Company lists · Data refreshed September 2026

Top 25 Tech recruitment marketing firms based in the United Kingdom

RevenueBase identified 3,847 tech recruitment marketing firms headquartered in the United Kingdom as of September 2026 and tracks 42,964 professional contacts across them, including 12,023 with verified work emails. London is the largest hub.

This list covers tech recruitment marketing firms 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 29, 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 29, 2026 86% judged on-target in blind review
3,847Companies
42,964Contacts tracked
12,023Verified emails
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The 25 largest tech recruitment marketing firms based in the United Kingdom

Ranked by team size
Top 25 of 3,847 tech recruitment marketing firms based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to tech recruitment marketing 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceLondon, United KingdomHQ checked Sep 29, 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 29, 2026
2Partial evidenceNewcastle Upon Tyne, United KingdomHQ checked Sep 29, 20261,001-5,000682 contacts →

Partial evidence

“We’re the recognized global leaders in Microsoft recruitment; it’s all we do.”

Source: RevenueBase Database · checked Sep 29, 2026
3Strong evidenceLondon, United KingdomHQ checked Sep 29, 2026201-500627 contacts →

Strong evidence

“25 years of tech recruitment!”

Source: RevenueBase Database · checked Sep 29, 2026
4Indirect evidenceLondon, United KingdomHQ checked Sep 29, 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 29, 2026
5Indirect evidence100 Bishopsgate, United KingdomHQ checked Sep 29, 2026201-500536 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
6Partial evidenceLondon, United KingdomHQ checked Sep 29, 2026201-500396 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
7Partial evidenceLondon, United KingdomHQ checked Sep 29, 2026201-500383 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
8Partial evidenceLondon, United KingdomHQ checked Sep 29, 2026201-500369 contacts →

Partial evidence

“Vivid Resourcing, a leading international talent solutions partner, connects you with in-demand technical professionals you need to flourish in the Tech, Engineering, Life…”

Source: RevenueBase Database · checked Sep 29, 2026
9Indirect evidenceLondon, United KingdomHQ checked Sep 29, 2026n/a333 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
10Partial evidenceLondon, United KingdomHQ checked Sep 29, 202651-200265 contacts →

Partial evidence

“Smart Working is Tech Talent as a Service - building high-performance global engineering teams without the friction, risk, or overhead of legacy hiring models.”

Source: RevenueBase Database · checked Sep 29, 2026
11Partial evidenceManchester, United KingdomHQ checked Sep 29, 202651-200263 contacts →

Partial evidence

“Oscar is an award-winning, global recruitment consultancy that takes an ethical, sustainable and people-first approach.”

Source: RevenueBase Database · checked Sep 29, 2026
12Indirect evidenceLondon, United KingdomHQ checked Sep 29, 202651-200246 contacts →

Indirect evidence

“Recruiters that thrive on connecting great talent with great organisations.”

Source: RevenueBase Database · checked Sep 29, 2026
13Indirect evidenceBillericay, United KingdomHQ checked Sep 29, 2026201-500244 contacts →

Indirect evidence

“Tangent International Integrated Talent and Delivery across Technology and Communications.”

Source: RevenueBase Database · checked Sep 29, 2026
14Partial evidenceLondon, United KingdomHQ checked Sep 29, 202651-200241 contacts →

Partial evidence

“We are a leading, global recruitment company within Telecommunications, Technology, Data Centre and Energy.”

Source: RevenueBase Database · checked Sep 29, 2026
15Partial evidenceLondon, United KingdomHQ checked Sep 29, 202651-200225 contacts →

Partial 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 29, 2026
16Partial evidenceBirmingham, United KingdomHQ checked Sep 29, 202651-200215 contacts →

Partial evidence

“Crimson’s IT recruitment services simplify the recruitment process, helping hiring managers find the best contract and permanent IT talent in established and emerging disciplines.”

Source: RevenueBase Database · checked Sep 29, 2026
17Partial evidenceReading, United KingdomHQ checked Sep 29, 202651-200211 contacts →

Partial evidence

“In the search for highly skilled talent, IC Resources has supported the technology community since We match great talent to deep-tech companies around the world.”

Source: RevenueBase Database · checked Sep 29, 2026
18Indirect evidenceLondon, United KingdomHQ checked Sep 29, 2026501-1,000203 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 29, 2026
19Indirect evidenceBrechin, United KingdomHQ checked Sep 29, 2026201-500200 contacts →

Indirect evidence

“Join Talent is a ‘talent acquisition as a service’ (TAaaS) business - dedicated to driving business scale up growth performance.”

Source: RevenueBase Database · checked Sep 29, 2026
20Strong evidenceLondon, United KingdomHQ checked Sep 29, 202651-200199 contacts →

Strong evidence

“Optimus Search has been a trusted partner in DACH tech recruitment since 2005, driven by the belief that technology achieves its full potential in the right hands.”

Source: RevenueBase Database · checked Sep 29, 2026
21Partial evidenceLondon, United KingdomHQ checked Sep 29, 2026201-500196 contacts →

Partial evidence

“Totaljobs is part of StepStone, one of the world’s leading next-generation recruitment solution providers.”

Source: RevenueBase Database · checked Sep 29, 2026
22Partial evidenceLondon, United KingdomHQ checked Sep 29, 2026n/a191 contacts →

Partial 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 29, 2026
23Partial evidenceLondon, United KingdomHQ checked Sep 29, 2026n/a188 contacts →

Partial evidence

“TechTree is an AI-powered recruitment platform that combines a proprietary talent data platform, predictive AI, and a network of human recruiters to deliver the right candidates…”

Source: RevenueBase Database · checked Sep 29, 2026
24Partial evidenceSwindon, United KingdomHQ checked Sep 29, 202651-200173 contacts →

Partial evidence

“Outsource UK is one of the country’s largest and most successful independent specialist recruitment agencies, established over 30 years ago.”

Source: RevenueBase Database · checked Sep 29, 2026
25Indirect evidenceLondon, United KingdomHQ checked Sep 29, 202651-200171 contacts →

Indirect evidence

“RP International is now part of Auxo Talent under the specialism of Auxo Technology.”

Source: RevenueBase Database · checked Sep 29, 2026

Showing 25 of 3,847 tech recruitment marketing firms based in the United Kingdom

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Tech recruitment marketing firms based in the United Kingdom at a glance

As of Sep 29, 2026
28.0%Verified-email coverage
11.2Average contacts per company
1-10Median size (employees)
49.1%Largest-city concentration · London
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
2,728
11-50
902
51-200
170
201-500
30
501-1,000
6
1,001-5,000
6
5,001-10,000
2
10001+
1

Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 3,847 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 tech recruitment marketing 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 the United Kingdom whose own description of what they do matches “tech recruitment marketing 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 tech recruitment marketing 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 tech recruitment marketing firms, 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, 12,023 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 29, 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 tech recruitment marketing 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 tech recruitment marketing firms are there based in the United Kingdom?

RevenueBase identified 3,847 tech recruitment marketing firms 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?

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

Which city has the most tech recruitment marketing firms?

London leads with 1887 headquartered companies, followed by Manchester (169) and Birmingham (78).

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 12,023 verified decision-maker contacts tracked across these 3,847 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 29, 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.