Company lists · Data refreshed September 2026
Top 25 Machine learning staffing based in the United Kingdom
RevenueBase identified 179 machine learning staffing headquartered in the United Kingdom as of September 2026 and tracks 1,684 professional contacts across them, including 499 with verified work emails and 148 with mobile numbers. London is the largest hub.
This list covers machine learning staffing 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, how directly it supports the match, and when it was last checked. Data refreshed September 5, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 machine learning staffing based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 239 | ||||
“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: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 2 | 145 | ||||
“Global Technology Recruitment Specialists.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 3 | 68 | ||||
“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: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 4 | 63 | ||||
“Helping innovative start-ups and fast-growing Tech companies rapidly scale their AI and Machine Learning teams.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 5 | 61 | ||||
“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: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 6 | 60 | ||||
“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: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 7 | 34 | ||||
“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: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 8 | MBN SolutionsIndirect evidence | 31 | |||
“MBN Solutions helps organisations build high-performing Data & AI capability - from senior leadership through to specialist teams.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 9 | 28 | ||||
“Certus Recruitment Group are the Global Specialist Recruiter to the Technology Sector.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 10 | 20 | ||||
“Are you ready to take your tech career to new heights or find the perfect tech talent for your company?” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 11 | 18 | ||||
“Who We Are We’re Method-specialist recruiters in Tech, Data, and AI.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 12 | 17 | ||||
“Exceptional Talent for Amazing Technology Companies.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 13 | 15 | ||||
“Timely.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 14 | 12 | ||||
“Who is Digital Republic Talent?” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 15 | 12 | ||||
“At Edge Tech, we specialise in recruiting for the technologies shaping the future: Artificial Intelligence, Intelligent Automation, Machine Learning and Data Science.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 16 | 11 | ||||
“We are on a mission to make people happier at work.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 17 | LogikkIndirect evidence | 11 | |||
“Specialist AI recruitment.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 18 | Southern Lights LTDIndirect evidence | 11 | |||
“Southern Lights has evolved into a forward-thinking tech recruitment agency, helping businesses cut through the noise and find the right talent to deliver real results.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 19 | Metrica RecruitmentIndirect evidence | 10 | |||
“Metrica Recruitment is a dedicated analytical recruitment agency specialising in placing advanced analytics and data science professionals across a multitude of industries…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 20 | 10 | ||||
“At Reuben Chase we specialise in recruiting global professionals from IT sectors with an extra personal touch.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 21 | 9 | ||||
“Paritas Recruitment is a specialist Audit (Business & IT), Risk (Credit, Market, Operational, Quantitative, Regulatory), Compliance and Data Engineering, Data Science, Machine…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 22 | 8 | ||||
“Hiring Partner for AI Vendors in Regulated Industries.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 23 | TechrecIndirect evidence | 8 | |||
“Sourcing top talent for fast growing technology companies.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 24 | 8 | ||||
“Higher is a specialist executive search firm with over 10 years' experience in data science and AI recruitment.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 25 | 8 | ||||
“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: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 179 machine learning staffing based in the United Kingdom
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Machine learning staffing based in the United Kingdom at a glance
As of Sep 5, 2026Companies by employee count
Verified emails by last verification
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 evidence 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 SmartSearch, 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 “machine learning staffing”. Matching reads each company's description, not its industry code or its name.
- 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 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 an evidence 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, 499 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 5, 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
- Machine learning staffing in London109
Frequently asked
How many machine learning staffing are there based in the United Kingdom?
RevenueBase identified 179 machine learning staffing 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 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 499 verified decision-maker contacts tracked across these 179 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 5, 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 SmartSearch, 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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