Company lists · Data refreshed September 2026

Top 9 Machine learning data preparation companies based in London, United Kingdom

RevenueBase identified 34 company matches for machine learning data preparation companies associated with London, United Kingdom as of September 2026 and tracks 566 professional contacts across them, including 102 with verified work emails and 28 with mobile numbers. Across the United Kingdom, London is the largest hub for this category.

This list covers company matches for machine learning data preparation companies associated with London, United Kingdom, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 13, 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 RevenueBase SmartSearch · Exact Recorded Sep 13, 2026 How this list was built
34Companies
566Contacts tracked
102Verified emails
28Mobile numbers
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The 9 largest machine learning data preparation companies based in London, United Kingdom

Ranked by team size
Top 9 of 34 company matches for machine learning data preparation companies based in London, United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 13, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchLondon, United KingdomHQ recorded Sep 13, 202651-200104 contacts →

Exact match

“DataEQ uses a Crowd of humans to label millions of unstructured data points.”

Recorded in the RevenueBase company graph · Sep 13, 2026 · View company records in RevenueBase
2Exact matchLondon, United KingdomHQ recorded Sep 13, 202651-20085 contacts →

Exact match

“Make the most of your data with enterprise-ready software that helps you extract, enrich, and discover your company’s most valuable knowledge.”

Recorded in the RevenueBase company graph · Sep 13, 2026 · View company records in RevenueBase
3Exact matchLondon, United KingdomHQ recorded Sep 13, 202611-507 contacts →

Exact match

“We are a company founded by a group of experience AI engineers who understand how painful it is to get high quality data to train a perfect model without making it hit hard on…”

Recorded in the RevenueBase company graph · Sep 13, 2026 · View company records in RevenueBase
4Exact matchLondon, United KingdomHQ recorded Sep 13, 202651-2003 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Sep 13, 2026 · View company records in RevenueBase
5Exact matchLondon, United KingdomHQ recorded Sep 13, 20261-102 contacts →

Exact match

“We combine an agile design methodology with the latest developments in machine learning and data science to offer you a range of solutions that are.”

Recorded in the RevenueBase company graph · Sep 13, 2026 · View company records in RevenueBase
6Exact matchLondon, United KingdomHQ recorded Sep 13, 20261-102 contacts →

Exact match

“Data Engineering Reinvented: Unlocking the Power of AI and Machine Learning: At Datacue, we believe that optimal data engineering is the foundation for AI and data science success.”

Recorded in the RevenueBase company graph · Sep 13, 2026 · View company records in RevenueBase
7Exact matchLondon, United KingdomHQ recorded Sep 13, 20261-102 contacts →

Exact match

“Our Services At ImpactML, we specialise in delivering cutting-edge AI and data solutions that drive real business impact.”

Recorded in the RevenueBase company graph · Sep 13, 2026 · View company records in RevenueBase
8Exact matchLondon, United KingdomHQ recorded Sep 13, 20261-101 contacts →

Exact match

“Machine Learning and Data Analytics for Business Intelligence”

Recorded in the RevenueBase company graph · Sep 13, 2026 · View company records in RevenueBase
9Exact matchLondon, United KingdomHQ recorded Sep 13, 20261-101 contacts →

Exact match

“Pappabee is a data and analytics services company.”

Recorded in the RevenueBase company graph · Sep 13, 2026 · View company records in RevenueBase

Showing 9 of 34 machine learning data preparation companies based in London, United Kingdom

See the full list, filter by size, metro and specialty, and access 102 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Machine learning data preparation companies based in London, United Kingdom at a glance

As of Sep 13, 2026
18.0%Verified-email coverage
4.9%Mobile-number coverage
16.6Average contacts per company
1-10Median size (employees)
Sep 13, 2026Page data refreshed

Companies by employee count

1-10
21
11-50
9
51-200
3
201-500
1

Freshness & accuracy

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

Email last verified

Median 17.0d

Company record updated

Median 80.0d

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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
Company records associated with London, United Kingdom whose business descriptions match “machine learning data preparation companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 102 professional contacts with verified work emails across the full matched dataset. 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.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “machine learning data preparation companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many machine learning data preparation companies are there based in London, United Kingdom?

RevenueBase identified 34 company matches for machine learning data preparation companies associated with London, United Kingdom as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Dataeq tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United Kingdom has the most machine learning data preparation companies?

London leads the United Kingdom with 33 company records, followed by Cardiff (3) and Birmingham (2).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 102 professional contacts with verified work emails tracked across these 34 companies; direct dials are available where recorded.

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 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.