Clean Tech Open (CTO) Archives

Applications Due April 6 for the 2026 Cleantech Open Accelerator

March 18, 2026

April 6 is the deadline for startups to apply to the world’s largest cleantech accelerator program, the Cleantech Open Accelerator! This …

April 1, 2025

April 13 is the deadline for startups to apply to the world’s largest cleantech accelerator program, the Cleantech Open Accelerator! This …

April 3, 2023

April 16 is the deadline for startups to apply to the world’s largest cleantech accelerator program, the Cleantech Open 2023 Accelerator! …

October 16, 2014

The Cleantech Open, a leading business plan competition that provides funding and support for early-stage clean technology startups, will announce …

March 15, 2012

The Cleantech Open Accelerator and Competition is now accepting applications its 2012 program. This business plan competition has awarded more than …