Berlin Startup reverse.fashion Expands Pre-Seed Round for Circular Fashion Tech

Berlin-based startup reverse.fashion has secured a seven-figure extension to its pre-seed funding round from High-Tech Gründerfonds (HTGF). Founded in 2024 as a spin-off from the Technical University of Berlin by Dr. Karsten Pufahl, Paul Doertenbach, and Mario Osterwalder, the company develops AI-powered systems to automate the sorting and digitization of used textiles.

Its platform combines computer vision, machine learning, Digital Product Passport (DPP) integration, and advanced sensing to help textile sorters, recyclers, and circular fashion businesses accurately classify garments. By replacing manual processes, reverse.fashion improves efficiency, reduces waste, and supports sustainability goals.

Built on years of research, the startup’s technology enhances sorting quality and throughput, enabling customers to boost productivity by 40% and revenue by 20%. The new funding will support commercial expansion, including the deployment of its co.sort software and line.sort automated sorting system, aiming to scale textile circularity across the industry.