| Name | Deductibility Code |
| Child Girl and Woman Lake Property Owners Association | -- |
| Friends of The Margaret Welch Memorial Library of Longville | -- |
| Lake County First Response Team Inc. | -- |
| Longville Area Community Choir | -- |
| Longville Area Community Foundation | -- |
| Longville Historical Society Inc. | -- |
| Longville Lakes Area Snowmobile Club Inc. | -- |
| Longville Lakes Arts Alliance | -- |
| Longville Lakes Clinic Inc. | -- |
| Longville Public Library Foundation Inc. | -- |
| Northern Gospel Mission | -- |
| Yah Inc. | -- |
| Young Mens Christian Association Camp Olson | -- |