Company lists · Data refreshed September 2026

Top 25 Environmental impact investment firms worldwide

Name: Environmental impact investment firms worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 4,762 companies tracked

RevenueBase identified 4,762 company matches for environmental impact investment firms worldwide as of September 2026 and tracks 43,841 professional contacts across them, including 17,049 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for environmental impact investment firms worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 28, 2026. Country and city lists for environmental impact investment firms follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 28, 2026 How this list was built

4,762Companies

43,841Contacts tracked

17,049Verified emails

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The 25 largest environmental impact investment firms worldwide

Ranked by team size

Top 25 of 4,762 company matches for environmental impact investment firms worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	STX Group	Exact match	Amsterdam, NetherlandsHQ recorded Sep 28, 2026	501-1,000	502 contacts →
	Exact match “STX Group is a leading global firm in environmental commodities trading and climate finance.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2	ACTIS	Exact match	London, United KingdomHQ recorded Sep 28, 2026	201-500	493 contacts →
	Exact match “Actis is a leading growth market investor in sustainable infrastructure.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
3	Aquila Capital	Exact match	Hamburg, GermanyHQ recorded Sep 28, 2026	201-500	412 contacts →
	Exact match “Aquila Capital is an asset manager specialising in essential investments.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4	Meridiam	Exact match	Paris, FranceHQ recorded Sep 28, 2026	201-500	366 contacts →
	Exact match “Meridiam was founded in 2005 by Thierry Déau, with the belief that the alignment of interests between the public and private sector can provide critical solutions to the…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5	EMM Consulting PTY Limited	Exact match	St Leonards, AustraliaHQ recorded Sep 28, 2026	201-500	361 contacts →
	Exact match “At EMM, we believe that a sustainable future is achievable, and we are dedicated to helping our clients and the community make it a reality.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6	ECOFY	Exact match	Worli, IndiaHQ recorded Sep 28, 2026	51-200	332 contacts →
	Exact match “We are the ones by your side on your journey to going green.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7	Impax Asset Management	Exact match	London, United KingdomHQ recorded Sep 28, 2026	201-500	331 contacts →
	Exact match “Founded in 1998, Impax is a specialist asset manager investing in the opportunities arising from the transition to a more sustainable global economy.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8	Finance In Motion	Exact match	Frankfurt Am Main, GermanyHQ recorded Sep 28, 2026	201-500	318 contacts →
	Exact match “Finance in Motion structures, manages, and advises over €4 billion across 10 funds, all classified as Article 9.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9	Keppel Infrastructure Division	Exact match	SingaporeHQ recorded Sep 28, 2026	501-1,000	309 contacts →
	Exact match “Keppel is a global asset manager and operator with strong expertise in sustainability-related solutions spanning the areas of infrastructure, real estate and connectivity.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10	Swedbank Robur	Exact match	Stockholm, SwedenHQ recorded Sep 28, 2026	201-500	296 contacts →
	Exact match “Swedbank Robur är Sveriges största och en av Nordens ledande kapitalförvaltare.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11	Crossboundary Group	Exact match	Nairobi, KenyaHQ recorded Sep 28, 2026	201-500	280 contacts →
	Exact match “CrossBoundary Group is a mission driven investment firm that unlocks the power of capital for sustainable growth and strong returns in underserved markets.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12	Responsability Investments AG	Exact match	Zurich, SwitzerlandHQ recorded Sep 28, 2026	201-500	278 contacts →
	Exact match “responsAbility is a leading Swiss impact asset manager with deep expertise in private market investing across emerging markets.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13	Advantage Capital	Exact match	New Orleans, LA, United StatesHQ recorded Sep 28, 2026	51-200	245 contacts →
	Exact match “Advantage Capital is an impact investment firm with an emphasis on driving capital to underserved areas – often in partnership with the public sector.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14	Umweltbank AG	Exact match	Nürnberg, GermanyHQ recorded Sep 28, 2026	201-500	240 contacts →
	Exact match “Wer ist die UmweltBank?” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15	Gresham House	Exact match	London, United KingdomHQ recorded Sep 28, 2026	201-500	227 contacts →
	Exact match “Gresham House is a specialist investor focused on delivering financial returns for clients by investing in the global themes shaping our future.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16	Tilad Business Holding	Exact match	Riyadh, Saudi ArabiaHQ recorded Sep 28, 2026	201-500	204 contacts →
