| The Lightstone Group | 1 | Annual Donor List |
| The Louis and Harold Price Foundation | 1 | Annual Donor List |
| The Lubin Family Foundation | 1 | Annual Donor List |
| The Lucy Foundation | 1 | Annual Donor List |
| The Marianne Tyrrasch Fund for Children | 1 | Endowment |
| The Marshall Rose Family Foundation | 1 | Endowment |
| The Max and Victoria Dreyfus Foundation | 1 | Annual Donor List |
| The Megara Foundation | 1 | Annual Donor List |
| The Mogelof Family Charitable Fund | 1 | Annual Donor List |
| The New York Community Trust | 1 | Annual Donor List |
| The Québec Government Office in New York | 1 | Annual Donor List |
| The Rita J. and Stanley H. Kaplan Family Foundation | 1 | Annual Donor List |
| The Segal Group | 1 | Annual Donor List |
| The Shubert Foundation | 1 | Annual Donor List |
| The Simons Foundation | 1 | Annual Donor List |
| The Taft Foundation | 1 | Annual Donor List |
| The Travelers Companies, Inc. | 1 | Annual Donor List |
| The Trust Under the Will of Roberta L. Zuhlke | 1 | Annual Donor List |
| The Vincent Astor Foundation | 1 | Endowment |
| The Walt Disney Company | 1 | Annual Donor List |
| The Walton Family Foundation | 1 | Annual Donor List |
| The Willard T.C. Johnson Foundation, Inc. | 1 | Annual Donor List |
| Theodore H. Barth Foundation | 1 | Annual Donor List |
| Thomas Carella | 1 | Annual Donor List |
| Thomas W. and Diane Smith | 1 | Endowment |
| Thomas and Alice Tisch | 1 | Annual Donor List |
| Thomas and Bonnie Strauss | 1 | Annual Donor List |
| Thompson Family Foundation | 1 | Annual Donor List |
| Tiger Baron Foundation | 1 | Annual Donor List |
| Timothy and Stephanie Ingrassia | 1 | Annual Donor List |
| Tina and Steven Swartz | 1 | Annual Donor List |
| Todd DeGarmo | 1 | Annual Donor List |
| Todd and Sandra Graham | 1 | Annual Donor List |
| Tom and Musa Mayer | 1 | Annual Donor List |
| Tony Johnson | 1 | Annual Donor List |
| Tony Kim | 1 | Annual Donor List |
| Truist Securities | 1 | Annual Donor List |
| Trust under the Will of Eleanor S. Cole | 1 | Endowment |
| Tyler Dickson | 1 | Annual Donor List |
| UBS | 1 | Annual Donor List |
| United Airlines | 1 | Annual Donor List |
| Vanguard Charitable | 1 | Annual Donor List |
| Victoria Siegmund | 1 | Annual Donor List |
| Vincent Indelicato and Kelsy Eagan | 1 | Annual Donor List |
| Virginia Welch | 1 | Annual Donor List |
| W. Curtis Herrmann | 1 | Annual Donor List |
| W. Leslie Duffy | 1 | Annual Donor List |
| Wachtell, Lipton, Rosen and Katz | 1 | Annual Donor List |
| Waldemar Szlezak | 1 | Annual Donor List |
| Walter J. Johnson | 1 | Endowment |