Company lists · Data refreshed September 2026

Top 25 AI staffing services based in London, United Kingdom

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

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 685 companies tracked

RevenueBase identified 685 AI staffing services headquartered in London, United Kingdom as of September 2026 and tracks 9,520 professional contacts across them, including 2,311 with verified work emails. London is the largest hub.

This list covers AI staffing services 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 21, 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 21, 2026 86% judged on-target in blind review

685Companies

9,520Contacts tracked

2,311Verified emails

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The 25 largest AI staffing services based in London, United Kingdom

Ranked by team size

Top 25 of 685 AI staffing services based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to AI staffing services: 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	Harvey Nash	Indirect evidence	London, United KingdomHQ checked Sep 21, 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 21, 2026
2	GCS	Indirect evidence	London, United KingdomHQ checked Sep 21, 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 21, 2026
3	LA Fosse	Indirect evidence	London, United KingdomHQ checked Sep 21, 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 21, 2026
4	Totaljobs	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	201-500	196 contacts →
	Indirect evidence “Totaljobs is part of StepStone, one of the world’s leading next-generation recruitment solution providers.” Source: RevenueBase Database · checked Sep 21, 2026
5	Linnk Group	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	194 contacts →
	Partial evidence “Linnk Group provides staffing, outsourcing and professional services to our clients.” Source: RevenueBase Database · checked Sep 21, 2026
6	Techtree	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	n/a	188 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 21, 2026
7	Lawrence Harvey	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	n/a	156 contacts →
	Indirect evidence “Lawrence Harvey, established in 2002, is an international talent solutions business specialising in Technology recruitment.” Source: RevenueBase Database · checked Sep 21, 2026
8	XCEDE	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	145 contacts →
	Indirect evidence “Global Technology Recruitment Specialists.” Source: RevenueBase Database · checked Sep 21, 2026
9	Explore Group	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	11-50	143 contacts →
	Indirect evidence “The Explore Group has been helping companies recruit top talent in the ever-evolving world of technology since 2005.” Source: RevenueBase Database · checked Sep 21, 2026
10	Ixceed Solutions	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	201-500	137 contacts →
	Indirect evidence “iXceed Solutions is a global, end-to-end Talent Solutions, RPO, EOR, Enterprise Services, and Digital Transformation partner trusted by Fortune 100 and high-growth organizations…” Source: RevenueBase Database · checked Sep 21, 2026
11	Skillrecruit	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	201-500	125 contacts →
	Indirect evidence “Skilliantech Ltd, trading as “SkillRecruit”, is a specialist IT and Engineering recruitment agency delivering comprehensive coverage of recruitment services across all industries…” Source: RevenueBase Database · checked Sep 21, 2026
12	Hackajob	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	115 contacts →
	Partial evidence “hackajob has the AI hiring tools trusted by enterprises, scale-ups, and 1M+ tech professionals worldwide.” Source: RevenueBase Database · checked Sep 21, 2026
13	Square ONE Resources	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	108 contacts →
	Indirect evidence “With over 25 years in the technology recruitment sector, Square One is an award-winning specialist recruitment agency.” Source: RevenueBase Database · checked Sep 21, 2026
14	OLEEO	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	97 contacts →
	Indirect evidence “We all know the feeling, you have 50+ roles to fill, and your day is swallowed by manual screening and scheduling.” Source: RevenueBase Database · checked Sep 21, 2026
15	Forsyth Barnes	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	91 contacts →
	Indirect evidence “Forsyth Barnes is a global talent partner disrupting the recruitment industry.” Source: RevenueBase Database · checked Sep 21, 2026
16	Acolyte Group	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	91 contacts →
	Indirect evidence “Acolyte’s mission is simple: To offer employers the insight and recruitment solutions they need for direct, scalable and cost-effective access to the high-quality talent required…” Source: RevenueBase Database · checked Sep 21, 2026
17	Montash	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	86 contacts →
	Indirect evidence “Specialist technology recruitment.” Source: RevenueBase Database · checked Sep 21, 2026
18	Strike IT Recruitment Services	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	11-50	81 contacts →
	Indirect evidence “At Strike IT, we are your strategic partner in digital and technology recruitment, committed to connecting forward-thinking businesses with the talent they need to fuel innovation.” Source: RevenueBase Database · checked Sep 21, 2026
19	DWEET	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	11-50	76 contacts →
	Partial evidence “AI-powered hiring solutions for retail, fashion, beauty, and luxury Nova – Your AI recruitment co-pilot.” Source: RevenueBase Database · checked Sep 21, 2026
20	Twentyai	Strong evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	68 contacts →
	Strong evidence “TwentyAI is a talent and staffing solutions firm that combines cutting-edge AI technology, deep data insights, and human expertise to connect top talent with outstanding…” Source: RevenueBase Database · checked Sep 21, 2026
21	SCEDE	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	64 contacts →
	Indirect evidence “Scede is a trusted scaling partner for tech companies globally, offering a breadth of talent acquisition, people operations and training services, designed to solve key growth…” Source: RevenueBase Database · checked Sep 21, 2026
22	Signify Technology	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	11-50	61 contacts →
	Partial evidence “We aim to build exceptional teams in the tech space, focusing on two core engineering specialisms: Advanced Software Engineering and AI, ML, & Data Engineering.” Source: RevenueBase Database · checked Sep 21, 2026
23	Third Republic	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	60 contacts →
	Partial evidence “Salesforce and AI Workforce Solutions For The Companies Of Tomorrow Registered Salesforce Partner Approved Staff Augmentation Vendor to Salesforce and Amazon Bringing together AI…” Source: RevenueBase Database · checked Sep 21, 2026
24	3cix LTD	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	201-500	59 contacts →
	Indirect evidence “Your Partner for Innovative Solutions & Services.” Source: RevenueBase Database · checked Sep 21, 2026
25	Trinnovo Group B Corp	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	59 contacts →
	Partial evidence “Global Provider of Specialist Staffing & Consultancy Solutions Fully licensed across UK \| Ireland \| Switzerland (SECO)\| Germany (AUG)\| North America Certified B Corp – part of a…” Source: RevenueBase Database · checked Sep 21, 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: AI staffing services. 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 AI staffing services.
Partial evidence: Its own public description names part of AI staffing services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name AI staffing services. 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 685 AI staffing services based in London, United Kingdom

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AI staffing services based in London, United Kingdom at a glance

As of Sep 21, 2026

24.3%Verified-email coverage

13.9Average contacts per company

1-10Median size (employees)

100.0%Largest-city concentration · London

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

445

11-50

178

51-200

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 685 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 AI staffing services, 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 “AI staffing services”. 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 AI staffing services), 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 AI staffing services, 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, 2,311 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 21, 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.

AI staffing services 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 AI staffing services, 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 AI staffing services are there based in London, United Kingdom?

RevenueBase identified 685 AI staffing services 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?

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

Which city has the most AI staffing services?

London leads with 685 headquartered companies, followed by Manchester (64) and Bristol (32).

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 2,311 verified decision-maker contacts tracked across these 685 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 21, 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.