Company lists · Data refreshed September 2026
Top 25 Recruitment process outsourcing companies based in the United Kingdom
RevenueBase identified 1,337 recruitment process outsourcing companies headquartered in the United Kingdom as of September 2026 and tracks 20,558 professional contacts across them, including 3,933 with verified work emails and 1,470 with mobile numbers. London is the largest hub.
This list covers recruitment process outsourcing 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. 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.
The 25 largest recruitment process outsourcing companies based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 4,423 | ||||
“Robert Walters is the world’s most trusted talent solutions business.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 2 | 870 | ||||
“At Oliver James, we deliver flexible hiring solutions tailored to your business needs across financial services, professional services, commerce & industry.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 3 | 390 | ||||
“Page Outsourcing was created to meet the business transformation needs of our clients.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 4 | 359 | ||||
“We are a global recruitment solutions company with four decades of experience.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 5 | Ubique SystemsStrong evidence | 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, 2026Thanks. The Data Team will review it. | |||||
| 6 | 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, 2026Thanks. The Data Team will review it. | |||||
| 7 | 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, 2026Thanks. The Data Team will review it. | |||||
| 8 | 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, 2026Thanks. The Data Team will review it. | |||||
| 9 | 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, 2026Thanks. The Data Team will review it. | |||||
| 10 | 196 | ||||
“Totaljobs is part of StepStone, one of the world’s leading next-generation recruitment solution providers.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 11 | 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, 2026Thanks. The Data Team will review it. | |||||
| 12 | The SR GroupPartial evidence | 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, 2026Thanks. The Data Team will review it. | |||||
| 13 | 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, 2026Thanks. The Data Team will review it. | |||||
| 14 | Ixceed SolutionsIndirect evidence | 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, 2026Thanks. The Data Team will review it. | |||||
| 15 | Newforce Global ServicesPartial evidence | 128 | |||
“Newforce provides global recruitment and workforce staffing solutions that help organizations access skilled talent across multiple markets.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 16 | 125 | ||||
“Skilliantech Ltd, trading as “SkillRecruit”, is a specialist IT and Engineering recruitment agency delivering comprehensive coverage of recruitment services across all industries…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 17 | 120 | ||||
“Talent Solutions combines ManpowerGroup's leading global offerings RPO, TAPFIN-MSP and Right Management to provide end-to-end, data-driven capabilities across the talent lifecycle.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 18 | 114 | ||||
“Different skillset.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 19 | 109 | ||||
“Nicoll Curtin is an award-winning recruitment company specialising in technology and change verticals.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 20 | Talent WorksIndirect evidence | 103 | |||
“At Talent Works, we’re changing the way RPO & MSP programs are accessed, delivered and deployed - delivering smarter, scalable talent solutions to help you build your future…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 21 | Solvex SolutionsStrong evidence | 103 | |||
“we redefine business process outsourcing, empowering companies to broaden their horizons.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 22 | 99 | ||||
“We’ve got a lot to offer our customers; global reach, local expertise, bags of commitment and a huge degree of flexibility and know-how.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 23 | 98 | ||||
“We provide the latest ATS recruitment software and a recruitment process outsourcing service, supporting over 800 clients across the UK to reduce costs and improve the efficiency…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 24 | Hyphen Workforce SolutionsStrong evidence | 92 | |||
“Hyphen is an industry leader in the fields of Recruitment Process Outsourcing (RPO) and Managed Service Programmes (MSP).” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 25 | 91 | ||||
“We are an executive recruitment firm based in the City of London and are specialists in the search and selection of professionals in Technology, Digital & RPA, BPO, Shared…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 1,337 recruitment process outsourcing companies based in the United Kingdom
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Recruitment process outsourcing companies based in the United Kingdom at a glance
As of Sep 5, 2026Companies by employee count
Verified emails by last verification
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 recruitment process outsourcing companies, 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 “recruitment process outsourcing companies”. 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 recruitment 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 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, 3,933 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.
Recruitment process outsourcing companies by metro
Frequently asked
How many recruitment process outsourcing companies are there based in the United Kingdom?
RevenueBase identified 1,337 recruitment process outsourcing companies 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 recruitment process outsourcing companies?
London leads with 503 headquartered companies, followed by Manchester (56) and Leeds (28).
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 3,933 verified decision-maker contacts tracked across these 1,337 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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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.
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