Company lists · Data refreshed September 2026

Top 24 AI staffing firms based in London, United Kingdom

Name: AI 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 24, 2026 299 companies tracked

RevenueBase identified 299 AI staffing firms headquartered in London, United Kingdom as of September 2026 and tracks 3,346 professional contacts across them, including 893 with verified work emails and 243 with mobile numbers. Across the United Kingdom, London is the largest hub for this category.

This list covers AI 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 24, 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 24, 2026 86% judged on-target in blind review

299Companies

3,346Contacts tracked

893Verified emails

243Mobile numbers

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The 24 largest AI staffing firms based in London, United Kingdom

Ranked by team size

Top 24 of 299 AI staffing firms based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 24, 2026. RevenueBase Smart Search rates how each company's information relates to AI 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	Momenta	Indirect evidence	London, United KingdomHQ checked Sep 24, 2026	51-200	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 24, 2026
2	Linnk Group	Partial evidence	London, United KingdomHQ checked Sep 24, 2026	51-200	194 contacts →
	Partial evidence “Linnk Group provides staffing, outsourcing and professional services to our clients.” Source: RevenueBase Database · checked Sep 24, 2026
3	Techtree	Partial evidence	London, United KingdomHQ checked Sep 24, 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 24, 2026
4	XCEDE	Indirect evidence	London, United KingdomHQ checked Sep 24, 2026	51-200	145 contacts →
	Indirect evidence “Global Technology Recruitment Specialists.” Source: RevenueBase Database · checked Sep 24, 2026
5	Acolyte Group	Indirect evidence	London, United KingdomHQ checked Sep 24, 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 24, 2026
6	Biotalent	Indirect evidence	London, United KingdomHQ checked Sep 24, 2026	51-200	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 24, 2026
7	Twentyai	Strong evidence	London, United KingdomHQ checked Sep 24, 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 24, 2026
8	SCEDE	Indirect evidence	London, United KingdomHQ checked Sep 24, 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 24, 2026
9	Signify Technology	Partial evidence	London, United KingdomHQ checked Sep 24, 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 24, 2026
10	Third Republic	Partial evidence	London, United KingdomHQ checked Sep 24, 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 24, 2026
11	Trinnovo Group B Corp	Partial evidence	London, United KingdomHQ checked Sep 24, 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 24, 2026
12	Moonshot Partners	Partial evidence	London, United KingdomHQ checked Sep 24, 2026	51-200	38 contacts →
	Partial evidence “We believe in a future where humans dream and AI executes.” Source: RevenueBase Database · checked Sep 24, 2026
13	Parallel Consulting	Indirect evidence	London, United KingdomHQ checked Sep 24, 2026	51-200	33 contacts →
	Indirect evidence “We are Parallel!” Source: RevenueBase Database · checked Sep 24, 2026
14	SEER	Partial evidence	London, United KingdomHQ checked Sep 24, 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 24, 2026
15	Beyondstaff	Indirect evidence	London, United KingdomHQ checked Sep 24, 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 24, 2026
16	Brainpool AI	Partial evidence	London, United KingdomHQ checked Sep 24, 2026	11-50	22 contacts →
	Partial evidence “Brainpool is an Artificial Intelligence services company powered by a global network of 500 AI and Machine Learning experts coming from some of the leading AI hubs such as UCL…” Source: RevenueBase Database · checked Sep 24, 2026
17	Langley James HR & IT Recruitment	Indirect evidence	London, United KingdomHQ checked Sep 24, 2026	11-50	21 contacts →
	Indirect evidence “Langley James Ltd is a market-leading HR & IT recruitment consultancy providing valued ‘Search’ services to SME's, MME's private and public sector companies and professional…” Source: RevenueBase Database · checked Sep 24, 2026
18	ERP Resource Base	Partial evidence	London, United KingdomHQ checked Sep 24, 2026	11-50	19 contacts →
	Partial evidence “Specialists in Staffing and Recruiting in IT.” Source: RevenueBase Database · checked Sep 24, 2026
19	pitchme.co	Indirect evidence	London, United KingdomHQ checked Sep 24, 2026	11-50	19 contacts →
	Indirect evidence “PitchMe delivers data intelligence for hiring teams, streamlining talent discovery with efficient tools.” Source: RevenueBase Database · checked Sep 24, 2026
20	Recognition ONE	Indirect evidence	London, United KingdomHQ checked Sep 24, 2026	11-50	17 contacts →
	Indirect evidence “Exceptional Talent for Amazing Technology Companies.” Source: RevenueBase Database · checked Sep 24, 2026
21	AI Futures	Partial evidence	London, United KingdomHQ checked Sep 24, 2026	11-50	17 contacts →
	Partial evidence “Our vision is to be the No.1 AI Recruiter on the planet.” Source: RevenueBase Database · checked Sep 24, 2026
22	Enigma	Partial evidence	London, United KingdomHQ checked Sep 24, 2026	1-10	15 contacts →
	Partial evidence “Here at Enigma, we specialize in Generative AI recruitment, specifically focused on Machine Learning and Software Engineering disciplines.” Source: RevenueBase Database · checked Sep 24, 2026
23	Asobbi	Partial evidence	London, United KingdomHQ checked Sep 24, 2026	11-50	13 contacts →
	Partial evidence “asobbi is a specialist talent and growth partner to the companies shaping the future of AI Infrastructure, Neocloud, High Performance Computing (HPC), Cloud and Data Centres.” Source: RevenueBase Database · checked Sep 24, 2026
24	Searchworks	Indirect evidence	London, United KingdomHQ checked Sep 24, 2026	11-50	13 contacts →
	Indirect evidence “We Build Technology Teams” Source: RevenueBase Database · checked Sep 24, 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 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 24 of 299 AI staffing firms based in London, United Kingdom

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

As of Sep 24, 2026

26.7%Verified-email coverage

7.3%Mobile-number coverage

11.2Average contacts per company

1-10Median size (employees)

Sep 24, 2026Page data refreshed

Companies by employee count

1-10

189

11-50

51-200

201-500

501-1,000

5,001-10,000

10001+

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 26.0d

6670–30

20831–60

1261–90

390–180

3180+

Company record updated

Median 75.0d

00–30

78831–60

1,41261–90

89790–180

249180+

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 London, 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 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, 893 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 24, 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 in the United Kingdom

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 London, United Kingdom?

RevenueBase identified 299 AI 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?

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

Which city in the United Kingdom has the most AI staffing firms?

London leads the United Kingdom 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 893 verified decision-maker contacts tracked across these 299 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 24, 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.