# Top 50 Renewable Energy Startup Investors in United States in May 2026

## Clean Energy Venture Group
- Type: VC Fund
- Location: Brookline, Massachusetts, United States
- Relevant deals: 17
- Stages: Series A, Seed
- Focus: Energy, Renewable Energy, Manufacturing

CEVG is an angel investor collective that invest in and mentors early-stage cleantech and climatetech startups across North America.

## Congruent Ventures
- Type: VC Fund
- Location: Oakland, California, United States
- Relevant deals: 16
- Stages: Series A, Seed, Series B
- Focus: Software, Energy, Renewable Energy

Congruent Ventures is a venture capital firm that seeks to invest in Mobility and Urbanization, Energy Transition, Food and Agriculture, and Sustainable Production & Consumption sectors. We look for technology companies that will positively impact our energy and resource consumption. If we see an opportunity to partner with a like-minded teamfocused on scale across hardware, software, or services, we’re interested.

## Clean Energy Ventures
- Type: VC Fund
- Location: Boston, Massachusetts, United States
- Relevant deals: 11
- Stages: Series A, Seed, Convertible Note
- Focus: Energy, Manufacturing, Renewable Energy

Clean Energy Ventures invests in scalable early-stage climate tech startups and clean energy technologies addressing global climate change.

## Breakthrough Energy Ventures
- Type: VC Fund
- Location: Paris, Ile-de-France, France
- Relevant deals: 11
- Stages: Series A, Series B
- Focus: Energy, Renewable Energy, Manufacturing

Focused on developing and deploying the critical climate solutions our world needs to reach net-zero emissions by 2050.

## Khosla Ventures
- Type: VC Fund
- Location: Menlo Park, California, United States
- Relevant deals: 10
- Stages: Series A, Series B, Seed
- Focus: Software, Health Care, Artificial Intelligence

Khosla Ventures invests in companies that are bold, early and impactful. The firm was started in 2004 by Vinod Khosla, co-founder of Sun Microsystems, to provide venture assistance to entrepreneurs. Headquartered in Menlo Park, Calif., Khosla Ventures invests in a range of areas including AI, climate, sustainability, enterprise, consumer, fintech,digital health, medtech and diagnostics, therapeutics and frontier technology.

## Third Sphere
- Type: VC Fund
- Location: Brooklyn, New York, United States
- Relevant deals: 8
- Stages: Seed, Pre-Seed, Convertible Note
- Focus: Software, Real Estate, Transportation

Early-stage fund focused on rapid, scalable climate action and targeting outsized impact and outsized returns.

## Lowercarbon Capital
- Type: VC Fund
- Location: New York, New York, United States
- Relevant deals: 7
- Stages: Seed, Series A
- Focus: Biotechnology, Renewable Energy, Energy

Lowercarbon Capital backs kickass companies slashing CO2 emissions, sucking carbon out of the sky, and buying us time to unf**k the planet.

## Threshold
- Type: VC Fund
- Location: Menlo Park, California, United States
- Relevant deals: 7
- Stages: Series B, Series A, Series C
- Focus: Software, Internet, Mobile

Threshold is an early-stage venture capital firm that focuses on a high-conviction investment strategy. The firm partners with entrepreneurs building innovative consumer, enterprise, and healthcare technology companies.
Threshold was founded in 2019 and is based in Menlo Park, California.

## Powerhouse Ventures
- Type: VC Fund
- Location: Oakland, California, United States
- Relevant deals: 7
- Stages: Seed, Series A, Pre-Seed
- Focus: Software, Energy, Solar

Powerhouse Ventures
backs entrepreneurs building the digital infrastructure for rapid decarbonization.

## Energy Impact Partners
- Type: VC Fund
- Location: New York, New York, United States
- Relevant deals: 7
- Stages: Series A, Series B, Series C
- Focus: Software, Energy, Renewable Energy

Energy Impact Partners (EIP) is a collaborative strategic investment firm that invests in companies optimizing energy consumption and improving sustainable energy generation. Through close collaboration with its strategic investor base, EIP seeks to bring the best companies, buying power and vision in the industry to bear on the emerging energy landscape.

