Company lists · Data refreshed September 2026

Top 25 Data science consulting firms based in the United Kingdom

Name: Data science consulting firms based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 1, 2026 1,312 companies tracked

RevenueBase identified 1,312 data science consulting firms headquartered in the United Kingdom as of September 2026 and tracks 13,177 professional contacts across them, including 4,868 with verified work emails and 902 with mobile numbers. London is the largest hub.

This list covers data science consulting firms 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 1, 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 RevenueBase Smart Search rating on every row Refreshed Sep 1, 2026 86% judged on-target in blind review

1,312Companies

13,177Contacts tracked

4,868Verified emails

902Mobile numbers

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The 25 largest data science consulting firms based in the United Kingdom

Ranked by team size

Top 25 of 1,312 data science consulting firms based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 1, 2026. RevenueBase Smart Search rates how each company's information relates to data science consulting 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	First Derivative	Partial evidence	Newry, United Kingdom	1,001-5,000	1,022 contacts →
	Partial evidence “First Derivative is driven by people, data, and technology, unlocking the value of insight, hindsight, and foresight to drive organizations forward.” Source: RevenueBase Database · checked Sep 1, 2026
2	The Smart Cube	Indirect evidence	London, United Kingdom	501-1,000	717 contacts →
	Indirect evidence “We provide high performing intelligence that answers critical business questions for leading companies around the world.” Source: RevenueBase Database · checked Sep 1, 2026
3	Putnam	Partial evidence	London, United Kingdom	201-500	401 contacts →
	Partial evidence “We are now Inizio Ignite, the global advisory partner for health and life sciences, encompassing connected expertise across Research Partnership, Putnam, Vynamic, and STEM.” Source: RevenueBase Database · checked Sep 1, 2026
4	Softwire	Indirect evidence	London, United Kingdom	201-500	356 contacts →
	Indirect evidence “Softwire exists to help organisations use technology to deliver meaningful outcomes and a positive impact for themselves, their users and the world.” Source: RevenueBase Database · checked Sep 1, 2026
5	NEPA	Indirect evidence	London, United Kingdom	201-500	307 contacts →
	Indirect evidence “At Nepa, we believe that every brand has the potential to achieve long-term success.” Source: RevenueBase Database · checked Sep 1, 2026
6	4most	Partial evidence	London, United Kingdom	201-500	271 contacts →
	Partial evidence “We are 4most: the go-to analytics consultancy for financial institutions who want to make better, data-driven decisions with confidence.” Source: RevenueBase Database · checked Sep 1, 2026
7	Innova-Tsn	Partial evidence	London, United Kingdom	201-500	271 contacts →
	Partial evidence “Innova-tsn is a Spanish multinational consulting firm founded 21 years ago, which has grown to position itself as one of the undisputed industry leaders in the design and…” Source: RevenueBase Database · checked Sep 1, 2026
8	Thorogood	Partial evidence	London, United Kingdom	201-500	228 contacts →
	Partial evidence “Thorogood is an independent consultancy that provides end-to-end data, AI and analytics solutions.” Source: RevenueBase Database · checked Sep 1, 2026
9	Quantco	Indirect evidence	London, United Kingdom	201-500	226 contacts →
	Indirect evidence “QuantCo turns advances in artificial intelligence and statistical learning into real-world impact in leading enterprises and public sector organizations.” Source: RevenueBase Database · checked Sep 1, 2026
10	The Information LAB	Indirect evidence	London, United Kingdom	51-200	202 contacts →
	Indirect evidence “The Information Lab is on a mission.” Source: RevenueBase Database · checked Sep 1, 2026
11	ELAIT	Partial evidence	London, United Kingdom	51-200	186 contacts →
	Partial evidence “Elait exists to transform unwieldy data into a competitive advantage.” Source: RevenueBase Database · checked Sep 1, 2026
12	CF	Indirect evidence	London, United Kingdom	51-200	186 contacts →
	Indirect evidence “CF is a leading consultancy dedicated to making an enduring impact on health and healthcare.” Source: RevenueBase Database · checked Sep 1, 2026
13	Cloudsmiths	Partial evidence	London, United Kingdom	51-200	150 contacts →
	Partial evidence “CloudSmiths is a technology consultancy specialising in data analytics, machine learning, software development, AI and business reporting in the cloud.” Source: RevenueBase Database · checked Sep 1, 2026
14	Sagacity	Partial evidence	London, United Kingdom	51-200	148 contacts →
	Partial evidence “Sagacity are the data intelligence people.” Source: RevenueBase Database · checked Sep 1, 2026
15	Simpson Associates	Partial evidence	York, United Kingdom	51-200	116 contacts →
