Company lists · Data refreshed September 2026

Top 25 Industrial pr firms based in London, United Kingdom

Name: Industrial pr firms based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 259 companies tracked

RevenueBase identified 259 industrial pr firms headquartered in London, United Kingdom as of September 2026 and tracks 2,190 professional contacts across them, including 983 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers industrial pr 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 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 28, 2026 86% judged on-target in blind review

259Companies

2,190Contacts tracked

983Verified emails

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The 25 largest industrial pr firms based in London, United Kingdom

Ranked by team size

Top 25 of 259 industrial pr firms based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to industrial pr firms: 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	The Romans	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	187 contacts →
	Partial evidence “We’re bored of boring PR.” Source: RevenueBase Database · checked Sep 28, 2026
2	PLMR	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	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 28, 2026
3	Tavistock	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	57 contacts →
	Indirect evidence “Tavistock is a leading strategic communications consultancy specialising in the corporate, financial and reputation management sectors.” Source: RevenueBase Database · checked Sep 28, 2026
4	Burson Buchanan	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	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, 2026
5	H Advisors Maitland	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	51 contacts →
	Indirect evidence “H/Advisors in the UK brings together the heritage, skills and insight of H/Advisors Maitland and H/Advisors Cicero to support leaders at their most important moments.” Source: RevenueBase Database · checked Sep 28, 2026
6	Rooster	Partial evidence	London, United KingdomHQ checked Sep 28, 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 28, 2026
7	Firefly Communications	Partial evidence	London, United KingdomHQ checked Sep 28, 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 28, 2026
8	Storm Communications	Indirect evidence	London, United KingdomHQ checked Sep 28, 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 28, 2026
9	Firstlight	Partial evidence	London, United KingdomHQ checked Sep 28, 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 28, 2026
10	Atticus Partners	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	34 contacts →
	Indirect evidence “Atticus Partners is an award winning integrated communications agency, with years of experience in strategic counsel, government affairs and public relations.” Source: RevenueBase Database · checked Sep 28, 2026
11	Rostrum	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	34 contacts →
	Partial evidence “Rostrum is a leading London PR agency.” Source: RevenueBase Database · checked Sep 28, 2026
12	Cardew Group	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	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, 2026
13	Babel B Corp	Indirect evidence	London, United KingdomHQ checked Sep 28, 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 28, 2026
14	The Communication Group PLC	Indirect evidence	London, United KingdomHQ checked Sep 28, 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 28, 2026
15	Spark Communications UK	Partial evidence	London, United KingdomHQ checked Sep 28, 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 28, 2026
16	Bubble Agency	Partial evidence	London, United KingdomHQ checked Sep 28, 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 28, 2026
17	Spreckley	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	28 contacts →
	Partial evidence “Digital transformation and business continuity are at the heart of our creative, integrated and content-driven PR campaigns.” Source: RevenueBase Database · checked Sep 28, 2026
18	Borkowski	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	26 contacts →
	Partial 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 28, 2026
19	MD Communications	Indirect evidence	London, United KingdomHQ checked Sep 28, 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 28, 2026
20	Kaso Legg Communications	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	20 contacts →
	Indirect evidence “Founded by Hysni Kaso and Jamie Legg, KL was designed on the fundamental belief external financial communications agencies should deliver more efficient and effective results.” Source: RevenueBase Database · checked Sep 28, 2026
21	BCM Public Relations	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	20 contacts →
	Indirect evidence “BCM is a leading B2B public relations agency specialising in the automation, energy, manufacturing and transportation sectors.” Source: RevenueBase Database · checked Sep 28, 2026
22	The Outside Organisation	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	20 contacts →
	Indirect evidence “We are The Outside Organisation, the UK’s finest Public Relations agency.” Source: RevenueBase Database · checked Sep 28, 2026
23	LSFPR	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	20 contacts →
	Partial evidence “LSF PR is a multi-award-winning international public relations agency known for delivering high-impact, results-driven communications.” Source: RevenueBase Database · checked Sep 28, 2026
24	Seven Consultancy	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	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, 2026
25	Influence Associates	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	19 contacts →
	Partial evidence “Influence Associates was built to be the best automotive, e-mobility, tech, collector car and motorsport, communications and PR agency and over the last decade we have grown into…” Source: RevenueBase Database · checked Sep 28, 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: industrial pr 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 industrial pr firms.
Partial evidence: Its own public description names part of industrial pr firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name industrial pr 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 259 industrial pr firms based in London, United Kingdom

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Industrial pr firms based in London, United Kingdom at a glance

As of Sep 28, 2026

44.9%Verified-email coverage

8.5Average contacts per company

1-10Median size (employees)

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

159

11-50

51-200

201-500

501-1,000

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 259 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 industrial pr 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 “industrial pr 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 industrial pr 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 industrial pr 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, 983 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.

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 industrial pr 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 industrial pr firms are there based in London, United Kingdom?

RevenueBase identified 259 industrial pr 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?

The Romans, headquartered in London, tops this list with the largest team on record.

Which city in the United Kingdom has the most industrial pr firms?

London leads the United Kingdom with 259 headquartered companies, followed by Manchester (23) and Bristol (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 983 verified decision-maker contacts tracked across these 259 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.

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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.