| Name | Deductibility Code |
| Daybreak Inc. | -- |
| Friends of Horicon International Education Center Inc. | -- |
| Horican Historical Society Inc. | -- |
| Horicon Area Foundation | -- |
| Horicon Athletic Booster Club Inc. | -- |
| Horicon Band Boosters | -- |
| Marsh Moppets Preschool Inc. | -- |
| Pentecostal House of Prayer | -- |
| Star of Life Club | -- |
| Walter W Schoppe Scholarship Fund | -- |