Company lists · Data refreshed September 2026

Top 25 Thought leadership agencies based in the United Kingdom

RevenueBase identified 1,024 company matches for thought leadership agencies associated with the United Kingdom as of September 2026 and tracks 7,704 professional contacts across them, including 2,795 with verified work emails. London is the largest hub.

This list covers company matches for thought leadership agencies 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 22, 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 22, 2026 How this list was built
1,024Companies
7,704Contacts tracked
2,795Verified emails
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The 25 largest thought leadership agencies based in the United Kingdom

Ranked by team size
Top 25 of 1,024 company matches for thought leadership agencies based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 22, 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 matchAldgate, United KingdomHQ recorded Sep 22, 2026201-500415 contacts →

Exact match

“Emperor is one of the UK's leading employee-owned creative communications agencies.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
2Exact matchCity Of London, United KingdomHQ recorded Sep 22, 202651-200205 contacts →

Exact match

“We are a communications consultancy powered by collaboration.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
3Exact matchLondon, United KingdomHQ recorded Sep 22, 202651-200198 contacts →

Exact match

“Radley Yeldar is an award-winning, independent London and Birmingham-based creative consultancy with more than 200 communications specialists.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
4Exact matchLondon, United KingdomHQ recorded Sep 22, 2026201-500177 contacts →

Exact match

“Hanover is an award-winning communications consultancy that advises enterprises, institutions, and individuals on rewiring their strategies for long-term success.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
5Exact matchLondon, United KingdomHQ recorded Sep 22, 2026201-500130 contacts →

Exact match

“Instinctif UK has officially rebranded to TEAM LEWIS.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
6Exact matchLondon, United KingdomHQ recorded Sep 22, 202651-200125 contacts →

Exact match

“Hanbury is a strategic advisory firm that turns insight into impact.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
7Exact matchLondon, United KingdomHQ recorded Sep 22, 202651-200112 contacts →

Exact match

“Battenhall is an award-winning communications agency for the social media age.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
8Exact matchLondon, United KingdomHQ recorded Sep 22, 202651-20093 contacts →

Exact match

“Sunday is an independent content marketing agency based in London.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
9Exact matchLondon, United KingdomHQ recorded Sep 22, 202651-20082 contacts →

Exact match

“Design Portfolio helps forward-thinking companies build trust with their stakeholders through creative storytelling, integrated communications, and sustainability strategies.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
10Exact matchLondon, United KingdomHQ recorded Sep 22, 202651-20074 contacts →

Exact match

“A global PR, communications and brand strategy consultancy positioning the world’s leading brands at the forefront of modern culture with offices in London, New York, Los Angeles…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
11Exact matchBirmingham, United KingdomHQ recorded Sep 22, 202651-20073 contacts →

Exact match

“We blend sharp strategy with compelling corporate storytelling to help you show up with clarity, confidence, and purpose.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
12Exact matchLondon, United KingdomHQ recorded Sep 22, 202651-20071 contacts →

Exact match

“We are a strategic communications consultancy helping organisations achieve policy and reputational outcomes.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
13Exact matchGuisborough, United KingdomHQ recorded Sep 22, 202611-5066 contacts →

Exact match

“DTW is a strategic communications and marketing consultancy We specialise in work for membership organisations, regulatory bodies and major infrastructure and energy projects…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
14Exact matchLondon, United KingdomHQ recorded Sep 22, 202611-5054 contacts →

Exact match

“We are the strategic acumen of ‘Gen Plus Group’, a dynamic communications agency where strategy meets storytelling.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
15Exact matchLondon, United KingdomHQ recorded Sep 22, 202611-5052 contacts →

Exact match

“FT Longitude creates real thought leadership, for brands and marketers with big ideas.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
16Exact matchLondon, United KingdomHQ recorded Sep 22, 202611-5049 contacts →

Exact match

“Pagefield is an independent communications consultancy specialising in integrated campaigning, public affairs and corporate and brand communications.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
17Exact matchLondon, United KingdomHQ recorded Sep 22, 202611-5047 contacts →

Exact match

“Whether it’s delivering a global communications campaign or filming local impact, our mission is to craft stories that help clients showcase how they are making the world a better…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
18Exact matchLondon, United KingdomHQ recorded Sep 22, 202651-20047 contacts →

Exact match

“MUSE is a full-service marketing and communications consultancy, with expertise in brand strategy, marketing, communication, design, public relations, digital, publishing and…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
19Exact matchLondon, United KingdomHQ recorded Sep 22, 202611-5044 contacts →

Exact match

“Ballou is a strategic communications partner to innovative companies.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
20Exact matchLondon, United KingdomHQ recorded Sep 22, 202611-5040 contacts →

Exact match

“We help organisations reach their full potential by engaging, informing and inspiring their audiences.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
21Exact matchLondon, United KingdomHQ recorded Sep 22, 202611-5037 contacts →

Exact match

“Apollo is a strategic communications agency that helps elite companies, organisations, and individuals engage with their target audience.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
22Exact matchLondon, United KingdomHQ recorded Sep 22, 202611-5036 contacts →

Exact match

“We know that it is no longer enough for people just to know your brand.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
23Exact matchLondon, United KingdomHQ recorded Sep 22, 202611-5035 contacts →

Exact match

“At Fox Communications, our best practice merges solid thinking with an adaptability that reflects an ever-changing digital landscape.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
24Exact matchLondon, United KingdomHQ recorded Sep 22, 202611-5035 contacts →

Exact match

“Impact Communications For over thirty years, we've been helping our clients across the globe shape strategies, enhance reputations and inspire changing behaviours.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
25Exact matchLondon, United KingdomHQ recorded Sep 22, 202611-5034 contacts →

Exact match

“We believe that developing the right dialogue helps our clients change mind-sets and create new ways of engagement, driving positive business results.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase

Showing 25 of 1,024 thought leadership agencies based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 2,795 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Thought leadership agencies based in the United Kingdom at a glance

As of Sep 22, 2026
36.3%Verified-email coverage
7.5Average contacts per company
1-10Median size (employees)
49.7%Largest-city concentration · London
Sep 22, 2026Page data refreshed

Companies by employee count

1-10
851
11-50
145
51-200
17
201-500
6
1,001-5,000
2

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 1,024 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 “thought leadership agencies” 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 2,795 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 22, 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 “thought leadership agencies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many thought leadership agencies are there based in the United Kingdom?

RevenueBase identified 1,024 company matches for thought leadership agencies 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?

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

Which city has the most thought leadership agencies?

London leads with 509 company records, followed by Manchester (28) and Leeds (16).

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 2,795 professional contacts with verified work emails tracked across these 1,024 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 22, 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 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.