Gerhard Manzl (b.1956), Johann Ritsch (b.1957) and Manfred Sandner (b.1957) studied architecture in Innsbruck and Vienna. In 1992 they established their own office in Innsbruck.

Realizations inter alia: Greenhouse Theatre in the Tower Innsbruck (Manzl with Koeberl and Rainer), residential buildings (renovation of a backyard) in the old town of Innsbruck (Manzl, Sandner), revitalization Schlossergasse in Hall in Tirol (Manzl, Sandner) and the inn Schwarzer Adler (Ritsch, State Price 1996 Tourism and Architecture).