| Name | Deductibility Code |
| Adolph R Czepiel Memorial Fund | 4 |
| Albert and Alice Brunalli Foundation | 4 |
| Bread for Life Inc. | -- |
| Buffalo Women | -- |
| Camp Burt Tetlow Foundation Inc. | 4 |
| Central Baptist Church | -- |
| Central Connecticut Senior Health Services Inc. | -- |
| Chris Kelly Memorial Fund | -- |
| Circle of Hope Lymphedema Foundation Inc. | -- |
| Community Residence Inc. | -- |
| Connecticut Association for Higher Education and Disability | -- |
| Connecticut Foundation for Dental Outreach Inc. | -- |
| Connecticut Sikh Association Inc. | -- |
| Connecticut State Dental Foundation Inc. | -- |
| Correctional Education Association Region I Inc. | -- |
| Depaolo Family Foundation Inc. | -- |
| Depaolo Junior High School Parent Teacher Organization Inc. | -- |
| Dirt Dogs Travel Baseball | -- |
| Eleanor & Ray Bradley Foundation | 4 |
| Flanders School Pto | -- |
| Friends of Briarwood College Foundation Incorporated | -- |
| Friends of the Southington Public Library Inc. | -- |
| Gishrei Shalom Jewish Congregation | -- |
| Grace Nursery School | -- |
| Health Assistance Intervention Education Network for Connecticut | -- |
| Justin Wisniewski Firefighters Scholarship Fund Inc. | -- |
| Langdon Foundation | 4 |
| Margaret C Griffin Child Develop Ment Center of Southington Inc. | -- |
| Miss Connecticut Scholarship Corporation | 4 |
| Newcomers and Neighbors Club of Southington | 6 |
| Oak Hill Cemetery Association | 6 |
| Outreach Inc. | -- |
| Parent Teacher Organization Walter A Derynoski Elementary School | -- |
| Phoenix and Consolidated Glass Collectors Club | -- |
| Progression Lacrosse Inc. | -- |
| Ragged Mountain Foundation Inc. | -- |
| Re Thalberg Elementary School Parent Teacher Organization | -- |
| Recovery Wing Inc. | -- |
| Reuben E Thalberg Foundation | 4 |
| Sebastian & Maria Dellavecchia Scholarship Fund | 4 |
| South End Burying Ground Association | 6 |
| Southington Arts Council Inc. | -- |
| Southington Community Theatre Inc. | -- |
| Southington Dog Park Association Inc. | -- |
| Southington Education Foundation Inc. | -- |
| Southington Festival Choir Inc. | -- |
| Southington Land Conservation Trust Inc. | -- |
| Southington Lions Foundation for Giving Inc. | -- |
| Southington Manna Fund Inc. | -- |
| Southington Soccer Club | -- |
| Southington YMCA Inc. | -- |
| The Astronomical Society of Greater Hartford | -- |
| The Mill Foundation for Kids Inc. | -- |
| The Orchards at Southington Inc. | -- |
| The Slason Foundation Inc. | 4 |
| The Southington Midget Football Association Incorporated | -- |
| Twin Angel Foundation Inc. | -- |
| United Way of Southington Inc. | -- |
| Urbin T Kelley School Pto | -- |
| Winton S Filipek Scholarship Fund | -- |
| Yevshan Ukrainian Vocal Ensemble | -- |