The new face of Cleantech innovation

1.2k technology startup entrepreneurs trained
1.2b Dollars Raised
3K clean economy jobs

OVERVIEW

Since 2005 Cleantech Open (CTO) has trained over 1200 early-stage clean technology startup entrepreneurs through its annual business accelerator. A majority 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.

Blog

Global Forum 2018 Highlights

by Jessica Smothermom

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Cleantech Open Announces Winners of 2017 National Accelerator, Global Ideas Competition, and Global Cleantech Innovation Programme

by Emily Lundberg

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CLEANTECH OPEN ANNOUNCES WINNERS AND RUNNERS-UP OF THE 2017 GLOBAL IDEAS COMPETITION

by Emily Lundberg

LOS ANGELES, Calif.—February 2, 2018—The Cleantech Open (www.cleantechopen.org), the world’s largest accelerator of early-stage clean-technology companies,...

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CLEANTECH OPEN NORTHEAST ALUMNI PROFILE: VIKRAM AGGARWAL OF ENERGYSAGE!

by Ian Donnelly

As with any successful business, a company usually offers a product or a service. At Cleantech Open, we offer a service -- a business accelerator, to help get your...

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