Company lists · Data refreshed September 2026

Top 25 Strategic communications consultancies based in London, United Kingdom

RevenueBase identified 1,111 company matches for strategic communications consultancies associated with London, United Kingdom as of September 2026 and tracks 13,510 professional contacts across them, including 5,972 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers company matches for strategic communications consultancies associated with London, 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 14, 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 14, 2026 How this list was built
1,111Companies
13,510Contacts tracked
5,972Verified emails
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The 25 largest strategic communications consultancies based in London, United Kingdom

Ranked by team size
Top 25 of 1,111 company matches for strategic communications consultancies based in London, United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 14, 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 14, 2026201-500292 contacts →

Exact match

“Four is one of the leading independent integrated communications agencies in the UK and the Middle East.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
2Exact matchLondon, United KingdomHQ recorded Sep 14, 2026201-500272 contacts →

Exact match

“M&C Saatchi World Services is an issues-focused communications agency.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
3Exact matchLondon, United KingdomHQ recorded Sep 14, 2026201-500229 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
4Exact matchLondon, United KingdomHQ recorded Sep 14, 202651-200224 contacts →

Exact match

“We’re an award-winning, founder-led, communications agency based in London, Minneapolis, New York and San Francisco with an extensive global capability.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
5Exact matchLondon, United KingdomHQ recorded Sep 14, 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 14, 2026 · View company records in RevenueBase
6Exact matchLondon, United KingdomHQ recorded Sep 14, 202651-200190 contacts →

Exact match

“CDR is a leading global strategic communications consultancy.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
7Exact matchLondon, United KingdomHQ recorded Sep 14, 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 14, 2026 · View company records in RevenueBase
8Exact matchLondon, United KingdomHQ recorded Sep 14, 202651-200176 contacts →

Exact match

“Helping organisations build and protect value in complex and contested environments.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
9Exact matchLondon, United KingdomHQ recorded Sep 14, 202651-200174 contacts →

Exact match

“Milltown Partners is a global advisory firm working with influential organisations and individuals on the communications and public policy challenges that define their reputations.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
10Exact matchLondon, United KingdomHQ recorded Sep 14, 2026201-500170 contacts →

Exact match

“At Havas People we shape meaningful brands for the changing worlds of work and study.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
11Exact matchLondon, United KingdomHQ recorded Sep 14, 202651-200143 contacts →

Exact match

“Organisations and brands turn to us to shape, protect and transform their reputations.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
12Exact matchLondon, United KingdomHQ recorded Sep 14, 20261,001-5,000142 contacts →

Exact match

“Strategic corporate affairs in the UK and around the globe.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
13Exact matchLondon, United KingdomHQ recorded Sep 14, 202651-200131 contacts →

Exact match

“Cognito is the global communications agency for finance, technology and the climate transition.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
14Exact matchLondon, United KingdomHQ recorded Sep 14, 2026201-500130 contacts →

Exact match

“Instinctif UK has officially rebranded to TEAM LEWIS.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
15Exact matchLondon, United KingdomHQ recorded Sep 14, 202651-200125 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
16Exact matchLondon, United KingdomHQ recorded Sep 14, 202651-200121 contacts →

Exact match

“At Red Consultancy, we help brands take on tomorrow – with clarity, creativity, and the confidence to lead.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
17Exact matchLondon, United KingdomHQ recorded Sep 14, 202651-200114 contacts →

Exact match

“At Copper, we combine insight, intelligence and creative communications expertise to deliver measurable impact for our clients.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
18Exact matchLondon, United KingdomHQ recorded Sep 14, 202651-200112 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
19Exact matchLondon, United KingdomHQ recorded Sep 14, 202651-200111 contacts →

Exact match

“Camargue is an award-winning, employee-owned communications agency.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
20Exact matchLondon, United KingdomHQ recorded Sep 14, 202651-20092 contacts →

Exact match

“PHA is an award-winning earned-first integrated communications agency.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
21Exact matchLondon, United KingdomHQ recorded Sep 14, 202611-5089 contacts →

Exact match

“Connect is a communications agency specialising in public affairs and political strategy, corporate communications and reputation management.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
22Exact matchLondon, United KingdomHQ recorded Sep 14, 202611-5085 contacts →

Exact match

“Heavenly is a global, independent creative consultancy, founded in 2003.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
23Exact matchLondon, United KingdomHQ recorded Sep 14, 202651-20083 contacts →

Exact match

“For nearly three decades, Panterra has acted as a strategic adviser to governments, corporations, and individuals.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
24Exact matchLondon, United KingdomHQ recorded Sep 14, 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 14, 2026 · View company records in RevenueBase
25Exact matchLondon, United KingdomHQ recorded Sep 14, 202651-20078 contacts →

Exact match

“PLMR delivers Communications with Impact Lobbying and Public Affairs We draw on the experience of former MPs, candidates and advisers, local authority councillors and public…”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase

Showing 25 of 1,111 strategic communications consultancies based in London, United Kingdom

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Strategic communications consultancies based in London, United Kingdom at a glance

As of Sep 14, 2026
44.2%Verified-email coverage
12.2Average contacts per company
1-10Median size (employees)
Sep 14, 2026Page data refreshed

Companies by employee count

1-10
742
11-50
294
51-200
55
201-500
10
501-1,000
3
1,001-5,000
2

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 1,111 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 London, United Kingdom whose business descriptions match “strategic communications consultancies” 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 5,972 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 14, 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 “strategic communications consultancies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many strategic communications consultancies are there based in London, United Kingdom?

RevenueBase identified 1,111 company matches for strategic communications consultancies associated with London, 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?

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

Which city in the United Kingdom has the most strategic communications consultancies?

London leads the United Kingdom with 1,111 company records, followed by Manchester (45) and Bristol (32).

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 5,972 professional contacts with verified work emails tracked across these 1,111 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 14, 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.