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Cleantech Open Northeast's mission is to improve the environment and grow the climate economy through innovation and entrepreneurship. We work with startups that are solving the world’s most pressing climate challenges. Their solutions address energy generation, energy distribution & storage, energy efficiency, green building, transportation, chemicals & advanced materials, information & communications technologies, agriculture, water, and waste. The region encompasses Connecticut, Delaware, Maine, Maryland, Massachusetts, New Hampshire, New Jersey, New York, Pennsylvania, Rhode Island, Vermont, Virginia, Washington, D.C., and Eastern Canada.
Join us on October 22 in Boston for the Cleantech Open Global Forum, our largest event of the year! https://www.eventbrite.com/e/2026-cleantech-open-global-forum-showcase-awards-tickets-1991717717308 Get inspired by technical founders starting companies that are improving our world and growing the economy! TIME just recognized our accelerator as a national leader! Each year, we enable 30-50 cleantech startups to save 2.5 years as they progress from lab to impact. Funding enables us to: - manage hundreds of volunteer mentors, coaches, judges and speakers - strengthen relationships with hundreds of partners (accelerators, incubators, and universities) - run in-person events such as the 2-day Academy at the beginning of the accelerator (May 28-29, 2026, at Dock 72 in Brooklyn, NY) and the Finals and Global Forum (October 21-22 in Boston, culminating in a Showcase and Awards Celebration at Greentown Labs in Somerville, MA) - award cash prizes ($77,500 in 2026) Connect with us online! https://www.linkedin.com/company/cleantech-open-northeast
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