Company lists · Data refreshed September 2026

Top 25 Public relations firms based in the United Kingdom

Name: Public relations 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 5, 2026 1,276 companies tracked

RevenueBase identified 1,276 public relations firms headquartered in the United Kingdom as of September 2026 and tracks 8,393 professional contacts across them, including 3,115 with verified work emails and 952 with mobile numbers. London is the largest hub.

This list covers public relations 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, how directly it supports the match, and when it was last checked. Data refreshed September 5, 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 HQ checked on every row Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review

1,276Companies

8,393Contacts tracked

3,115Verified emails

952Mobile numbers

Explore all 1,276 companies → Free signup · no credit card · 500 free credits

The 25 largest public relations firms based in the United Kingdom

Ranked by team size

Top 25 of 1,276 public relations firms based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names public relations firms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	PurpleIndirect evidence	London, United KingdomHQ checked Sep 5, 2026	51-200	449
	“Purple is independent in philosophy, attitude and operation –offering a boutique in-house approach, the strategic requirements of each client are individually tailored from the…” Source: company website · checked Sep 5, 2026
2	PremierIndirect evidence	London, United KingdomHQ checked Sep 5, 2026	51-200	272
	“Creative communications for entertainment, arts and culture.” Source: company website · checked Sep 5, 2026
3	TangerineIndirect evidence	Manchester, United KingdomHQ checked Sep 5, 2026	51-200	130
	“Tangerine is a fiercely independent PR and Social agency.” Source: company website · checked Sep 5, 2026
4	HalpernIndirect evidence	London, United KingdomHQ checked Sep 5, 2026	11-50	83
	“Halpern is an agency powerhouse.” Source: company website · checked Sep 5, 2026
5	PLMRPartial evidence	London, United KingdomHQ checked Sep 5, 2026	51-200	78
	“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: company website · checked Sep 5, 2026
6	Different PRStrong evidence	Harrogate, United KingdomHQ checked Sep 5, 2026	n/a	71
	“We are a Yorkshire PR company that specialises in getting our clients and their products in the news via public relations and media relations campaigns, stunts and one off news…” Source: company website · checked Sep 5, 2026
7	Ketchum UKIndirect evidence	London, United KingdomHQ checked Sep 5, 2026	51-200	66
	“We are now Golin Ketchum London.” Source: company website · checked Sep 5, 2026
8	HATCHIndirect evidence	Leeds, United KingdomHQ checked Sep 5, 2026	11-50	57
	“Hatch specialises in consumer and business to business PR, social, sponsorship maximisation and event delivery, and prides itself on results, not just in column inches and media…” Source: company website · checked Sep 5, 2026
9	Brazen PRIndirect evidence	Manchester, United KingdomHQ checked Sep 5, 2026	11-50	46
	“Welcome to Brazen - the most awarded PR agency outside London and PRWeek’s Best Agency Outside London.” Source: company website · checked Sep 5, 2026
10	RoosterIndirect evidence	London, United KingdomHQ checked Sep 5, 2026	11-50	43
	“Rooster is an award-winning independent PR & communications agency with a focus on innovative storytelling, performance and accountability.” Source: company website · checked Sep 5, 2026
11	Speed CommunicationsIndirect evidence	Bristol, United KingdomHQ checked Sep 5, 2026	51-200	42
	“PR has never been more valuable.” Source: company website · checked Sep 5, 2026
12	Whiteoaks InternationalIndirect evidence	Hook, United KingdomHQ checked Sep 5, 2026	11-50	41
	“On a mission to be the UK’s most accountable PR agency, Whiteoaks embrace a deliberately different approach.” Source: company website · checked Sep 5, 2026
13	Storm CommunicationsIndirect evidence	London, United KingdomHQ checked Sep 5, 2026	11-50	41
	“Drop us a line at hello@stormcom.co.uk to sign up to our Consumer Brands or Corporate newsletter** Storm is a hardworking, down-to-earth, friendly and results-driven agency.” Source: company website · checked Sep 5, 2026
14	GreenbrookIndirect evidence	London, United KingdomHQ checked Sep 5, 2026	11-50	40
	“Greenbrook is an independent strategic communications firm that advises clients on all aspects of their business through the lens of reputation.” Source: company website · checked Sep 5, 2026
