Estate Hans and Hilde Kaiser
Hiltrud Berger-Felix
Hortensienstraße 14
12203 Berlin
For general enquiries about the work of Hans Kaiser: kontakt@hans-kaiser.de
For enquiries regarding the catalogue raisonné: wvz@hans-kaiser.de
Hans-Kaiser-Kreis e. V.
Buddemühle 1
59514 Welver Schwefe
1st Chairperson: Justus Beyerling , 2nd Chairperson: Bärbel Cöppicus-Wex