## Element 8
- Type: VC Fund
- Location: Seattle, Washington, United States
- Relevant deals: 6
- Stages: Series A, Seed, Series B
- Focus: Renewable Energy, Energy, Solar

Element 8 is an investment company that provides capital, guidance, and networking opportunities to early stage cleantech companies.

## Collaborative Fund
- Type: VC Fund
- Location: New York, New York, United States
- Relevant deals: 6
- Stages: Seed, Series A
- Focus: Food and Beverage, Health Care, Software

Collab Fund is a leading source of capital for entrepreneurs pushing the world forward.

## Social Capital
- Type: VC Fund
- Location: Palo Alto, California, United States
- Relevant deals: 6
- Stages: Seed, Series A, Series B
- Focus: Software, FinTech, SaaS

At Social Capital, we make big bets on transformational ideas, technology, and people.

## LaunchPad Venture
- Type: VC Fund
- Location: Newton, Massachusetts, United States
- Relevant deals: 6
- Stages: Seed, Series A
- Focus: Software, Health Care, Biotechnology

Financial & Human Capital Investment in Boston Startups

## My Climate Journey Collective
- Type: VC Fund
- Location: Boston, Massachusetts, United States
- Relevant deals: 6
- Stages: Seed, Series A, Series B
- Focus: Renewable Energy, Energy, Software

My Climate Journey Collective is an early-stage climate tech fund. It seeks to invest in early-stage climate tech startups(primarily pre-seed, seed, and A across a wide range of sectors. Its typical check size is between $100-250k and aims for between 3-5 investments per quarter.

## Good Growth Capital
- Type: VC Fund
- Location: Charleston, South Carolina, United States
- Relevant deals: 6
- Stages: Seed, Convertible Note, Series A
- Focus: Health Care, Information Technology, Software

Good Growth Capital specializes in finding, cultivating, and assessing complex science and deep-tech start-ups. GGC invests in seed-stage and Series A deals through the General Fund family and in pre-seed and seed-stage companies through the Infinite Corridor Fund, which primarily targets MIT-affiliated and transformative science start-ups. GGC ismajority women- and minority-owned and is uniquely positioned geographically in both the Southeast and New England.

## Evergreen Climate Innovations
- Type: VC Fund
- Location: Chicago, Illinois, United States
- Relevant deals: 6
- Stages: Convertible Note, Seed, Grant
- Focus: Energy, Manufacturing, Electronics

Evergreen Climate Innovations supports entrepreneurs and startups that are bringing impactful climate technologies to market.

## Ecosystem Integrity Fund
- Type: VC Fund
- Location: San Francisco, California, United States
- Relevant deals: 5
- Stages: Series A, Series B
- Focus: Energy, Renewable Energy, Solar

The Ecosystem Integrity Fund (“EIF”) is a venture capital firm that invests in early-stage companies contributing to environmental sustainability. It seeks to demonstrate that there is no trade-off between having a positive impact and achieving outstanding financial returns. The movement toward environmental sustainability is making incrementalimprovements to the largest industries in the world. Over the next several decades, the economy will be transformed by this movement.Sustainability is fundamentally about making things better: more efficient, more functional, less toxic, less costly. This is the next phase of the Industrial Revolution.

## Prime Impact Fund
- Type: VC Fund
- Location: Cambridge, Massachusetts, United States
- Relevant deals: 5
- Stages: Seed, Series A, Series B
- Focus: Energy, Renewable Energy, Manufacturing

Prime Impact Fund invests in transformative technology companies with the potential for gigaton-scale climate impact.

## Connecticut Innovations
- Type: VC Fund
- Location: Rocky Hill, Connecticut, United States
- Relevant deals: 5
- Stages: Series A, Seed
- Focus: Health Care, Biotechnology, Software

At Connecticut Innovations, we see venture capital the way you see your business. Like no one else. We invest in innovative biotech, IT, and other industries.