	Partial evidence “Microsoft Partner of the Year 2024, Simpson Associates is a Data Transformation and managed services provider that helps organisations from both the public and private sectors…” Source: RevenueBase Database · checked Sep 1, 2026
16	Calligo	Partial evidence	Leicester, United Kingdom	201-500	111 contacts →
	Partial evidence “Calligo transforms data into your most lucrative asset.” Source: RevenueBase Database · checked Sep 1, 2026
17	Oakland Everything Data	Partial evidence	London, United Kingdom	51-200	95 contacts →
	Partial evidence “Oakland is a consultancy focused exclusively on liberating and activating data.” Source: RevenueBase Database · checked Sep 1, 2026
18	Groupbwt	Strong evidence	London, United Kingdom	51-200	92 contacts →
	Strong evidence “GroupBWT is a consulting firm specializing in data management and the construction of data platforms.” Source: RevenueBase Database · checked Sep 1, 2026
19	Predictx	Indirect evidence	London, United Kingdom	51-200	83 contacts →
	Indirect evidence “PredictX empowers our clients to predict and automate critical business decisions.” Source: RevenueBase Database · checked Sep 1, 2026
20	Singulier	Indirect evidence	London, United Kingdom	51-200	79 contacts →
	Indirect evidence “With a presence in Paris, London, and Munich, Singulier partners with private equity funds, portfolio companies, and corporates to accelerate transformation and unlock value…” Source: RevenueBase Database · checked Sep 1, 2026
21	Tecknoworks	Partial evidence	London, United Kingdom	51-200	79 contacts →
	Partial evidence “To this day, we’ve delivered projects, driven by a passion for solving real business problems with data and AI.” Source: RevenueBase Database · checked Sep 1, 2026
22	Global Pricing Innovations GPI	Partial evidence	London, United Kingdom	51-200	75 contacts →
	Partial evidence “Global Pricing Innovations (GPI) helps life sciences teams make faster, better pricing and market access decisions using proprietary datasets and proven forecasting methods, built…” Source: RevenueBase Database · checked Sep 1, 2026
23	Bigspark	Partial evidence	Nottingham, United Kingdom	51-200	67 contacts →
	Partial evidence “Data & AI focussed technology consultancy with specialism in delivering for regulated industries” Source: RevenueBase Database · checked Sep 1, 2026
24	Seriös Group	Partial evidence	Newcastle Upon Tyne, United Kingdom	51-200	64 contacts →
	Partial evidence “Seriös Group are experts in data solutions, helping businesses to take control of their data, delivering rapid value without compromise.” Source: RevenueBase Database · checked Sep 1, 2026
25	Marionete	Strong evidence	London, United Kingdom	51-200	53 contacts →
	Strong evidence “Marionete is a technology consulting firm that empowers organizations to design innovative data strategies, drive digital transformation, and build advanced digital platforms.” Source: RevenueBase Database · checked Sep 1, 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: data science consulting 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 data science consulting firms.
Partial evidence: Its own public description names part of data science consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name data science consulting 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 25 of 1,312 data science consulting firms based in the United Kingdom

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Data science consulting firms based in the United Kingdom at a glance

As of Sep 1, 2026

36.9%Verified-email coverage

6.8%Mobile-number coverage

10.0Average contacts per company

1-10Median size (employees)

50.6%Largest-city concentration · London

Sep 1, 2026Page data refreshed

Companies by employee count

1-10

932

11-50

275

51-200

201-500

501-1,000

1,001-5,000

10001+

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 data science consulting 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 the United Kingdom whose own description of what they do matches “data science consulting 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 data science consulting 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 data science consulting firms, 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 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, 4,868 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 1, 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.

Data science consulting firms by metro

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 data science consulting 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 data science consulting firms are there based in the United Kingdom?

RevenueBase identified 1,312 data science consulting firms 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?

First Derivative, headquartered in Newry, tops this list with the largest team on record.

Which city has the most data science consulting firms?

London leads with 664 headquartered companies, followed by Manchester (48) and Leeds (20).

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 4,868 verified decision-maker contacts tracked across these 1,312 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 1, 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.