Company lists · Data refreshed September 2026

Top 25 Environmental investment firms worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 3,143 companies tracked

RevenueBase identified 3,143 environmental investment firms worldwide as of September 2026 and tracks 60,842 professional contacts across them, including 15,663 with verified work emails. The United States is the largest market and London the largest hub.

This list covers environmental investment firms worldwide, 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 28, 2026. Country and city lists for environmental investment firms follow the table.

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 28, 2026 86% judged on-target in blind review

3,143Companies

60,842Contacts tracked

15,663Verified emails

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The 25 largest environmental investment firms worldwide

Ranked by team size

Top 25 of 3,143 environmental investment firms worldwide, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to environmental 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	Acciona	Indirect evidence	Madrid, SpainHQ checked Sep 28, 2026	10001+	27,028 contacts →
	Indirect evidence “ACCIONA champions a different way of doing business: Business as Unusual, delivering benefits far beyond the corporate realm.” Source: RevenueBase Database · checked Sep 28, 2026
2	SACYR	Partial evidence	Madrid, SpainHQ checked Sep 28, 2026	10001+	4,227 contacts →
	Partial evidence “We work to ensure society advances toward a sustainable future through the development and management of infrastructures that have a positive social, economic, and environmental…” Source: RevenueBase Database · checked Sep 28, 2026
3	STX Group	Partial evidence	Amsterdam, NetherlandsHQ checked Sep 28, 2026	501-1,000	502 contacts →
	Partial evidence “STX Group is a leading global firm in environmental commodities trading and climate finance.” Source: RevenueBase Database · checked Sep 28, 2026
4	Zukunft Umwelt Gesellschaft ZUG Ggmbh	Indirect evidence	Berlin, GermanyHQ checked Sep 28, 2026	501-1,000	451 contacts →
	Indirect evidence “Wir setzen Impulse für den Schutz von Umwelt, Natur und Klima: Mit diesem Anspruch agiert die Zukunft – Umwelt – Gesellschaft (ZUG) gGmbH seit ihrem Start im Jahr 2018.” Source: RevenueBase Database · checked Sep 28, 2026
5	Meridiam	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	201-500	366 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 28, 2026
6	ECOFY	Indirect evidence	Worli, IndiaHQ checked Sep 28, 2026	51-200	332 contacts →
	Indirect evidence “We are the ones by your side on your journey to going green.” Source: RevenueBase Database · checked Sep 28, 2026
7	Keppel Infrastructure Division	Indirect evidence	SingaporeHQ checked Sep 28, 2026	501-1,000	309 contacts →
	Indirect evidence “Keppel is a global asset manager and operator with strong expertise in sustainability-related solutions spanning the areas of infrastructure, real estate and connectivity.” Source: RevenueBase Database · checked Sep 28, 2026
8	Swedbank Robur	Indirect evidence	Stockholm, SwedenHQ checked Sep 28, 2026	201-500	296 contacts →
	Indirect evidence “Swedbank Robur är Sveriges största och en av Nordens ledande kapitalförvaltare.” Source: RevenueBase Database · checked Sep 28, 2026
9	Crossboundary Group	Partial evidence	Nairobi, KenyaHQ checked Sep 28, 2026	201-500	280 contacts →
	Partial evidence “CrossBoundary Group is a mission driven investment firm that unlocks the power of capital for sustainable growth and strong returns in underserved markets.” Source: RevenueBase Database · checked Sep 28, 2026
10	Gresham House	Indirect evidence	London, United KingdomHQ checked Sep 28, 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 28, 2026
11	Sorigin Group	Indirect evidence	Pune, IndiaHQ checked Sep 28, 2026	201-500	218 contacts →
	Indirect evidence “SORIGIN GROUP is a comprehensive and bespoke 360° services provider that empowers its partners to achieve long-term success through collaboration and technology.” Source: RevenueBase Database · checked Sep 28, 2026
12	Tilad Business Holding	Partial evidence	Riyadh, Saudi ArabiaHQ checked Sep 28, 2026	201-500	204 contacts →
	Partial evidence “Tilad Business Holding is a Saudi-based holding company focused on environmental sustainability and impact-driven sectors.” Source: RevenueBase Database · checked Sep 28, 2026
13	HASI	Indirect evidence	Annapolis, MD, United StatesHQ checked Sep 28, 2026	51-200	196 contacts →
	Indirect evidence “HASI invests in sustainable infrastructure assets advancing the energy transition.” Source: RevenueBase Database · checked Sep 28, 2026
14	Ireda LTD	Indirect evidence	IndiaHQ checked Sep 28, 2026	51-200	195 contacts →
	Indirect evidence “Indian Renewable Energy Development Agency Ltd Indian Renewable Energy Development Agency Limited (IREDA) was established on 11th March, 1987 as a Public limited Government…” Source: RevenueBase Database · checked Sep 28, 2026
15	Stronghold Investment Management	Partial evidence	Dallas, TX, United StatesHQ checked Sep 28, 2026	51-200	180 contacts →
	Partial evidence “Stronghold Investment Management is an investment manager, focused on energy and natural resources, fortified by an experienced operating and technical team.” Source: RevenueBase Database · checked Sep 28, 2026
16	Marathon Capital	Partial evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	51-200	163 contacts →
