| Name | Deductibility Code |
| Casa of Chautauqua County Inc. | -- |
| Chautauqua County Christian Center Inc. | -- |
| Chautauqua County Jail Chaplaincy Committee Inc. | -- |
| Chautauqua County Volunteer Fire Police Assn | -- |
| Chautauqua County Workers Memorial | -- |
| Chautauqua Home Rehabilitation & Improvement Corp | -- |
| Chautauqua Lake Child Care Center | -- |
| Chautauqua Lake Snowmobile Club | -- |
| Chautauqua Rails to Trails Inc. | -- |
| Jobstart Chautauqua Inc. | -- |
| Mayville Library | -- |
| Mayville Volunteer Fire Co No 1 Inc. | 6 |
| Sea Lion Project Ltd. | -- |