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Cleantech Open is the oldest and largest cleantech startup accelerator program, with the mission to find, fund, and foster entrepreneurs with ideas to solve our greatest environmental and energy challenges.
MassChallenge is a global, zero-equity startup accelerator, founded in Boston, Massachusetts in 2009. MassChallenge is headquartered in Boston's Seaport District in the MassMutual Building, and has additional U.S. locations in Texas and Rhode Island, as well international locations in Israel, Mexico, and Switzerland.
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