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Company lists · Data refreshed September 2026

Top 25 Professional staffing agencies based in London, United Kingdom

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 3,153 companies tracked

RevenueBase identified 3,153 professional staffing agencies headquartered in London, United Kingdom as of September 2026 and tracks 87,846 professional contacts across them, including 16,841 with verified work emails. London is the largest hub.

This list covers professional staffing agencies headquartered in London, 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 5, 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 5, 2026 86% judged on-target in blind review
3,153Companies
87,846Contacts tracked
16,841Verified emails
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The 25 largest professional staffing agencies based in London, United Kingdom

Ranked by team size
Top 25 of 3,153 professional staffing agencies based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 5, 2026. RevenueBase Smart Search rates how each company's information relates to professional staffing agencies: 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
1
HAYS
Indirect evidenceLondon, United KingdomHQ checked Sep 5, 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 5, 2026
2
Robert Walters
Indirect evidenceLondon, United KingdomHQ checked Sep 5, 20261,001-5,0004,423 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 5, 2026
3
Blue Arrow
Partial evidenceLondon, United KingdomHQ checked Sep 5, 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 5, 2026
4
Pagegroup
Indirect evidenceLondon, United KingdomHQ checked Sep 5, 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 5, 2026
5
Antal International
Indirect evidenceLondon, United KingdomHQ checked Sep 5, 20261,001-5,0001,979 contacts →

Indirect evidence

“Antal International is a global executive search organisation with over 130 offices in more than 30 countries.”

Source: RevenueBase Database · checked Sep 5, 2026
6
Avance Consulting
Indirect evidenceLondon, United KingdomHQ checked Sep 5, 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 5, 2026
7
Office Angels
Indirect evidenceLondon, United KingdomHQ checked Sep 5, 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 5, 2026
8
Harvey Nash
Indirect evidenceLondon, United KingdomHQ checked Sep 5, 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 5, 2026
9
Protocol Education
Indirect evidenceLondon, United KingdomHQ checked Sep 5, 2026201-5001,235 contacts →

Indirect evidence

“Protocol Education is a specialist provider of recruitment services to the education sector.”

Source: RevenueBase Database · checked Sep 5, 2026
10
OFF To Work
Partial evidenceLondon, United KingdomHQ checked Sep 5, 2026n/a912 contacts →

Partial evidence

“Casual Staffing | Permanent Recruitment | Temp to Perm | Training | Consultancy Off to Work offers more than just recruitment.”

Source: RevenueBase Database · checked Sep 5, 2026
11
GCS
Indirect evidenceLondon, United KingdomHQ checked Sep 5, 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 5, 2026
12
Euro London
Indirect evidenceLondon, United KingdomHQ checked Sep 5, 202651-200537 contacts →

Indirect evidence

“Multilingual recruitment specialists in Europe since 1990.”

Source: RevenueBase Database · checked Sep 5, 2026
13
CER Education Recruitment
Indirect evidenceLondon, United KingdomHQ checked Sep 5, 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 5, 2026
14
LVI Associates
Indirect evidenceLondon, United KingdomHQ checked Sep 5, 20261,001-5,000494 contacts →

Indirect evidence

“Infrastructure plays a critical role in creating a future that works for everyone.”

Source: RevenueBase Database · checked Sep 5, 2026
15
Page Executive
Indirect evidenceLondon, United KingdomHQ checked Sep 5, 20265,001-10,000450 contacts →

Indirect evidence

“Page Executive is a global leader in executive search & recruitment.”

Source: RevenueBase Database · checked Sep 5, 2026
16
Morgan Hunt
Partial evidenceLondon, United KingdomHQ checked Sep 5, 202651-200424 contacts →

Partial evidence

“Morgan Hunt is a nationwide recruitment business with a quality-assured reputation for staffing solutions that result in placing talented people into UK public, private and Not…”

Source: RevenueBase Database · checked Sep 5, 2026
17
LA Fosse
Indirect evidenceLondon, United KingdomHQ checked Sep 5, 2026201-500396 contacts →

Indirect evidence

“La Fosse: Empowering people and businesses to thrive in a tech-driven world We are La Fosse.”

