Michał Stefanowski has an active design practice. As a professional, he is a member of the INNO+NPD design team. He has created designs for products, street furniture, packaging, wayfinding systems and visual communication. He is the co-author of the City Information System for Warsaw, the Information System for the Royal Castle in Warsaw and the visual identity of the National Bank of Poland, among others. He is the international relations representative of SPFP / the Association of Industrial Designers in Poland (2001-2010 President; 2010-2019 Vice-President) and has acted as Board Member of the BEDA / Bureau of European Design Associations (2010-2016). He is a professor and Head of the Design Department at the Academy of Fine Arts in Warsaw.

His other areas of activities are: writing articles, curating design exhibitions and judging design competitions, such as Good Design (Poland), National Design Award (Slovakia), BIO (Slovenia), Design Management Europe Award (Estonia), IF Award (Germany), among others.