Christoph Ostermann

Christoph Ostermann is a seasoned entrepreneur and executive, currently serving as CEO and Co-Founder of green flexibility since January 2024 and holding the position of CEO and Founder at Green Fortress GmbH since November 2010. With a significant role at 1KOMMA5° as a Vice Chairman and Member of the Advisory Board since January 2022, Ostermann also serves as Chairman of the Supervisory Board at ESFORIN SE and has held various advisory roles, including Chairman of the Advisory Board at Numbat.Energy and envelio, and Board Member of the Austrian Seedfinancing Program. Christoph's experience includes a longstanding history with sonnen GmbH, where Ostermann was Managing Director and Co-Founder until January 2021. Ostermann holds a degree in Business Administration from the University of Bayreuth, earned between 1992 and 1997.