Pre-Seed Clean Energy Funders

Ashoka is one of the world’s leading organizations supporting social entrepreneurs. Founded in 1980, Ashoka pioneered the concept of social entrepreneurship and has built a global network of changemakers working to solve some of the world’s most pressing challenges. Through its flagship Ashoka Fellows program, the organization identifies and supports high-impact entrepreneurs with funding, mentorship, and a powerful global network. Ashoka’s broader mission is to create a world where everyone is a changemaker, embedding social innovation across education, business, and civil society.

Avaana Capital is an India-based venture capital firm investing in climate and sustainability solutions across sectors such as energy, mobility, agriculture, and industrial systems. The firm backs early-stage founders building scalable technologies that address climate change while driving economic growth. Co-founded by Anjali Bansal, Avaana combines deep operational expertise with a strong network across government, corporates, and global investors. The firm focuses on enabling the transition to a low-carbon economy through innovation and technology.

Azolla Ventures is a climate-focused venture capital firm that invests in breakthrough technologies designed to avert catastrophic climate change. They partner with visionary founders at the earliest stages of venture development, where both risk and reward are at their highest levels. The fund operates with an impact-first approach, prioritizing investments that hold potential for large-scale greenhouse gas reductions while promoting a more just climate for all. Founded by Prime Coalition and enabled by catalytic capital, Azolla Ventures seeks out bold entrepreneurs from all corners and embraces opportunities that fall outside of traditional venture capital norms. Azolla Ventures plays a crucial role in the climate investment ecosystem by focusing specifically on ventures with the potential for gigaton-scale CO2 equivalent reductions. Their mission-aligned approach and willingness to take on high-risk, high-reward opportunities at the earliest stages helps bridge the gap between innovative climate solutions and the capital needed to scale them globally.

Breakthrough Energy is a climate-focused investment and innovation platform founded by Bill Gates to accelerate the transition to a net-zero economy. The organization supports cutting-edge climate technologies, policy initiatives, research, and investment vehicles designed to reduce greenhouse gas emissions at global scale. Breakthrough Energy works across venture investing, project financing, policy advocacy, and ecosystem development to help scale breakthrough solutions in energy, manufacturing, transportation, agriculture, and industrial decarbonization.

Clean Energy Ventures is a venture capital firm investing in early-stage climate technology companies developing disruptive energy innovations and decarbonization solutions. The firm focuses on backing founders building scalable technologies capable of achieving significant greenhouse gas emissions reductions over the coming decades. With deep expertise in climate investing and commercialization, Clean Energy Ventures works closely with startups advancing breakthroughs across energy, transportation, industrial systems, and climate infrastructure.

Fast Forward is a nonprofit accelerator focused on supporting tech nonprofits building scalable technology solutions for social and environmental impact. Since 2014, the organization has helped mission-driven founders grow technology platforms addressing challenges across education, healthcare, climate, economic opportunity, civic engagement, and digital inclusion. Through accelerator programs, funding, mentorship, strategic partnerships, and ecosystem support, Fast Forward empowers nonprofits using technology and AI to improve lives at scale.

The Grantham Foundation for the Protection of the Environment operates through both philanthropic grants and strategic investments to address climate change and environmental degradation. They focus on protecting and improving the health of the global environment through a dual approach of funding environmental advocacy, applied research into climate solutions, and investing in entrepreneurs building green industries and technologies. Their mission is to protect and conserve the natural environment, with communication and collaboration as top priorities to build widespread public support for preventing catastrophic climate change. The Foundation operates as a 501(c)(3) private foundation with five Grantham family trustees, while also working through The Jeremy and Hannelore Grantham Environmental Trust, a public charity with independent trustees from major environmental organizations including Rare, The Nature Conservancy, World Wildlife Fund US, and Rocky Mountain Institute. Established by Jeremy and Hannelore Grantham, the Foundation plays a significant role in the environmental ecosystem by addressing what they identify as humanity's greatest challenge - climate change and the race against time to avoid existential threats. Their impact matters because they recognize that environmental philanthropic resources are immense compared to available funding, making strategic alliances and targeted investments in both advocacy and technological innovation crucial for preventing catastrophic environmental change.

