Top 10 Investors in CleanTech (2025)

• Last Updated: September 08, 2025

Total Investments

2,233

Successful Exits

752

Active Investors

118

Top CleanTech Investment Guide

Introduction to CleanTech Investment Landscape

The CleanTech sector has attracted significant investment attention. In this comprehensive guide, we'll explore the most active and successful investors in CleanTech, based on their investment history, portfolio performance, and industry expertise.

How We Ranked CleanTech Investors

Our rankings are based on several key factors:

  • Number of investments in CleanTech
  • Successful exits in the sector
  • Portfolio company performance
  • Industry expertise and network
  • Overall investment track record
Profile photo of Sustainable Development Technology Canada

Sustainable Development Technology Canada

Ottawa, Ontario, Canada

SDTC fund Canadian cleantech projects and coach the companies that lead them as they move their ground-breaking technologies to market.
CleanTech Venture Capital Government Office
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Profile photo of Rho Ventures

Rho Ventures

New York, New York, United States

Rho Ventures is a private equity firm that invests in high growth companies across multiple sectors.
Financial Services Venture Capital CleanTech Private Equity Firm Venture Capital
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Profile photo of Braemar Energy Ventures

Braemar Energy Ventures

New York, New York, United States

Braemar Energy Ventures is a VC firm that focuses exclusively on technology and communications opportunities in the energy sector.
Venture Capital CleanTech Enterprise Software Venture Capital
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Profile photo of BOM Brabant Ventures

BOM Brabant Ventures

Tilburg, Noord-Brabant, The Netherlands

BOM Brabant Ventures invests in innovative start-up and growth companies, to improve the economic structure in the province of Brabant.
Financial Services Venture Capital Life Science CleanTech Information Technology Venture Capital Government Office
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Profile photo of The Westly Group

The Westly Group

Menlo Park, California, United States

The Westly Group is one of the largest venture funds in North America focused on smart energy, transportation, and buildings.
Venture Capital Analytics CleanTech Venture Capital
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Profile photo of Demeter Partners

Demeter Partners

Paris, Ile-de-France, France

Demeter Partners takes capital interests in companies (generally unlisted) in the eco-industries, eco-energies and modern-day hazards
Venture Capital CleanTech Venture Capital
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Profile photo of Limburgse Reconversie Maatschappij

Limburgse Reconversie Maatschappij

Hasselt, Limburg, Belgium

Limburgse Reconversie Maatschappij is a private equity firm financing ICT, media, life sciences, cleantech, and energy companies.
Biotechnology Life Science CleanTech Private Equity Firm Venture Capital
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Profile photo of Catamount Ventures

Catamount Ventures

San Francisco, California, United States

Catamount Ventures focuses on investing in early stage startups. We back world-class entrepreneurs with a plan to change the world through
Venture Capital Education CleanTech Micro VC
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Elemental Excelerator

Honolulu, Hawaii, United States

Elemental Excelerator helps startups change the world, one community at a time.
Food and Beverage Clean Energy Transportation Water Waste Management CleanTech Agriculture Accelerator
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Profile photo of DBL Partners

DBL Partners

San Francisco, California, United States

DBL Partners is an investment venture focused on companies that deliver high venture capital returns and economic benefits.
Financial Services Venture Capital Health Care Sustainability CleanTech Information Technology Impact Investing Venture Capital
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CleanTech Market Analysis and Trends

Key Findings

  • Average investments per investor: 18.9
  • Most common investor types: Venture Capital, Private Equity Firm, Accelerator, Incubator, Micro VC
  • Success rate (exits/investments): 33.7%

Key Takeaways: CleanTech Investment Landscape

The CleanTech investment landscape continues to evolve and grow. These top investors have demonstrated consistent success in identifying and supporting promising startups in the sector. Whether you're a founder looking for investment or an aspiring investor in CleanTech, these individuals represent some of the most knowledgeable and active participants in the ecosystem.

Connect with Leading CleanTech Investors

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