| Name | Deductibility Code |
| Abner Doubleday Civil War Roundtable | -- |
| Allstadt Hardin Foundation | 4 |
| Bassett Regional Corporation | -- |
| Brookwood School | -- |
| C J Heilig Foundation Inc. | 4 |
| Clara M Mixter Higher Education Tr | -- |
| Clara Welch Thanksgiving Home Inc. | 4 |
| Clark Foundation | 4 |
| Cook Foundation for the Preserv and Beaut Cooperstown & Otsego | -- |
| Cooperstown Art Association | -- |
| Cooperstown Chamber Music Festival Inc. | -- |
| Cooperstown Community Foundation | 4 |
| Cooperstown Concert Series Inc. | -- |
| Cooperstown Conference Foundation | -- |
| Cooperstown Foundation for Excellence in Education Inc. | -- |
| Cooperstown Graduate Association Inc. | -- |
| Cooperstown Rotary Foundation Inc. | -- |
| Cooperstown Youth Baseball Inc. | -- |
| Ecumenical Youth of Cooperstown | -- |
| Family Homes United Giving Strength Inc. | -- |
| Farmers Museum Inc. | -- |
| First Baptist Church of Middlefield | -- |
| Friends of Bassett Inc. | -- |
| Friends of Ccs Music | -- |
| Friends of Glimmerglass State Park Inc. | -- |
| Friends of the Park Inc. | -- |
| Friends of the Village Library of Cooperstown Inc. | -- |
| Glimmerglass Opera Inc. | -- |
| Historical Society of Early American Decoration Inc. | -- |
| Home of Baseball Charitable Tr | -- |
| Home-To-Home Pet Adoption Services Inc. | -- |
| Hyde Hall Inc. | -- |
| Joseph G Kearns and Agnes K Kearns Foundation | 4 |
| Lake and Valley Garden Club | -- |
| Lakewood Cemetery Assn Lakewood Cemetery | 6 |
| Mary Imogene Bassett Hospital | -- |
| National Baseball Hall of Fame and Museum Inc. | -- |
| New York State Historical Association | -- |
| Otsego 2000 Inc. | -- |
| Otsego County Conservation Assn Inc. | -- |
| Otsego County Deputy Sheriffs Benevolent Association | 2,6 |
| Otsego Land Trust Inc. | -- |
| Rachel Walker Charitable Foundation | 3 |
| Susquehanna Society for the Prevention of Cruelty to Animals | -- |
| Templeton Foundation | -- |
| The Smithy-Pioneer Gallery Inc. | -- |
| Thomas Frank Mullet Foundation | 4 |
| Thurston Corporation | -- |
| Town of Middlefield Historical Association | -- |
| Trustees of the Citizenship Ed Fnd of Otsego County Bar Assoc | -- |
| Walter Rich Charitable Foundation | 4 |