Company lists · Data refreshed September 2026

Top 25 International staffing companies based in the United Kingdom

Name: International staffing companies based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 4, 2026 7,951 companies tracked

RevenueBase identified 7,951 international staffing companies headquartered in the United Kingdom as of September 2026 and tracks 121,623 professional contacts across them, including 25,421 with verified work emails and 7,919 with mobile numbers. London is the largest hub.

This list covers international staffing 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 4, 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 4, 2026 86% judged on-target in blind review

7,951Companies

121,623Contacts tracked

25,421Verified emails

7,919Mobile numbers

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The 25 largest international staffing companies based in the United Kingdom

Ranked by team size

Top 25 of 7,951 international staffing companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 4, 2026. Evidence rates how directly each company's own description names international staffing companies: 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	REEDIndirect evidence	London, United KingdomHQ checked Sep 4, 2026	1,001-5,000	5,828
	“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 4, 2026
2	Blue ArrowPartial evidence	London, United KingdomHQ checked Sep 4, 2026	n/a	2,334
	“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 4, 2026
3	Staffline Recruitment LimitedIndirect evidence	Nottingham, United KingdomHQ checked Sep 4, 2026	501-1,000	1,863
	“At Staffline, we make recruitment simple, strategic and effective.” Source: company website · checked Sep 4, 2026
4	Harvey NashIndirect evidence	London, United KingdomHQ checked Sep 4, 2026	5,001-10,000	1,262
	“We’re Harvey Nash, and we build amazing technology and digital teams.” Source: company website · checked Sep 4, 2026
5	Office AngelsIndirect evidence	London, United KingdomHQ checked Sep 4, 2026	201-500	1,255
	“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 4, 2026
6	Brook StreetIndirect evidence	Uxbridge, United KingdomHQ checked Sep 4, 2026	501-1,000	1,211
	“For 75 years, the middle is where we've worked best.” Source: company website · checked Sep 4, 2026
7	Randstad UKIndirect evidence	Luton, United KingdomHQ checked Sep 4, 2026	1,001-5,000	954
	“Randstad is your partner for talent, finding, nurturing, and connecting specialized talent with businesses to cultivate rewarding careers and build high-performing teams.” Source: company website · checked Sep 4, 2026
8	OFF To WorkPartial evidence	London, United KingdomHQ checked Sep 4, 2026	n/a	909
	“Casual Staffing \| Permanent Recruitment \| Temp to Perm \| Training \| Consultancy Off to Work offers more than just recruitment.” Source: company website · checked Sep 4, 2026
9	Morson TalentIndirect evidence	Manchester, United KingdomHQ checked Sep 4, 2026	1,001-5,000	905
	“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 4, 2026
10	ARC Hospitality RecruitmentIndirect evidence	Liverpool, United KingdomHQ checked Sep 4, 2026	10001+	855
	“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 4, 2026
11	The Recruitment COIndirect evidence	Northampton, United KingdomHQ checked Sep 4, 2026	1,001-5,000	560
	“We’re THE RECRUITMENT Co.” Source: company website · checked Sep 4, 2026
12	GCSIndirect evidence	London, United KingdomHQ checked Sep 4, 2026	51-200	557
	“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 4, 2026
13	TopsourceIndirect evidence	London, United KingdomHQ checked Sep 4, 2026	201-500	543
	“We operate at the critical intersection of people, place and performance.” Source: company website · checked Sep 4, 2026
14	GAP PersonnelIndirect evidence	Chester, United KingdomHQ checked Sep 4, 2026	201-500	539
	“gap personnel is the industrial arm of gap personnel group, an award-winning recruitment company specialising industrial, professional, technical and driving sectors.” Source: company website · checked Sep 4, 2026
15	CER Education RecruitmentIndirect evidence	London, United KingdomHQ checked Sep 4, 2026	201-500	511
	“CER Education Recruitment specialises in providing a comprehensive range of recruitment solutions and added value services to the education sector.” Source: company website · checked Sep 4, 2026
16	Meridian Business SupportPartial evidence	Manchester, United KingdomHQ checked Sep 4, 2026	201-500	496
