| Name | Deductibility Code |
| A New Chance Foundation Inc. | -- |
| Acting Up | -- |
| Adoption Funding Inc. | -- |
| Agora Community Center | -- |
| Alois Alzheimer Foundation | -- |
| Back 2 Back Ministries Inc. | -- |
| Branches of the Vine | -- |
| Building Blocks Foundation | -- |
| Call of Love Inc. | -- |
| Cancer Crusaders | -- |
| Carepods | -- |
| Cathryn Hosea Hilker Legacy Foundation | 4 |
| Cedar Village Physicians Group Inc. | -- |
| Cherished Cockers Inc. | -- |
| Childrens Choir of Greater Cincinnati | -- |
| Childrens Interstitial Lung Disease Foundation Inc. | -- |
| Childrens Theatre of Mason Inc. | -- |
| Choice Program Inc. | -- |
| Chris and Elizabeth Koob Center for Youth Empowerment Inc. | -- |
| Christian Restoration Association | -- |
| Cincinnati Angels | -- |
| Cincinnati Dirtbags | -- |
| Cincinnatis Finest Lady Ballers | -- |
| Clare Massa Scholarship Fund | -- |
| Comet Skippers Inc. | -- |
| Connections Church Inc. | -- |
| Declare Therapy Center Llc | -- |
| Deerfield Commons Inc. | -- |
| Downtown Mason Association Inc. | -- |
| Eaa Chapter 974 Inc. | -- |
| Errol D Butt Memorial Fund | -- |
| Faith Emergency Services Inc. | -- |
| Farmer Family Foundation | 4 |
| Friends of Cedar Village | -- |
| Friends of the Classic | -- |
| Goodman Family Foundation Inc. | 4 |
| Greater Cincinnati Endowment Foundation for the Jewish Aged | 4 |
| Greater Cincinnati Talent Education Center Inc. | -- |
| Greater Cincinnati Tamil Sangam- gcts | -- |
| Heartland Baptist Church | -- |
| Heritage Church | -- |
| Hope & Freedom Center | -- |
| Hua Xia Chinese School | -- |
| Interfaith Foundation | -- |
| James J and Joan A Gardner Family Foundation | 4 |
| Japan Research Center of Greater Cincinnati | -- |
| Jennifer Leigh Kynkor Foundation | -- |
| Jewish Discovery Center of Ohio | -- |
| Jewish Home of Cincinnati Inc. | -- |
| Jim Toy Ministries Inc. | -- |
| Jvh Memorial Fund Inc. | -- |
| Karen Carns Foundation | -- |
| Kenneth R & Joan L Campbell Fdn | 4 |
| Kingsgate Believers Tabernacle | -- |
| Liberty Bible Academy Association Inc. | -- |
| Life Skills Education Fund | -- |
| Maranatha Baptist Church | -- |
| Mars Hill Ministries Inc. | -- |
| Mason Area Arts Council | -- |
| Mason Band Boosters Inc. | -- |
| Mason Basketball Association Incorporated | -- |
| Mason Chorale Inc. | -- |
| Mason Church of Christ | -- |
| Mason Community Band Inc. | -- |
| Mason Community Players Inc. | -- |
| Mason Comtemporary Chinese School McCs | -- |
| Mason Early Childhood Center Parent-Teacher Organization Meccpt | -- |
| Mason Fast Pitch Softball Club | -- |
| Mason Grizzlies Baseball Organization Inc. | -- |
| Mason Heights Pto | -- |
| Mason Historical Society Inc. | -- |
| Mason Knothole Association | -- |
| Mason Lacrosse Club | -- |
| Mason Middle School Parent Teacher Organization | -- |
| Mason Parks & Recreation Foundation Inc. | -- |
| Mason Scholarship Foundation | -- |
| Mason Schools Foundation | -- |
| Mason Stingers Baseball | -- |
| Mason Tornados | -- |
| Mason Veterans Memorial Fund | -- |
| Mason Youth Football | -- |
| Mason Youth Football Cheerleading | -- |
| Mason Youth Organization | -- |
| Matt Dolan Service Fund Inc. | -- |
| Mishpachah Inc. | -- |
| Nadherny Scholarship Tr | -- |
| North Sycamore Civic Association Inc. | -- |
| Ohio Post 194 Education Corp | -- |
| Onesight | -- |
| Pennsylvania Railroad Technical & Historical Society | -- |
| People Building People | -- |
| Philips Granary | -- |
| Poohs Corner Preschool Inc. | -- |
| Queen City Storm Boosters | -- |
| Roger Hillegas Teaching Ministries Inc. | -- |
| Science Discovery Camp Inc. | -- |
| Self-Sustaining Enterprises Inc. | -- |
| Socialville Baptist Church | -- |
| Southwest Ohio Bible Quiz Association | -- |
| Sparkstream Technology Incubator Inc. | -- |
| Team Greyhound Adoption of Ohio Inc. | -- |
| Team Monley | -- |
| The Craig and Frances Lindner Center of Hope | -- |
| The Leblond Foundation of Makino | 4 |
| Therapy Pets of Greater Cincinnati | -- |
| Tornado Memorial Committee | -- |
| Tri State Athletics | -- |
| United States Matsubayashi-Ryu Karate-Do Federation | -- |
| Ventress Family Foundation | 4 |
| Volunteer Friends for the Mason Library | -- |
| Warren County Soccer Club | -- |
| Wendy Faulkner Memorial Childrens Foundation | -- |
| West Mason Church of Christ of Mason Ohio | -- |
| Western Row Pto | -- |