Company lists · Data refreshed September 2026
Top 25 Professional services pr agencies based in the United Kingdom
RevenueBase identified 1,733 professional services pr agencies headquartered in the United Kingdom as of September 2026 and tracks 14,521 professional contacts across them, including 4,872 with verified work emails. London is the largest hub.
This list covers professional services pr agencies 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.
The 25 largest professional services pr agencies based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 449 contacts → | ||||
Indirect evidence “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: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 2 | 367 contacts → | ||||
Partial evidence “HSL is a hard-working and creative PR and marketing communications agency.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 3 | 292 contacts → | ||||
Indirect evidence “Four is one of the leading independent integrated communications agencies in the UK and the Middle East.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 4 | 213 contacts → | ||||
Partial evidence “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: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 5 | 187 contacts → | ||||
Partial evidence “We’re bored of boring PR.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 6 | 133 contacts → | ||||
Indirect evidence “Citypress is one of the UK’s leading communications agencies and we’re proud to represent some of the country’s biggest and best-loved brands.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 7 | 130 contacts → | ||||
Indirect evidence “We deliver marketing that drives real business impact in our core sectors; retail destinations, leisure & attractions, and wines & spirits.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 8 | 111 contacts → | ||||
Indirect evidence “Camargue is an award-winning, employee-owned communications agency.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 9 | 101 contacts → | ||||
Indirect 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, 2026Thanks. The Data Team will review it. | |||||
| 10 | 89 contacts → | ||||
Indirect evidence “Connect is a communications agency specialising in public affairs and political strategy, corporate communications and reputation management.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 11 | 81 contacts → | ||||
Indirect evidence “This is WPR.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 12 | 78 contacts → | ||||
Indirect 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, 2026Thanks. The Data Team will review it. | |||||
| 13 | 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, 2026Thanks. The Data Team will review it. | |||||
| 14 | 72 contacts → | ||||
Indirect evidence “PRCO is a consultancy-first communications agency for the world’s foremost luxury brands in real estate, hospitality and lifestyle.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 15 | 71 contacts → | ||||
Partial 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 21, 2026Thanks. The Data Team will review it. | |||||
| 16 | 67 contacts → | ||||
Partial evidence “markettiers is a broadcast PR specialist offering strategic and creative consultancy to place high‑impact stories and interviews across TV, radio and emerging broadcast channels.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 17 | 64 contacts → | ||||
Indirect evidence “We’re a full-service, Leicester-based but fully remote creative agency that delivers impactful work, powered by original thinking, clear insight and a passion for what we do.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 18 | 57 contacts → | ||||
Partial evidence “Tank is a digital marketing and PR agency that’s skilled in the art, and science of digital marketing.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 19 | 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 21, 2026Thanks. The Data Team will review it. | |||||
| 20 | 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 21, 2026Thanks. The Data Team will review it. | |||||
| 21 | 53 contacts → | ||||
Indirect evidence “Eulogy is an independent creative comms agency, designed to drive brand growth.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 22 | 52 contacts → | ||||
Partial evidence “Purplex is an award winning PR, digital marketing and creative agency with clients in the UK and across the globe.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 23 | 51 contacts → | ||||
Partial evidence “Press Box PR is a public relations and content marketing agency specialising in building brands and growing search visibility.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 24 | 49 contacts → | ||||
Indirect evidence “Pagefield is an independent communications consultancy specialising in integrated campaigning, public affairs and corporate and brand communications.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 25 | 49 contacts → | ||||
Indirect evidence “We provide financial and corporate communications advice to help our clients succeed.” Source: RevenueBase Database · checked Sep 21, 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: professional services pr agencies. 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 professional services pr agencies.
- Partial evidence
- Its own public description names part of professional services pr agencies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name professional services pr agencies. 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 1,733 professional services pr agencies based in the United Kingdom
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Professional services pr agencies based in the United Kingdom at a glance
As of Sep 21, 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 1,733 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 professional services pr agencies, 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 “professional services pr agencies”. 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 professional services pr agencies), 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 professional services pr agencies, 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, 4,872 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.
Professional services pr agencies 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 professional services pr agencies, 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 professional services pr agencies are there based in the United Kingdom?
RevenueBase identified 1,733 professional services pr agencies 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 professional services pr agencies?
London leads with 669 headquartered companies, followed by Manchester (46) and Leeds (26).
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 4,872 verified decision-maker contacts tracked across these 1,733 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.
Ready to reach these companies? Verified emails and direct dials for all 1,733 professional services pr agencies based in the United Kingdom. Start with a free account, no credit card.
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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.
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