Company lists · Data refreshed September 2026

Top 25 Advertising staffing firms based in London, United Kingdom

Name: Advertising staffing firms based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 27, 2026 1,707 companies tracked

RevenueBase identified 1,707 advertising staffing firms headquartered in London, United Kingdom as of September 2026 and tracks 62,289 professional contacts across them, including 9,287 with verified work emails. London is the largest hub.

This list covers advertising staffing firms 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 27, 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 27, 2026 86% judged on-target in blind review

1,707Companies

62,289Contacts tracked

9,287Verified emails

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The 25 largest advertising staffing firms based in London, United Kingdom

Ranked by team size

Top 25 of 1,707 advertising staffing firms based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to advertising staffing firms: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	HAYS	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	5,001-10,000	22,731 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 27, 2026
2	Robert Walters	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	1,001-5,000	4,423 contacts →
	Indirect evidence “Robert Walters is the world’s most trusted talent solutions business.” Source: RevenueBase Database · checked Sep 27, 2026
3	Blue Arrow	Partial evidence	London, United KingdomHQ checked Sep 27, 2026	n/a	2,341 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 27, 2026
4	Pagegroup	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	5,001-10,000	2,071 contacts →
	Indirect evidence “Michael Page, Page Personnel, Page Executive and Page Outsourcing are all part of PageGroup.” Source: RevenueBase Database · checked Sep 27, 2026
5	Avance Consulting	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	501-1,000	1,927 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 27, 2026
6	Office Angels	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	201-500	1,259 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 27, 2026
7	Harvey Nash	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	5,001-10,000	1,248 contacts →
	Indirect evidence “We’re Harvey Nash, and we build amazing technology and digital teams.” Source: RevenueBase Database · checked Sep 27, 2026
8	Protocol Education	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	201-500	1,235 contacts →
	Indirect evidence “Protocol Education is a specialist provider of recruitment services to the education sector.” Source: RevenueBase Database · checked Sep 27, 2026
9	GCS	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	51-200	568 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 27, 2026
10	LA Fosse	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	201-500	396 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 27, 2026
11	Gravitas Recruitment Group Global LTD	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	201-500	383 contacts →
	Indirect evidence “Gravitas are serious about impacting the recruitment industry - positively.” Source: RevenueBase Database · checked Sep 27, 2026
12	Elite Associates	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	51-200	375 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 27, 2026
13	PSD Group	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	51-200	335 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 27, 2026
14	Weareaspire	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	n/a	333 contacts →
	Indirect evidence “Search jobs or partner with us by visiting We are Aspire.” Source: RevenueBase Database · checked Sep 27, 2026
15	Artisan People Group	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	51-200	306 contacts →
	Indirect evidence “Artisan People Group is a market-leading recruitment agency which is passionate about delivering customer service excellence.” Source: RevenueBase Database · checked Sep 27, 2026
16	Pracyva	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	201-500	300 contacts →
	Indirect evidence “At Pracyva, we specialize in building future-ready teams for clients worldwide.” Source: RevenueBase Database · checked Sep 27, 2026
17	The7stars	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	201-500	295 contacts →
	Indirect evidence “the7stars is the UK’s largest independent media agency, offering the best people, the best service and the best creative media campaigns.” Source: RevenueBase Database · checked Sep 27, 2026
18	Berkeley Scott	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	51-200	265 contacts →
	Indirect evidence “Berkeley Scott \| Recruitment Experts in Hospitality With over 30 years of experience, Berkeley Scott is the UK’s leading specialist in recruitment for the Hotel, Hospitality and…” Source: RevenueBase Database · checked Sep 27, 2026
19	First Point Group	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	51-200	241 contacts →
	Indirect evidence “We are a leading, global recruitment company within Telecommunications, Technology, Data Centre and Energy.” Source: RevenueBase Database · checked Sep 27, 2026
20	Rethink	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	51-200	225 contacts →
	Indirect 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 27, 2026
21	Tate Recruitment	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	51-200	203 contacts →
	Indirect 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 27, 2026
22	Marketing Talent Publishing, Events & Tech Recruitment	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	n/a	191 contacts →
	Indirect evidence “We help marketing leaders in the Publishing, Events and Business Intelligence sector hire exceptional Marketing Talent Looking for a new role?” Source: RevenueBase Database · checked Sep 27, 2026
23	Tempest Resourcing LTD	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	51-200	164 contacts →
	Indirect evidence “Tempest Resourcing is a team of dedicated recruitment specialists with in-depth experience across the Education, Social Work, Complex Care, Charity, Revenues & Benefits, and…” Source: RevenueBase Database · checked Sep 27, 2026
24	Havas London	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	201-500	157 contacts →
	Indirect evidence “From pigeons to platforms, from news agency to integrated communications services, our story is one of constant reinvention.” Source: RevenueBase Database · checked Sep 27, 2026
25	Sphere Digital Recruitment Group	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	51-200	145 contacts →
	Indirect evidence “Sphere Digital Recruitment is a multi award-winning agency specialising in recruiting marketing, sales, analytics, product & creative talent on a permanent and contract basis in…” Source: RevenueBase Database · checked Sep 27, 2026

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: advertising staffing 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 advertising staffing firms.
Partial evidence: Its own public description names part of advertising staffing firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name advertising staffing 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 1,707 advertising staffing firms based in London, United Kingdom

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Advertising staffing firms based in London, United Kingdom at a glance

As of Sep 27, 2026

14.9%Verified-email coverage

36.5Average contacts per company

1-10Median size (employees)

100.0%Largest-city concentration · London

Sep 27, 2026Page data refreshed

Companies by employee count

1-10

1,158

11-50

389

51-200

108

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 1,707 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 advertising staffing 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 London, United Kingdom whose own description of what they do matches “advertising staffing 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 advertising staffing 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 advertising staffing firms, 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, 9,287 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 27, 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.

Advertising staffing firms 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 advertising staffing 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 advertising staffing firms are there based in London, United Kingdom?

RevenueBase identified 1,707 advertising staffing firms 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 advertising staffing firms?

London leads with 1707 headquartered companies, followed by Manchester (231) and Birmingham (114).

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 9,287 verified decision-maker contacts tracked across these 1,707 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 27, 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.