Company lists · Data refreshed September 2026
Top 25 Recruitment process outsourcing firms based in the United Kingdom
RevenueBase identified 2,218 recruitment process outsourcing firms headquartered in the United Kingdom as of September 2026 and tracks 27,525 professional contacts across them, including 6,114 with verified work emails. London is the largest hub.
This list covers recruitment process outsourcing firms 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 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.
The 25 largest recruitment process outsourcing firms based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 4,423 contacts → | ||||
Indirect evidence “Robert Walters is the world’s most trusted talent solutions business.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 2 | 870 contacts → | ||||
Indirect evidence “At Oliver James, we deliver flexible hiring solutions tailored to your business needs across financial services, professional services, commerce & industry.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 3 | 450 contacts → | ||||
Partial evidence “Page Executive is a global leader in executive search & recruitment.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 4 | 410 contacts → | ||||
Partial evidence “Interaction is one of the UK's fastest growing independent recruitment businesses, recognised and published as "UK's #1 General Recruiter".” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 5 | 390 contacts → | ||||
Partial evidence “Page Outsourcing was created to meet the business transformation needs of our clients.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 6 | 359 contacts → | ||||
Partial evidence “We are a global recruitment solutions company with four decades of experience.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 7 | 333 contacts → | ||||
Strong evidence “Ubique Systems is a fast growing multifaceted organization which offers a comprehensive array of outsourcing and consulting services for its customers, including recruitment…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 8 | 309 contacts → | ||||
Indirect evidence “Colvill Banks are experts in candidate research and identification.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 9 | 289 contacts → | ||||
Partial evidence “Since our establishment in Huntress has been at the forefront of recruitment across a range of specialist sectors.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 10 | 278 contacts → | ||||
Indirect evidence “Project People provides complete talent acquisition and management solutions at a global level whilst maintaining a flexible and localised approach.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 11 | 225 contacts → | ||||
Partial evidence “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: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 12 | 215 contacts → | ||||
Strong evidence “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: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 13 | 203 contacts → | ||||
Partial evidence “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: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 14 | 200 contacts → | ||||
Indirect evidence “Join Talent is a ‘talent acquisition as a service’ (TAaaS) business - dedicated to driving business scale up growth performance.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 15 | 196 contacts → | ||||
Partial evidence “Totaljobs is part of StepStone, one of the world’s leading next-generation recruitment solution providers.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 16 | 190 contacts → | ||||
Indirect evidence “Omni – Talent Is Everything At Omni, we help businesses find, attract, and retain the right people to drive long-term success.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 17 | 160 contacts → | ||||
Partial evidence “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: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 18 | 160 contacts → | ||||
Partial evidence “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: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 19 | 137 contacts → | ||||
Indirect evidence “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: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 20 | 128 contacts → | ||||
Partial evidence “HFG is a leading international recruitment consulting firm that provides specialist professionals to leading General Insurance, Life, Reinsurance, Pensions and Management…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 21 | 128 contacts → | ||||
Partial evidence “Newforce provides global recruitment and workforce staffing solutions that help organizations access skilled talent across multiple markets.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 22 | 125 contacts → | ||||
Indirect evidence “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: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 23 | 125 contacts → | ||||
Partial evidence “Skilliantech Ltd, trading as “SkillRecruit”, is a specialist IT and Engineering recruitment agency delivering comprehensive coverage of recruitment services across all industries…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 24 | 125 contacts → | ||||
Partial evidence “Formed in 2017, we’re an energetic, ambitious and award winning recruitment agency operating across 11 specialisms in the public and private sector: • Accountancy & Finance •…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 25 | 120 contacts → | ||||
Indirect evidence “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: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
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: recruitment process outsourcing firms. 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 recruitment process outsourcing firms.
- Partial evidence
- Its own public description names part of recruitment process outsourcing firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name recruitment process outsourcing firms. 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 2,218 recruitment process outsourcing firms based in the United Kingdom
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Recruitment process outsourcing firms based in the United Kingdom at a glance
As of Sep 29, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 2,218 companies.
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 firms, 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 “recruitment process outsourcing firms”. 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 recruitment process outsourcing firms), 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 recruitment process outsourcing firms, 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, 6,114 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 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.
Recruitment process outsourcing firms by metro
- Recruitment process outsourcing firms in London844
- Recruitment process outsourcing firms in Manchester96
- Recruitment process outsourcing firms in Leeds45
- Recruitment process outsourcing firms in Birmingham43
- Recruitment process outsourcing firms in Bristol32
- Recruitment process outsourcing firms in Glasgow29
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its 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 the category the list is about. Each row is rated strong evidence when the company's own description names recruitment process outsourcing firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many recruitment process outsourcing firms are there based in the United Kingdom?
RevenueBase identified 2,218 recruitment process outsourcing firms 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 firms?
London leads with 844 headquartered companies, followed by Manchester (96) and Leeds (45).
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 6,114 verified decision-maker contacts tracked across these 2,218 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 29, 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 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.
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