Company lists · Data refreshed September 2026
Top 25 AI staffing firms based in the United Kingdom
RevenueBase identified 592 AI staffing firms headquartered in the United Kingdom as of September 2026 and tracks 5,864 professional contacts across them, including 1,500 with verified work emails. London is the largest hub.
This list covers AI staffing 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 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.
The 25 largest AI staffing firms based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 313 contacts → | ||||
Indirect evidence “With over 30 years of experience servicing blue-chip clients, Momenta Group is renowned for our expertise and quality-driven approach.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 2 | 244 contacts → | ||||
Indirect evidence “Tangent International Integrated Talent and Delivery across Technology and Communications.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 3 | 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, 2026Thanks. The Data Team will review it. | |||||
| 4 | 209 contacts → | ||||
Indirect evidence “Always Ahead.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 5 | 194 contacts → | ||||
Partial evidence “Linnk Group provides staffing, outsourcing and professional services to our clients.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 6 | 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, 2026Thanks. The Data Team will review it. | |||||
| 7 | 145 contacts → | ||||
Indirect evidence “Global Technology Recruitment Specialists.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 8 | 101 contacts → | ||||
Indirect evidence “It’s everything we stand for.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 9 | 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, 2026Thanks. The Data Team will review it. | |||||
| 10 | 84 contacts → | ||||
Indirect evidence “Envertiz Consultancy bridges global talent with leading employers across healthcare, IT, engineering, finance, and other key sectors.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 11 | 80 contacts → | ||||
Indirect evidence “For over 45 years we have been connecting our clients with the best technology, transformation and data talent.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 12 | 71 contacts → | ||||
Indirect evidence “BioTalent connects the global life sciences and technology community with the talent, leadership and workforce intelligence to push the boundaries of innovation in STEM and…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 13 | 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, 2026Thanks. The Data Team will review it. | |||||
| 14 | 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, 2026Thanks. The Data Team will review it. | |||||
| 15 | 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, 2026Thanks. The Data Team will review it. | |||||
| 16 | 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, 2026Thanks. The Data Team will review it. | |||||
| 17 | 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, 2026Thanks. The Data Team will review it. | |||||
| 18 | 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, 2026Thanks. The Data Team will review it. | |||||
| 19 | 49 contacts → | ||||
Indirect evidence “Powering Global STEM | Discover the Power of a Partner.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 20 | 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, 2026Thanks. The Data Team will review it. | |||||
| 21 | 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, 2026Thanks. The Data Team will review it. | |||||
| 22 | 39 contacts → | ||||
Indirect evidence “Whilst everything is changing so drastically, we have created a new-gen solution to bring clients and candidates together.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 23 | 38 contacts → | ||||
Partial evidence “We believe in a future where humans dream and AI executes.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 24 | 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, 2026Thanks. The Data Team will review it. | |||||
| 25 | 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, 2026Thanks. The Data Team will review it. | |||||
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 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 AI staffing firms.
- Partial evidence
- Its own public description names part of AI staffing firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name AI 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 592 AI staffing firms based in the United Kingdom
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AI staffing firms based in the United Kingdom at a glance
As of Sep 21, 2026Companies by employee count
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 592 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 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 “AI 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 AI 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 AI staffing 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, 1,500 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 firms by metro
- AI staffing firms in London299
- AI staffing firms in Manchester25
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 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 AI staffing firms are there based in the United Kingdom?
RevenueBase identified 592 AI staffing 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?
Momenta, headquartered in London, tops this list with the largest team on record.
Which city has the most AI staffing firms?
London leads with 299 headquartered companies, followed by Manchester (25) and Birmingham (13).
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 1,500 verified decision-maker contacts tracked across these 592 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.
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