| Name | Deductibility Code |
| Beatrice K and Woolsey S Conover Foundation Inc. | 4 |
| Cocchiaro Family Foundation | 4 |
| Holderness 2000 Inc. | -- |
| Holderness Afterschool Care and Enrichment Program | -- |
| Robert and Sara Rothschild Fam Foundation Tr | 4 |
| Squam Lakes Association | -- |
| Squam Lakes Conservation Society | -- |
| Squam Lakes Natural Science Center | -- |
| The Friends of the Holderness Free Library | -- |
| The Little Church Theater of Holderness and Center for Creativi | -- |