Company lists · Data refreshed September 2026

Top 25 B2B thought leadership agencies based in the United Kingdom

RevenueBase identified 786 company matches for B2B thought leadership agencies associated with the United Kingdom as of September 2026 and tracks 9,640 professional contacts across them, including 3,210 with verified work emails and 772 with mobile numbers. London is the largest hub.

This list covers company matches for B2B 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 8, 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 8, 2026 How this list was built
786Companies
9,640Contacts tracked
3,210Verified emails
772Mobile numbers
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The 25 largest B2B thought leadership agencies based in the United Kingdom

Ranked by team size
Top 25 of 786 company matches for B2B thought leadership agencies based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 8, 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 8, 202651-200370 contacts →

Exact match

“In a world where everyone’s shouting the same thing, whisper something truly distinctive in all the right ears.”

Recorded in the RevenueBase company graph · Sep 8, 2026 · View company records in RevenueBase
2Exact matchEast Sussex, United KingdomHQ recorded Sep 8, 2026n/a367 contacts →

Exact match

“HSL is a hard-working and creative PR and marketing communications agency.”

Recorded in the RevenueBase company graph · Sep 8, 2026 · View company records in RevenueBase
3Exact matchLondon, United KingdomHQ recorded Sep 8, 2026201-500289 contacts →

Exact match

“We deliver full-service B2B marketing solutions for world-class customer experiences – with an eye always toward the future.”

Recorded in the RevenueBase company graph · Sep 8, 2026 · View company records in RevenueBase
4Exact matchLondon, United KingdomHQ recorded Sep 8, 202651-200149 contacts →

Exact match

“There's a formula to becoming famous.”

Recorded in the RevenueBase company graph · Sep 8, 2026 · View company records in RevenueBase
5Exact matchLondon, United KingdomHQ recorded Sep 8, 202651-200139 contacts →

Exact match

“Publicis Pro is the specialist B2B marketing agency within Publicis Groupe, the world's number one marketing holding group.”

Recorded in the RevenueBase company graph · Sep 8, 2026 · View company records in RevenueBase
6Exact matchFrome, United KingdomHQ recorded Sep 8, 202651-200138 contacts →

Exact match

“The B2B marketing agency built for complex tech sales.”

Recorded in the RevenueBase company graph · Sep 8, 2026 · View company records in RevenueBase
7Exact matchBristol, United KingdomHQ recorded Sep 8, 202611-50120 contacts →

Exact match

“Modern is an award-winning B2B Marketing Consultancy.”

Recorded in the RevenueBase company graph · Sep 8, 2026 · View company records in RevenueBase
8Exact matchLondon, United KingdomHQ recorded Sep 8, 202651-200111 contacts →

Exact match

“We’re MOI Global – the Not-So-B2B agency.”

Recorded in the RevenueBase company graph · Sep 8, 2026 · View company records in RevenueBase
9Exact matchLondon, United KingdomHQ recorded Sep 8, 202651-20095 contacts →

Exact match

“Fox Agency is an integrated agency for global B2B tech brands on a mission: To grow, expand, transform, accelerate, go-to-market, get investment.”

Recorded in the RevenueBase company graph · Sep 8, 2026 · View company records in RevenueBase
10Exact matchLondon, United KingdomHQ recorded Sep 8, 202651-20093 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 8, 2026 · View company records in RevenueBase
11Exact matchLondon, United KingdomHQ recorded Sep 8, 202651-20093 contacts →

Exact match

“We’re Ledger Bennett.”

Recorded in the RevenueBase company graph · Sep 8, 2026 · View company records in RevenueBase
12Exact matchLondon | Oxford, United KingdomHQ recorded Sep 8, 202651-20093 contacts →

Exact match

“For B2B brands that want to go further, faster.”

Recorded in the RevenueBase company graph · Sep 8, 2026 · View company records in RevenueBase
13Exact matchMarlow, United KingdomHQ recorded Sep 8, 2026201-50092 contacts →

Exact match

“Welcome!”

Recorded in the RevenueBase company graph · Sep 8, 2026 · View company records in RevenueBase
14Exact matchBristol, United KingdomHQ recorded Sep 8, 202651-20092 contacts →

Exact match

“From tackling your marketing painpoints to delivering global brand strategies, Proctor + Stevenson is the B2B marketing specialist that says YES to your commercial challenges.”

