Company lists · Data refreshed September 2026

Top 25 Data analytics agencies based in London, United Kingdom

Name: Data analytics agencies based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 909 companies tracked

RevenueBase identified 909 data analytics agencies headquartered in London, United Kingdom as of September 2026 and tracks 29,066 professional contacts across them, including 11,439 with verified work emails. London is the largest hub.

This list covers data analytics agencies headquartered in London, 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 21, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 21, 2026 86% judged on-target in blind review

909Companies

29,066Contacts tracked

11,439Verified emails

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The 25 largest data analytics agencies based in London, United Kingdom

Ranked by team size

Top 25 of 909 data analytics agencies based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to data analytics agencies: 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	Kantar	Strong evidence	London, United KingdomHQ checked Sep 21, 2026	10001+	15,564 contacts →
	Strong evidence “Kantar is the world’s leading marketing data and analytics business.” Source: RevenueBase Database · checked Sep 21, 2026
2	The Smart Cube	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	501-1,000	702 contacts →
	Indirect evidence “We provide high performing intelligence that answers critical business questions for leading companies around the world.” Source: RevenueBase Database · checked Sep 21, 2026
3	4most	Strong evidence	London, United KingdomHQ checked Sep 21, 2026	201-500	270 contacts →
	Strong 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 21, 2026
4	Thorogood	Strong evidence	London, United KingdomHQ checked Sep 21, 2026	201-500	230 contacts →
	Strong evidence “Thorogood is an independent consultancy that provides end-to-end data, AI and analytics solutions.” Source: RevenueBase Database · checked Sep 21, 2026
5	Quantzig	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	201-500	216 contacts →
	Partial evidence “Quantzig is at the forefront of partnering with businesses to help them unlock transformative value through analytics solutions.” Source: RevenueBase Database · checked Sep 21, 2026
6	The Information LAB	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	197 contacts →
	Indirect evidence “The Information Lab is on a mission.” Source: RevenueBase Database · checked Sep 21, 2026
7	Kinesso Uk&i	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	501-1,000	194 contacts →
	Indirect evidence “KINESSO UK is the award-winning, tech-driven performance marketing agency delivering actionable growth for direct clients and agency partners.” Source: RevenueBase Database · checked Sep 21, 2026
8	OUTRA	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	n/a	189 contacts →
	Partial evidence “Outra provides the audience data that household names like Sky, Shell, Zoopla and AXA rely on to power their campaigns.” Source: RevenueBase Database · checked Sep 21, 2026
9	ELAIT	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	186 contacts →
	Partial evidence “Elait exists to transform unwieldy data into a competitive advantage.” Source: RevenueBase Database · checked Sep 21, 2026
10	Sagacity	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	150 contacts →
	Partial evidence “Sagacity are the data intelligence people.” Source: RevenueBase Database · checked Sep 21, 2026
11	Fornova	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	150 contacts →
	Partial evidence “Fornova empowers the global travel and hospitality industry to optimize distribution, generate demand and maximize revenue by delivering best-in-class, data-driven Business…” Source: RevenueBase Database · checked Sep 21, 2026
12	VERVE	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	141 contacts →
	Indirect evidence “Verve – Turn Human Truth into Superhuman Advantage™ Innovation of the Year 2024, ESOMAR Excellence in AI and Automation, ESOMAR Outstanding Contribution to Consumer Insight -…” Source: RevenueBase Database · checked Sep 21, 2026
13	Business Science Corporation	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	140 contacts →
	Indirect evidence “Business Science Corporation apply science and technology in order to ensure that our clients significantly increase their performance by giving them both the knowledge to perform…” Source: RevenueBase Database · checked Sep 21, 2026
14	Rocsearch	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	125 contacts →
	Indirect evidence “RocSearch is an industry leader in customised business intelligence solutions.” Source: RevenueBase Database · checked Sep 21, 2026
15	Ampere Analysis	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	115 contacts →
	Indirect evidence “Founded in January 2015 and based in London, Ampere Analysis is a fast-growing analyst firm with an experienced team of sector-leading industry analysts specialising in media…” Source: RevenueBase Database · checked Sep 21, 2026
16	Opinium Insights With Impact	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	104 contacts →
	Indirect evidence “Opinium is a multi-award-winning strategic insight agency, twice recognised Market Research Society (MRS)'Agency of the Year' in the past five years.” Source: RevenueBase Database · checked Sep 21, 2026
17	Alpharithm Technologies Private Limited	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	99 contacts →
	Partial evidence “Alpharithm Technologies is a multi award winning Consultancy, specializing in Data and AI.” Source: RevenueBase Database · checked Sep 21, 2026
18	Neudata	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	98 contacts →
	Partial evidence “The authoritative source for global data intelligence Neudata provides actionable, unbiased market intelligence to buyers and sellers of market and alternative data.” Source: RevenueBase Database · checked Sep 21, 2026
19	Curve Analytics	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	97 contacts →
	Partial evidence “Curve is a fast-growing digital insights consultancy which harnesses the power of unstructured data to generate actionable insights, unleashing growth for businesses.” Source: RevenueBase Database · checked Sep 21, 2026
20	TUG Agency	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	97 contacts →
	Indirect evidence “Tug is an independent, AI-powered brand and performance marketing agency that helps businesses anticipate change, innovate with confidence and deliver real, incremental growth.” Source: RevenueBase Database · checked Sep 21, 2026
21	Strat7	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	201-500	88 contacts →
	Partial evidence “STRAT7 is a global tech-enabled strategy, insights and analytics group.” Source: RevenueBase Database · checked Sep 21, 2026
22	Datavid	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	85 contacts →
	Partial evidence “Make the most of your data with enterprise-ready software that helps you extract, enrich, and discover your company’s most valuable knowledge.” Source: RevenueBase Database · checked Sep 21, 2026
23	Foresight Factory	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	82 contacts →
	Indirect evidence “We transform business through strategic consulting.” Source: RevenueBase Database · checked Sep 21, 2026
24	Cognition Solutions	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	201-500	79 contacts →
	Partial evidence “With 26+ years of experience and more than 500+ professionals, Cognition empowers growth for B2B organizations by delivering reliable data, intelligence, and actionable insights…” Source: RevenueBase Database · checked Sep 21, 2026
25	2cv	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	76 contacts →
	Indirect evidence “Not just insight.” Source: RevenueBase Database · checked Sep 21, 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 analytics agencies. 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 analytics agencies.
Partial evidence: Its own public description names part of data analytics agencies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name data analytics agencies. 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 909 data analytics agencies based in London, United Kingdom

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Data analytics agencies based in London, United Kingdom at a glance

As of Sep 21, 2026

39.4%Verified-email coverage

32.0Average contacts per company

1-10Median size (employees)

100.0%Largest-city concentration · London

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

570

11-50

236

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured across the whole United Kingdom list rather than for London, so it is reported there. Company counts and contact totals on this page are exact for London, over 909 companies.

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 analytics agencies, 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 London, United Kingdom whose own description of what they do matches “data analytics agencies”. 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 analytics agencies), 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 analytics agencies, and records with no verified work email. Companies headquartered outside London 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, 11,439 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 21, 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 analytics agencies by metro in the United Kingdom

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 analytics agencies, 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 analytics agencies are there based in London, United Kingdom?

RevenueBase identified 909 data analytics agencies headquartered in London, 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?

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

Which city has the most data analytics agencies?

London leads with 909 headquartered companies, followed by Manchester (70) and Leeds (36).

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 11,439 verified decision-maker contacts tracked across these 909 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 21, 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.