| Australia | Canberra | National Library of Australia | 0 |
| Canada | Vancouver (BC) | BC Libraries Cooperative | 0 |
| Czech Republic | Prague | National Library of Technology | 0 |
| Germany | Berlin | Universitätsbibliothek Technische Universität Berlin | 2 |
| Germany | Göttingen | Gemeinsamer Bibliotheksverbund (GBV Göttingen) | 0 |
| Germany | Hannover | Technische Informationsbibliothek (TIB) | 20 |
| India | Kolkata | National Virtual Library of India | 0 |
| Norway | Bergen | University of Bergen Library | 1 |
| Norway | Oslo | University of Oslo Library | 6 |
| Switzerland | Basel | Information services for Swiss university libraries and Swiss National Library | 20 |
| US | Ann Arbor (MI) | Ann Arbor District Library | 1 |
| US | Evanston (IL) | Northwestern University Libraries | 0 |
| US | New York (NY) | New York Public Library | 0 |
| US | Princeton (NJ) | Princeton University Library | 2 |
| US | San Francisco / Oakland (CA) | California College of the Arts | 0 |
| US | Sleepy Hollow (NY) | Rockefeller Archive Center | 0 |