Company lists · Data refreshed September 2026
Top 25 Public relations and media relations firms based in London, United Kingdom
RevenueBase identified 462 public relations and media relations firms headquartered in London, United Kingdom as of September 2026 and tracks 4,048 professional contacts across them, including 1,202 with verified work emails. Across the United Kingdom, London is the largest hub for this category.
This list covers public relations and media relations firms headquartered in London, 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 29, 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 public relations and media relations firms based in London, United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 272 contacts → | ||||
Indirect evidence “Creative communications for entertainment, arts and culture.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 2 | 83 contacts → | ||||
Indirect evidence “Halpern is an agency powerhouse.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 3 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 4 | 66 contacts → | ||||
Indirect evidence “We are now Golin Ketchum London.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 5 | 43 contacts → | ||||
Indirect evidence “Rooster is an award-winning independent PR & communications agency with a focus on innovative storytelling, performance and accountability.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 6 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 7 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 8 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 9 | 34 contacts → | ||||
Indirect evidence “Rostrum is a leading London PR agency.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 10 | 34 contacts → | ||||
Partial 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 29, 2026Thanks. The Data Team will review it. | |||||
| 11 | 33 contacts → | ||||
Indirect evidence “Part of W Communications we drive client business growth through bright and bold campaigns.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 12 | 33 contacts → | ||||
Indirect evidence “Global PR and Communications Agency - London” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 13 | 33 contacts → | ||||
Indirect evidence “The PR Network (PRN) was founded in 2005 with a vision to create the world’s first remote-first PR agency.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 14 | 33 contacts → | ||||
Strong evidence “About The Communication Group plc The Communication Group plc is the longest established independent public relations consultancy in the UK.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 15 | 31 contacts → | ||||
Indirect evidence “At Spark, we’ve spent the last 25 years helping ambitious tech and life sciences companies craft PR campaigns, comms strategy and content that don’t just make noise, they make…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 16 | 31 contacts → | ||||
Strong evidence “Liberty Comms is an international public relations and marketing agency specialising in technology.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 17 | 30 contacts → | ||||
Indirect evidence “Deliberate makes clever Nordic, US, and European startups and concepts make the news: showcasing to potential investors, strategic partners, employees, and users just what makes…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 18 | 26 contacts → | ||||
Indirect evidence “We’re one of the UK’s top Entertainment PR agencies.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 19 | 26 contacts → | ||||
Indirect evidence “We realise big ambitions, solve complex problems, build and protect reputations, and bring wild imaginations to life by unlocking the power of PR & strategic communications.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 20 | 26 contacts → | ||||
Indirect evidence “MD Communications is a bespoke communications consultancy dedicated to creating, building and protecting individual and corporate brand reputations.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 21 | 25 contacts → | ||||
Indirect evidence “We’re a communications agency for the digital age, with a team who know how to make a brand stand out both online and off.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 22 | 25 contacts → | ||||
Indirect evidence “PA Mediapoint is a powerful business ally, connecting the PR and communications industry with influential journalists, content creators and distribution solutions to ensure…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 23 | 24 contacts → | ||||
Indirect evidence “Ash Communications is an award-winning PR, marketing and communications company.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 24 | 23 contacts → | ||||
Strong evidence “Established in 2012, Multitude Media is an award-winning publicity company working with clients across the entertainment industry, offering dynamic campaigns for the television…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 25 | 20 contacts → | ||||
Strong evidence “We are The Outside Organisation, the UK’s finest Public Relations agency.” Source: RevenueBase Database · checked Sep 29, 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: public relations and media 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 public relations and media relations firms.
- Partial evidence
- Its own public description names part of public relations and media relations firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name public relations and media 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 462 public relations and media relations firms based in London, United Kingdom
See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 1,202 reachable decision-makers.
Free signup · no credit card
Public relations and media relations firms based in London, United Kingdom at a glance
As of Sep 29, 2026Companies by employee count
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 462 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 public relations and media 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 London, United Kingdom whose own description of what they do matches “public relations and media 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 public relations and media 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 public relations and media relations firms, and records with no verified work email. Companies headquartered outside London 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, 1,202 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 29, 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 and media relations firms by metro in the United Kingdom
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 public relations and media 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 public relations and media relations firms are there based in London, United Kingdom?
RevenueBase identified 462 public relations and media relations firms headquartered in London, 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?
Premier, headquartered in London, tops this list with the largest team on record.
Which city in the United Kingdom has the most public relations and media relations firms?
London leads the United Kingdom with 462 headquartered companies, followed by Manchester (34) and Leeds (18).
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 1,202 verified decision-maker contacts tracked across these 462 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 29, 2026.
Ready to reach these companies? Verified emails and direct dials for all 462 public relations and media relations firms based in London, United Kingdom. Start with a free account, no credit card.
Download this list →Related lists
Public relations and media relations firms by geography
- Public relations and media relations firms based in Melbourne, Australia
- Public relations and media relations firms based in Sydney, Australia
- Public relations and media relations firms based in Wien, Austria
- Public relations and media relations firms based in Rio De Janeiro, Brazil
- Public relations and media relations firms based in Sao Paulo, Brazil
- Public relations and media relations firms based in Toronto, Canada
- Public relations and media relations firms based in Vancouver, Canada
- Public relations and media relations firms based in Paris, France
- Public relations and media relations firms based in Berlin, Germany
- Public relations and media relations firms based in Hamburg, Germany
- Public relations and media relations firms based in Bangalore, India
- Public relations and media relations firms based in Mumbai, India
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
- Public relations and media relations firms based in Melbourne, Australia
- Public relations and media relations firms based in Sydney, Australia
- Public relations and media relations firms based in Wien, Austria
- Public relations and media relations firms based in Rio De Janeiro, Brazil
- Public relations and media relations firms based in Sao Paulo, Brazil
- Public relations and media relations firms based in Toronto, Canada