Company lists · Data refreshed September 2026

Top 25 Professional staffing agencies based in the United Kingdom

Name: Professional staffing agencies 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 11,042 companies tracked

RevenueBase identified 11,042 professional staffing agencies headquartered in the United Kingdom as of September 2026 and tracks 224,725 professional contacts across them, including 45,623 with verified work emails and 13,748 with mobile numbers. London is the largest hub.

This list covers professional staffing agencies 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

11,042Companies

224,725Contacts tracked

45,623Verified emails

13,748Mobile numbers

Explore all 11,042 companies → Free signup · no credit card · 500 free credits

The 25 largest professional staffing agencies based in the United Kingdom

Ranked by team size

Top 25 of 11,042 professional staffing agencies 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 professional staffing agencies: 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	HAYSIndirect evidence	London, United KingdomHQ checked Sep 5, 2026	5,001-10,000	22,731
	“At Hays, we believe that the right job can transform a person's life - and the right person can transform a business.” Source: company website · checked Sep 5, 2026
2	REEDIndirect evidence	London, United KingdomHQ checked Sep 5, 2026	1,001-5,000	5,837
	“Reed is the largest family-run recruitment business in the world and we’ve been improving lives through work since 1960.” Source: company website · checked Sep 5, 2026
3	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
4	Page PersonnelIndirect evidence	Addlestone, United KingdomHQ checked Sep 5, 2026	5,001-10,000	3,202
	“Welcome to the Page Personnel company profile.” Source: company website · checked Sep 5, 2026
5	NES FircroftPartial evidence	Altrincham, United KingdomHQ checked Sep 5, 2026	1,001-5,000	2,951
	“With over 90 years’ combined experience of delivering workforce solutions to the global energy industry, NES Fircroft is proud to be the world’s leading engineering staffing…” Source: company website · checked Sep 5, 2026
6	Blue ArrowPartial evidence	London, United KingdomHQ checked Sep 5, 2026	n/a	2,341
	“Blue Arrow is the UK’s Best-Known Staffing Agency, placing tens of thousands of candidates into temporary and permanent jobs for employers in the transport, logistics, call…” Source: company website · checked Sep 5, 2026
7	PagegroupIndirect evidence	London, United KingdomHQ checked Sep 5, 2026	5,001-10,000	2,071
	“Michael Page, Page Personnel, Page Executive and Page Outsourcing are all part of PageGroup.” Source: company website · checked Sep 5, 2026
8	Antal InternationalIndirect evidence	London, United KingdomHQ checked Sep 5, 2026	1,001-5,000	1,979
	“Antal International is a global executive search organisation with over 130 offices in more than 30 countries.” Source: company website · checked Sep 5, 2026
9	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
10	Staffline Recruitment LimitedIndirect evidence	Nottingham, United KingdomHQ checked Sep 5, 2026	501-1,000	1,865
	“At Staffline, we make recruitment simple, strategic and effective.” Source: company website · checked Sep 5, 2026
11	The Best ConnectionIndirect evidence	Bromsgrove, United KingdomHQ checked Sep 5, 2026	501-1,000	1,593
	“Welcome to The Best Connection.” Source: company website · checked Sep 5, 2026
12	SearchIndirect evidence	Glasgow, United KingdomHQ checked Sep 5, 2026	501-1,000	1,429
	“Search is one of the UK’s leading multi-discipline recruitment agencies, covering more than 14 different specialisms and operating from 13 offices nationwide.” Source: company website · checked Sep 5, 2026
13	Office AngelsIndirect evidence	London, United KingdomHQ checked Sep 5, 2026	201-500	1,259
	“For 40 years now, we’ve been helping you to find the right path to a happy and successful future whether you’re a jobseeker or an employer.” Source: company website · checked Sep 5, 2026
14	Harvey NashIndirect evidence	London, United KingdomHQ checked Sep 5, 2026	5,001-10,000	1,248
	“We’re Harvey Nash, and we build amazing technology and digital teams.” Source: company website · checked Sep 5, 2026
15	Protocol EducationIndirect evidence	London, United KingdomHQ checked Sep 5, 2026	201-500	1,235
	“Protocol Education is a specialist provider of recruitment services to the education sector.” Source: company website · checked Sep 5, 2026
16	Brook StreetIndirect evidence	Uxbridge, United KingdomHQ checked Sep 5, 2026	501-1,000	1,214
	“For 75 years, the middle is where we've worked best.” Source: company website · checked Sep 5, 2026
17	Randstad UKIndirect evidence	Luton, United KingdomHQ checked Sep 5, 2026	1,001-5,000	956
	“Randstad is your partner for talent.” Source: company website · checked Sep 5, 2026
18	OFF To WorkPartial evidence	London, United KingdomHQ checked Sep 5, 2026	n/a	912
	“Casual Staffing \| Permanent Recruitment \| Temp to Perm \| Training \| Consultancy Off to Work offers more than just recruitment.” Source: company website · checked Sep 5, 2026
19	Morson TalentIndirect evidence	Manchester, United KingdomHQ checked Sep 5, 2026	1,001-5,000	909
	“With a unique 50-year heritage of innovative recruitment, Morson Talent is a business with unrivalled sector knowledge, trusted relationships, highly skilled expertise and a…” Source: company website · checked Sep 5, 2026
20	Oliver JamesPartial evidence	Manchester, United KingdomHQ checked Sep 5, 2026	501-1,000	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, 2026
21	ARC Hospitality RecruitmentIndirect evidence	Liverpool, United KingdomHQ checked Sep 5, 2026	10001+	865
	“With over 17 years of experience, we are a trusted nationwide recruitment agency specialising in providing high-quality temporary staff in an array of roles to a wide range of…” Source: company website · checked Sep 5, 2026
22	MatchtechIndirect evidence	Whiteley, United KingdomHQ checked Sep 5, 2026	201-500	754
	“At Matchtech, we do more than recruit.” Source: company website · checked Sep 5, 2026
23	FircroftPartial evidence	Warrington, United KingdomHQ checked Sep 5, 2026	501-1,000	589
	“Fircroft is now part of the NES Fircroft group - the world’s leading engineering staffing provider spanning the Oil & Gas, Power & Renewables, Infrastructure, Life Sciences…” Source: company website · checked Sep 5, 2026
24	GCSIndirect evidence	London, United KingdomHQ checked Sep 5, 2026	51-200	568
	“For over 30 years, GCS has been at the forefront of digital transformation, building vast global communities of innovators and placing them in businesses shaping tomorrow's world.” Source: company website · checked Sep 5, 2026
25	The Recruitment COIndirect evidence	Northampton, United KingdomHQ checked Sep 5, 2026	1,001-5,000	558
	“We’re THE RECRUITMENT Co.” Source: company website · checked Sep 5, 2026

