Company lists · Data refreshed September 2026

Top 25 Socially responsible investing companies based in the United Kingdom

Name: Socially responsible investing companies based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 91 companies tracked

RevenueBase identified 91 socially responsible investing companies headquartered in the United Kingdom as of September 2026 and tracks 2,922 professional contacts across them, including 1,607 with verified work emails. London is the largest hub.

This list covers socially responsible investing companies headquartered in the 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 19, 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 19, 2026 86% judged on-target in blind review

91Companies

2,922Contacts tracked

1,607Verified emails

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The 25 largest socially responsible investing companies based in the United Kingdom

Ranked by team size

Top 25 of 91 socially responsible investing companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to socially responsible investing 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	Federated Hermes Limited	Strong evidence	London, United KingdomHQ checked Sep 19, 2026	501-1,000	451 contacts →
	Strong evidence “Federated Hermes is guided by the conviction that responsible investing is the best way to create long-term wealth.” Source: RevenueBase Database · checked Sep 19, 2026
2	Impax Asset Management	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	201-500	331 contacts →
	Partial evidence “Founded in 1998, Impax is a specialist asset manager investing in the opportunities arising from the transition to a more sustainable global economy.” Source: RevenueBase Database · checked Sep 19, 2026
3	Principles For Responsible Investment	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	201-500	320 contacts →
	Partial evidence “The Principles for Responsible Investment (PRI) is an investor initiative in partnership with UNEP FI and the UN Global Compact.” Source: RevenueBase Database · checked Sep 19, 2026
4	Gresham House	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	201-500	227 contacts →
	Partial evidence “Gresham House is a specialist investor focused on delivering financial returns for clients by investing in the global themes shaping our future.” Source: RevenueBase Database · checked Sep 19, 2026
5	Generation Investment Management	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	51-200	156 contacts →
	Indirect evidence “Overview Generation was established in 2004 as an independent, private, investment management partnership with offices in London and San Francisco.” Source: RevenueBase Database · checked Sep 19, 2026
6	Shareaction	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	51-200	109 contacts →
	Partial evidence “ShareAction is an independent charity and an expert on responsible investment.” Source: RevenueBase Database · checked Sep 19, 2026
7	Waverton Investment Management	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	201-500	92 contacts →
	Indirect evidence “Waverton is an award-winning investment management house dedicated to creating high-quality investment solutions and providing bespoke, personal service for private clients…” Source: RevenueBase Database · checked Sep 19, 2026
8	Legal & General Investment Management Lgim	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	1,001-5,000	74 contacts →
	Indirect evidence “We are aware that a small number of investors have been targeted by fraudsters using the LGIM and L&G brands to promote fake funds and investment products.” Source: RevenueBase Database · checked Sep 19, 2026
9	Edentree Investment Management	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	51-200	67 contacts →
	Indirect evidence “EdenTree is a sustainable investment manager with a strong heritage.” Source: RevenueBase Database · checked Sep 19, 2026
10	River Global Investors RGI	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	51-200	63 contacts →
	Indirect evidence “RIVER GLOBAL HOLDINGS (RGH) WAS ACQUIRED BY LIONTRUST ON 30 JUNE 2026.” Source: RevenueBase Database · checked Sep 19, 2026
11	Ecofin	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	51 contacts →
	Indirect evidence “The Ecofin team at Redwheel manages a range of global equity thematic strategies with the aim of delivering strong risk-adjusted returns to clients while tackling some of the…” Source: RevenueBase Database · checked Sep 19, 2026
12	Castlefield	Partial evidence	Manchester, United KingdomHQ checked Sep 19, 2026	51-200	46 contacts →
	Partial evidence “We're Castlefield - an award-winning, employee-owned investment management and financial planning group, recognised for being at the forefront of ethical investing since 2002.” Source: RevenueBase Database · checked Sep 19, 2026
13	Greenbank	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	51-200	45 contacts →
	Indirect evidence “Tailored investment services, delivered sustainably.” Source: RevenueBase Database · checked Sep 19, 2026
14	Gravis	Indirect evidence	Mayfair, United KingdomHQ checked Sep 19, 2026	51-200	43 contacts →
	Indirect evidence “At Gravis we believe in a long-term approach to investment.” Source: RevenueBase Database · checked Sep 19, 2026
15	Troy Asset Management Limited	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	42 contacts →
	Indirect evidence “Our aim is to protect investors’ capital and increase its value over the long-term.” Source: RevenueBase Database · checked Sep 19, 2026
