February 6-10, 2017, San Francisco, CA
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The world’s oldest and largest
cleantech startup accelerator.
Bringing early-stage cleantech acceleration
to emerging economies.
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.
2016 Competitor Spotlight
by Sue Marshall
The Cleantech Open-Midwest Experience
2016 Company: TouchLight
Founder: Swarnav Pujari
February 23, 2017
Finalist Update - San Francisco!
by Steve Webster
Cleantech National Finalists San Fransisco February 7, 2017
Qlean Tech Enterprises
Category: Chemicals & Advanced Materials
Qlean Tech won their...
by Nicole Matter
Dr. Rama Prasad, Teqnizan Inc., 2017 CTO-M Participating Business:
Dr. Rama Prasad is a career technologist who is passionate about commercializing the R&D occurring...
Board Member Congrats
by Steve Webster
Dear Cleantech Open-Midwest Board Members,
I don't usually call out the work of any one board member because each of you has been extraordinarily committed to making...
Building automation systems that make commercial buildings more comfortable and efficient.
Ushering in a new era of computing technology with diamonds.
OEM for national network of indoor hydroponic farms.
Producer of GatorBar, fiber-reinforced Rebar at price parity with steel rebar.