	Partial evidence “Marathon Capital is the largest independent investment bank dedicated to servicing the clean economy.” Source: RevenueBase Database · checked Sep 28, 2026
17	Campbell Global	Partial evidence	Portland, OR, United StatesHQ checked Sep 28, 2026	201-500	159 contacts →
	Partial evidence “Campbell Global brings more than three decades of experience and leadership to sustainable timberland and natural resource investment management.” Source: RevenueBase Database · checked Sep 28, 2026
18	Generation Investment Management	Partial evidence	London, United KingdomHQ checked Sep 28, 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 28, 2026
19	Octopus Energy Generation	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	153 contacts →
	Indirect evidence “At Octopus Energy Generation, we’re building green power for the future, from large-scale solar to onshore and offshore wind, and innovative initiatives like the Fan Club.” Source: RevenueBase Database · checked Sep 28, 2026
20	Eiffel Investment Group	Partial evidence	Paris, FranceHQ checked Sep 28, 2026	51-200	152 contacts →
	Partial evidence “Eiffel Investment Group is a third-party asset manager with €8 billion under management* with a focus on positive impact strategies and the financing of the ecological and energy…” Source: RevenueBase Database · checked Sep 28, 2026
21	Pollination	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	139 contacts →
	Partial evidence “Pollination is a specialist climate investment and advisory firm, dedicated to accelerating the transition to a net zero, nature positive and resilient future.” Source: RevenueBase Database · checked Sep 28, 2026
22	Invesis	Indirect evidence	Utrecht, NetherlandsHQ checked Sep 28, 2026	51-200	137 contacts →
	Indirect evidence “Invesis transforms lives through sustainable infrastructure.” Source: RevenueBase Database · checked Sep 28, 2026
23	NEW Forests	Partial evidence	North Sydney, AustraliaHQ checked Sep 28, 2026	51-200	135 contacts →
	Partial evidence “New Forests is a global investment manager of nature-based real assets and natural capital strategies, with AUD 10.6 billion (USD 7 billion) in assets under management across over…” Source: RevenueBase Database · checked Sep 28, 2026
24	Climate Fund Managers	Partial evidence	The Hague, NetherlandsHQ checked Sep 28, 2026	51-200	130 contacts →
	Partial evidence “Climate Fund Managers is a climate-focused blended finance investment manager operating in emerging markets across Africa, Asia, and Latin America.” Source: RevenueBase Database · checked Sep 28, 2026
25	Banor SIM	Indirect evidence	Milan, ItalyHQ checked Sep 28, 2026	51-200	128 contacts →
	Indirect evidence “BANOR SIM is an independent company founded over 20 years ago by a group of private investors with the idea of creating a center of excellence for private and institutional…” Source: RevenueBase Database · checked Sep 28, 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: environmental 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 environmental investment firms.
Partial evidence: Its own public description names part of environmental investment firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name environmental 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 3,143 environmental investment firms worldwide

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Environmental investment firms worldwide at a glance

As of Sep 28, 2026

25.7%Verified-email coverage

19.4Average contacts per company

1-10Median size (employees)

6.8%Largest-city concentration · London

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

1,988

11-50

883

51-200

177

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

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among environmental 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.
Coverage: Every country. Country and city lists for environmental investment firms are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “environmental 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 environmental 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 environmental investment firms, and records with no verified work email.
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, 15,663 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 28, 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.

Environmental investment firms by location

28 lists · largest first

Every Environmental 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 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 environmental 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 environmental investment firms are there worldwide?

RevenueBase identified 3,143 environmental investment firms worldwide 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?

Acciona, headquartered in Madrid, tops this list with the largest team on record.

Which country has the most environmental investment firms?

The United States leads with 693 companies, followed by the United Kingdom (285) and Germany (158). Every environmental investment firms list by country and city is linked on this page.

Which city has the most environmental investment firms?

London leads with 215 headquartered companies, followed by New York (98) and Paris (65).

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 15,663 verified decision-maker contacts tracked across these 3,143 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 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 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.