Company lists · Data refreshed September 2026

Top 25 Climate solution investors worldwide

Name: Climate solution investors worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 1,510 companies tracked

RevenueBase identified 1,510 climate solution investors worldwide as of September 2026 and tracks 34,420 professional contacts across them, including 12,911 with verified work emails. The United States is the largest market and London the largest hub.

This list covers climate solution investors 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 19, 2026. Country and city lists for climate solution investors 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 19, 2026 86% judged on-target in blind review

1,510Companies

34,420Contacts tracked

12,911Verified emails

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The 25 largest climate solution investors worldwide

Ranked by team size

Top 25 of 1,510 climate solution investors worldwide, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to climate solution investors: 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	Subsea7	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	10001+	12,645 contacts →
	Indirect evidence “Subsea7 makes offshore energy transition possible through the continuous evolution of lower-carbon oil and gas and by enabling the growth of renewables and emerging energy.” Source: RevenueBase Database · checked Sep 19, 2026
2	RENEW	Partial evidence	Gurugram, IndiaHQ checked Sep 19, 2026	1,001-5,000	4,340 contacts →
	Partial evidence “ReNew is a leading decarbonisation solutions provider and the first Indian clean energy company to list on Nasdaq (Nasdaq: RNW).” Source: RevenueBase Database · checked Sep 19, 2026
3	Masdar ABU Dhabi Future Energy Company	Indirect evidence	Abu Dhabi, United Arab EmiratesHQ checked Sep 19, 2026	501-1,000	1,026 contacts →
	Indirect evidence “Established in 2006, Masdar is a global clean energy leader, transforming how the world produces and consumes energy through bold innovation and commercial excellence.” Source: RevenueBase Database · checked Sep 19, 2026
4	South Pole	Partial evidence	Zurich, SwitzerlandHQ checked Sep 19, 2026	501-1,000	811 contacts →
	Partial evidence “South Pole is the world's leading carbon asset developer and climate consultancy.” Source: RevenueBase Database · checked Sep 19, 2026
5	Aquila Capital	Indirect evidence	Hamburg, GermanyHQ checked Sep 19, 2026	201-500	412 contacts →
	Indirect evidence “Aquila Capital is an asset manager specialising in essential investments.” Source: RevenueBase Database · checked Sep 19, 2026
6	Ecosecurities	Strong evidence	Geneva, SwitzerlandHQ checked Sep 19, 2026	51-200	406 contacts →
	Strong evidence “EcoSecurities is a global leader in climate solutions, harnessing the power of nature, technology, and finance to accelerate decarbonisation efforts worldwide.” Source: RevenueBase Database · checked Sep 19, 2026
7	3degrees Group, INC	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 19, 2026	201-500	324 contacts →
	Strong evidence “3Degrees is a leading global climate solutions provider, pioneer of environmental markets, and Certified B Corporation.” Source: RevenueBase Database · checked Sep 19, 2026
8	SCB Group	Strong evidence	Nyon, SwitzerlandHQ checked Sep 19, 2026	51-200	282 contacts →
	Strong evidence “SCB is a low carbon market leader providing bespoke solutions to help customers achieve their climate goals, carbon neutrality and net-zero commitments.” Source: RevenueBase Database · checked Sep 19, 2026
9	Nextchem	Partial evidence	ItalyHQ checked Sep 19, 2026	501-1,000	203 contacts →
	Partial evidence “NEXTCHEM is MAIRE’s company dedicated to Sustainable Technology Solutions.” Source: RevenueBase Database · checked Sep 19, 2026
10	Anew Climate	Strong evidence	Houston, TX, United StatesHQ checked Sep 19, 2026	201-500	200 contacts →
	Strong evidence “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…” Source: RevenueBase Database · checked Sep 19, 2026
11	HASI	Indirect evidence	Annapolis, MD, United StatesHQ checked Sep 19, 2026	51-200	196 contacts →
	Indirect evidence “HASI invests in sustainable infrastructure assets advancing the energy transition.” Source: RevenueBase Database · checked Sep 19, 2026
12	Clean Energy Finance Corporation	Strong evidence	Sydney, AustraliaHQ checked Sep 19, 2026	51-200	168 contacts →
	Strong evidence “The CEFC is Australia’s specialist climate investor, helping cut emissions in the race towards net zero by 2050.” Source: RevenueBase Database · checked Sep 19, 2026
13	Breakthrough Energy	Partial evidence	Kirkland, United StatesHQ checked Sep 19, 2026	51-200	159 contacts →
	Partial evidence “Breakthrough Energy backs companies developing the next generation of clean energy solutions.” Source: RevenueBase Database · checked Sep 19, 2026
14	Cleanchoice Energy	Strong evidence	Washington, DC, United StatesHQ checked Sep 19, 2026	51-200	155 contacts →
	Strong evidence “CleanChoice Energy is a cleantech company that empowers people and businesses to easily access climate solutions.” Source: RevenueBase Database · checked Sep 19, 2026
15	Octopus Energy Generation	Indirect evidence	London, United KingdomHQ checked Sep 19, 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 19, 2026
