Company lists · Data refreshed September 2026
Top 25 Cleantech venture capital firms worldwide
RevenueBase identified 2,558 cleantech venture capital firms worldwide as of September 2026 and tracks 38,506 professional contacts across them, including 12,607 with verified work emails. The United States is the largest market and London the largest hub.
This list covers cleantech venture capital 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 21, 2026. Country and city lists for cleantech venture capital 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.
The 25 largest cleantech venture capital firms worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 3,017 contacts → | ||||
Indirect evidence “Adani Green Energy Limited (AGEL) is India’s largest renewable energy company playing a vital role in enabling the clean energy transition.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 2 | 1,961 contacts → | ||||
Indirect evidence “Envision Energy is a world-leading green technology company that provides renewable energy solutions for global enterprises, governments, and institutions.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 3 | 1,747 contacts → | ||||
Indirect evidence “Avaada Group is a diversified clean energy conglomerate focused on the global energy transition, providing solutions in renewable power generation, solar PV manufacturing, green…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 4 | 1,099 contacts → | ||||
Indirect evidence “Scatec is a leading renewable energy solutions provider, accelerating access to reliable and affordable clean energy in emerging markets.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 5 | 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 21, 2026Thanks. The Data Team will review it. | |||||
| 6 | 988 contacts → | ||||
Indirect evidence “Na CTG Brasil, trabalhamos por um único propósito: desenvolver o mundo com energia limpa em larga escala.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 7 | 563 contacts → | ||||
Indirect evidence “Sonnedix is a global renewable energy company delivering 100% clean electricity directly to customers through a diversified portfolio of solar, wind, and storage assets.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 8 | 539 contacts → | ||||
Indirect evidence “Palmetto is a leading clean tech company on a mission to accelerate the transition to a clean energy future.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 9 | 515 contacts → | ||||
Indirect evidence “Solar Philippines is Southeast Asia's largest solar company with over employees across numerous project sites.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 10 | 428 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 11 | 397 contacts → | ||||
Indirect evidence “Amplus is Asia's leading distributed clean energy company providing energy solutions to commercial and industrial customers by setting up on-site solar projects (rooftop and…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 12 | 336 contacts → | ||||
Indirect evidence “We're Zenobē Energy and we're on a mission to make clean power accessible.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 13 | 316 contacts → | ||||
Indirect evidence “Arevon is a U.S.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 14 | 316 contacts → | ||||
Indirect evidence “Mainstream Renewable Power is a pure-play renewable energy company, with wind and solar assets across global markets, including Latin America, Africa, and Asia-Pacific.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 15 | 315 contacts → | ||||
Indirect evidence “We are an Argentine-based company focused on the development of comprehensive photovoltaic solar energy projects.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 16 | 277 contacts → | ||||
Indirect evidence “BluPine Energy Private Limited is a renewable energy platform established by private equity funding partners Actis UK to develop and execute 4 GW of utility & C&I scale renewable…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 17 | 269 contacts → | ||||
Indirect evidence “IP Group accelerates the impact of science for a better future.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 18 | 216 contacts → | ||||
Indirect evidence “Anesco is a market leader in renewable energy and energy efficiency.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 19 | 210 contacts → | ||||
Indirect evidence “Founded in 2016, Longroad Energy is a U.S-based energy company focused on developing and operating wind, solar, storage, and data center projects throughout North America.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 20 | 198 contacts → | ||||
Indirect evidence “Gentari, a clean energy solutions company founded by PETRONAS, is focused on delivering the solutions required to put clean energy into action today, to transform how we live…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 21 | 196 contacts → | ||||
Indirect evidence “HASI invests in sustainable infrastructure assets advancing the energy transition.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 22 | 193 contacts → | ||||
Partial evidence “Khosla Ventures invests in companies that are bold, early and impactful.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 23 | 187 contacts → | ||||
Indirect evidence “Nosso propósito é impulsionar a transformação em direção a um futuro renovável e sustentável, trabalhando incansavelmente para desenvolver soluções inovadoras que contribuam para…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 24 | 186 contacts → | ||||
Indirect evidence “Enerjide kendi kendine yeten bir dünya için temiz enerji üretiyoruz, sürdürülebilirlik ilkeleri ve kalkınma amaçları doğrultusunda, sürekli gelişim odaklı çalışarak, etki…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 25 | 181 contacts → | ||||
Indirect evidence “AMEA Power is one of the fastest growing renewable energy companies in the region with a multi gigawatt pipeline of clean energy projects.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
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: cleantech venture capital 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 cleantech venture capital firms.
- Partial evidence
- Its own public description names part of cleantech venture capital firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name cleantech venture capital 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 2,558 cleantech venture capital firms worldwide
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Cleantech venture capital firms worldwide at a glance
As of Sep 21, 2026Companies by employee count
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 cleantech venture capital 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 cleantech venture capital firms are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “cleantech venture capital 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 cleantech venture capital 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 cleantech venture capital 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, 12,607 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 21, 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.
Cleantech venture capital firms by location
20 lists · largest firstEvery Cleantech venture capital firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Cleantech venture capital firms based in the United States614
- Cleantech venture capital firms based in the United Kingdom192
- Cleantech venture capital firms based in India102
- Cleantech venture capital firms based in Germany87
- Cleantech venture capital firms based in Canada67
- Cleantech venture capital firms based in the Netherlands65
- Cleantech venture capital firms based in Australia56
- Cleantech venture capital firms based in Brazil47
- Cleantech venture capital firms based in France44
- Cleantech venture capital firms based in Spain44
- Cleantech venture capital firms based in the United Arab Emirates44
- Cleantech venture capital firms based in Türkiye42
- Cleantech venture capital firms based in Italy41
- Cleantech venture capital firms based in China39
- Cleantech venture capital firms based in Switzerland39
- Cleantech venture capital firms based in Norway37
- Cleantech venture capital firms based in Sweden30
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 cleantech venture capital 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 cleantech venture capital firms are there worldwide?
RevenueBase identified 2,558 cleantech venture capital 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?
Adani Green Energy LTD, headquartered in Worldwide, tops this list with the largest team on record.
Which country has the most cleantech venture capital firms?
The United States leads with 614 companies, followed by the United Kingdom (192) and India (102). Every cleantech venture capital firms list by country and city is linked on this page.
Which city has the most cleantech venture capital firms?
London leads with 130 headquartered companies, followed by New York (62) and San Francisco (47).
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 12,607 verified decision-maker contacts tracked across these 2,558 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 21, 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.