Since 2005 Cleantech Open (CTO) has trained over 1200 early-stage clean technology startup entrepreneurs through its annual business accelerator. Seventy percent of CTO alumni have survived the merciless technology startup "valley of death" and gone on to raise $1.2 billion and create over 3,000 clean economy jobs.

CTO's one-of-a-kind innovation ecosystem built over the last 11 years of programming spans key cleantech innovation hubs in the U.S. and globally. As a non-profit organization run largely by volunteers, there are many ways to contribute. Join our global network of innovation and together let's forge a clean and sustainable future.

CTO BLOG

Cleantech Open Southeast Recognizes Three Finalists for Innovation in Clean Energy

by Dragana Mendel

What can the Cleantech Open Do For You?

by Dragana Mendel

Five cleantech startups were named finalists at the 2013

by Dragana Mendel

Southeast Sponsors