Company lists · Data refreshed September 2026

Top 25 Acquired staffing companies based in the United Kingdom

RevenueBase identified 4,571 acquired staffing companies headquartered in the United Kingdom as of September 2026 and tracks 120,850 professional contacts across them, including 22,812 with verified work emails and 6,519 with mobile numbers. London is the largest hub.

This list covers acquired 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 28, 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 28, 2026 86% judged on-target in blind review
4,571Companies
120,850Contacts tracked
22,812Verified emails
6,519Mobile numbers
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest acquired staffing companies based in the United Kingdom

Ranked by team size
Top 25 of 4,571 acquired staffing companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to acquired staffing companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceLondon, United KingdomHQ checked Sep 28, 20265,001-10,00022,731 contacts →

Indirect evidence

“At Hays, we believe that the right job can transform a person's life - and the right person can transform a business.”

Source: RevenueBase Database · checked Sep 28, 2026
2Indirect evidenceLondon, United KingdomHQ checked Sep 28, 20261,001-5,0005,837 contacts →

Indirect evidence

“Reed is the largest family-run recruitment business in the world and we’ve been improving lives through work since 1960.”

Source: RevenueBase Database · checked Sep 28, 2026
3Indirect evidenceLondon, United KingdomHQ checked Sep 28, 20261,001-5,0004,423 contacts →

Indirect evidence

“Robert Walters is the world’s most trusted talent solutions business.”

Source: RevenueBase Database · checked Sep 28, 2026
4Partial evidenceLondon, United KingdomHQ checked Sep 28, 2026n/a2,341 contacts →

Partial evidence

“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: RevenueBase Database · checked Sep 28, 2026
5Indirect evidenceLondon, United KingdomHQ checked Sep 28, 20265,001-10,0002,071 contacts →

Indirect evidence

“Michael Page, Page Personnel, Page Executive and Page Outsourcing are all part of PageGroup.”

Source: RevenueBase Database · checked Sep 28, 2026
6Indirect evidenceLondon, United KingdomHQ checked Sep 28, 2026501-1,0001,927 contacts →

Indirect evidence

“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: RevenueBase Database · checked Sep 28, 2026
7Indirect evidenceNottingham, United KingdomHQ checked Sep 28, 2026501-1,0001,865 contacts →

Indirect evidence

“At Staffline, we make recruitment simple, strategic and effective.”

Source: RevenueBase Database · checked Sep 28, 2026
8Indirect evidenceBromsgrove, United KingdomHQ checked Sep 28, 2026501-1,0001,593 contacts →

Indirect evidence

“Welcome to The Best Connection.”

Source: RevenueBase Database · checked Sep 28, 2026
9Indirect evidenceGlasgow, United KingdomHQ checked Sep 28, 2026501-1,0001,429 contacts →

Indirect evidence

“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: RevenueBase Database · checked Sep 28, 2026
10Indirect evidenceLondon, United KingdomHQ checked Sep 28, 2026201-5001,259 contacts →

Indirect evidence

“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: RevenueBase Database · checked Sep 28, 2026
11Indirect evidenceLondon, United KingdomHQ checked Sep 28, 20265,001-10,0001,248 contacts →

Indirect evidence

“We’re Harvey Nash, and we build amazing technology and digital teams.”

Source: RevenueBase Database · checked Sep 28, 2026
12Indirect evidenceUxbridge, United KingdomHQ checked Sep 28, 2026501-1,0001,214 contacts →

Indirect evidence

“For 75 years, the middle is where we've worked best.”

Source: RevenueBase Database · checked Sep 28, 2026
13Indirect evidenceLuton, United KingdomHQ checked Sep 28, 20261,001-5,000956 contacts →

Indirect evidence

“Randstad is your partner for talent.”

Source: RevenueBase Database · checked Sep 28, 2026
14Indirect evidenceMilton Keynes, United KingdomHQ checked Sep 28, 2026201-500921 contacts →

Indirect evidence

“ID Medical is dedicated to connecting and supporting the Healthcare Professionals (HCPs) and Organisations who take care of our health every day.”

