Cleantech Open is the largest and oldest cleantech startup accelerator program in the United States, with the mission of finding, funding and nurturing entrepreneurs around the world with ideas to solve environmental and energy challenges. Through this annual program, new clean technology companies are connected with the people and resources that will accelerate their success. The startups selected in the different stages will be eligible for advice from specialized mentors in the sector, as well as prizes starting at $10,000 US dollars.

This call may result from the interest of emerging companies in the area of clean technologies, as well as research centers and academics. Interested parties may submit their applications until February 29 (with an application fee of $30 USD), or until April 14, 2024 (with an application fee of $75 USD).

Interested parties can apply through the following link: The accelerator website is:

Find the Spanish version here.