Amunt started in 2009 as a collaboration between Björn Martenson (1966), Sonja Nagel (1972) and Jan Theissen (1972), with independent offices in Aachen and in Stuttgart. Björn Martenson graduated from the Department of Architecture of the Rheinisch-Westfälischen Technischen Hochschule (RWTH) at Aachen University in 1997. He has been a teaching assistant at the Wuppertal Universität and at the RWTH Aachen University. Sonja Nagel graduated from the Department of Architecture of the Akademie der Bildenden Künste Stuttgart in 2002. She has been a teaching assistant at the Akademie der Bildenden Künste Stuttgart and a visiting professor at the Peter Behrens School of Architecture in Düsseldorf. Jan Theissen studied industrial design in Saarbrücken and Eindhoven and graduated from the Department of Industrial Design of the Hochschule der Bildenden Künste in Saarbrücken in 2000. He also studied architecture at the Pratt Institute in Brooklyn, New York, in 1999 and at the Akademie der Bildenden Künste Stuttgart, where he graduated from the Department of Architecture in 2003. He has been a teaching assistant at the Akademie der Bildenden Künste Stuttgart and a visiting professor at the Peter Behrens School of Architecture in Düsseldorf. Currently he is a visiting professor at the Technische Universität in Darmstadt.

The JustK House in Tübingen was their first joint project. Among other prizes, they have been awarded the Weißenhof-Architekturförderpreis for Young Architects in 2010, the Hugo-Häring-Prize in 2011, and the German Architecture Prize in 2013. Their JustK project won first prize at the international AR-Awards in 2011. Their Schreber project, the renovation and extension of a miner’s house, was presented in the German Pavilion at the 2012 Venice Architecture Biennale as part of the Reduce/Reuse/Recycle exhibition.