Company lists · Data refreshed September 2026

Top 25 Market research agencies based in the United Kingdom

Name: Market research agencies based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 580 companies tracked

RevenueBase identified 580 market research agencies headquartered in the United Kingdom as of September 2026 and tracks 10,290 professional contacts across them, including 3,405 with verified work emails and 902 with mobile numbers. London is the largest hub.

This list covers market research agencies 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

580Companies

10,290Contacts tracked

3,405Verified emails

902Mobile numbers

Unlock all 580 companies Free signup · no credit card · 500 free credits

The 25 largest market research agencies based in the United Kingdom

Ranked by team size

Top 25 of 580 market research agencies 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 market research agencies: 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.
#	Company	Headquarters	Employees	Contacts
1	Ipsos In The UKIndirect evidence	London, United KingdomHQ checked Sep 5, 2026	1,001-5,000	1,621
	“In our world of rapid change, the need for reliable information to make confident decisions has never been greater.” Source: company website · checked Sep 5, 2026
2	MintelIndirect evidence	London, United KingdomHQ checked Sep 5, 2026	1,001-5,000	1,475
	“At Mintel, we empower businesses to navigate the future with confidence.” Source: company website · checked Sep 5, 2026
3	Consulting By KantarPartial evidence	London, United KingdomHQ checked Sep 5, 2026	501-1,000	502
	“Kantar is the world’s leading marketing data and analytics company.” Source: company website · checked Sep 5, 2026
4	SavantaStrong evidence	London, United KingdomHQ checked Sep 5, 2026	501-1,000	464
	“Savanta is a fast-growing data, market research and advisory company.” Source: company website · checked Sep 5, 2026
5	IFF ResearchStrong evidence	London, United KingdomHQ checked Sep 5, 2026	51-200	420
	“Established in 1965, IFF is a social and market research agency who helps people make better informed decisions.” Source: company website · checked Sep 5, 2026
6	Ronin InternationalStrong evidence	London, United KingdomHQ checked Sep 5, 2026	51-200	312
	“RONIN International is an independent B2B market research company specialising in business, healthcare and tech studies.” Source: company website · checked Sep 5, 2026
7	Kudos ResearchStrong evidence	London, United KingdomHQ checked Sep 5, 2026	n/a	213
	“Kudos Research has been providing high value, competitively priced, market research services to both internal and external clients since 1986.” Source: company website · checked Sep 5, 2026
8	B2B InternationalStrong evidence	London, United KingdomHQ checked Sep 5, 2026	51-200	178
	“The world’s most experienced B2B market research company.” Source: company website · checked Sep 5, 2026
9	MRSStrong evidence	London, United KingdomHQ checked Sep 5, 2026	11-50	147
	“Where Evidence Matters I The Market Research Society (MRS) is the world’s leading research association, driven by the principle that evidence matters.” Source: company website · checked Sep 5, 2026
10	BMG ResearchPartial evidence	Birmingham, United KingdomHQ checked Sep 5, 2026	51-200	132
	“BMG Research is an award-winning social research and analytics agency.” Source: company website · checked Sep 5, 2026
11	Strat7 ResearchbodsPartial evidence	London, United KingdomHQ checked Sep 5, 2026	51-200	106
	“Researchbods delivers insight that drives action for ambitious brands.” Source: company website · checked Sep 5, 2026
12	Opinium Insights With ImpactStrong evidence	London, United KingdomHQ checked Sep 5, 2026	51-200	104
	“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: company website · checked Sep 5, 2026
13	QA ResearchPartial evidence	York, United KingdomHQ checked Sep 5, 2026	11-50	72
	“Qa Research has merged with Blue Marble Research and Pye Tait Consulting to create Navigator Insight.” Source: company website · checked Sep 5, 2026
14	CensuswideStrong evidence	London, United KingdomHQ checked Sep 5, 2026	51-200	71
	“Censuswide is a consultancy that specialises in quantitative and qualitative market research for PR, marketing and insight purposes.” Source: company website · checked Sep 5, 2026
15	MASMIStrong evidence	London, United KingdomHQ checked Sep 5, 2026	201-500	69
	“MASMI is a full-service international market research company with broad industry expertise specialising in delivering research insights and decision support, based on state of…” Source: company website · checked Sep 5, 2026
16	Perspective Research ServicesIndirect evidence	London, United KingdomHQ checked Sep 5, 2026	11-50	68
	“Perspective is now part of Ipsos, and using the Ipsos brand name, following acquisition in June 2025.” Source: company website · checked Sep 5, 2026
17	The Nursery Research & PlanningPartial evidence	London, United KingdomHQ checked Sep 5, 2026	11-50	66
	“Research that helps brands glow and grow’ is the simple expression of everything we do.” Source: company website · checked Sep 5, 2026
18	ESA RetailIndirect evidence	St Albans, United KingdomHQ checked Sep 5, 2026	51-200	62
	“ESA Retail is now part of Ipsos, and using the Ipsos brand name, following acquisition in June 2025.” Source: company website · checked Sep 5, 2026
19	Explain Market ResearchStrong evidence	Newcastle Upon Tyne, United KingdomHQ checked Sep 5, 2026	51-200	54
	“Explain is a market research agency that is committed to creating insightful and dynamic partnerships that deliver powerful and intelligent results.” Source: company website · checked Sep 5, 2026
20	Serrula ResearchStrong evidence	London, United KingdomHQ checked Sep 5, 2026	11-50	47
	“Serrula Research is a London based market research agency specialising in recruitment, expert network sourcing, and tailored fieldwork.” Source: company website · checked Sep 5, 2026
21	Sapio ResearchStrong evidence	London, United KingdomHQ checked Sep 5, 2026	11-50	40
	“We’re a Certified B Corp™, full-service market research agency based in London, and we're experts in B2B & Technology market research.” Source: company website · checked Sep 5, 2026
22	Potentia InsightStrong evidence	London, United KingdomHQ checked Sep 5, 2026	11-50	40
	“We’re an award-winning digital market research agency helping clients make fast, confident decisions with high-quality data they can trust.” Source: company website · checked Sep 5, 2026
23	Acumen FieldworkIndirect evidence	Manchester, United KingdomHQ checked Sep 5, 2026	51-200	38
	“At Acumen Fieldwork, we make fieldwork feel less… fieldwork-y.” Source: company website · checked Sep 5, 2026
24	The Insights FamilyIndirect evidence	Manchester, United KingdomHQ checked Sep 5, 2026	51-200	37
	“The Insights Family provides kids, young people and parents with a voice to shape their worlds.” Source: company website · checked Sep 5, 2026
25	QRS Market Research LTDStrong evidence	Hertford, United KingdomHQ checked Sep 5, 2026	11-50	37
	“Welcome to QRS Market Research!” Source: company website · checked Sep 5, 2026

