Company lists · Data refreshed September 2026

Top 25 Communication consulting firms based in the United Kingdom

Name: Communication consulting firms based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 1,947 companies tracked

RevenueBase identified 1,947 communication consulting firms headquartered in the United Kingdom as of September 2026 and tracks 15,516 professional contacts across them, including 5,809 with verified work emails. London is the largest hub.

This list covers communication consulting firms 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 21, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 RevenueBase Smart Search rating on every row Refreshed Sep 21, 2026 86% judged on-target in blind review

1,947Companies

15,516Contacts tracked

5,809Verified emails

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The 25 largest communication consulting firms based in the United Kingdom

Ranked by team size

Top 25 of 1,947 communication consulting firms based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to communication consulting firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Emperor	Partial evidence	Aldgate, United KingdomHQ checked Sep 21, 2026	201-500	415 contacts →
	Partial evidence “Emperor is one of the UK's leading employee-owned creative communications agencies.” Source: RevenueBase Database · checked Sep 21, 2026
2	Portland	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	201-500	229 contacts →
	Indirect evidence “Portland is a consultancy specialising in public affairs, corporate affairs and geopolitics.” Source: RevenueBase Database · checked Sep 21, 2026
3	Headland	Partial evidence	City Of London, United KingdomHQ checked Sep 21, 2026	51-200	205 contacts →
	Partial evidence “We are a communications consultancy powered by collaboration.” Source: RevenueBase Database · checked Sep 21, 2026
4	Radley Yeldar	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	198 contacts →
	Partial evidence “Radley Yeldar is an award-winning, independent London and Birmingham-based creative consultancy with more than 200 communications specialists.” Source: RevenueBase Database · checked Sep 21, 2026
5	CDR Citigate Dewe Rogerson	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	190 contacts →
	Partial evidence “CDR is a leading global strategic communications consultancy.” Source: RevenueBase Database · checked Sep 21, 2026
6	Hanover Communications	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	201-500	177 contacts →
	Partial evidence “Hanover is an award-winning communications consultancy that advises enterprises, institutions, and individuals on rewiring their strategies for long-term success.” Source: RevenueBase Database · checked Sep 21, 2026
7	Cavendish	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	176 contacts →
	Indirect evidence “Helping organisations build and protect value in complex and contested environments.” Source: RevenueBase Database · checked Sep 21, 2026
8	Milltown Partners	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	174 contacts →
	Partial evidence “Milltown Partners is a global advisory firm working with influential organisations and individuals on the communications and public policy challenges that define their reputations.” Source: RevenueBase Database · checked Sep 21, 2026
9	Lansons Team Farner	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	143 contacts →
	Indirect evidence “Organisations and brands turn to us to shape, protect and transform their reputations.” Source: RevenueBase Database · checked Sep 21, 2026
10	Ceres PR	Indirect evidence	Reading, United KingdomHQ checked Sep 21, 2026	11-50	132 contacts →
	Indirect evidence “Our 360º PR approach ensures consistency of message and brand ethos across all activity – from earned, to owned and paid channels - to help you achieve your business goals.” Source: RevenueBase Database · checked Sep 21, 2026
11	Instinctif Partners	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	201-500	130 contacts →
	Indirect evidence “Instinctif UK has officially rebranded to TEAM LEWIS.” Source: RevenueBase Database · checked Sep 21, 2026
12	Hanbury Strategy	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	125 contacts →
	Indirect evidence “Hanbury is a strategic advisory firm that turns insight into impact.” Source: RevenueBase Database · checked Sep 21, 2026
13	Copper Consultancy	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	114 contacts →
	Partial evidence “At Copper, we combine insight, intelligence and creative communications expertise to deliver measurable impact for our clients.” Source: RevenueBase Database · checked Sep 21, 2026
14	Camargue	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	111 contacts →
	Partial evidence “Camargue is an award-winning, employee-owned communications agency.” Source: RevenueBase Database · checked Sep 21, 2026
15	JBP	Partial evidence	Bristol, United KingdomHQ checked Sep 21, 2026	11-50	101 contacts →
	Partial evidence “We're JBP, an award-winning full-service communications agency with our headquarters in Bristol, and offices in London, Warwick, Manchester and Cardiff.” Source: RevenueBase Database · checked Sep 21, 2026
16	Definition	Indirect evidence	West End, United KingdomHQ checked Sep 21, 2026	51-200	97 contacts →
	Indirect evidence “We’re specialists, not generalists We built our business by bringing together different specialists – strategists, creatives, makers, technologists and more.” Source: RevenueBase Database · checked Sep 21, 2026
17	SOH	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	11-50	96 contacts →
	Partial evidence “We’re service communication experts – using a mix of science, creativity and service know-how to improve how you talk with your customers through all channels and media, from…” Source: RevenueBase Database · checked Sep 21, 2026
18	BLU	Partial evidence	Doynton, United KingdomHQ checked Sep 21, 2026	n/a	92 contacts →
	Partial evidence “Creating inspired brand & communication strategies for business.” Source: RevenueBase Database · checked Sep 21, 2026
19	Connect Group	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	11-50	89 contacts →
	Partial evidence “Connect is a communications agency specialising in public affairs and political strategy, corporate communications and reputation management.” Source: RevenueBase Database · checked Sep 21, 2026
20	Heavenly	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	11-50	85 contacts →
	Indirect evidence “Heavenly is a global, independent creative consultancy, founded in 2003.” Source: RevenueBase Database · checked Sep 21, 2026
21	Design Portfolio	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	82 contacts →
	Partial evidence “Design Portfolio helps forward-thinking companies build trust with their stakeholders through creative storytelling, integrated communications, and sustainability strategies.” Source: RevenueBase Database · checked Sep 21, 2026
22	PLMR	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	78 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 21, 2026
23	Cirkle	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	78 contacts →
	Indirect evidence “At Cirkle, we have 25 years' experience delivering comms.” Source: RevenueBase Database · checked Sep 21, 2026
24	Madano	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	76 contacts →
	Partial evidence “Madano is committed to building a better world through intelligent and creative communications supported by in-depth insights.” Source: RevenueBase Database · checked Sep 21, 2026
25	Camron	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	74 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 21, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: communication consulting firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names communication consulting firms.
Partial evidence: Its own public description names part of communication consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name communication consulting firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 1,947 communication consulting firms based in the United Kingdom

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Communication consulting firms based in the United Kingdom at a glance

As of Sep 21, 2026

37.4%Verified-email coverage

8.0Average contacts per company

1-10Median size (employees)

48.9%Largest-city concentration · London

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

1,538

11-50

330

51-200

201-500

501-1,000

1,001-5,000

10001+

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 1,947 companies.

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 communication consulting firms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search 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 Smart Search, 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 “communication consulting firms”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names communication consulting firms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among communication consulting firms, 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 its RevenueBase Smart Search 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, 5,809 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 21, 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.

Communication consulting firms by metro

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names communication consulting firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many communication consulting firms are there based in the United Kingdom?

RevenueBase identified 1,947 communication consulting firms 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?

Emperor, headquartered in Aldgate, tops this list with the largest team on record.

Which city has the most communication consulting firms?

London leads with 953 headquartered companies, followed by Manchester (31) and Bristol (27).

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 5,809 verified decision-maker contacts tracked across these 1,947 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 21, 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 Smart Search, 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.