On May 03, 2022 Prof. Dr. Stefanie Bröring held a keynote on the topic “Start-ups, business models and transformation? – Insights into the O-Werk” at Z.Wan 2022 (Future. Water. Agile. Network.). As part of the event organized by the Competence Center Digital Water Management (KDW), she explained the role of CleanTech for the sustainability transition and showed how the CEIT is making an important contribution to this transformation with research in entrepreneurship and a Business Model Design Lab.