Showing 25 of 580 market research agencies based in the United Kingdom

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 3,405 reachable decision-makers.

Free signup · no credit card

See all 580 companies

Market research agencies based in the United Kingdom at a glance

As of Sep 5, 2026

1-10Median size (employees)

LondonLargest hub · 248 HQs

902Contacts with mobile numbers

Sep 5, 2026Data refreshed

Companies by employee count

1-10

353

11-50

164

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

Verified emails by last verification

0–30

3,204

31–60

171

61–90

90–180

180+

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 market research agencies, 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 “market research agencies”. 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 market research agencies, 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, 3,405 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.

Market research agencies by metro

Market research agencies in London248

Frequently asked

How many market research agencies are there based in the United Kingdom?

RevenueBase identified 580 market research agencies 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?

Ipsos In The UK, headquartered in London, tops this list with the largest team on record.

Which city has the most market research agencies?

London leads with 248 headquartered companies, followed by Manchester (14) and Leeds (10).

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 3,405 verified decision-maker contacts tracked across these 580 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.

Ready to reach these companies? Verified emails and direct dials for all 580 market research agencies based in the United Kingdom. Start with a free account, no credit card.

Get the full list

Related lists

Market research agencies by geography

Browse the directory

Browse: Companies home · All United Kingdom lists · All Market research agencies lists · New lists

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.