Carl co-initiated
CIRCULAR REPUBLIC within
UnternehmerTUM, Europe's largest entrepreneurship hub, where he built and led the textiles platform, establishing one of the most extensive European networks of textile partners and startups. Under his leadership, the initiative launched and managed major
multi-stakeholder projects across
Reuse, ReCommerce, and Recycling, and he played a central role in designing and driving the implementation of
Germany’s textile EPR scheme.