## Blue Bear Capital
- Type: VC Fund
- Location: Beverly Hills, California, United States
- Relevant deals: 5
- Stages: Series A, Seed
- Focus: Software, SaaS, Information Technology

Blue Bear Capital is a venture capital investor supporting companies that apply AI and data-driven technologies to energy infrastructures. The firm specializes in the fields of venture capital, financial services, and clean energy investments.
It was founded in 2016 and headquartered in Beverly Hills, California.

## Ulu Ventures
- Type: VC Fund
- Location: Palo Alto, California, United States
- Relevant deals: 5
- Stages: Seed, Series A
- Focus: Software, Financial Services, Information Technology

With deep connections to Stanford and Silicon Valley, Ulu Ventures is a venture capital firm that actively seeks and funds women and diverse founder teams.

## WindSail Capital Group
- Type: VC Fund
- Location: Boston, Massachusetts, United States
- Relevant deals: 5
- Stages: Debt Financing, Seed
- Focus: Energy, Software, Renewable Energy

Growth Capital for the Clean Economy

## Massachusetts Clean Energy Center
- Type: VC Fund
- Location: Boston, Massachusetts, United States
- Relevant deals: 5
- Stages: Grant, Series A, Seed
- Focus: Energy, Renewable Energy, Software

The Massachusetts Clean Energy Center (MassCEC) is dedicated to accelerating the success of clean energy development and implementation—while creating high-quality jobs and long-term economic growth in Massachusetts. MassCEC is the first state agency in the nation dedicated solely to facilitating the development of the clean energy industry. We areled by people who bring knowledge, experience and an entrepreneurial attitude to help clean energy companies take full advantage of all the state’s unique assets, to help accelerate the development of renewable energy generation projects, and to help develop a workforce that is ready to roll up its sleeves to ensure Massachusetts’ place as a national and global clean energy hub.

## Chrysalix Venture Capital
- Type: VC Fund
- Location: Vancouver, British Columbia, Canada
- Relevant deals: 5
- Stages: Series B, Series A
- Focus: Energy, Manufacturing, CleanTech

Leading global venture capital fund that invests in resource intensive industries across North America and Europe.

## Union Square Ventures
- Type: VC Fund
- Location: New York, New York, United States
- Relevant deals: 5
- Stages: Series A, Series B, Series C
- Focus: Software, Financial Services, FinTech

Union Square Ventures is a venture capital firm based in New York City.

## Version One Ventures
- Type: VC Fund
- Location: Vancouver, British Columbia, Canada
- Relevant deals: 5
- Stages: Seed, Series A, Series B
- Focus: Software, Internet, Blockchain

Version One Ventures is an early-stage venture fund investing in the next generation of mission-driven founders.

## TDK Ventures
- Type: VC Fund
- Location: San Jose, California, United States
- Relevant deals: 5
- Stages: Series A, Series B
- Focus: Manufacturing, Renewable Energy, Semiconductor

TDK Ventures is a technology-focused venture fund based in San Jose, California. We invest globally in Seed to B-round startups that leverage fundamental material science to unlock an attractive and sustainable future for the world. We believe in a sustainable world where digital and energy transformation will improve billions of lives for thebetter. Our mission is to help accelerate learnings and contributions to society, investing in start-ups with similar idealism. We aim to find meaningful opportunities in early-stage technology, especially in Health & Wellness, next Generation Transportation, Robotics & Industrial, Mixed Reality, and the wider IoT market segments. Dielectrics, magnetics, MEMS, neuro-electricals, organic materials, piezoelectrics, semiconductors, and many other types of materials, TDK Ventures is looking for the hardest problems where we have a proven track record of solving since 1935 and are passionate to continue solving these challenges together with our global innovation partners.

