Company lists · Data refreshed September 2026

Top 25 Public affairs consulting firms based in London, United Kingdom

Name: Public affairs consulting 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 13, 2026 229 companies tracked

RevenueBase identified 229 public affairs consulting firms headquartered in London, United Kingdom as of September 2026 and tracks 4,626 professional contacts across them, including 2,690 with verified work emails and 560 with mobile numbers. London is the largest hub.

This list covers public affairs consulting 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 13, 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 13, 2026 86% judged on-target in blind review

229Companies

4,626Contacts tracked

2,690Verified emails

560Mobile numbers

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The 25 largest public affairs consulting firms based in London, United Kingdom

Ranked by team size

Top 25 of 229 public affairs consulting firms based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 13, 2026. RevenueBase Smart Search rates how each company's information relates to public affairs consulting 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	Brunswick Group	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	1,001-5,000	1,563 contacts →
	Indirect evidence “Brunswick is a global advisory firm.” Source: RevenueBase Database · checked Sep 13, 2026
2	Portland	Strong evidence	London, United KingdomHQ checked Sep 13, 2026	201-500	229 contacts →
	Strong evidence “Portland is a consultancy specialising in public affairs, corporate affairs and geopolitics.” Source: RevenueBase Database · checked Sep 13, 2026
3	Flint Global	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	51-200	214 contacts →
	Indirect evidence “Flint specialises in advising businesses and investors on how to navigate and surmount the policy, political, regulatory and competition challenges they face in European and…” Source: RevenueBase Database · checked Sep 13, 2026
4	Hanover Communications	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	201-500	177 contacts →
	Indirect evidence “Hanover is an award-winning communications consultancy that advises enterprises, institutions, and individuals on rewiring their strategies for long-term success.” Source: RevenueBase Database · checked Sep 13, 2026
5	Milltown Partners	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	51-200	174 contacts →
	Partial evidence “Milltown Partners is a global advisory firm working with influential organisations and individuals on the communications and public policy challenges that define their reputations.” Source: RevenueBase Database · checked Sep 13, 2026
6	SEC Newgate UK	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	1,001-5,000	142 contacts →
	Partial evidence “Strategic corporate affairs in the UK and around the globe.” Source: RevenueBase Database · checked Sep 13, 2026
7	Hanbury Strategy	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	51-200	125 contacts →
	Indirect evidence “Hanbury is a strategic advisory firm that turns insight into impact.” Source: RevenueBase Database · checked Sep 13, 2026
8	Camargue	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	51-200	111 contacts →
	Indirect evidence “Camargue is an award-winning, employee-owned communications agency.” Source: RevenueBase Database · checked Sep 13, 2026
9	Connect Group	Strong evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	89 contacts →
	Strong evidence “Connect is a communications agency specialising in public affairs and political strategy, corporate communications and reputation management.” Source: RevenueBase Database · checked Sep 13, 2026
10	PLMR	Strong evidence	London, United KingdomHQ checked Sep 13, 2026	51-200	78 contacts →
	Strong 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 13, 2026
11	WA Communications	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	51-200	71 contacts →
	Indirect evidence “We are a strategic communications consultancy helping organisations achieve policy and reputational outcomes.” Source: RevenueBase Database · checked Sep 13, 2026
12	Hawthorn Advisors	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	51-200	70 contacts →
	Indirect evidence “Hawthorn Advisors is a leading strategic communications consultancy with international reach.” Source: RevenueBase Database · checked Sep 13, 2026
13	Tavistock	Indirect evidence	London, United KingdomHQ checked Sep 13, 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 13, 2026
14	Burson Buchanan	Indirect evidence	London, United KingdomHQ checked Sep 13, 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 13, 2026
15	H Advisors Maitland	Indirect evidence	London, United KingdomHQ checked Sep 13, 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 13, 2026
16	Pagefield	Strong evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	49 contacts →
	Strong evidence “Pagefield is an independent communications consultancy specialising in integrated campaigning, public affairs and corporate and brand communications.” Source: RevenueBase Database · checked Sep 13, 2026
17	Greenbrook	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	40 contacts →
	Indirect evidence “Greenbrook is an independent strategic communications firm that advises clients on all aspects of their business through the lens of reputation.” Source: RevenueBase Database · checked Sep 13, 2026
18	Luther Pendragon	Strong evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	35 contacts →
	Strong evidence “Luther Pendragon is a strategic communications and public affairs consultancy trusted to guide organisations through uncertain times.” Source: RevenueBase Database · checked Sep 13, 2026
19	CTN Group	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	35 contacts →
	Indirect evidence “Impact Communications For over thirty years, we've been helping our clients across the globe shape strategies, enhance reputations and inspire changing behaviours.” Source: RevenueBase Database · checked Sep 13, 2026
20	Atticus Partners	Strong evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	34 contacts →
	Strong 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 13, 2026
21	Cratus Group	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	33 contacts →
	Indirect evidence “Founded in 2009, we’ve helped some of the UK’s best known brands deliver local and national campaigns, manage political and reputational risks, and influence national policy on…” Source: RevenueBase Database · checked Sep 13, 2026
22	Farrant Group	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	33 contacts →
	Indirect evidence “Farrant Group is a global strategic communications firm.” Source: RevenueBase Database · checked Sep 13, 2026
23	Borkowski	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	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 13, 2026
24	Lodestone Communications	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	26 contacts →
	Indirect evidence “Lodestone is an award winning strategy and communications agency with a purpose.” Source: RevenueBase Database · checked Sep 13, 2026
25	Aequitas Global	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	25 contacts →
	Indirect evidence “Headquartered in London, and present in Paris, West Africa, the United States, the Caribbean and South East Asia, Aequitas Global is an award-winning integrated policy…” Source: RevenueBase Database · checked Sep 13, 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: public affairs consulting 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 affairs consulting firms.
Partial evidence: Its own public description names part of public affairs consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name public affairs consulting 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 229 public affairs consulting firms based in London, United Kingdom

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Public affairs consulting firms based in London, United Kingdom at a glance

As of Sep 13, 2026

58.1%Verified-email coverage

12.1%Mobile-number coverage

20.2Average contacts per company

1-10Median size (employees)

96.9%Largest-city concentration · London

Sep 13, 2026Page data refreshed

Companies by employee count

1-10

137

11-50

51-200

201-500

501-1,000

1,001-5,000

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 15.0d

2,1440–30

52331–60

1261–90

090–180

11180+

Company record updated

Median 57.0d

00–30

2,57131–60

1,39161–90

37490–180

290180+

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 affairs consulting 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 affairs consulting 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 affairs consulting 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 affairs consulting 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, 2,690 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 13, 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 affairs consulting firms by metro in the United Kingdom

Public affairs consulting firms in London222

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 affairs consulting 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 affairs consulting firms are there based in London, United Kingdom?

RevenueBase identified 229 public affairs consulting 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?

Brunswick Group, headquartered in London, tops this list with the largest team on record.

Which city has the most public affairs consulting firms?

London leads with 222 headquartered companies, followed by Edinburgh (11) and Belfast (9).

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 2,690 verified decision-maker contacts tracked across these 229 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 13, 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.