Katapult is a Norwegian impact investor that accelerates and invests in technology companies solving the world's greatest challenges. They focus on highly scalable impact tech startups, with specific investment programs including Katapult Ocean for startups with positive ocean impact and Katapult Africa for climate-tech startups addressing Africa's pressing challenges. The organization operates through a comprehensive platform approach, combining investment with accelerator programs to strengthen their support for promising impact tech startups. Since 2017, they have conducted 10 flagship accelerator programs and 3 corporate accelerators, while also establishing the Katapult Foundation in 2020 to focus on building the impact community and education around impact investment. Katapult has established significant influence in the global impact investment ecosystem, having invested in 169 companies across 47 different countries. Their platform approach enables domain experts to launch lean and efficient investment vehicles, while initiatives like Katapult Future Fest, Katapult X, and the Nordic Investment Network help build the broader impact investing community and demonstrate their commitment to scaling both profit and impact.

LowCarbon.Earth is a climate-tech accelerator that supports early-stage startups developing innovative solutions to tackle climate change and environmental challenges across the Asia-Pacific region. The program focuses on sustainable goods and services addressing climate change, nature loss, and pollution across core sectors including renewable energy, mobility, air quality, and sustainable agriculture. Launched in collaboration with the United Nations Environment Programme (UNEP) by Massive Earth Foundation, the accelerator operates through intensive bootcamps, workshops, mentorship programs, networking sessions, and investor pitch opportunities. Their mission centers on catalyzing climate action by empowering passionate founders and creating scalable, impactful solutions for a sustainable future. Since inception, LowCarbon.Earth has established itself as a significant force in the Asia-Pacific climate innovation landscape, having evaluated over 3,000 startups and supported more than 180 through their programs. The accelerator has gained recognition through national media coverage including CNBC Awaaz and has built a vibrant community of founders, industry leaders, investors, and VCs who collectively shape climate-tech innovation across the region.

Pay it Forward Ventures (PIF) builds better lives for billions by investing in source-solving rather than symptom-solving. They fund and found ventures that create new paradigms across financial technology, health, energy, and digital infrastructure — and donate 20% of GP profits to philanthropy because they believe in paying it forward.

The Rockefeller Foundation is one of the world’s largest and most influential philanthropic organizations, focused on advancing human well-being through large-scale investments in energy access, food systems, health, economic opportunity, climate resilience, and emerging technologies. Founded in 1913, the foundation partners with governments, nonprofits, corporations, and local communities to tackle systemic global challenges through innovative finance, data, and technology-driven solutions. The foundation is known for making ambitious “big bets” aimed at improving the lives of hundreds of millions of people worldwide, particularly in underserved and economically vulnerable communities.

Shell Foundation is a philanthropic foundation that enables millions of people in Africa and Asia to increase their incomes with clean energy solutions. The foundation focuses on three core people: smallholder farmers, transporters, and micro-entrepreneurs, working to impact their livelihoods through innovative partnerships and catalytic finance. The organization partners with public and private organizations to foster early-stage innovation and scale commercial clean energy solutions. Shell Foundation emphasizes its independence as key to delivering its mission and maintains strategic partnerships, including a unique partnership with the FCDO, to maximize impact across their target regions.

SustainVC is an impact-focused venture capital firm that backs innovative entrepreneurs working toward a sustainable, more equitable, and healthier world. The firm focuses on two primary impact areas: Climate & Sustainability, and Access & Opportunity, targeting companies that can deliver both positive impact and positive returns. Their mission centers on supporting entrepreneurs who share their vision of creating systemic change through market-driven solutions. SustainVC operates with the philosophy that profitable investments and meaningful impact can go hand in hand, seeking to accelerate positive change through strategic capital deployment. The firm plays an important role in the impact investing ecosystem by bridging the gap between traditional venture capital and social impact. With offices in Boston, Durham, and Philadelphia, SustainVC positions itself as a key player in supporting the growth of companies that can address critical societal and environmental challenges while generating strong financial returns.