Taavi Madiberk is Co-Founder and CEO at Skeleton Technologies, a Global Cleantech 100 company and European leader in high-power energy storage for transportation, grid, automotive, and industrial applications. Skeleton has raised over 300 million euros and was named one of the World's Top GreenTech Companies of 2025 by TIME and Statista.

Taavi studied law at the University of Tartu and served as the youngest ever Chairman of the Supervisory Board in a European national railway company, Estonian Railways, from 2012 to 2014. He co-founded Skeleton Technologies in 2009 with Oliver Ahlberg, Dr. Jaan Leis, and Dr. Anti Perkson.

Taavi was named to Forbes 30 Under 30 Europe in 2016 and elected Estonia's Young Leader of the Year. He serves as a member of the European Innovation Council Board and founded the Seeds of Bravery project, directing 20 million euros to support tech startups in Ukraine.

Skeleton opened a 220 million euro SuperFactory near Leipzig in 2025, delivering graphene-based supercapacitors to Siemens, General Electric, and Hitachi Energy. The company's GrapheneGPU technology cuts AI data center energy consumption by up to 45% while boosting computing power by 40%.

Skeleton supplies global OEMs including Siemens, Skoda, and Hitachi, with customers spanning the European Space Agency and Tier 1 automotive manufacturers. The company produces over 4 million supercapacitor cells annually and has secured contracts worth over 30 million euros for rail and grid applications across Europe.