Competitions that Launch and Grow Cleantech Businesses

The Cleantech Open runs the world’s largest cleantech accelerator. We provide entrepreneurs and technologists the resources needed to launch successful cleantech companies. Our mission is to find, fund and foster entrepreneurs with big ideas that address today’s most urgent energy, environmental and economic challenges.

Since its inception in 2006, the Cleantech Open has awarded over $5 million in cash and services to support cleantech growth companies. The 581 participating companies in the Cleantech Open’s accelerator programs have raised more than $660 million in external capital.

The Cleantech Open's reputation is built on its clean technology Accelerator & Competition, the largest of its kind anywhere in the world. Cleantech Open alumni companies continue to score scientific breakthroughs, funding, deployments and customers.


Get involved!

There are many ways to Get Involved in the Cleantech Open all while solving our biggest energy, environmental and economic challenges.