Showing 25 of 11,042 professional staffing agencies based in the United Kingdom

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 45,623 reachable decision-makers.

Free signup · no credit card

See all 11,042 companies

Professional staffing agencies based in the United Kingdom at a glance

As of Sep 5, 2026

1-10Median size (employees)

LondonLargest hub · 3153 HQs

13,748Contacts with mobile numbers

Sep 5, 2026Data refreshed

Companies by employee count

1-10

6,881

11-50

2,905

51-200

855

201-500

203

501-1,000

1,001-5,000

5,001-10,000

10001+

Verified emails by last verification

0–30

42,571

31–60

2,857

61–90

90–180

180+

139

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 professional staffing agencies, 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 “professional staffing agencies”. 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 professional staffing agencies, 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, 45,623 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.

Professional staffing agencies by metro

Frequently asked

How many professional staffing agencies are there based in the United Kingdom?

RevenueBase identified 11,042 professional staffing agencies 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?

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

Which city has the most professional staffing agencies?

London leads with 3153 headquartered companies, followed by Manchester (458) and Birmingham (260).

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 45,623 verified decision-maker contacts tracked across these 11,042 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.

Ready to reach these companies? Verified emails and direct dials for all 11,042 professional staffing agencies based in the United Kingdom. Start with a free account, no credit card.

Get the full list

Related lists

Professional staffing agencies by geography

Browse the directory

Browse: Companies home · All United Kingdom lists · All Professional staffing agencies lists · New lists

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.