We find, fund, and foster the most promising cleantech startups on the planet.
runs the world’s largest clean technology accelerator program. Since 2006, Cleantech Open has worked with over 1,500 early stage cleantech innovators, helping them develop their business models, engage investors and secure first customers. Each year, over 150 companies participate in one of the Cleantech Open US, Global Climate Innovation or Global Ideas programs. Once a year, the best innovators from across these programs come together in celebration of their progress and impact in creating an inclusive green global economy.
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. Through Cleantech Open's annual business competition and accelerator program, we connect cleantech startups with the people and resources that will accelerate their success, and provide a national platform for public visibility. Learn more about the US Accelerator!
Cleantech Open is a program of Community Partners, a 501c3 nonprofit public benefit organization.