Company lists · Data verified August 2026

Top 25 Esg investment firms based in the United Kingdom

Name: Esg investment firms based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 121 companies tracked

There are 121 esg investment firms headquartered in the United Kingdom (RevenueBase, August 2026). RevenueBase tracks 4,888 professional contacts across them, including 2,397 with verified work emails and 316 with mobile numbers. London is the largest hub.

This list covers esg investment firms headquartered in the United Kingdom, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

121Companies

4,888Contacts tracked

2,397Verified emails

316Mobile numbers

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The 25 largest esg investment firms based in the United Kingdom

Ranked by team size

Top 25 of 121 esg investment firms based in the United Kingdom, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Morningstar Sustainalytics	London	1,001-5,000	949	316
2	LA Française	London	501-1,000	641	329
3	Federated Hermes Limited	London	501-1,000	456	284
4	Principles For Responsible Investment	London	201-500	322	222
5	Mirova	London	201-500	319	195
6	Gresham House	Witney	201-500	223	168
7	Generation Investment Management	London	51-200	155	117
8	Shareaction	London	51-200	110	62
9	Columbia Threadneedle Investments Emea Apac	London	1,001-5,000	99	33
10	Holtara An Apex Group Company	London	51-200	98	59
11	Waverton Investment Management	London	201-500	94	56
12	Legal & General Investment Management Lgim	London	1,001-5,000	89	40
13	Edentree Investment Management	London	51-200	65	43
14	River Global Investors RGI	London	51-200	62	38
15	Castlefield	Manchester Manchester	51-200	46	35
16	Greenbank	London	51-200	46	33
17	Gravis	London	51-200	43	38
18	Troy Asset Management Limited	London	11-50	42	19
19	Evenlode Investment	Evenlode	11-50	40	36
20	Earth Active LTD	London	11-50	40	28
21	NET Purpose	London	11-50	40	19
22	Impact Cubed	London London	11-50	39	25
23	Osmosis Investment Management	London	11-50	36	29
24	Tribe Impact Capital	London	11-50	34	24
25	Lathe & CO Wealth Advisers	London	11-50	34	23

Showing 25 of 121 esg investment firms based in the United Kingdom

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Esg investment firms based in the United Kingdom at a glance

As of Aug 28, 2026

11-50Median size (employees)

LondonLargest hub · 83 HQs

316Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

Esg investment firms by metro

Metro	Companies
Esg investment firms in London	83
Esg investment firms in Edinburgh	4
Esg investment firms in London London	2
Esg investment firms in Bristol	2
Esg investment firms in Cambridge	2
Esg investment firms in Liverpool	2
Esg investment firms in Norwich	2

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “esg investment firms”, with match quality audited by blind human judging, and headquartered in the United Kingdom.
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: Contact records re-verify on a rolling cadence; 0 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many esg investment firms are there based in the United Kingdom?

There are 121 esg investment firms headquartered in the United Kingdom as of August 2026 (RevenueBase).

What is the largest company on this list?

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

Which city has the most esg investment firms?

London leads with 83 headquartered companies, followed by Edinburgh (4) and London London (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 2,397 verified decision-maker contacts tracked across these 121 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.