Company lists · Data verified August 2026

Top 25 Esg focused investment firms based in the United Kingdom

Name: Esg focused 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 207 companies tracked

There are 207 esg focused investment firms headquartered in the United Kingdom (RevenueBase, August 2026). RevenueBase tracks 8,483 professional contacts across them, including 2,891 with verified work emails and 598 with mobile numbers. London is the largest hub.

This list covers esg focused 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.

207Companies

8,483Contacts tracked

2,891Verified emails

598Mobile numbers

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The 25 largest esg focused investment firms based in the United Kingdom

Ranked by team size

Top 25 of 207 esg focused 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	Mirova	London	201-500	319	195
5	Gresham House	Witney	201-500	223	168
6	T. Rowe Price UK	London	5,001-10,000	189	124
7	Montagu	London	51-200	159	126
8	Generation Investment Management	London	51-200	155	117
9	Continuum Financial Services LLP	Plymouth	51-200	110	85
10	Columbia Threadneedle Investments Emea Apac	London	1,001-5,000	99	33
11	Holtara An Apex Group Company	London	51-200	98	59
12	Waverton Investment Management	London	201-500	94	56
13	Legal & General Investment Management Lgim	London	1,001-5,000	89	40
14	AKO Capital	London	51-200	80	52
15	Arga Investment Management, LP	City Of London	51-200	79	44
16	Guinness Global Investors	London	51-200	75	55
17	Edentree Investment Management	London	51-200	65	43
18	River Global Investors RGI	London	51-200	62	38
19	Heptagon Capital	London	11-50	52	34
20	Ecofin	London	11-50	51	4
21	Castlefield	Manchester Manchester	51-200	46	35
22	Greenbank	London	51-200	46	33
23	Gravis	London	51-200	43	38
24	Troy Asset Management Limited	London	11-50	42	19
25	Finance Earth	London	11-50	41	34

Showing 25 of 207 esg focused investment firms based in the United Kingdom

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Esg focused investment firms based in the United Kingdom at a glance

As of Aug 28, 2026

1-10Median size (employees)

LondonLargest hub · 144 HQs

598Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

108

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

Esg focused investment firms by metro

Metro	Companies
Esg focused investment firms in London	144
Esg focused investment firms in Edinburgh	7
Esg focused investment firms in London London	3
Esg focused investment firms in Beaconsfield	2
Esg focused investment firms in Liverpool	2
Esg focused investment firms in Glasgow	2
Esg focused investment firms in Bristol	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 focused 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 focused investment firms are there based in the United Kingdom?

There are 207 esg focused 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 focused investment firms?

London leads with 144 headquartered companies, followed by Edinburgh (7) and London London (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 2,891 verified decision-maker contacts tracked across these 207 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.