Company lists · Data refreshed September 2026

Top 17 Machine learning inference companies based in the United Kingdom

RevenueBase identified 53 machine learning inference companies headquartered in the United Kingdom as of September 2026 and tracks 867 professional contacts across them, including 498 with verified work emails and 47 with mobile numbers. London is the largest hub.

This list covers machine learning inference 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, 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.

How to read this list HQ checked on every row Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review
53Companies
867Contacts tracked
498Verified emails
47Mobile numbers
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The 17 largest machine learning inference companies based in the United Kingdom

Ranked by team size
Top 17 of 53 machine learning inference companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names machine learning inference companies: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#CompanyHeadquartersEmployeesContacts
1
InstadeepIndirect evidence
London, United KingdomHQ checked Sep 5, 2026201-500447

“InstaDeep is a pioneer in decision-making AI, driven by the belief that AI can help everyone.”

Source: company website · checked Sep 5, 2026
2
SeldonStrong evidence
London, United KingdomHQ checked Sep 5, 202651-20065

“Since 2014, Seldon has been at the forefront of developing global infrastructure that enables enterprises to take control of complexity in machine learning.”

Source: company website · checked Sep 5, 2026
3
KRAIIndirect evidence
Cambridge, United KingdomHQ checked Sep 5, 202611-5016

“Established in 2020 in "Silicon Fen"(Cambridge, UK), KRAI are the purveyors of premium benchmarking and optimization solutions tailored for engineering ultra-efficient and…”

Source: company website · checked Sep 5, 2026
4
Cantab PIIndirect evidence
Cambridge, United KingdomHQ checked Sep 5, 202611-5013

“Cantab π is a data science company which helps companies create value by harnessing knowledge embedded in data.”

Source: company website · checked Sep 5, 2026
5
Mystic AIIndirect evidence
London, United KingdomHQ checked Sep 5, 202611-506

“At Mystic, we make it extremely easy to run AI models.”

Source: company website · checked Sep 5, 2026
6
3rdiIndirect evidence
London, United KingdomHQ checked Sep 5, 20261-104

“Prophesee, the platform behind 3RDi.”

Source: company website · checked Sep 5, 2026
7
Cynthia SystemsStrong evidence
Ruislip, United KingdomHQ checked Sep 5, 20261-104

“We excel in developing advanced AI and machine learning platforms meticulously designed to meet the distinct requirements of our clientele.”

Source: company website · checked Sep 5, 2026
8
Qvantia AIIndirect evidence
London, United KingdomHQ checked Sep 5, 20261-103

“A unified ML and AI platform, empowering organisations to operate throughout the steps of ML and AI.”

Source: company website · checked Sep 5, 2026
9
BrightblueStrong evidence
London, United KingdomHQ checked Sep 5, 202651-2003

“AI and machine learning as part of the larger data science and data engineering field are creating the new wave of strategic and operational value.”

Source: company website · checked Sep 5, 2026
10
TitanmlPartial evidence
London, United KingdomHQ checked Sep 5, 202611-502

“Build, deploy, and scale Enterprise AI applications in your secure environment with the Titan Takeoff Inference Server Discord: https://discord.gg/83RmHTjZgf”

Source: company website · checked Sep 5, 2026
11
Lightgate TechnologiesIndirect evidence
London, United KingdomHQ checked Sep 5, 20261-102
Source: company website · checked Sep 5, 2026
12
Aitonomy LimitedStrong evidence
London, United KingdomHQ checked Sep 5, 20261-102

“Ai and Machine Learning for Financial Markets”

Source: company website · checked Sep 5, 2026
13
CyberdesIndirect evidence
Cardiff, United KingdomHQ checked Sep 5, 202611-501

“Our products and services help customers accelerate the development and deployment of AI applications.”

Source: company website · checked Sep 5, 2026
14
HypercascadeIndirect evidence
Cardiff, United KingdomHQ checked Sep 5, 20261-101

“We figure out new things that our customers need to grow their business.”

Source: company website · checked Sep 5, 2026
15
QuanovoStrong evidence
Liverpool, United KingdomHQ checked Sep 5, 20261-101

“Quanovo is a Data Science Company that focuses on Deep Learning and other Machine Learning technologies.”

Source: company website · checked Sep 5, 2026
16
MetacoderIndirect evidence
London, United KingdomHQ checked Sep 5, 20261-101

“Pragmatic AI/ML solutions built to fit your organisation.”

Source: company website · checked Sep 5, 2026
17
Greenhouse IntelligenceIndirect evidence
London, United KingdomHQ checked Sep 5, 20261-101

“Bringing together leaders from the field of business-focused artificial intelligence, greenhouse intelligence enables enterprises to exploit artificial intelligence at scale.”

Source: company website · checked Sep 5, 2026

Showing 17 of 53 machine learning inference companies based in the United Kingdom

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Machine learning inference companies based in the United Kingdom at a glance

As of Sep 5, 2026
1-10Median size (employees)
LondonLargest hub · 31 HQs
47Contacts with mobile numbers
Sep 5, 2026Data refreshed

Companies by employee count

1-10
38
11-50
8
51-200
5
201-500
2

Verified emails by last verification

0–30
464
31–60
34
61–90
0
90–180
0
180+
0

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 inference companies, 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 inference companies”. 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 inference 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 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, 498 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 inference companies by metro

  • Machine learning inference companies in London31

Frequently asked

How many machine learning inference companies are there based in the United Kingdom?

RevenueBase identified 53 machine learning inference 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?

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

Which city has the most machine learning inference companies?

London leads with 31 headquartered companies, followed by Cambridge (3) and Cardiff (3).

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 498 verified decision-maker contacts tracked across these 53 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.