| The Medici Archive Project, Inc. | Matching General Support | 03/26/97 | $50,000 | New York, NY, United States | Public Knowledge |
| Techsoup Global | General Support for NGOsource | 12/10/15 | $300,000 | San Francisco, CA, United States | Public Knowledge |
| Burlington Magazine Foundation, Inc. | Indexing and General Support | 12/15/00 | $641,000 | London, United Kingdom | Public Knowledge |
| Council on Library and Information Resources | General Operational Support IV | 09/13/21 | $1,200,000 | Alexandria, VA, United States | Public Knowledge |
| ARTstor, Inc. | General Support IV | 09/17/05 | $6,500,000 | New York, NY, United States | Public Knowledge |
| Omohundro Institute of Early American History and Culture | General Support for Omohundro Institute | 12/10/15 | $150,000 | Williamsburg, VA, United States | Public Knowledge |
| Council on Library Resources | General Support | 09/30/91 | $900,000 | Washington, DC, United States | Public Knowledge |
| ARTstor, Inc. | General Support | 12/16/02 | $5,000,000 | New York, NY, United States | Public Knowledge |
| Council on Library Resources | General Support | 12/12/94 | $350,000 | Washington, DC, United States | Public Knowledge |
| Council on Library and Information Resources | General Support IV | 03/16/07 | $2,190,000 | Washington, DC, United States | Public Knowledge |
| ARTstor, Inc. | General Support | 10/01/04 | $8,000,000 | New York, NY, United States | Public Knowledge |
| Council on Library and Information Resources | General Support III | 09/17/05 | $750,000 | Washington, DC, United States | Public Knowledge |
| Council on Library and Information Resources | General Support IV | 09/15/11 | $1,458,000 | Washington, DC, United States | Public Knowledge |
| Ithaka Harbors, Inc. | General Support | 12/16/02 | $5,000,000 | New York, NY, United States | Public Knowledge |
| ARTstor, Inc. | General Support | 12/15/03 | $5,000,000 | New York, NY, United States | Public Knowledge |
| Council on Library and Information Resources | General Support | 12/17/04 | $750,000 | Washington, DC, United States | Public Knowledge |
| Council on Library and Information Resources | General Support I | 12/17/99 | $2,600,000 | Washington, DC, United States | Public Knowledge |
| Anthology of Recorded Music, Inc. | General Operations | 03/20/06 | $3,500,000 | Brooklyn, NY, United States | Public Knowledge |
| Council on Library and Information Resources | General Support II | 09/19/03 | $750,000 | Washington, DC, United States | Public Knowledge |
| Council on Library and Information Resources | General Support V | 12/10/09 | $1,400,000 | Washington, DC, United States | Public Knowledge |
| University of Pittsburgh | Geographic Information Systems | 02/02/01 | $25,000 | Pittsburgh, PA, United States | Public Knowledge |
| Association of Research Libraries | German Reseach Libraries Project | 02/13/98 | $35,000 | Washington, DC, United States | Public Knowledge |
| Cornell University | Signale - A Monographic Publication in German Studies | 02/01/10 | $50,000 | Ithaca, NY, United States | Public Knowledge |
| Museum of Fine Arts, Boston | Giza Project | 10/01/04 | $545,000 | Boston, MA, United States | Public Knowledge |
| Museum of Fine Arts, Boston | Giza Project | 12/15/06 | $306,000 | Boston, MA, United States | Public Knowledge |
