Otto von Troschke

Prorsum AG is an Independent Private Equity/Venture Capital firm founded in 2018 by Otto von Troschke. Prorsum AG is headquartered in Zollikon.

SUSI Partners AG is a Swiss-based investment manager that specializes in sustainable energy infrastructure investments. The private company is based in Zug, CH, and has a global presence of subsidiaries in several regions. The firm has EUR 1.9bn in capital commitments from institutional investors and focuses on private equity and credit opportunities across the energy transition spectrum. The Swiss company's investment strategy includes clean energy generation, energy efficiency measures, and solutions enabling clean energy use. SUSI Partners has a successful track record of more than 140 transactions in over 20 countries to date. The company was founded in 2009 by Otto von Troschke, Tobias Reichmuth. Marco van Daele has been the CEO of the company since 2017.