Accelerator Leader Cleantech Open runs the world’s largest cleantech accelerator and has a mission to fund and foster entrepreneurs addressing urgent energy and environmental challenges, signaling strong demand for corporate partnerships, sponsorships, and opportunities to co-invest in portfolio ventures.

Global Network With a network of over 1,000 volunteers and sponsors and a history of cross-sector collaboration, there are rich avenues for enterprise collaboration, pilot programs, and joint go-to-market initiatives with large corporates, utilities, and impact-focused funds.

Strong Recognition Recent accolades including TIME’s America's Best Incubators & Accelerators 2026 enhance credibility and can be leveraged to engage potential sponsors, allowlisting clients, and secure premium visibility in partner programs.

Funding Scale Reported revenue in the range of tens of millions positions Cleantech Open as a credible partner for sponsorships, grants, and program funding opportunities, as well as potential for co-funding accelerator cohorts and impact-investment collaborations.

Tech & Reach A tech stack spanning AWS, WordPress, Vue.js and digital marketing tools indicates operational maturity and provides a pathway to offer technology partnerships, platform integrations, or joint digital campaigns to amplify outreach for portfolio startups.