16	Evenlode Investment	Partial evidence	Evenlode, United KingdomHQ checked Sep 19, 2026	11-50	41 contacts →
	Partial evidence “Evenlode Investment Management is an employee-owned, North Cotswolds based investment company, with a sole focus on investing in the shares of high-quality companies over the long…” Source: RevenueBase Database · checked Sep 19, 2026
17	Osmosis Investment Management	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	40 contacts →
	Indirect evidence “Osmosis’ mission since 2009 has been to become the world’s leading dedicated sustainable asset manager, delivering client-focused investment solutions across multiple asset…” Source: RevenueBase Database · checked Sep 19, 2026
18	Impact Cubed	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	40 contacts →
	Indirect evidence “Impact Cubed is a specialist investment advisor and data provider with the mission of aligning the allocation of capital with a sustainable future.” Source: RevenueBase Database · checked Sep 19, 2026
19	Tribe Impact Capital	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	34 contacts →
	Indirect evidence “Tribe is the UK’s first dedicated Impact Wealth Manager and offers discretionary and advisory portfolio management.” Source: RevenueBase Database · checked Sep 19, 2026
20	Arch Emerging Markets Partners Limited	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	26 contacts →
	Indirect evidence “ARCH Emerging Markets Partners Limited (ARCH) was founded in March 2018 and is a specialist investment advisor with deep emerging market, private equity, asset management and…” Source: RevenueBase Database · checked Sep 19, 2026
21	Epworth Investment Management Limited	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	22 contacts →
	Indirect evidence “Epworth is an investment manager dedicated to serving the needs of UK churches and charities.” Source: RevenueBase Database · checked Sep 19, 2026
22	TREÏS	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	18 contacts →
	Indirect evidence “Treïs provides institutional asset management and advisory services, as well as direct investment opportunities for investors who seek to guide capital allocation in line with…” Source: RevenueBase Database · checked Sep 19, 2026
23	Chelverton Asset Management	Indirect evidence	Bath, United KingdomHQ checked Sep 19, 2026	11-50	16 contacts →
	Indirect evidence “Chelverton was founded in 1998 and is a boutique asset management firm managing a variety of closed and open-ended fund strategies.” Source: RevenueBase Database · checked Sep 19, 2026
24	Aikya Investment Management	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	1-10	9 contacts →
	Indirect evidence “Aikya is an independent, employee-owned, investment management company that specialises in Emerging Markets equities.” Source: RevenueBase Database · checked Sep 19, 2026
25	Greensphere Capital LLP	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	1-10	8 contacts →
	Indirect evidence “Greensphere excels in scaling engineered and nature-based technological solutions to solve some of the biggest systemic risks facing our generation.” Source: RevenueBase Database · checked Sep 19, 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: socially responsible investing 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 socially responsible investing companies.
Partial evidence: Its own public description names part of socially responsible investing companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name socially responsible investing 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 91 socially responsible investing companies based in the United Kingdom

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Socially responsible investing companies based in the United Kingdom at a glance

As of Sep 19, 2026

55.0%Verified-email coverage

32.1Average contacts per company

11-50Median size (employees)

60.4%Largest-city concentration · London

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 91 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 socially responsible investing 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 the United Kingdom whose own description of what they do matches “socially responsible investing 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 socially responsible investing 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 socially responsible investing companies, and records with no verified work email. Companies headquartered outside United Kingdom 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, 1,607 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 19, 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.

Socially responsible investing companies by metro

Socially responsible investing companies in London55

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 socially responsible investing 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 socially responsible investing companies are there based in the United Kingdom?

RevenueBase identified 91 socially responsible investing companies headquartered in the 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?

Federated Hermes Limited, headquartered in London, tops this list with the largest team on record.

Which city has the most socially responsible investing companies?

London leads with 55 headquartered companies, followed by Edinburgh (4) and Bath (2).

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 1,607 verified decision-maker contacts tracked across these 91 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 19, 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.