Company lists · Data refreshed September 2026
Top 25 League public relations firms based in the United Kingdom
RevenueBase identified 465 league public relations firms headquartered in the United Kingdom as of September 2026 and tracks 2,795 professional contacts across them, including 964 with verified work emails. London is the largest hub.
This list covers league 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 28, 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.
The 25 largest league public relations firms based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 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 28, 2026Thanks. The Data Team will review it. | |||||
| 2 | 71 contacts → | ||||
Strong evidence “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: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 3 | 56 contacts → | ||||
Indirect evidence “Square in the Air is an award-winning communications agency for the sports, betting & gaming and financial industries, providing a range of PR, marketing and content services to…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 4 | 55 contacts → | ||||
Indirect evidence “For more than four decades, we have helped our clients build, protect, and enhance their reputations, advance their business objectives, and shape the conversations that matter…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 5 | 54 contacts → | ||||
Indirect evidence “We are the strategic acumen of ‘Gen Plus Group’, a dynamic communications agency where strategy meets storytelling.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 6 | 43 contacts → | ||||
Indirect evidence “We’re a leading integrated sports & entertainment marketing agency, delivering specialist expertise in Sponsorship, PR, Digital and Events.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 7 | 42 contacts → | ||||
Indirect evidence “PR has never been more valuable.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 8 | 41 contacts → | ||||
Indirect evidence “We’re Mercieca.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 9 | 41 contacts → | ||||
Indirect evidence “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: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 10 | 38 contacts → | ||||
Indirect evidence “Award-Winning Communications Specialists PR | Marketing | Events | Digital | Talent hello@mediahouseglobal.com” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 11 | 37 contacts → | ||||
Indirect evidence “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: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 12 | 35 contacts → | ||||
Indirect evidence “At Fox Communications, our best practice merges solid thinking with an adaptability that reflects an ever-changing digital landscape.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 13 | 34 contacts → | ||||
Indirect evidence “For more than three decades the team at Cardew has worked with major companies and business leaders to communicate effectively with the media, the international financial…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 14 | 26 contacts → | ||||
Indirect evidence “We began life in 1994, with the ambition to create a communications business that valued imagination, quality and people.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 15 | 25 contacts → | ||||
Indirect evidence “Perhaps the most distinctive thing ‘about us’ as a PR agency, is that we are never ‘about us’.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 16 | 25 contacts → | ||||
Indirect evidence “Strategic communications experts dedicated to enhancing reputation and building trust to fulfil ambitions.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 17 | 25 contacts → | ||||
Indirect evidence “Little Red Rooster | B Corp™ is a PR and digital communications agency (founded 2011 by Victoria Ruffy) specialising in Audio, Design, Fashion, Home, Music and Tech.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 18 | 22 contacts → | ||||
Strong evidence “Cardiff's premier marketing agency specialising in Marketing, Public Relations, Media and Communications.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 19 | 22 contacts → | ||||
Indirect evidence “We are the communications agency that speaks the language of sport.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 20 | 21 contacts → | ||||
Indirect evidence “3x1 Group is one of the UK's top independent communications consultancies.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 21 | 21 contacts → | ||||
Indirect evidence “ADPR provides results-driven, exciting and dynamic PR campaigns for its clients.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 22 | 20 contacts → | ||||
Strong evidence “We are The Outside Organisation, the UK’s finest Public Relations agency.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 23 | 19 contacts → | ||||
Indirect evidence “We are a team of experts who are passionate about the brands and organisations we work with.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 24 | 19 contacts → | ||||
Indirect evidence “Red Setter - PR for the world's best creative agencies.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 25 | 18 contacts → | ||||
Strong evidence “As a leading public relations agency specialising in a number of key sectors, Flame PR has an established track record of delivering results through an impressive list of contacts…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
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: league public relations 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 league public relations firms.
- Partial evidence
- Its own public description names part of league public relations firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name league public relations 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 465 league public relations firms based in the United Kingdom
See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 964 reachable decision-makers.
Free signup · no credit card
League public relations firms based in the United Kingdom at a glance
As of Sep 28, 2026Companies by employee count
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 465 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 league public relations 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 “league public relations 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 league public relations 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 league 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 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, 964 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 28, 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.
League public relations 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 league public relations 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 league public relations firms are there based in the United Kingdom?
RevenueBase identified 465 league 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?
PLMR, headquartered in London, tops this list with the largest team on record.
Which city has the most league public relations firms?
London leads with 182 headquartered companies, followed by Manchester (11) and Glasgow (7).
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 964 verified decision-maker contacts tracked across these 465 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 28, 2026.
Ready to reach these companies? Verified emails and direct dials for all 465 league public relations firms based in the United Kingdom. Start with a free account, no credit card.
Download this list →Related lists
League public relations firms by geography
- League public relations firms based in Sydney, Australia
- League public relations firms based in Sao Paulo, Brazil
- League public relations firms based in Toronto, Canada
- League public relations firms based in Paris, France
- League public relations firms based in Berlin, Germany
- League public relations firms based in Hamburg, Germany
- League public relations firms based in Mumbai, India
- League public relations firms based in New Delhi, India
- League public relations firms based in Tel Aviv, Israel
- League public relations firms based in Warszawa, Poland
- League public relations firms based in Singapore, Singapore
- League public relations firms based in Johannesburg, South Africa
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- League public relations firms based in Sydney, Australia
- League public relations firms based in Sao Paulo, Brazil
- League public relations firms based in Toronto, Canada
- League public relations firms based in Paris, France
- League public relations firms based in Berlin, Germany
- League public relations firms based in Hamburg, Germany