15	Media HouseIndirect evidence	Angel, United KingdomHQ checked Sep 5, 2026	n/a	38
	“Award-Winning Communications Specialists PR \| Marketing \| Events \| Digital \| Talent hello@mediahouseglobal.com” Source: company website · checked Sep 5, 2026
16	DawbellIndirect evidence	London, United KingdomHQ checked Sep 5, 2026	11-50	37
	“DawBell sits at the centre of the UK entertainment industry, providing integrated communications services for some of the biggest music acts, elite athletes, top-tier talent and…” Source: company website · checked Sep 5, 2026
17	Prohibition PRStrong evidence	Leeds, United KingdomHQ checked Sep 5, 2026	11-50	37
	“Prohibition PR is a specialist PR agency which advises businesses of all sizes on how to use public relations and social media effectively.” Source: company website · checked Sep 5, 2026
18	FOX CommunicationsIndirect evidence	London, United KingdomHQ checked Sep 5, 2026	11-50	35
	“At Fox Communications, our best practice merges solid thinking with an adaptability that reflects an ever-changing digital landscape.” Source: company website · checked Sep 5, 2026
19	RostrumIndirect evidence	London, United KingdomHQ checked Sep 5, 2026	11-50	34
	“Rostrum is a leading London PR agency.” Source: company website · checked Sep 5, 2026
20	LOTUSIndirect evidence	London, United KingdomHQ checked Sep 5, 2026	11-50	33
	“Part of W Communications we drive client business growth through bright and bold campaigns.” Source: company website · checked Sep 5, 2026
21	Lucien Pagès & AiprIndirect evidence	London, United KingdomHQ checked Sep 5, 2026	11-50	33
	“Global PR and Communications Agency - London” Source: company website · checked Sep 5, 2026
22	The PR NetworkIndirect evidence	London, United KingdomHQ checked Sep 5, 2026	n/a	33
	“The PR Network (PRN) was founded in 2005 with a vision to create the world’s first remote-first PR agency.” Source: company website · checked Sep 5, 2026
23	L52 CommunicationsPartial evidence	London, United KingdomHQ checked Sep 5, 2026	11-50	33
	“L52 is a next-generation communications agency headquartered in London, with offices in New York and Mumbai, delivering a fresh, global approach to media relations.” Source: company website · checked Sep 5, 2026
24	The Communication Group PLCStrong evidence	London, United KingdomHQ checked Sep 5, 2026	11-50	33
	“About The Communication Group plc The Communication Group plc is the longest established independent public relations consultancy in the UK.” Source: company website · checked Sep 5, 2026
25	CANOEIndirect evidence	London, United KingdomHQ checked Sep 5, 2026	11-50	32
	“Hey there.” Source: company website · checked Sep 5, 2026

Showing 25 of 1,276 public relations firms based in the United Kingdom

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Public relations firms based in the United Kingdom at a glance

As of Sep 5, 2026

1-10Median size (employees)

LondonLargest hub · 515 HQs

952Contacts with mobile numbers

Sep 5, 2026Data refreshed

Companies by employee count

1-10

1,026

11-50

216

51-200

201-500

501-1,000

1,001-5,000

Verified emails by last verification

0–30

2,909

31–60

193

61–90

90–180

180+

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 public relations firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 “public relations firms”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among public relations 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 an evidence 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, 3,115 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 5, 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.

Public relations firms by metro

Public relations firms in London515
Public relations firms in Manchester38

Frequently asked

How many public relations firms are there based in the United Kingdom?

RevenueBase identified 1,276 public relations 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?

Purple, headquartered in London, tops this list with the largest team on record.

Which city has the most public relations firms?

London leads with 515 headquartered companies, followed by Manchester (38) and Leeds (17).

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 3,115 verified decision-maker contacts tracked across these 1,276 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 5, 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.