Source: RevenueBase Database · checked Sep 28, 2026
15Indirect evidenceManchester, United KingdomHQ checked Sep 28, 20261,001-5,000909 contacts →

Indirect evidence

“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: RevenueBase Database · checked Sep 28, 2026
16Indirect evidenceManchester, United KingdomHQ checked Sep 28, 2026501-1,000870 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 28, 2026
17Indirect evidenceLiverpool, United KingdomHQ checked Sep 28, 202610001+865 contacts →

Indirect evidence

“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: RevenueBase Database · checked Sep 28, 2026
18Indirect evidenceLondon, United KingdomHQ checked Sep 28, 2026501-1,000746 contacts →

Indirect evidence

“Guidant Global delivers dynamic, tailored workforce solutions that empower businesses to thrive in ever-evolving markets.”

Source: RevenueBase Database · checked Sep 28, 2026
19Indirect evidenceLondon, United KingdomHQ checked Sep 28, 202651-200568 contacts →

Indirect evidence

“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: RevenueBase Database · checked Sep 28, 2026
20Indirect evidenceNorthampton, United KingdomHQ checked Sep 28, 20261,001-5,000558 contacts →

Indirect evidence

“We’re THE RECRUITMENT Co.”

Source: RevenueBase Database · checked Sep 28, 2026
21Indirect evidence100 Bishopsgate, United KingdomHQ checked Sep 28, 2026201-500536 contacts →

Indirect evidence

“Lorien is a technology, transformation and telecom talent solutions specialist.”

Source: RevenueBase Database · checked Sep 28, 2026
22Indirect evidenceChester, United KingdomHQ checked Sep 28, 2026201-500535 contacts →

Indirect evidence

“gap personnel is the industrial arm of gap personnel group, an award-winning recruitment company specialising industrial, professional, technical and driving sectors.”

Source: RevenueBase Database · checked Sep 28, 2026
23Indirect evidenceLondon, United KingdomHQ checked Sep 28, 2026201-500514 contacts →

Indirect evidence

“CER Education Recruitment specialises in providing a comprehensive range of recruitment solutions and added value services to the education sector.”

Source: RevenueBase Database · checked Sep 28, 2026
24Partial evidenceManchester, United KingdomHQ checked Sep 28, 2026201-500497 contacts →

Partial evidence

“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: RevenueBase Database · checked Sep 28, 2026
25Indirect evidenceUxbridge, United KingdomHQ checked Sep 28, 2026501-1,000490 contacts →

Indirect evidence

“Manpower is part of ManpowerGroup, a Fortune 500 Global Business.”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 25 of 4,571 acquired staffing companies based in the United Kingdom

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 22,812 reachable decision-makers.

Free signup · no credit card

View the full list →

Acquired staffing companies based in the United Kingdom at a glance

As of Sep 28, 2026
18.9%Verified-email coverage
5.4%Mobile-number coverage
26.4Average contacts per company
1-10Median size (employees)
23.7%Largest-city concentration · London
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
2,707
11-50
1,238
51-200
387
201-500
120
501-1,000
50
1,001-5,000
32
5,001-10,000
10
10001+
6

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 30.0d

Company record updated

Median 94.0d

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 acquired staffing companies, 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 “acquired staffing companies”. 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 acquired staffing companies), 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 acquired 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 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, 22,812 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 28, 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.

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 acquired staffing companies, 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 acquired staffing companies are there based in the United Kingdom?

RevenueBase identified 4,571 acquired 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?

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

Which city has the most acquired staffing companies?

London leads with 1085 headquartered companies, followed by Manchester (167) and Birmingham (97).

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 22,812 verified decision-maker contacts tracked across these 4,571 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 28, 2026.

Ready to reach these companies? Verified emails and direct dials for all 4,571 acquired staffing companies based in the United Kingdom. Start with a free account, no credit card.

Download this list →

Related 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 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.