Source: RevenueBase Database · checked Sep 5, 2026
18
Page Outsourcing
Indirect evidenceLondon, United KingdomHQ checked Sep 5, 20265,001-10,000390 contacts →

Indirect evidence

“Page Outsourcing was created to meet the business transformation needs of our clients.”

Source: RevenueBase Database · checked Sep 5, 2026
19
Gravitas Recruitment Group Global LTD
Indirect evidenceLondon, United KingdomHQ checked Sep 5, 2026201-500383 contacts →

Indirect evidence

“Gravitas are serious about impacting the recruitment industry - positively.”

Source: RevenueBase Database · checked Sep 5, 2026
20
Hirexa Solutions
Indirect evidenceLondon, United KingdomHQ checked Sep 5, 2026201-500377 contacts →

Indirect evidence

“Hirexa Solutions is a leading group of companies committed to delivering exceptional services to Fortune 500 clients worldwide.”

Source: RevenueBase Database · checked Sep 5, 2026
21
Elite Associates
Indirect evidenceLondon, United KingdomHQ checked Sep 5, 202651-200375 contacts →

Indirect evidence

“Elite Associates are specialist luxury retail recruitment consultancy, supporting retail, fashion, beauty, corporate functions, creative services and production.”

Source: RevenueBase Database · checked Sep 5, 2026
22
Macdonald & Company
Partial evidenceLondon, United KingdomHQ checked Sep 5, 202651-200372 contacts →

Partial evidence

“Macdonald & Company is the leading professional recruitment consultancy for the real estate and built environment sectors.”

Source: RevenueBase Database · checked Sep 5, 2026
23
Globe Locums
Indirect evidenceLondon, United KingdomHQ checked Sep 5, 202651-200354 contacts →

Indirect evidence

“Globe Locums, is a Framework-approved, clinician-formed healthcare recruitment business.”

Source: RevenueBase Database · checked Sep 5, 2026
24
PSD Group
Indirect evidenceLondon, United KingdomHQ checked Sep 5, 202651-200335 contacts →

Indirect evidence

“PSD is a leading international executive recruitment consultancy, specialising in executive, management and board level recruitment with over 35 years of experience.”

Source: RevenueBase Database · checked Sep 5, 2026
25
Weareaspire
Indirect evidenceLondon, United KingdomHQ checked Sep 5, 2026n/a333 contacts →

Indirect evidence

“Search jobs or partner with us by visiting We are Aspire.”

Source: RevenueBase Database · checked Sep 5, 2026

Showing 25 of 3,153 professional staffing agencies based in London, United Kingdom

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 16,841 reachable decision-makers.

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Professional staffing agencies based in London, United Kingdom at a glance

As of Sep 5, 2026
19.2%Verified-email coverage
27.9Average contacts per company
1-10Median size (employees)
100.0%Largest-city concentration · London
Sep 5, 2026Page data refreshed

Companies by employee count

1-10
1,943
11-50
828
51-200
254
201-500
68
501-1,000
23
1,001-5,000
17
5,001-10,000
10
10001+
4

Email recency for this list is measured across the whole United Kingdom list rather than for London, so it is reported there. Company counts and contact totals on this page are exact for London, over 3,153 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 professional staffing agencies, 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 London, 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.
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 professional staffing agencies), 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 professional staffing agencies, and records with no verified work email. Companies headquartered outside London 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, 16,841 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 in the United Kingdom

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 professional staffing agencies, 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 professional staffing agencies are there based in London, United Kingdom?

RevenueBase identified 3,153 professional staffing agencies headquartered in London, 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 16,841 verified decision-maker contacts tracked across these 3,153 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 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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