## PRIME Coalition
- Type: VC Fund
- Location: Cambridge, Massachusetts, United States
- Relevant deals: 4
- Stages: Seed, Grant, Series A
- Focus: Energy, Renewable Energy, Manufacturing

PRIME Coalition is a 501(c)(3) public charity

## Jackson Moses
- Type: Angel
- Location: Palo Alto, California, United States
- Relevant deals: 4
- Stages: Pre-Seed, Seed, Series A
- Focus: Aerospace, Artificial Intelligence, Government

A proven serial entrepreneur and early defense tech investor, Jackson Moses currently serves as the Founder and Managing Partner of Silent Ventures, an early stage venture firm that invests in exceptional founders building unrivaled aerospace, defense, and national security startups. He also manages Silent Capital, a private syndicate that providesits members exclusive access to leading defense and frontier tech deals. As a serial founder, Jackson’s companies - MainStreet (FinTech) and Spectrum Labs (enterprise AI) - have raised over $120M, employ hundreds of people, and generate $30M+ in ARR.Prior to founding Silent Ventures, Jackson founded and served as VP of Partnerships at MainStreet - the first company to make R&D tax credits accessible to startups and SMBs via industry-leading workflows, integrations, and back-office technologies. As a founding executive, he was responsible for defining GTM strategies, scaling revenue, building a world-class sales organization, and managing business development initiatives. To date, MainStreet has helped 2,000+ startups claim over $150M in savings, collectively extending their runway by centuries.Prior to founding MainStreet, Jackson founded and served as Chairman & CEO of Spectrum Labs - a frontier tech company that develops cutting-edge AI to make digital communities more profitable for Fortune 500 owners, marketers, and their users. Its customers span gaming, dating, and social media, and include Tencent (TCEHY), Pinterest (NYSE: PINS), Grindr (NYSE: GRND), Yik Yak, Wildlife Studios, and The Meet Group, among others.Prior to founding Spectrum Labs, Jackson worked in sales (Lynda.com), customer operations, and executive recruiting at LinkedIn (acquired by Microsoft). Prior to this, he worked as a Market Research Analyst at Cisco where he evaluated industry trends, new investment opportunities, and emerging threats to Cisco’s core business lines.Jackson actively advises startups, venture firms, and family offices on private sector aerospace and defense tech trends, investment opportunities, and capital allocation strategies. He serves as a Venture Partner to several large firms and has sourced deals for 8VC, Airbus Ventures, Tribe Capital, Susa Ventures, Lavrock Ventures, Afore Capital, and defense primes.Jackson holds two B.A. degrees from the University of California, Berkeley where he studied Economics, with a concentration in monetary policy, and Political Science, with a concentration in game theory.Personal: www.jacksonmoses.com | Work: www.silentvc.com | Syndicate: www.silentcapital.vc

## Trinity Capital
- Type: VC Fund
- Location: Phoenix, Arizona, United States
- Relevant deals: 4
- Stages: Debt Financing, Post-IPO Debt
- Focus: Software, Energy, Health Care

Trinity Capital is a leading provider of venture debt financing, a smart financing option for high-growth venture capital-backed startups.

## Climate Capital
- Type: VC Fund
- Location: San Francisco, California, United States
- Relevant deals: 4
- Stages: Seed, Pre-Seed, Series A
- Focus: Sustainability, Manufacturing, Biotechnology

Climate Capital is an investment firm that supports companies that directly or indirectly reduce global greenhouse gas emissions.

## BoxGroup
- Type: VC Fund
- Location: New York, New York, United States
- Relevant deals: 4
- Stages: Seed, Series A, Series B
- Focus: Software, Health Care, Internet

BoxGroup is an early stage investment fund focused on technology companies. Contact Us: hello@boxgroup.com

## Kairos Ventures
- Type: VC Fund
- Location: Beverly Hills, California, United States
- Relevant deals: 4
- Stages: Seed, Series A
- Focus: Biotechnology, Health Care, Therapeutics

Kairos Ventures invests in ideas, patents, and businesses from the top universities and scientists. Kairos Venture Investments works to get science into the hands of applicable companies.Their team possesses an extraordinary passion to have a huge impact on our world through the creation of companies that will improve our lives and that of thegenerations that will follow. They aim to do this by backing the very best scientists, engineers and entrepreneurs and help them transform their knowledge, ideas and discoveries into viable businesses. They expect these companies to have a huge impact on the world and create significant returns for their shareholders.

