Accelerator Investors in Clean Energy

AlphaLab is a nationally recognized startup accelerator based in Pittsburgh, supporting early-stage companies across software, hardware, life sciences, and robotics. Founded in 2008 and powered by Innovation Works, AlphaLab provides founders with capital, mentorship, and a structured program to accelerate growth. The platform operates multiple specialized tracks, including AlphaLab (software), AlphaLab Gear (hardware), AlphaLab Health (life sciences), and Robotics Factory, offering tailored support depending on the company’s sector. AlphaLab has played a key role in building Pittsburgh into a leading innovation hub, helping startups move from idea to scalable venture.

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.

Greentown Labs is the world's largest climatetech and energy incubator, operating as a 501(c)(3) nonprofit organization that supports entrepreneurs developing climate solutions. They provide incubation services, membership programs, and resources to startups working across various sectors including agriculture, buildings, electricity, manufacturing, transportation, and resilience adaptation. Their mission centers on catalyzing climate solutions at speed and scale by bringing together entrepreneurs with innovation, corporate leaders with scale, investors with capital, and philanthropists with support. They operate as a community-driven organization with locations in Boston and Houston, fostering collaboration between startups, corporations, and other stakeholders in the climatetech ecosystem. Greentown Labs serves as a critical hub in the climatetech ecosystem, connecting entrepreneurs with the resources, mentorship, and partnerships needed to transform society through energy innovation. Their comprehensive approach to supporting climate entrepreneurs positions them as a key player in addressing the climate challenge through technological innovation and community building.

Unreasonable Group is a Colorado-based international company that partners with growth-stage entrepreneurs solving pressing global challenges through capital, community, and storytelling. They operate a Fellowship program that handpicks and privately invites the world's most compelling solutions, focusing on five key verticals: Energy & Environment, Food & Water, Health, and other sectors aimed at transitioning into a more resilient and regenerative economy. Their mission centers on creating trusted partnerships and moving capital to ensure a better future, believing in the power of business and finance to drive lasting, scalable change. They build trust across growth-stage entrepreneurs, institutions, and investors by channeling exclusive deal-flow to investors and partnering with institutions to discover profit in solving global problems. Unreasonable Group has established itself as a significant force in the impact ecosystem, striving to become the world's most trusted community in service of a more connected and regenerative economy. Their approach of focusing on scaling what works has created a substantial network that operates across multiple countries and industries, demonstrating that reasonable ideas seldom change anything while unreasonable ones drive progress.