| Dr. Salomon Grimberg | Dallas | |
| Dominik Valente | Wien 1912 - 2007 Wien | |
| David Saltonstall | Beverly, Massachusetts 1935 - 2022 New York | |
| Estelle M. Konheim | USA, 1920 - 2003 | |
| B. M. Seinfeld | München | |
| Prof. Ferdinando Viglieno-Cossalino | geb. Caluso bei Turin | |
| Klimt-Foundation, Wien | | |
| Christie Manson & Woods Limited | gegründet 1973 in London | |
| Dr. Heribert Hutter | Wien 1926 - 2012 Wien | |
| Chiswick Auctions | | |
| Dr. Helmut Tenner Buch- und Kunstantiquariat | Heidelberg | |
| Dr. Helene Lieser | Wien 1898 - 1962 Wien | |
| Le Claire Kunst | Hamburg | |
| Auction Gallery of the Palm Beaches | 2003 gegründet in West Palm Beach | |
| Emilia Maria Valente | Atina, Italien 1880 - 1970 Glasgow | |
| Katrin Bellinger Kunsthandel | München, founded 1985 | |
| Worthington Gallery Inc. | Chicago | |
| Kurt Fried | Ulm, Deutschland, 1906 - 1981 | |
| Francis C. Reif | Gaya (Kyjov, Mähren) 1914 - 1993 Vancouver | |
| Joe Price | Tulsa, Oklahoma 1929 - 2023 Kalifornien | |
| Art Salon Takahata | Osaka | |
| Dr. Camillo Lill | gest. 1968 in Wien | |
| Sidney and Lois Eskenazi Museum of Art, Indiana University | Bloomington, Indiana | |
| Vincent L. Price Jr. Family Trust | USA | |