	“Meridian Business Support is a Best Companies Top 100 Company to work for, supplying temporary, contract and permanent staffing solutions across multiple sectors including Built…” Source: company website · checked Sep 4, 2026
17	M&e GlobalIndirect evidence	Belbroughton, United KingdomHQ checked Sep 4, 2026	1,001-5,000	483
	“M&E Global Holdings Ltd with trading subsidiaries M&E Global Ltd in the UK, M&E Global GmbH in Germany, M&E Global Sp.” Source: company website · checked Sep 4, 2026
18	Coyle PersonnelIndirect evidence	Harrow, United KingdomHQ checked Sep 4, 2026	201-500	454
	“Founded in 1988, Coyle Personnel is one of the UK's top privately-owned recruitment agencies.” Source: company website · checked Sep 4, 2026
19	SALTIndirect evidence	London, United KingdomHQ checked Sep 4, 2026	201-500	449
	“At Salt Solutions Group, we help organisations solve growth, transformation and workforce challenges through a unique combination of talent, consulting and delivery solutions.” Source: company website · checked Sep 4, 2026
20	Ersg LTDStrong evidence	Bromley, United KingdomHQ checked Sep 4, 2026	51-200	444
	“ERSG \| Sourcing talent for a sustainable tomorrow ERSG has 15 offices around the world & is an award-winning international leader in recruitment and staffing services to the…” Source: company website · checked Sep 4, 2026
21	Mach Recruitment LTDIndirect evidence	Leeds, United KingdomHQ checked Sep 4, 2026	10001+	442
	“Mach Recruitment provides on-site, temporary and permanent recruitment services to suit any organisation's infrastructure.” Source: company website · checked Sep 4, 2026
22	Venn GroupIndirect evidence	London Bridge, United KingdomHQ checked Sep 4, 2026	201-500	435
	“At Venn Group, we make recruitment personal - it’s more than just a job.” Source: company website · checked Sep 4, 2026
23	Interaction RecruitmentIndirect evidence	Huntingdon, United KingdomHQ checked Sep 4, 2026	201-500	408
	“Interaction is one of the UK's fastest growing independent recruitment businesses, recognised and published as "UK's #1 General Recruiter".” Source: company website · checked Sep 4, 2026
24	StafforceIndirect evidence	Sheffield, United KingdomHQ checked Sep 4, 2026	51-200	387
	“Stafforce is the recruiter of choice, connecting high quality talent across multiple sectors - from high volume workforce recruitment to commercial and professional roles.” Source: company website · checked Sep 4, 2026
25	Acorn By SynergieIndirect evidence	Newport, United KingdomHQ checked Sep 4, 2026	201-500	369
	“The Acorn by Synergie is one of the UK’s leading recruitment specialist with a network of 40 branches and specialist divisions across the South West, North West and South East…” Source: company website · checked Sep 4, 2026

Showing 25 of 7,951 international staffing companies based in the United Kingdom

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International staffing companies based in the United Kingdom at a glance

As of Sep 4, 2026

1-10Median size (employees)

LondonLargest hub · 2356 HQs

7,919Contacts with mobile numbers

Sep 4, 2026Data refreshed

Companies by employee count

1-10

5,042

11-50

2,081

51-200

515

201-500

127

501-1,000

1,001-5,000

5,001-10,000

10001+

Verified emails by last verification

0–30

31–60

2,103

61–90

13,700

90–180

9,442

180+

176

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 international staffing 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 “international staffing 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 international staffing 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, 25,421 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 4, 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.

International staffing companies by metro

Frequently asked

How many international staffing companies are there based in the United Kingdom?

RevenueBase identified 7,951 international staffing 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?

REED, headquartered in Swansea, tops this list with the largest team on record.

Which city has the most international staffing companies?

London leads with 2356 headquartered companies, followed by Manchester (306) and Birmingham (179).

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 25,421 verified decision-maker contacts tracked across these 7,951 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 4, 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.