Company lists · Data refreshed September 2026
Top 25 Pr and media agencies based in London, United Kingdom
RevenueBase identified 898 pr and media agencies headquartered in London, United Kingdom as of September 2026 and tracks 15,501 professional contacts across them, including 3,762 with verified work emails. London is the largest hub.
This list covers pr and media agencies 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, 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.
The 25 largest pr and media agencies based in London, United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 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, 2026Thanks. The Data Team will review it. | |||||
| 2 | 272 | ||||
“Creative communications for entertainment, arts and culture.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 3 | 224 | ||||
“We’re an award-winning, founder-led, communications agency based in London, Minneapolis, New York and San Francisco with an extensive global capability.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 4 | Havas Media GroupPartial evidence | 220 | |||
“Target Media is the UK's leading independent entertainment and lifestyle media agency, with over sixty clients in the Games, Film, Youth, Home Entertainment and Leisure industries.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 5 | 213 | ||||
“Axicom is the Burson agency for tech brands & brands with a tech story.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 6 | HarvardStrong evidence | 213 | |||
“Harvard is an award-winning integrated Marketing and PR agency for tech brands big and small, with a full-service offering including: media and analyst relations, marketing…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 7 | The RomansPartial evidence | 187 | |||
“We’re bored of boring PR.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 8 | 112 | ||||
“Battenhall is an award-winning communications agency for the social media age.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 9 | 97 | ||||
“Welcome … to the land of Hope & Glory.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 10 | 83 | ||||
“Halpern is an agency powerhouse.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 11 | 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, 2026Thanks. The Data Team will review it. | |||||
| 12 | 74 | ||||
“We are a fully integrated fashion, beauty and lifestyle communications agency with an unrivalled combination of experience and expertise.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 13 | 67 | ||||
“CCGroup is part of The Hoffman Agency, serving as its specialist UK B2B technology communications consultancy.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 14 | 66 | ||||
“We are now Golin Ketchum London.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 15 | 61 | ||||
“We're the most awarded agency in the UK winning more PR Week Awards in the last decade than any other agency (fun fact: 26).” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 16 | 60 | ||||
“A PR agency on a mission to bring the brightest minds together to create work that gets noticed, makes a difference and passes into popular culture.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 17 | Square In The AIRPartial evidence | 56 | |||
“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: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 18 | Tyto PRPartial evidence | 54 | |||
“Tyto is the only PR and communications agency built to scale high-growth tech companies faster across Europe.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 19 | 54 | ||||
“We are the strategic acumen of ‘Gen Plus Group’, a dynamic communications agency where strategy meets storytelling.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 20 | YOU AgencyIndirect evidence | 54 | |||
“A few agencies say it.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 21 | Shine CommunicationsIndirect evidence | 50 | |||
“Now merged into The Academy.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 22 | Irvine PartnersIndirect evidence | 50 | |||
“We are Irvine Partners Creative Communications.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 23 | PagefieldIndirect evidence | 49 | |||
“Pagefield is an independent communications consultancy specialising in integrated campaigning, public affairs and corporate and brand communications.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 24 | COWIndirect evidence | 49 | |||
“We create things that get you talked about.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 25 | Trace PublicityIndirect evidence | 48 | |||
“From concept to delivery, we devise multi channel, strategic campaigns with maximum impact.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 898 pr and media agencies based in London, United Kingdom
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Pr and media agencies based in London, United Kingdom at a glance
As of Sep 5, 2026Companies by employee count
Email recency for this list is measured across the whole United Kingdom list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for London, over 898 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 pr and media agencies, 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 London, United Kingdom whose own description of what they do matches “pr and media agencies”. 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 pr and media agencies, 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 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, 3,762 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.
Pr and media agencies by metro in the United Kingdom
- Pr and media agencies in London898
- Pr and media agencies in Manchester63
- Pr and media agencies in Leeds32
- Pr and media agencies in Bristol28
- Pr and media agencies in Edinburgh25
Frequently asked
How many pr and media agencies are there based in London, United Kingdom?
RevenueBase identified 898 pr and media agencies 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?
Purple, headquartered in London, tops this list with the largest team on record.
Which city has the most pr and media agencies?
London leads with 898 headquartered companies, followed by Manchester (63) and Leeds (32).
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 3,762 verified decision-maker contacts tracked across these 898 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.
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