Company lists · Data refreshed September 2026

Top 25 AI staffing companies based in the United Kingdom

Name: AI staffing companies based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 492 companies tracked

RevenueBase identified 492 AI staffing companies headquartered in the United Kingdom as of September 2026 and tracks 3,832 professional contacts across them, including 1,080 with verified work emails. London is the largest hub.

This list covers AI 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 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

492Companies

3,832Contacts tracked

1,080Verified emails

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The 25 largest AI staffing companies based in the United Kingdom

Ranked by team size

Top 25 of 492 AI staffing companies based in the 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 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Harnham	Strong evidence	Wimbledon, United KingdomHQ checked Sep 21, 2026	201-500	239 contacts →
	Strong evidence “Harnham provides specialist Data and AI recruitment and staffing services, along with bespoke training solutions, across multiple industry verticals, operating in the UK, the USA…” Source: RevenueBase Database · checked Sep 21, 2026
2	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
3	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
4	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
5	Venturi	Indirect evidence	Manchester, United KingdomHQ checked Sep 21, 2026	51-200	101 contacts →
	Indirect evidence “It’s everything we stand for.” Source: RevenueBase Database · checked Sep 21, 2026
6	Onlygeniuses	Indirect evidence	Pinner, United KingdomHQ checked Sep 21, 2026	51-200	82 contacts →
	Indirect evidence “OnlyGeniuses, Is a 12 year old UK based IT company which works only with the top 1% of IT Talent to add immense value to our clients.” Source: RevenueBase Database · checked Sep 21, 2026
7	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
8	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
9	BIG Cloud	Partial evidence	Manchester, United KingdomHQ checked Sep 21, 2026	n/a	63 contacts →
	Partial evidence “Helping innovative start-ups and fast-growing Tech companies rapidly scale their AI and Machine Learning teams.” Source: RevenueBase Database · checked Sep 21, 2026
10	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
11	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
12	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
13	Owen Daniels	Indirect evidence	Frimley, United KingdomHQ checked Sep 21, 2026	51-200	49 contacts →
	Indirect evidence “Powering Global STEM \| Discover the Power of a Partner.” Source: RevenueBase Database · checked Sep 21, 2026
14	ERG Group	Indirect evidence	Birmingham, United KingdomHQ checked Sep 21, 2026	11-50	47 contacts →
	Indirect evidence “At erg Group we have a simple mission: to provide market-leading talent solutions to the technology industry.” Source: RevenueBase Database · checked Sep 21, 2026
15	X4 Group	Indirect evidence	Temple, United KingdomHQ checked Sep 21, 2026	201-500	45 contacts →
	Indirect evidence “X4 Group support the talent needs of the organisations we serve as well as the career aspirations of the best STEM professionals across the world, providing a full spectrum of…” Source: RevenueBase Database · checked Sep 21, 2026
16	Maxwell Bond	Strong evidence	Manchester, United KingdomHQ checked Sep 21, 2026	11-50	37 contacts →
	Strong evidence “As a leading recruitment agency, we specialise in providing staffing solutions across various industries, including Technology, AI & Robotics, Sales & GTM, Digital, and Change &…” Source: RevenueBase Database · checked Sep 21, 2026
17	Intellect Group	Indirect evidence	Manchester, United KingdomHQ checked Sep 21, 2026	11-50	34 contacts →
	Indirect evidence “Intelligence in Every Thought, Intellect in Every Hire." Welcome to Intellect Group, where we redefine recruitment excellence with a focus on Data, Technology, and Sustainability.” Source: RevenueBase Database · checked Sep 21, 2026
18	Parallel Consulting	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	33 contacts →
	Indirect evidence “We are Parallel!” Source: RevenueBase Database · checked Sep 21, 2026
19	Eagle EYE Staffing Solutions	Indirect evidence	Londyn, United KingdomHQ checked Sep 21, 2026	51-200	31 contacts →
	Indirect evidence “Technology companies rarely struggle because of a lack of ideas.” Source: RevenueBase Database · checked Sep 21, 2026
20	MBN Solutions	Partial evidence	Glasgow, United KingdomHQ checked Sep 21, 2026	11-50	31 contacts →
	Partial evidence “MBN Solutions helps organisations build high-performing Data & AI capability - from senior leadership through to specialist teams.” Source: RevenueBase Database · checked Sep 21, 2026
21	SEER	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	11-50	29 contacts →
	Partial evidence “At Seer, we offer bespoke talent solutions, specialising in placing professionals in emerging tech industries such as AI, Blockchain, Machine Learning, AI Research, Crypto, and…” Source: RevenueBase Database · checked Sep 21, 2026
22	Certus Recruitment Group	Indirect evidence	Haverhill, United KingdomHQ checked Sep 21, 2026	51-200	28 contacts →
	Indirect evidence “Certus Recruitment Group are the Global Specialist Recruiter to the Technology Sector.” Source: RevenueBase Database · checked Sep 21, 2026
23	Priority Recruitment	Indirect evidence	Manchester, United KingdomHQ checked Sep 21, 2026	11-50	26 contacts →
	Indirect evidence “Priority Recruitment was established in 2012 with a unique goal in mind: to provide a personable, human recruitment experience to clients and candidates.” Source: RevenueBase Database · checked Sep 21, 2026
24	TACT	Indirect evidence	Manchester, United KingdomHQ checked Sep 21, 2026	11-50	25 contacts →
	Indirect evidence “We help companies build teams with people you won’t find on the market.” Source: RevenueBase Database · checked Sep 21, 2026
25	Beyondstaff	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	11-50	24 contacts →
	Indirect evidence “Beyond Staff is a globally dispersed team supporting businesses through the most cost-efficient and flexible hiring solution.” 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 companies. 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 companies.
Partial evidence: Its own public description names part of AI staffing companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name AI staffing companies. 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 492 AI staffing companies based in the United Kingdom

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AI staffing companies based in the United Kingdom at a glance

As of Sep 21, 2026

28.2%Verified-email coverage

7.8Average contacts per company

1-10Median size (employees)

52.2%Largest-city concentration · London

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

333

11-50

112

51-200

201-500

501-1,000

5,001-10,000

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 492 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 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 “AI 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 AI 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 AI 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, 1,080 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 companies by metro

AI staffing companies in London257

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 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 AI staffing companies are there based in the United Kingdom?

RevenueBase identified 492 AI 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?

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

Which city has the most AI staffing companies?

London leads with 257 headquartered companies, followed by Manchester (22) and Birmingham (11).

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 1,080 verified decision-maker contacts tracked across these 492 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.