Singer Pur, Go Guitars, K&K Verlagsanstalt, Maulbronn Monastery Edition, Edition Kloster Maulbronn, Claudia Reinhard, Klaus Wenk, Markus Zapp, Andreas Hirtreiter, Guido Heidloff, Marcus Schmidl, Christian Bergmann, Gunnar Geisse, Gregor Holzapfel, Harald Lillmeyer & Adrian Pereyra