Recorded in the RevenueBase company graph · Sep 8, 2026 · View company records in RevenueBase
15Exact matchLondon, United KingdomHQ recorded Sep 8, 2026201-50088 contacts →

Exact match

“The B2B Customer Acquisition Specialists Internal Results specialize in generating leads, promoting content, and driving brand awareness for B2B organizations worldwide through…”

Recorded in the RevenueBase company graph · Sep 8, 2026 · View company records in RevenueBase
16Exact matchLondon, United KingdomHQ recorded Sep 8, 20261,001-5,00086 contacts →

Exact match

“THIS IS B2B WITHOUT BORDERS THIS IS BBN BBN breaks boundaries.”

Recorded in the RevenueBase company graph · Sep 8, 2026 · View company records in RevenueBase
17Exact matchLondon, United KingdomHQ recorded Sep 8, 202651-20085 contacts →

Exact match

“Publitek is now part of Pretzl.”

Recorded in the RevenueBase company graph · Sep 8, 2026 · View company records in RevenueBase
18Exact matchAmpthill, United KingdomHQ recorded Sep 8, 202651-20073 contacts →

Exact match

“B2B Marketing Agency of the Year 2025 A Top 10 UK B2B Agency, 2025/2026 Expertise is everything.”

Recorded in the RevenueBase company graph · Sep 8, 2026 · View company records in RevenueBase
19Exact matchLondon, United KingdomHQ recorded Sep 8, 202651-20071 contacts →

Exact match

“Propeller Group is a global B2B agency with an integrated approach to PR, content, and growth marketing.”

Recorded in the RevenueBase company graph · Sep 8, 2026 · View company records in RevenueBase
20Exact matchLondon, United KingdomHQ recorded Sep 8, 202611-5070 contacts →

Exact match

“We get B2B brands noticed in a world that isn’t looking”

Recorded in the RevenueBase company graph · Sep 8, 2026 · View company records in RevenueBase
21Exact matchChester, United KingdomHQ recorded Sep 8, 202651-20067 contacts →

Exact match

“ArmstrongB2B® is a B2B marketing agency for industrial and manufacturing brands, with offices in the UK and USA.”

Recorded in the RevenueBase company graph · Sep 8, 2026 · View company records in RevenueBase
22Exact matchLondon, United KingdomHQ recorded Sep 8, 202651-20067 contacts →

Exact match

“Today, B2B brands battle for attention in the same crowded space as everything else.”

Recorded in the RevenueBase company graph · Sep 8, 2026 · View company records in RevenueBase
23Exact matchLondon, United KingdomHQ recorded Sep 8, 202651-20067 contacts →

Exact match

“CCGroup is part of The Hoffman Agency, serving as its specialist UK B2B technology communications consultancy.”

Recorded in the RevenueBase company graph · Sep 8, 2026 · View company records in RevenueBase
24Exact matchLondon, United KingdomHQ recorded Sep 8, 202651-20066 contacts →

Exact match

“Creative Media is a global marketing agency specializing in B2B lead generation.”

Recorded in the RevenueBase company graph · Sep 8, 2026 · View company records in RevenueBase
25Exact matchNottingham, United KingdomHQ recorded Sep 8, 202651-20066 contacts →

Exact match

“We’re the B2B marketing agency helping brands capture attention, build trust and be chosen before the search begins.”

Recorded in the RevenueBase company graph · Sep 8, 2026 · View company records in RevenueBase

Showing 25 of 786 B2B thought leadership agencies based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 3,210 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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B2B thought leadership agencies based in the United Kingdom at a glance

As of Sep 8, 2026
33.3%Verified-email coverage
8.0%Mobile-number coverage
12.3Average contacts per company
1-10Median size (employees)
39.3%Largest-city concentration · London
Sep 8, 2026Page data refreshed

Companies by employee count

1-10
512
11-50
216
51-200
49
201-500
6
501-1,000
1
1,001-5,000
1

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 11.0d

Company record updated

Median 71.0d

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 “B2B 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 3,210 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 8, 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 “B2B thought leadership agencies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many B2B thought leadership agencies are there based in the United Kingdom?

RevenueBase identified 786 company matches for B2B 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?

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

Which city has the most B2B thought leadership agencies?

London leads with 309 company records, followed by Manchester (25) and Edinburgh (15).

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 3,210 professional contacts with verified work emails tracked across these 786 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 8, 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.