	Exact match “Tilad Business Holding is a Saudi-based holding company focused on environmental sustainability and impact-driven sectors.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17	Anew Climate	Exact match	Houston, TX, United StatesHQ recorded Sep 28, 2026	201-500	200 contacts →
	Exact match “Anew Climate is a global leader of diverse climate solutions, bringing innovative products and services to the public and private sectors to help reduce or offset their carbon…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18	HASI	Exact match	Annapolis, MD, United StatesHQ recorded Sep 28, 2026	51-200	196 contacts →
	Exact match “HASI invests in sustainable infrastructure assets advancing the energy transition.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19	Khosla Ventures	Exact match	Menlo Park, CA, United StatesHQ recorded Sep 28, 2026	51-200	193 contacts →
	Exact match “Khosla Ventures invests in companies that are bold, early and impactful.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20	Norfund	Exact match	Oslo, NorwayHQ recorded Sep 28, 2026	51-200	192 contacts →
	Exact match “Norfund is the Norwegian Investment Fund for developing countries, investing to create jobs, improve lives and support the transition to net zero.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21	Clean Energy Finance Corporation	Exact match	Sydney, AustraliaHQ recorded Sep 28, 2026	51-200	168 contacts →
	Exact match “The CEFC is Australia’s specialist climate investor, helping cut emissions in the race towards net zero by 2050.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22	Blueorchard Finance LTD	Exact match	Zurich, SwitzerlandHQ recorded Sep 28, 2026	51-200	161 contacts →
	Exact match “Profit or impact?” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23	Breakthrough Energy	Exact match	Kirkland, United StatesHQ recorded Sep 28, 2026	51-200	159 contacts →
	Exact match “Breakthrough Energy backs companies developing the next generation of clean energy solutions.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24	Generation Investment Management	Exact match	London, United KingdomHQ recorded Sep 28, 2026	51-200	156 contacts →
	Exact match “Overview Generation was established in 2004 as an independent, private, investment management partnership with offices in London and San Francisco.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25	R3	Exact match	Paris, FranceHQ recorded Sep 28, 2026	51-200	155 contacts →
	Exact match “Expert de la réconciliation entre économie et écologie, R3 fait basculer les entreprises vers une transition environnementale et sociétale réellement performante.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “environmental impact investment firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 4,762 environmental impact investment firms worldwide

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Environmental impact investment firms worldwide at a glance

As of Sep 28, 2026

38.9%Verified-email coverage

9.2Average contacts per company

1-10Median size (employees)

6.6%Largest-city concentration · London

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

3,116

11-50

1,253

51-200

257

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency is reported on each country list linked below.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
Coverage: Every country. Country and city lists for environmental impact investment firms are linked below.
What qualifies: Company records worldwide whose business descriptions match “environmental impact investment firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 17,049 professional contacts with verified work emails across the full matched dataset. 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.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Environmental impact investment firms by location

42 lists · largest first

Every Environmental impact investment firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “environmental impact investment firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many environmental impact investment firms are there worldwide?

RevenueBase identified 4,762 company matches for environmental impact investment firms worldwide as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

STX Group tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most environmental impact investment firms?

The United States leads with 984 companies, followed by the United Kingdom (429) and Germany (182). Every environmental impact investment firms list by country and city is linked on this page.

Which city has the most environmental impact investment firms?

London leads with 313 company records, followed by New York (150) and Paris (111).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 17,049 professional contacts with verified work emails tracked across these 4,762 companies; direct dials are available where recorded.

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 SmartSearch, 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.