| Name | Deductibility Code |
| Afc Ferret Rescue Inc. | -- |
| Aliis Inserviendo Consumor Foundation | -- |
| Alpha and Omega Church of God | -- |
| American Behcets Disease Association Inc. | -- |
| Americas Vetdogs the Veterans K9 Corps Inc. | -- |
| Art for Refugees in Transition Inc. | -- |
| Booster Club of Smithtown | -- |
| Branch Brook Parent Teacher Association | -- |
| Brighten Presbyterian Church of N J | -- |
| Buddy Project for Animal Rescue Inc. | -- |
| Caring Hands Foundation Inc. | 4 |
| Chavurat Emet | -- |
| Christian Nursing Hospice Inc. | -- |
| Coming From US Inc. | 4 |
| Community Youth Football Inc. | -- |
| Ddi Foundation Inc. | -- |
| Developmental Disabilities Institute Inc. | -- |
| Environmental Centers of Setauket Smithtown Inc. | -- |
| Epu Institute Inc. | -- |
| Feline Protection and Welfare Society Inc. | -- |
| First Presbyterian Church of Smithtown | -- |
| Foundation for Child and Family Inc. | -- |
| Foundation for Sight and Sound | -- |
| Friends of Caleb Smith Preserve | -- |
| Friends of the Retired and Senior Volunteer Program of Suffolk Count | -- |
| Friends of the Smithtown Special Library District | -- |
| Give US This Day Inc. | 4 |
| Good Deed Foundation Inc. | 4 |
| Grossman-Southern Container Foundation | 4 |
| Guide Dog Foundation for the Blind Inc. | -- |
| Hiding Place Inc. | 4 |
| Hire Stimulus Inc. | -- |
| International Society for Vascular Surgery Inc. | -- |
| Joe Lapchick Character Foundation | -- |
| John Paradise Scholarship Fund Inc. | -- |
| Joni E Gladowsky Breast Cancer Foundation Tr 07252002 | 4 |
| Long Island Baroque Ensemble Inc. | -- |
| Long Island Charities Foundation Inc. | -- |
| Long Island Stroke Association | -- |
| Long Island Traditional Music Association | -- |
| Marilyn Colletta Aml Foundation | -- |
| Massoud and Isabella Eghrari Charitable Foundation | 4 |
| Nanune Presbyterian Church | -- |
| New York State Long Island Society for Parenteral & Enteral Nutrition | -- |
| New York State Rheumatology Society Inc. | -- |
| New York Youth Club Inc. | -- |
| New Yorks Bravest Foundation Inc. | -- |
| Ninety-Nines of Long Island Inc. | -- |
| Ny Rheumatology Network Inc. | -- |
| Nynj Black McDonalds Operators Association Inc. | -- |
| Ocl Properity III East Inc. | -- |
| Ocl Properity III West Inc. | -- |
| Ocl Properties II Inc. | -- |
| Ocl Properties Inc. | -- |
| Ocl Properties IV Inc. | -- |
| Ocl Properties IX Inc. | -- |
| Ocl Properties V Inc. | -- |
| Ocl Properties VI Inc. | -- |
| Ocl Properties VII Inc. | -- |
| Ocl Properties VIII Inc. | -- |
| Ocl Properties X Inc. | -- |
| Ocl Properties XI Inc. | -- |
| Ocl Properties XII Inc. | -- |
| Ocl Properties XIII Inc. | -- |
| Ocl Properties XIV Inc. | -- |
| Options for Community Living Inc. | -- |
| Patrick Dwyer Memorial Scholarship Fund | -- |
| Raynauds Association Inc. | -- |
| Rescue Ink Inc. | -- |
| Research and Education Fund of Suffolk Cty Womens Bus Enterprise | -- |
| Robert L Sweeney Memorial Fund Inc. | -- |
| Scope Education Services | -- |
| Shana Kay Memorial Foundation Inc. | -- |
| Smithtown Charitable Fund Inc. | -- |
| Smithtown Fire Department Inc. | -- |
| Smithtown Gospel Tabernacle Inc. | -- |
| Smithtown Historical Society | -- |
| Smithtown Kickers Inc. | -- |
| Smithtown Library | -- |
| Smithtown Library Foundation Inc. | -- |
| Smithtown Performing Arts Counsel Inc. | -- |
| Smithtown Stitchers Inc. | -- |
| Smithtown Township Arts Council Inc. | -- |
| Smithtown Veterans Youth Program Inc. | -- |
| Society for Lending Comforts to the Sick of the Township of Smithtown | -- |
| Sol Y Sombra Spanish Dance Co Inc. | -- |
| Stars in the Forest Wildlife Rehabilitation Inc. | 4 |
| Stepping Stone Productions Inc. | -- |
| Straus Historical Society Inc. | -- |
| Suffolk County Black History Association Inc. | -- |
| Suffolk County Society for the Prevention of Cruelty to Animals | -- |
| Suffolk County Tennis and Education Foundation Inc. | -- |
| The Foundation for Arthritis Treatment | -- |
| The Gift of Life Inc. of Rotary District 726 | -- |
| Tloa Fund | -- |
| Travelers Resource Center Inc. | -- |
| Uss Gearing Dd-710 Association | 6 |
| Woodland Foundation Inc. | 4 |
| World Messianic Fellowships Inc. Co | -- |
| Y W A M Metro Inc. | -- |
| Youth Experiencing Art Project Inc. | -- |
| Youth Intervention Center Inc. | -- |