16	Eiffel Investment Group	Indirect evidence	Paris, FranceHQ checked Sep 19, 2026	51-200	152 contacts →
	Indirect 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 19, 2026
17	Energy Impact Partners	Partial evidence	New York, United StatesHQ checked Sep 19, 2026	51-200	141 contacts →
	Partial evidence “Energy Impact Partners LP (EIP) is a global energy technology investor with a proprietary model designed to drive innovation.” Source: RevenueBase Database · checked Sep 19, 2026
18	Pollination	Partial evidence	London, United KingdomHQ checked Sep 19, 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 19, 2026
19	We Don't Have Time	Strong evidence	Internet, United StatesHQ checked Sep 19, 2026	11-50	137 contacts →
	Strong evidence “We Don’t Have Time is the world’s largest media for climate solutions.” Source: RevenueBase Database · checked Sep 19, 2026
20	ECP Energy Capital Partners	Partial evidence	Summit, NJ, United StatesHQ checked Sep 19, 2026	51-200	123 contacts →
	Partial evidence “ECP (Energy Capital Partners) is an investor in critical infrastructure focused on electrification, decarbonization, reliability and sustainability.” Source: RevenueBase Database · checked Sep 19, 2026
21	OTC Flow	Partial evidence	Amsterdam, NetherlandsHQ checked Sep 19, 2026	51-200	123 contacts →
	Partial evidence “OTC Flow is your partner in achieving net zero emissions, providing customized solutions for your financial-environmental obligations and aspirations.” Source: RevenueBase Database · checked Sep 19, 2026
22	Ambienta	Indirect evidence	Milan, United StatesHQ checked Sep 19, 2026	51-200	120 contacts →
	Indirect evidence “Ambienta is a sustainability-focused European asset manager and a leader in applying environmental sustainability trends to investing.” Source: RevenueBase Database · checked Sep 19, 2026
23	AIP Management	Indirect evidence	København K, DenmarkHQ checked Sep 19, 2026	51-200	115 contacts →
	Indirect evidence “AIP specialises in decarbonisation and energy infrastructure investments that facilitate the energy transition in Europe and North America.” Source: RevenueBase Database · checked Sep 19, 2026
24	Energy Infrastructure Partners	Partial evidence	Zurich, SwitzerlandHQ checked Sep 19, 2026	51-200	111 contacts →
	Partial evidence “A leading investor in the global energy transition, Energy Infrastructure Partners manages assets for institutional investors.” Source: RevenueBase Database · checked Sep 19, 2026
25	Cleancapital	Partial evidence	New York, NY, United StatesHQ checked Sep 19, 2026	51-200	106 contacts →
	Partial evidence “Speed and efficiency are the cornerstones of climate finance.” Source: RevenueBase Database · checked Sep 19, 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: climate solution investors. 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 climate solution investors.
Partial evidence: Its own public description names part of climate solution investors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name climate solution investors. 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 1,510 climate solution investors worldwide

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Climate solution investors worldwide at a glance

As of Sep 19, 2026

37.5%Verified-email coverage

22.8Average contacts per company

1-10Median size (employees)

7.7%Largest-city concentration · London

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

927

11-50

434

51-200

201-500

501-1,000

1,001-5,000

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 climate solution investors, 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 climate solution investors are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “climate solution investors”. 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 climate solution investors), 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 climate solution investors, 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, 12,911 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 19, 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.

Climate solution investors by location

10 lists · largest first

Every Climate solution investors list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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 climate solution investors, 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 climate solution investors are there worldwide?

RevenueBase identified 1,510 climate solution investors 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?

Subsea7, headquartered in London, tops this list with the largest team on record.

Which country has the most climate solution investors?

The United States leads with 300 companies, followed by the United Kingdom (165) and Germany (65). Every climate solution investors list by country and city is linked on this page.

Which city has the most climate solution investors?

London leads with 116 headquartered companies, followed by New York (47) and Singapore (41).

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 12,911 verified decision-maker contacts tracked across these 1,510 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 19, 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.