## Building Ventures
- Type: VC Fund
- Location: Boston, Massachusetts, United States
- Relevant deals: 4
- Stages: Series A, Seed, Series B
- Focus: Software, Construction, Real Estate

Building Ventures is a venture capital firm based in Boston, MA. We partner with Built Environment entrepreneurs and early-stage startups.

## Starlight Ventures
- Type: VC Fund
- Location: Miami, Florida, United States
- Relevant deals: 4
- Stages: Seed, Series A
- Focus: Biotechnology, Energy, Health Care

Starlight Ventures provides early stage capital to the brightest entrepreneurs using science and technology to address humanity's biggest challenges and opportunities.
It was founded in 2017 and is headquartered in Miami, Florida.

## Spero Ventures
- Type: VC Fund
- Location: Redwood City, California, United States
- Relevant deals: 4
- Stages: Series A, Seed
- Focus: Software, Artificial Intelligence, Education

Spero Ventures makes venture investments in the things that make life worth living - wellbeing; sustainability; learning, work, and play.

## Wireframe Ventures
- Type: VC Fund
- Location: Mill Valley, California, United States
- Relevant deals: 4
- Stages: Seed, Series A, Series B
- Focus: Biotechnology, Software, Energy

Seed venture capital for technology founders driven by a mission to build a healthier and more sustainable future.

## NGEN Partners
- Type: VC Fund
- Location: New York, New York, United States
- Relevant deals: 4
- Stages: Series B, Series C
- Focus: Energy, Manufacturing, Renewable Energy

NGEN Partners is an active venture investor committed to backing world class entrepreneurs seeking to change industries through innovation, creativity and the promotion of environmentally sustainable products and services.Founded in 2001, NGEN Partners invests in companies that positively improve the environment and human wellness. We seekentrepreneurs with unique business models and differentiated products and services, capable of rapid growth and sustained profitability. We invest in and alongside these entrepreneurs, helping them grow and sustain category leaders. We invest throughout North America, and have offices in California and New York.

## Applied Ventures
- Type: VC Fund
- Location: Santa Clara, California, United States
- Relevant deals: 4
- Stages: Series B, Series A
- Focus: Manufacturing, Semiconductor, Electronics

Applied Ventures, LLC, is the venture capital arm of Applied Materials, Inc., (NASDAQ: AMAT) investing in innovative startups for over a decade.

## National Grid Partners (NGP)
- Type: VC Fund
- Location: San Francisco, California, United States
- Relevant deals: 4
- Stages: Series B, Series A
- Focus: Artificial Intelligence, Software, SaaS

For entrepreneurs with a provocative vision for energy & IT; NGP is the only utility venture & innovation fund that taps into the global network of National Grid, accelerating companies with investment, innovation, incubation & biz dev; realizing the full potential of energy.

## Braemar Energy Ventures
- Type: VC Fund
- Location: New York, New York, United States
- Relevant deals: 4
- Stages: Series B, Series C, Series A
- Focus: Manufacturing, Energy, Renewable Energy

While energy has been a key to global development since the dawn of the electronic age, the beginning of the new century has seen a tremendous surge in the technology advancements, market activity and the strategic importance of energy around the world. While many companies and investors have sought to take advantage of the tremendous opportunitytoday's energy industry presents, the unique market issues, scientific contributions and complex web of interrelationships require a specialized expertise.Braemar Energy Ventures was formed in 2002 to create a venture capital firm with that expertise. Focused exclusively on technology and communications opportunities in the energy sector, Braemar Energy Ventures has both the industry and operating knowledge to select promising young companies, bring them into the larger energy world and guide them to reach their full potential.The firm's four principals have a long history of successful investments, as well as experience financing and operating companies in the energy sector. Together, they have been responsible for investing in almost 40 energy technology companies, including early stage companies which have grown to become some of the most successful in the sector.Braemar Energy Ventures works with management teams who are skilled in their industry but who can benefit from Braemar's assistance with strategic direction and financing issues. Having worked with many early stage companies, the Braemar Energy Ventures principals understand the challenges that many young companies face and provide invaluable counsel to their portfolio companies on longer-term issues, allowing management to focus on daily operations.

