Company lists · Data verified August 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 Verified Aug 28, 2026 1,312 companies tracked

There are 1,312 data science consulting firms headquartered in the United Kingdom (RevenueBase, August 2026). RevenueBase 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. Data current as of August 28, 2026.

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 verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	First Derivative	Newry	1,001-5,000	1,022	525
2	The Smart Cube	London	501-1,000	717	239
3	Putnam	London	201-500	401	239
4	Softwire	London	201-500	356	136
5	NEPA	London	201-500	307	134
6	4most	London	201-500	271	182
7	Innova-Tsn	London	201-500	271	40
8	Thorogood	London	201-500	228	36
9	Quantco	London	201-500	226	180
10	The Information LAB	London	51-200	202	102
11	ELAIT	London	51-200	186	81
12	CF	London	51-200	186	79
13	Cloudsmiths	London	51-200	150	8
14	Sagacity	London	51-200	148	105
15	Simpson Associates	York	51-200	116	70
16	Calligo	Leicester	201-500	111	68
17	Oakland Everything Data	London	51-200	95	37
18	Groupbwt	London	51-200	92	7
19	Predictx	London	51-200	83	47
20	Singulier	London	51-200	79	50
21	Tecknoworks	London	51-200	79	42
22	Global Pricing Innovations GPI	London	51-200	75	52
23	Bigspark	Nottingham	51-200	67	43
24	Seriös Group	Newcastle Upon Tyne	51-200	64	45
25	Marionete	London	51-200	53	26

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 Aug 28, 2026

1-10Median size (employees)

LondonLargest hub · 664 HQs

902Contacts with mobile numbers

12Emails re-verified in last 30 days

Companies by employee count

1-10

932

11-50

275

51-200

201-500

501-1,000

1,001-5,000

10001+

Data science consulting firms by metro

Metro	Companies
Data science consulting firms in London	664
Data science consulting firms in Manchester	48
Data science consulting firms in Leeds	20
Data science consulting firms in Cambridge	16
Data science consulting firms in Edinburgh	14
Data science consulting firms in Oxford	14
Data science consulting firms in Bristol	13

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “data science consulting firms”, with match quality audited by blind human judging, and headquartered in the United Kingdom.
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: Contact records re-verify on a rolling cadence; 12 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

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

There are 1,312 data science consulting firms headquartered in the United Kingdom as of August 2026 (RevenueBase).

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 is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.