Company lists · Data refreshed September 2026

Top 25 Research and advisory firms based in the United Kingdom

RevenueBase identified 2,667 company matches for research and advisory firms associated with the United Kingdom as of September 2026 and tracks 43,031 professional contacts across them, including 15,746 with verified work emails. London is the largest hub.

This list covers company matches for research and advisory firms associated with the 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 21, 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 21, 2026 How this list was built
2,667Companies
43,031Contacts tracked
15,746Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest research and advisory firms based in the United Kingdom

Ranked by team size
Top 25 of 2,667 company matches for research and advisory firms based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 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 21, 20265,001-10,0005,009 contacts →

Exact match

“Acuity Knowledge Partners (Acuity) is a leading provider of bespoke research, analytics and technology solutions to the financial services sector, including asset managers…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
2Exact matchLondon, United KingdomHQ recorded Sep 21, 20261,001-5,0002,422 contacts →

Exact match

“Third Bridge is a leading global investment research firm established in 2007.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
3Exact matchLondon, United KingdomHQ recorded Sep 21, 20261,001-5,0001,563 contacts →

Exact match

“Brunswick is a global advisory firm.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
4Exact matchLondon, United KingdomHQ recorded Sep 21, 20261,001-5,0001,475 contacts →

Exact match

“At Mintel, we empower businesses to navigate the future with confidence.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
5Exact matchLondon, United KingdomHQ recorded Sep 21, 2026501-1,000731 contacts →

Exact match

“FRP is a leading national business advisory firm.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
6Exact matchLondon, United KingdomHQ recorded Sep 21, 2026501-1,000702 contacts →

Exact match

“We provide high performing intelligence that answers critical business questions for leading companies around the world.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
7Exact matchLondon, United KingdomHQ recorded Sep 21, 2026501-1,000651 contacts →

Exact match

“Infiniti Research is a leading provider of market intelligence and customer intelligence solutions with 20+ years’ experience spanning across 20+ industries.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
8Exact matchOxford, United KingdomHQ recorded Sep 21, 2026501-1,000611 contacts →

Exact match

“At Oxford Economics, we equip our clients with the data and understanding they need to navigate an uncertain, fast-changing and challenging global economic and business…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
9Exact matchLondon, United KingdomHQ recorded Sep 21, 202651-200528 contacts →

Exact match

“Strategy Insights is a specialist business and economic development consultancy.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
10Exact matchLondon, United KingdomHQ recorded Sep 21, 2026201-500527 contacts →

Exact match

“proSapient is a cutting-edge expert network and primary research platform that enables professionals to share insights with clients through short calls, online surveys and…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
11Exact matchLondon, United KingdomHQ recorded Sep 21, 2026201-500477 contacts →

Exact match

“We help companies with their biggest challenges – market strategies, regulatory reviews, competition inquiries.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
12Exact matchLondon, United KingdomHQ recorded Sep 21, 2026501-1,000464 contacts →

Exact match

“Savanta is a fast-growing data, market research and advisory company.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
13Exact matchLondon, United KingdomHQ recorded Sep 21, 2026201-500459 contacts →

Exact match

“Analysys Mason is the leading specialist consultancy, creating lasting value in technology-intensive industries, including telecoms, digital infrastructure, software, IT services…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
14Exact matchLondon, United KingdomHQ recorded Sep 21, 2026501-1,000362 contacts →

Exact match

“Omdia, part of Informa TechTarget, Inc.(Nasdaq: TTGT), is a technology research and advisory group.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15Exact matchLondon, United KingdomHQ recorded Sep 21, 2026201-500348 contacts →

Exact match

“We work with our clients to help them navigate the increasingly complex global environment, to analyse political and economic developments, forecast economic trends, and…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
16Exact matchBrighton, United KingdomHQ recorded Sep 21, 2026201-500309 contacts →

Exact match

“Technopolis Group is an international research and consulting organisation working for the public sector.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
17Exact matchGlobal, United KingdomHQ recorded Sep 21, 2026201-500289 contacts →

Exact match

“Sibylline is the world’s leading private consultancy for geopolitical risk, intelligence, and strategic insight, dedicated to helping leaders and organisations anticipate change…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
18Exact matchLondon, United KingdomHQ recorded Sep 21, 202651-200233 contacts →

Exact match

“CT Group is a global consultancy that uniquely combines research, intelligence, campaigns and advisory services, to deliver the results our clients need.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
19Exact matchLondon, United KingdomHQ recorded Sep 21, 2026201-500229 contacts →

Exact match

“Portland is a consultancy specialising in public affairs, corporate affairs and geopolitics.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
20Exact matchLondon, United KingdomHQ recorded Sep 21, 202651-200214 contacts →

Exact match

“Flint specialises in advising businesses and investors on how to navigate and surmount the policy, political, regulatory and competition challenges they face in European and…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
21Exact matchLondon, United KingdomHQ recorded Sep 21, 202651-200211 contacts →

Exact match

“Cavendish is a UK champion for ambitious growth and investment companies.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
22Exact matchLondon, United KingdomHQ recorded Sep 21, 202651-200211 contacts →

Exact match

“RFI Global is the only global data and insights company focusing exclusively on financial services.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
23Exact matchLondon, United KingdomHQ recorded Sep 21, 202651-200185 contacts →

Exact match

“True North Partners LLP is an independent consulting firm based in London, Johannesburg, Frankfurt, Amsterdam and Madrid.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
24Exact matchLondon, United KingdomHQ recorded Sep 21, 202651-200178 contacts →

Exact match

“The world’s most experienced B2B market research company.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
25Exact matchLondon, United KingdomHQ recorded Sep 21, 202651-200159 contacts →

Exact match

“We are a global advisory company that helps our clients enable their opportunities and manage key risks.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase

Showing 25 of 2,667 research and advisory firms based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 15,746 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Research and advisory firms based in the United Kingdom at a glance

As of Sep 21, 2026
36.6%Verified-email coverage
16.1Average contacts per company
1-10Median size (employees)
53.5%Largest-city concentration · London
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
1,919
11-50
520
51-200
139
201-500
31
501-1,000
9
1,001-5,000
11
5,001-10,000
4
10001+
4

Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 2,667 companies.

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 the United Kingdom whose business descriptions match “research and advisory firms” 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 15,746 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 21, 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 “research and advisory firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many research and advisory firms are there based in the United Kingdom?

RevenueBase identified 2,667 company matches for research and advisory firms associated with the 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?

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

Which city has the most research and advisory firms?

London leads with 1426 company records, followed by Manchester (32) and Edinburgh (29).

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 15,746 professional contacts with verified work emails tracked across these 2,667 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 21, 2026.

Ready to reach these companies? Verified emails and direct dials for all 2,667 research and advisory firms based in the United Kingdom. Start with a free account, no credit card.

Download this list →

Related 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.