| Name | Deductibility Code |
| Big Day Foundation | 4 |
| Bridges School Early Childhood Program Inc. | -- |
| Brinckerhoff Family Foundation | 4 |
| Catherines Hope Inc. | -- |
| Chansoo & Elisabeth Bittner Joung Foundation | 4 |
| Childrens Day School Inc. | -- |
| Chinese Language School of Connecticut Inc. | -- |
| Christopher P Franco Foundation | 4 |
| Clover Hill School | -- |
| Consultation on Common Texts Inc. | -- |
| Early Childhood Center Inc. at St. Catherines | -- |
| Edward C Werle Family Foundation Inc. | 4 |
| Entre Todos Co | -- |
| Fairfield County Swimming League | -- |
| Faris Foundation | 4 |
| Fight Back Inc. | -- |
| Friends of All Saints Faculty Inc. | -- |
| Greenwich Emergency Medical Service Incorporated | -- |
| Heart Trust Inc. | -- |
| Henry & Birdie Cohen Fund | 4 |
| Hill House Inc. | -- |
| Hope Homes International Inc. | -- |
| Intimate Apparel Square Club Inc. | -- |
| Musica Plenti Inc. | -- |
| Nelaura O Lewis and Richard T Lewis Foundation | 4 |
| Old Stones Foundation Inc. | 4 |
| Rising Group | -- |
| Russel & Deborah Taylor Foundation | 4 |
| Send Children to School Foundation Inc. | -- |
| Shidogakuin Ltd. | -- |
| Smith College Club of Greenwich Smith College Club of Greenwich & | -- |
| The Burnett Family Foundation Inc. | 4 |
| The Denunzio Foundation | 4 |
| The Transportation Association of Greenwich Inc. | -- |
| The Watt Family Foundation | 4 |
| Tim Nesvig Family Foundation | 4 |
| Wernicke Fam Foundation Tr U-A 07132006 | 4 |