Winter Foundation I Winter Stiftung

The Winter Foundation is a private foundation in Hamburg to support art, culture and social goals. It has built up its own art collection in order to bring together first-class international art and art by emerging artists. The main focus is on collecting art of the 20th and 21st centuries, which is oriented solely towards quality. The foundation is internationally oriented - without borders.

Art Forum Culture Foundation 

Founded in 1996, Artforum Culture Foundation (ACF) is a European non-profit private foundation (NPO) with headquarters in Thessaloniki, Greece, and international offices. Its main tasks are the promotion of art and culture through cooperation with other NPOs, independent projects and artists. The Artforum Culture Foundation aims to maintain cultural dialogue and artistic exchange across all borders in the belief that this serves mutual understanding and tolerance between nations.


ArtExpert is an international network of art experts founded in Greece in 1981. With offices all over the world, ArtExpert acts as an independent network of art historians, archaeologists, art scholars and market experts, working in all fields at the cutting edge of research.