Material Mafia is a Berlin-based social enterprise that works at the intersection of waste prevention, reuse and creative production. Operating from the Haus der Statistik at Ott-Braun-Str. 70 in Berlin, the organisation collects and redistributes surplus materials from industry, trade fairs, exhibitions and the creative sector, treating them as resources rather than waste. Its core idea is straightforward: materials that would otherwise be discarded can be brought back into use in new projects.
The organisation’s activities are practical and hands-on. It offers a material fundus for people looking for wood, metals, glass, foams, plastics, paper, cardboard, paints and textiles, with particular relevance for film, stage and design work. Material Mafia also runs workshops, often with Berlin-based and regional partners, and provides advice to companies, initiatives and architectural projects on circular economy approaches and material cycles. In addition, it develops its own design projects and presents them through a small design gallery.
Its public-facing work is closely tied to the Haus der Materialisierung, part of the broader Haus der Statistik initiative in central Berlin. The organisation’s emphasis is local, but its collaborations and advisory work reach beyond the city, especially in the fields of sustainable design and resource-conscious production. The group also uses its platform to host the monthly “K.O.-Markt,” held every third Saturday of the month.
Material Mafia is led by Simone Kellerhoff, listed as CEO in business directories. Publicly available sources place the organisation in Berlin, Germany, and describe it as a grassroots social enterprise focused on material reuse and waste reduction.