Company lists · Data refreshed September 2026

Top 25 Socially responsible investment firms based in London, United Kingdom

Name: Socially responsible investment 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 114 companies tracked

RevenueBase identified 114 socially responsible investment firms headquartered in London, United Kingdom as of September 2026 and tracks 3,630 professional contacts across them, including 1,910 with verified work emails and 330 with mobile numbers. London is the largest hub.

This list covers socially responsible investment 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

114Companies

3,630Contacts tracked

1,910Verified emails

330Mobile numbers

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The 25 largest socially responsible investment firms based in London, United Kingdom

Ranked by team size

Top 25 of 114 socially responsible investment 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 socially responsible investment 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	Federated Hermes Limited	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	501-1,000	451 contacts →
	Partial 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 13, 2026
2	Impax Asset Management	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	201-500	331 contacts →
	Indirect 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 13, 2026
3	Principles For Responsible Investment	Strong evidence	London, United KingdomHQ checked Sep 13, 2026	201-500	320 contacts →
	Strong 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 13, 2026
4	Gresham House	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	201-500	227 contacts →
	Indirect 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 13, 2026
5	Generation Investment Management	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	51-200	156 contacts →
	Partial 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 13, 2026
6	Shareaction	Strong evidence	London, United KingdomHQ checked Sep 13, 2026	51-200	109 contacts →
	Strong evidence “ShareAction is an independent charity and an expert on responsible investment.” Source: RevenueBase Database · checked Sep 13, 2026
7	Holtara An Apex Group Company	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	51-200	100 contacts →
	Indirect evidence “Our mission is to positively impact businesses today, for a sustainable tomorrow.” Source: RevenueBase Database · checked Sep 13, 2026
8	Columbia Threadneedle Investments Emea Apac	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	1,001-5,000	96 contacts →
	Partial evidence “At Columbia Threadneedle Investments, we invest to make a difference in your world, and the wider world.” Source: RevenueBase Database · checked Sep 13, 2026
9	Waverton Investment Management	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	201-500	92 contacts →
	Partial 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 13, 2026
10	Sustainable Development Capital, LLP Sdcl	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	74 contacts →
	Partial evidence “Sustainable Development Capital LLP (“SDCL”) is a multi-national investment and financial advisory firm, which specialises in environmental infrastructure.” Source: RevenueBase Database · checked Sep 13, 2026
11	Legal & General Investment Management Lgim	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	1,001-5,000	74 contacts →
	Partial 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 13, 2026
12	Edentree Investment Management	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	51-200	67 contacts →
	Partial evidence “EdenTree is a sustainable investment manager with a strong heritage.” Source: RevenueBase Database · checked Sep 13, 2026
13	River Global Investors RGI	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	51-200	63 contacts →
	Indirect evidence “RIVER GLOBAL HOLDINGS (RGH) WAS ACQUIRED BY LIONTRUST ON 30 JUNE 2026.” Source: RevenueBase Database · checked Sep 13, 2026
14	EQ Investors I B Corp	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	51-200	60 contacts →
	Partial evidence “EQ Investors (EQ) is an employee-owned, multi award-winning, B Corp wealth manager providing ethical financial advice and sustainable investment management services to…” Source: RevenueBase Database · checked Sep 13, 2026
15	Ecofin	Indirect evidence	London, United KingdomHQ checked Sep 13, 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 13, 2026
16	Greenbank	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	51-200	45 contacts →
	Partial evidence “Tailored investment services, delivered sustainably.” Source: RevenueBase Database · checked Sep 13, 2026
17	Troy Asset Management Limited	Indirect evidence	London, United KingdomHQ checked Sep 13, 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 13, 2026
18	Osmosis Investment Management	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	40 contacts →
	Partial 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 13, 2026
19	NET Purpose	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	40 contacts →
	Indirect evidence “Net Purpose is the platform for sustainable and impact investors.” Source: RevenueBase Database · checked Sep 13, 2026
20	Earth Active LTD	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	39 contacts →
	Partial evidence “Earth Active is an award-winning consultancy with a globally experienced team of bespoke ESG advisors and expert specialists that provide investment and risk due diligence in…” Source: RevenueBase Database · checked Sep 13, 2026
21	Tribe Impact Capital	Indirect evidence	London, United KingdomHQ checked Sep 13, 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 13, 2026
22	Deva Capital	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	33 contacts →
	Partial evidence “Our vision is to be an impactful contributor to society, through the highest professional standards and responsible investing, by being a recognized leader in global alternative…” Source: RevenueBase Database · checked Sep 13, 2026
23	Longspur Capital	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	27 contacts →
	Partial evidence “Longspur Capital is a new energy and cleantech specialist offering investment management, corporate finance and investment research.” Source: RevenueBase Database · checked Sep 13, 2026
24	Arch Emerging Markets Partners Limited	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	26 contacts →
	Partial 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 13, 2026
25	Pirc Limited	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	24 contacts →
	Partial evidence “Pensions & Investment Research Consultants Ltd (PIRC) is Europe’s largest independent corporate governance and shareholder advisory consultancy with over 25 years experience in…” 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: socially responsible investment 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 socially responsible investment firms.
Partial evidence: Its own public description names part of socially responsible investment firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name socially responsible investment 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 114 socially responsible investment firms based in London, United Kingdom

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Socially responsible investment firms based in London, United Kingdom at a glance

As of Sep 13, 2026

52.6%Verified-email coverage

9.1%Mobile-number coverage

31.8Average contacts per company

11-50Median size (employees)

61.4%Largest-city concentration · London

Sep 13, 2026Page data refreshed

Companies by employee count

1-10

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 16.0d

1,5110–30

38431–60

961–90

090–180

6180+

Company record updated

Median 58.0d

00–30

1,93731–60

1,11161–90

27490–180

308180+

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 investment 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 “socially responsible investment 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 socially responsible investment 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 socially responsible investment 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, 1,910 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.

Socially responsible investment firms by metro in the United Kingdom

Socially responsible investment firms in London70

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 investment 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 socially responsible investment firms are there based in London, United Kingdom?

RevenueBase identified 114 socially responsible investment 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?

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

Which city has the most socially responsible investment firms?

London leads with 70 headquartered companies, followed by Edinburgh (5) and Beaconsfield (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 1,910 verified decision-maker contacts tracked across these 114 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.