## Global Founders Capital
- Type: VC Fund
- Location: Berlin, Berlin, Germany
- Relevant deals: 4
- Stages: Seed, Series A, Pre-Seed
- Focus: Financial Services, Software, FinTech

Over the past two decades, GFC have backed over five hundred entrepreneurs worldwide, e.g. Facebook, LinkedIn, Slack, and Away Travel.

## Shell Ventures
- Type: VC Fund
- Location: Rijswijk, Zuid-Holland, The Netherlands
- Relevant deals: 4
- Stages: Series A, Series B
- Focus: Energy, Renewable Energy, Software

Shell Ventures invests in companies to speed up development and deployment of new technologies which complement our business.

## Foothill Ventures
- Type: VC Fund
- Location: Los Altos, California, United States
- Relevant deals: 4
- Stages: Seed, Series A
- Focus: Software, Artificial Intelligence, Health Care

Foothill Ventures is a technology-focused venture fund that invests in seed-to-A-round startups in the United States. It is a successor fund to the TEEC Angel Fund.
Foothill Ventures was founded in 2017 and is headquartered in Los Altos, California.

## Angeleno Group
- Type: VC Fund
- Location: Los Angeles, California, United States
- Relevant deals: 4
- Stages: Series B, Series C
- Focus: Manufacturing, Renewable Energy, Solar

Angeleno Group ("AG") is a California-based private equity firm focused on high growth investments in the energy sector. AG makes investments broadly across the energy industry to support innovative, well-managed, rapidly growing companies.Angeleno Group believes that a series of fundamental changes in the energy and environmentalindustries are generating significant private equity opportunities. These changes revolve around three major themes: (1) the need for energy independence, (2) the requirements of a stable and reliable energy infrastructure, and (3) imperatives relating to environmental sustainability. Taken as a whole, these themes affect the entire sector value chain -- from the extraction of natural resources and the conversion of fuels into electricity to the distribution of energy and the way in which power is ultimately consumed. In each case, innovative products and services are emerging as potential solutions to global energy and environmental challenges.

## The Engine
- Type: VC Fund
- Location: Cambridge, Massachusetts, United States
- Relevant deals: 4
- Stages: Seed, Series A, Series B
- Focus: Biotechnology, Health Care, Manufacturing

A home for Tough Tech founders.

## DFJ Mercury
- Type: VC Fund
- Location: Houston, Texas, United States
- Relevant deals: 4
- Stages: Series A, Series B, Debt Financing
- Focus: Software, Biotechnology, Health Care

Early-stage venture fund, parent fund is Draper Fisher Jurvetson

## Kleiner Perkins
- Type: VC Fund
- Location: Menlo Park, California, United States
- Relevant deals: 4
- Stages: Series B, Series A, Series C
- Focus: Software, Health Care, Information Technology

Kleiner Perkins is an American venture capital firm headquartered on Sand Hill Road in Menlo Park in Silicon Valley.

## RockPort Capital
- Type: VC Fund
- Location: Boston, Massachusetts, United States
- Relevant deals: 3
- Stages: Series C, Series B, Series A
- Focus: Energy, Manufacturing, Software

RockPort Capital is a multi-stage venture capital firm that invests in the areas of alternative and traditional energy, mobility, and sustainability. For more than a decade RockPort has partnered with entrepreneurs to foster growth and create value in a broad range of industrial and consumer facing companies whose technologies and products provideinnovative solutions to significant worldwide markets. RockPort has a collaborative approach to investing, deep domain expertise, and insights into all aspects of energy and cleantech. With offices in Boston and Menlo Park, RockPort is globally recognized as being among the largest and most established energy-focused venture capital firms.

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