Company lists · Data refreshed September 2026

Top 25 Pr software companies based in London, United Kingdom

Name: Pr software companies based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 398 companies tracked

RevenueBase identified 398 pr software companies headquartered in London, United Kingdom as of September 2026 and tracks 4,154 professional contacts across them, including 1,307 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers pr software companies 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 29, 2026 86% judged on-target in blind review

398Companies

4,154Contacts tracked

1,307Verified emails

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The 25 largest pr software companies based in London, United Kingdom

Ranked by team size

Top 25 of 398 pr software companies based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to pr software companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Purple	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	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 29, 2026
2	Axicom	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	213 contacts →
	Indirect evidence “Axicom is the Burson agency for tech brands & brands with a tech story.” Source: RevenueBase Database · checked Sep 29, 2026
3	The Romans	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	201-500	187 contacts →
	Partial evidence “We’re bored of boring PR.” Source: RevenueBase Database · checked Sep 29, 2026
4	Roxhill Media	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	107 contacts →
	Indirect evidence “Roxhill is a media intelligence platform built by PRs for PRs, helping them to boost the value they deliver to their business, streamline their day, and build rewarding…” Source: RevenueBase Database · checked Sep 29, 2026
5	Rooster	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	43 contacts →
	Partial 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, 2026
6	Firefly Communications	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	43 contacts →
	Partial evidence “Firefly Communications is a pan-European public relations agency that is shaping reputations by offering PR and digital communications services for firms that thrive on technology.” Source: RevenueBase Database · checked Sep 29, 2026
7	Storm Communications	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	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, 2026
8	Sauce Communications	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	40 contacts →
	Partial evidence “Sauce Communications is one of the UK's leading PR, social media and digital marketing agencies specialising in restaurants, food and drink brands, bars and hotels.” Source: RevenueBase Database · checked Sep 29, 2026
9	Dawbell	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	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, 2026
10	Firstlight	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	36 contacts →
	Partial evidence “firstlight group is an independent corporate and B2B communications consultancy, ranked among PR Week UK's top 25 corporate agencies for 2025.” Source: RevenueBase Database · checked Sep 29, 2026
11	Pulsar Group	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	1,001-5,000	36 contacts →
	Indirect evidence “Powering a world of audience-first communication.” Source: RevenueBase Database · checked Sep 29, 2026
12	Rostrum	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	34 contacts →
	Partial evidence “Rostrum is a leading London PR agency.” Source: RevenueBase Database · checked Sep 29, 2026
13	Babel B Corp	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	33 contacts →
	Indirect evidence “For two decades, Babel has been helping global B2B tech brands tell the stories that matter.” Source: RevenueBase Database · checked Sep 29, 2026
14	The PR Network	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	n/a	33 contacts →
	Partial 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, 2026
15	The Communication Group PLC	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	33 contacts →
	Indirect 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, 2026
16	Spark Communications UK	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	31 contacts →
	Partial 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, 2026
17	Liberty Comms	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	31 contacts →
	Indirect evidence “Liberty Comms is an international public relations and marketing agency specialising in technology.” Source: RevenueBase Database · checked Sep 29, 2026
18	Bubble Agency	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	30 contacts →
	Partial evidence “Founded in Bubble is a full-service PR, marketing and events agency that transforms businesses with its knowledge and network.” Source: RevenueBase Database · checked Sep 29, 2026
19	Deliberate PR	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	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, 2026
20	Mmgy Grifco PR	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	27 contacts →
	Partial evidence “MMGY Grifco PR is an award-winning London based lifestyle PR agency covering luxury travel, wellness, F&B, and property PR.” Source: RevenueBase Database · checked Sep 29, 2026
21	MD Communications	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	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, 2026
22	Fieldhouse Associates	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	25 contacts →
	Partial evidence “FieldHouse Associates is the definitive PR agency for the fast-growth tech and private markets ecosystem.” Source: RevenueBase Database · checked Sep 29, 2026
23	R. Agency	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	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, 2026
24	PA Mediapoint	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	1,001-5,000	25 contacts →
	Partial 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, 2026
25	ASH Communications	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	1-10	24 contacts →
	Partial evidence “Ash Communications is an award-winning PR, marketing and communications company.” Source: RevenueBase Database · checked Sep 29, 2026

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: pr software companies. 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 pr software companies.
Partial evidence: Its own public description names part of pr software companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name pr software companies. 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 398 pr software companies based in London, United Kingdom

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Pr software companies based in London, United Kingdom at a glance

As of Sep 29, 2026

31.5%Verified-email coverage

10.4Average contacts per company

1-10Median size (employees)

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

274

11-50

103

51-200

201-500

501-1,000

1,001-5,000

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 398 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 software companies, 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 “pr software companies”. 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 pr software companies), 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 pr software companies, 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, 1,307 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.

Pr software companies by metro in the United Kingdom

Pr software companies in Manchester28

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 pr software companies, 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 pr software companies are there based in London, United Kingdom?

RevenueBase identified 398 pr software companies 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 in the United Kingdom has the most pr software companies?

London leads the United Kingdom with 398 headquartered companies, followed by Manchester (28) and Leeds (14).

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 1,307 verified decision-maker contacts tracked across these 398 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.

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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.