Company lists · Data refreshed September 2026

Top 25 Government affairs consultancies based in London, United Kingdom

Name: Government affairs consultancies 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 89 companies tracked

RevenueBase identified 89 government affairs consultancies headquartered in London, United Kingdom as of September 2026 and tracks 1,084 professional contacts across them, including 572 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers government affairs consultancies 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

89Companies

1,084Contacts tracked

572Verified emails

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The 25 largest government affairs consultancies based in London, United Kingdom

Ranked by team size

Top 25 of 89 government affairs consultancies 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 government affairs consultancies: 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	Portland	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	229 contacts →
	Partial evidence “Portland is a consultancy specialising in public affairs, corporate affairs and geopolitics.” Source: RevenueBase Database · checked Sep 28, 2026
2	Flint Global	Indirect evidence	London, United KingdomHQ checked Sep 28, 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 28, 2026
3	PLMR	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	78 contacts →
	Partial 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
4	WA Communications	Indirect evidence	London, United KingdomHQ checked Sep 28, 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 28, 2026
5	Atticus Partners	Strong evidence	London, United KingdomHQ checked Sep 28, 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 28, 2026
6	Cratus Group	Indirect evidence	London, United KingdomHQ checked Sep 28, 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 28, 2026
7	Lodestone Communications	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	26 contacts →
	Indirect evidence “Lodestone is an award winning strategy and communications agency with a purpose.” Source: RevenueBase Database · checked Sep 28, 2026
8	EUK Consulting	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	22 contacts →
	Indirect evidence “EUK is an experienced team of specialists in the management of regulation, corporate reputation, and stakeholder relationships.” Source: RevenueBase Database · checked Sep 28, 2026
9	FIELD	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	21 contacts →
	Partial evidence “We are public affairs, communications and industry experts with a proud reputation and track record of helping our clients shape policy, perceptions and places, through a…” Source: RevenueBase Database · checked Sep 28, 2026
10	Brevia Consulting	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	20 contacts →
	Indirect evidence “Brevia Consulting provides straightforward political and communications support that helps organisations achieve their objectives.” Source: RevenueBase Database · checked Sep 28, 2026
11	WPI Strategy	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	19 contacts →
	Partial evidence “WPI Strategy is a specialist agency with a unique approach that combines public affairs and communications advisory with economic analysis to support clients across regulatory…” Source: RevenueBase Database · checked Sep 28, 2026
12	Fleetwood Strategy	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	18 contacts →
	Partial evidence “Fleetwood Strategy provides an integrated service across communications, public affairs and opinion research to help organisations protect, grow and measure their licence to…” Source: RevenueBase Database · checked Sep 28, 2026
13	TENDO	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	17 contacts →
	Partial evidence “We are an award-winning public affairs, public relations, communications and campaign agency.” Source: RevenueBase Database · checked Sep 28, 2026
14	Trafalgar Strategy	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	15 contacts →
	Partial evidence “Trafalgar Strategy is a strategic communications consultancy, specializing in public affairs, crisis comms and reputation management.” Source: RevenueBase Database · checked Sep 28, 2026
15	Inline Policy	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	15 contacts →
	Indirect evidence “Inline is a pioneering political consultancy that gives clear and comprehensive political and regulatory advice.” Source: RevenueBase Database · checked Sep 28, 2026
16	Northpoint Strategy	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	13 contacts →
	Partial evidence “NorthPoint Strategy is an independent political and communications consultancy specialising in public affairs and public relations.” Source: RevenueBase Database · checked Sep 28, 2026
17	Ithaca Partners	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	12 contacts →
	Indirect evidence “Turns out capitalism is complicated, politics and regulation shape it; investors demand more from companies; employees are at the same time vocal, worried and demanding; and…” Source: RevenueBase Database · checked Sep 28, 2026
18	Sovereign Strategy	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	12 contacts →
	Indirect evidence “Sovereign Strategy was established in in response to a growing need by public and private corporations, international organisations and civil society to meet the growing…” Source: RevenueBase Database · checked Sep 28, 2026
19	Elva Partners	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	7 contacts →
	Partial evidence “Elva Partners is a discreet search & and recruitment consultancy focused on the world of corporate affairs We focus on finding exceptional talent in strategic communications…” Source: RevenueBase Database · checked Sep 28, 2026
20	Central Lobby Consultants	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	6 contacts →
	Partial evidence “Central Lobby Consultants Ltd (CLC) is an independent parliamentary and public affairs consultancy.” Source: RevenueBase Database · checked Sep 28, 2026
21	Highbury Communications	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	5 contacts →
	Partial evidence “Highbury Communications is a boutique consultancy providing strategic communications and public affairs advice to start-ups, scale-ups and global businesses.” Source: RevenueBase Database · checked Sep 28, 2026
22	ELIPE	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	5 contacts →
	Indirect evidence “We at ELIPE have a deep understanding of the business policy landscape, enabling us to bring relevant, well-researched and timely insights and analysis tailored to our clients'…” Source: RevenueBase Database · checked Sep 28, 2026
23	Capital Counsel	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	4 contacts →
	Strong evidence “Capital Counsel is a bespoke consultancy providing strategic advice, business and regulatory support, government affairs and communications services.” Source: RevenueBase Database · checked Sep 28, 2026
24	Counsel	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	4 contacts →
	Partial evidence “Independent consultancy offering advice and support on policy, public affairs, communications, strategy and governance.” Source: RevenueBase Database · checked Sep 28, 2026
25	Tarsh Consulting	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	3 contacts →
	Partial evidence “We enhance our clients’ profiles in the media; we forge valuable partnerships for them; and we successfully lobby governments.” 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: government affairs consultancies. 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 government affairs consultancies.
Partial evidence: Its own public description names part of government affairs consultancies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name government affairs consultancies. 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 89 government affairs consultancies based in London, United Kingdom

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Government affairs consultancies based in London, United Kingdom at a glance

As of Sep 28, 2026

52.8%Verified-email coverage

12.2Average contacts per company

1-10Median size (employees)

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

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 89 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 government affairs consultancies, 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 “government affairs consultancies”. 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 government affairs consultancies), 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 government affairs consultancies, 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, 572 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 government affairs consultancies, 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 government affairs consultancies are there based in London, United Kingdom?

RevenueBase identified 89 government affairs consultancies 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?

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

Which city in the United Kingdom has the most government affairs consultancies?

London leads the United Kingdom with 89 headquartered companies, followed by Belfast (4) and Bristol (3).

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 572 verified decision-maker contacts tracked across these 89 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.