201-500

501-1,000

1,001-5,000

5,001-10,000

Verified emails by last verification

0–30

4,876

31–60

325

61–90

90–180

180+

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 recruiting process outsourcing providers, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 “recruiting process outsourcing providers”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among recruiting process outsourcing providers, 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 an evidence 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, 5,235 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 September 5, 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.

Recruiting process outsourcing providers by metro

Frequently asked

How many recruiting process outsourcing providers are there based in the United Kingdom?

RevenueBase identified 1,612 recruiting process outsourcing providers headquartered in the United Kingdom as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

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

Which city has the most recruiting process outsourcing providers?

London leads with 637 headquartered companies, followed by Manchester (61) and Birmingham (33).

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 5,235 verified decision-maker contacts tracked across these 1,612 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 5, 2026.

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Recruiting process outsourcing providers by geography

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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 SmartSearch, 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.