Company lists · Data refreshed September 2026

Top 25 Machine learning staffing based in London, United Kingdom

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

Compiled by the RevenueBase Data Team Data refreshed Sep 13, 2026 109 companies tracked

RevenueBase identified 109 machine learning staffing headquartered in London, United Kingdom as of September 2026 and tracks 1,287 professional contacts across them, including 369 with verified work emails and 108 with mobile numbers. London is the largest hub.

This list covers machine learning staffing 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 13, 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 13, 2026 86% judged on-target in blind review

109Companies

1,287Contacts tracked

369Verified emails

108Mobile numbers

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The 25 largest machine learning staffing based in London, United Kingdom

Ranked by team size

Top 25 of 109 machine learning staffing based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 13, 2026. RevenueBase Smart Search rates how each company's information relates to machine learning staffing: 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	XCEDE	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	51-200	145 contacts →
	Indirect evidence “Global Technology Recruitment Specialists.” Source: RevenueBase Database · checked Sep 13, 2026
2	Twentyai	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	51-200	68 contacts →
	Partial 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 13, 2026
3	Signify Technology	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	61 contacts →
	Indirect 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 13, 2026
4	Third Republic	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	51-200	60 contacts →
	Indirect 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 13, 2026
5	Recognition ONE	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	17 contacts →
	Indirect evidence “Exceptional Talent for Amazing Technology Companies.” Source: RevenueBase Database · checked Sep 13, 2026
6	Digital Republic Talent	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	12 contacts →
	Indirect evidence “Who is Digital Republic Talent?” Source: RevenueBase Database · checked Sep 13, 2026
7	Truenorth	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	11 contacts →
	Indirect evidence “We are on a mission to make people happier at work.” Source: RevenueBase Database · checked Sep 13, 2026
8	Logikk	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	1-10	11 contacts →
	Indirect evidence “Specialist AI recruitment.” Source: RevenueBase Database · checked Sep 13, 2026
9	Reuben Chase	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	10 contacts →
	Indirect evidence “At Reuben Chase we specialise in recruiting global professionals from IT sectors with an extra personal touch.” Source: RevenueBase Database · checked Sep 13, 2026
10	Paritas Recruitment	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	9 contacts →
	Partial evidence “Paritas Recruitment is a specialist Audit (Business & IT), Risk (Credit, Market, Operational, Quantitative, Regulatory), Compliance and Data Engineering, Data Science, Machine…” Source: RevenueBase Database · checked Sep 13, 2026
11	Techrec	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	1-10	8 contacts →
	Indirect evidence “Sourcing top talent for fast growing technology companies.” Source: RevenueBase Database · checked Sep 13, 2026
12	Codesearch AI	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	1-10	8 contacts →
	Indirect evidence “We are a specialist AI search firm operating at the frontier of ML Research and Applied AI - placing elite talent across Systematic & Quantitative Finance, Robotics & Autonomous…” Source: RevenueBase Database · checked Sep 13, 2026
13	Techire AI	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	1-10	7 contacts →
	Indirect evidence “Techire AI - Your Gen AI Hiring Partner.” Source: RevenueBase Database · checked Sep 13, 2026
14	Detail Cloud Technology	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	1-10	7 contacts →
	Indirect evidence “DETAIL Cloud Recruitment Our Expertise At DETAIL, we focus exclusively on the appointment of skilled technology professionals withi the areas of AI, ML roles and Data Architecture.” Source: RevenueBase Database · checked Sep 13, 2026
15	Perseus People	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	1-10	5 contacts →
	Partial evidence “Perseus People is a boutique staffing agency, focused within software development, AI, data and cloud.” Source: RevenueBase Database · checked Sep 13, 2026
16	Madison Bridge	Strong evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	5 contacts →
	Strong evidence “At Madison Bridge, we specialise in connecting top-tier talent with cutting-edge opportunities in Generative AI, Machine Learning, and Data Science.” Source: RevenueBase Database · checked Sep 13, 2026
17	Mind Detect	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	1-10	4 contacts →
	Indirect evidence “We're a dedicated recruiter bringing together the brightest talent with organisations creating cutting-edge technology to change the world for the better.” Source: RevenueBase Database · checked Sep 13, 2026
18	Costello & Reyes Group Limited	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	4 contacts →
	Indirect evidence “Costello & Reyes Group is one of the UK’s leading providers of recruitment services and advice to the Data Science and Artificial Intelligence sectors.” Source: RevenueBase Database · checked Sep 13, 2026
19	Primehire	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	1-10	3 contacts →
	Indirect evidence “At primehire, we specialize in connecting exceptional talent with the companies shaping the future of AI.” Source: RevenueBase Database · checked Sep 13, 2026
20	Tekrek Consultants	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	1-10	3 contacts →
	Partial evidence “TekRek Consultants has been a trusted provider of IT recruitment and staffing services for the past five years, connecting organisations with highly specialised IT professionals.” Source: RevenueBase Database · checked Sep 13, 2026
21	Metaworx Europe LTD	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	1-10	3 contacts →
	Indirect evidence “Meta-Worx Europe is a technology recruitment firm that combines AI technology with decades of headhunting experience.” Source: RevenueBase Database · checked Sep 13, 2026
22	A-Tech Recruitment	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	1-10	3 contacts →
	Indirect evidence “A-Tech is a forward-thinking recruitment agency that provides top Software & AI Talent to the world's most exciting start-ups across the United States & Germany.” Source: RevenueBase Database · checked Sep 13, 2026
23	Obsidian Search	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	1-10	3 contacts →
	Indirect evidence “Any recruitment agency can send CVs.” Source: RevenueBase Database · checked Sep 13, 2026
24	ISABA	Strong evidence	London, United KingdomHQ checked Sep 13, 2026	1-10	3 contacts →
	Strong evidence “Isaba \| AI & Machine Learning Recruitment Experts At Isaba, we specialize in connecting forward-thinking companies with exceptional talent in the AI and Machine Learning space.” Source: RevenueBase Database · checked Sep 13, 2026
25	odiin.ai	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	2 contacts →
	Partial evidence “Odiin is a global leader in the technical staffing industry, specializing in AI and emerging technologies.” Source: RevenueBase Database · checked Sep 13, 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: machine learning staffing. 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 machine learning staffing.
Partial evidence: Its own public description names part of machine learning staffing, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name machine learning staffing. 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 109 machine learning staffing based in London, United Kingdom

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Machine learning staffing based in London, United Kingdom at a glance

As of Sep 13, 2026

28.7%Verified-email coverage

8.4%Mobile-number coverage

11.8Average contacts per company

1-10Median size (employees)

100.0%Largest-city concentration · London

Sep 13, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

Freshness & accuracy

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

Email last verified

Median 15.0d

2750–30

8731–60

461–90

290–180

1180+

Company record updated

Median 74.0d

00–30

55531–60

49361–90

16290–180

77180+

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 machine learning staffing, 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 “machine learning staffing”. 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 machine learning staffing), 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 machine learning staffing, 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, 369 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 13, 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.

Machine learning staffing by metro in the United Kingdom

Machine learning staffing in London109

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 machine learning staffing, 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 machine learning staffing are there based in London, United Kingdom?

RevenueBase identified 109 machine learning staffing 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?

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

Which city has the most machine learning staffing?

London leads with 109 headquartered companies, followed by Manchester (9) and Bristol (7).

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 369 verified decision-maker contacts tracked across these 109 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 13, 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.