Company lists · Data refreshed September 2026

Top 25 Investor relations consultancies based in London, United Kingdom

Name: Investor relations 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 157 companies tracked

RevenueBase identified 157 investor relations consultancies headquartered in London, United Kingdom as of September 2026 and tracks 1,658 professional contacts across them, including 887 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers investor relations 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

157Companies

1,658Contacts tracked

887Verified emails

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The 25 largest investor relations consultancies based in London, United Kingdom

Ranked by team size

Top 25 of 157 investor relations 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 investor relations 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	Proxymity	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	212 contacts →
	Partial evidence “About Proxymity Adopted by 94% of FTSE 100 companies, Proxymity is a leading digital investor communications platform that connects issuers, intermediaries, and investors directly…” Source: RevenueBase Database · checked Sep 28, 2026
2	Edison Group	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	104 contacts →
	Strong evidence “Edison Group is a global investor relations and communications business dedicated to helping companies connect with the right investors.” 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	Churchgate Partners	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	54 contacts →
	Strong evidence “Churchgate Partners is an international investor relations firm operating across Asia Pacific and Middle East.” 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	The Investor Relations Society	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	n/a	36 contacts →
	Strong evidence “The Investor Relations Society (IR Society) is a membership organisation that exists to develop the investor relations profession in the UK and beyond.” Source: RevenueBase Database · checked Sep 28, 2026
7	Gather London	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	32 contacts →
	Indirect evidence “Gather is an industry leading independent stakeholder communications specialist, building stories that communicate purpose, explain performance, and instil belief.” Source: RevenueBase Database · checked Sep 28, 2026
8	CEN Group	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	30 contacts →
	Partial evidence “CEN Group is a leading, UK-based investor communications and sustainability consultancy.” Source: RevenueBase Database · checked Sep 28, 2026
9	Hardman & CO	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	27 contacts →
	Indirect evidence “Hardman & Co has a long established reputation for high quality and independent research on small and mid cap quoted companies.” Source: RevenueBase Database · checked Sep 28, 2026
10	Black&callow	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	24 contacts →
	Partial evidence “We specialise in producing investor communications which help clients inform, influence and inspire their stakeholders.” Source: RevenueBase Database · checked Sep 28, 2026
11	Curation	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	24 contacts →
	Partial evidence “Curation is a community-led platform driven by a collective of proven investors.” Source: RevenueBase Database · checked Sep 28, 2026
12	Ingage IR	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	23 contacts →
	Strong evidence “ingage is a state-of-the-art Investor Relations CRM and corporate access software platform for corporate IR teams and institutional investors.” Source: RevenueBase Database · checked Sep 28, 2026
13	Cmi2i	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	23 contacts →
	Indirect evidence “CMi2i provides unique capital markets intelligence and guidance to issuers and their advisors.” Source: RevenueBase Database · checked Sep 28, 2026
14	JPES	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	22 contacts →
	Partial evidence “JPES is a specialist communications consultancy to the investment industry We help our clients articulate their value, connect with their stakeholders and win new business.” Source: RevenueBase Database · checked Sep 28, 2026
15	Optimum Strategic Communications	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	22 contacts →
	Strong evidence “Optimum is an international strategic communications firm specialising in investor relations, corporate and financial communications.” Source: RevenueBase Database · checked Sep 28, 2026
16	D.F. King LTD	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	21 contacts →
	Indirect evidence “D.F.” Source: RevenueBase Database · checked Sep 28, 2026
17	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
18	ST Brides Partners LTD	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	20 contacts →
	Strong evidence “St Brides is an investor/financial public relations and marketing consultancy for growth companies, founded in 2001.” Source: RevenueBase Database · checked Sep 28, 2026
19	Squarewell Partners	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	18 contacts →
	Indirect evidence “SquareWell is a trusted advisor to some of the world's largest companies.” Source: RevenueBase Database · checked Sep 28, 2026
20	Capital Access	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	17 contacts →
	Indirect evidence “Capital Access Group is an independent IR advisory business connecting quoted companies with new and under-serviced institutions across the UK & Europe.” Source: RevenueBase Database · checked Sep 28, 2026
21	VOX Markets	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	16 contacts →
	Indirect evidence “Vox Markets is revolutionising the way companies engage with shareholders and the stock market at large.” Source: RevenueBase Database · checked Sep 28, 2026
22	Fairvue	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	16 contacts →
	Strong evidence “Fairvue is a strategic management consultancy dedicated to investor relations and the capital markets.” Source: RevenueBase Database · checked Sep 28, 2026
23	Equitory	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	15 contacts →
	Partial evidence “Communicating your value \| Connecting with investors Equitory is Europe's largest dedicated investor communication consultancy, providing independent advice to help listed…” Source: RevenueBase Database · checked Sep 28, 2026
24	Yellow Jersey PR	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	14 contacts →
	Indirect evidence “Yellow Jersey PR is a multi-award-winning, London and Zurich-based, communications agency with circa 30 professionals that help clients tell their stories in a clear and…” Source: RevenueBase Database · checked Sep 28, 2026
25	Accellency	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	13 contacts →
	Partial evidence “We advise investment funds and portfolio companies on strategy, content and delivery to raise capital, increase investor engagement and boost valuation.” 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: investor relations 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 investor relations consultancies.
Partial evidence: Its own public description names part of investor relations consultancies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name investor relations 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 157 investor relations consultancies based in London, United Kingdom

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Investor relations consultancies based in London, United Kingdom at a glance

As of Sep 28, 2026

53.5%Verified-email coverage

10.6Average 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 157 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 investor relations 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 “investor relations 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 investor relations 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 investor relations 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, 887 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 investor relations 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 investor relations consultancies are there based in London, United Kingdom?

RevenueBase identified 157 investor relations 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?

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

Which city in the United Kingdom has the most investor relations consultancies?

London leads the United Kingdom with 157 headquartered companies, followed by City Of London (3) and Barnt Green (1).

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 887 verified decision-maker contacts tracked across these 157 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.