18 years after his birth he founded with Johannes Molzahn and Rudolf Jahns the "Gesellschaft der Freunde junger Kunst" (Society of the adorer of young art) which were joined by several distinguished artist as e.g. Lyonel Feininger and Paul Klee.
Maatsch's circle of friends and acquaintances ranked among the aforementioned artists, László Moholy-Nagy, William Wauer and Lothar Schreyer.
Due to financial problems it was not possible for Maatsch to study at the Bauhaus, because of his young family he also had to nourish.
In 1925 he joined the November Group and from this year onwards till 1932 he participated annually in the renowned Große Berliner Kunstausstellung.
In 1927 Herwarth Walden, one of the most important discoverers and promoters of German avant-garde art in the early twentieth century, arranged for Maatsch an exhibition in his prestigious gallery "Der Sturm".