| Name | Deductibility Code |
| Alliances Bring Caring Connections Inc. | -- |
| Badger Boys State Inc. | -- |
| Best Friends of South Central Wisconsin Inc. | -- |
| Bidwell Foundation | 4 |
| Caledonia Presbyterian Mission Fund Inc. | -- |
| Central Wisconsin Save the Animals Group Inc. | -- |
| Columbia County Crime Stoppers Inc. | -- |
| Columbia County Crisis Pregnancy Center Inc. | -- |
| Columbia County Fair Association Inc. | -- |
| Columbia County Humane Society | 5 |
| Discovery Depot Childrens Museum Inc. | -- |
| Greater Portage Youth Education Foundation Inc. | -- |
| Little School Inc. | -- |
| Main Street Portage Inc. | -- |
| Muir-Woodridge Parent Teacher Organization Inc. | -- |
| National Society of Colonial Dames of America-State of Wisconsin | -- |
| Nortwoods Inc. of Wisconsin | -- |
| Pauquette Adoption Services Inc. | -- |
| Pink Ribbon Angels Incorporated | -- |
| Portage Area Community Charitable Trust | -- |
| Portage Area Historical Society | -- |
| Portage Area Trails Heritage System Incorporated Paths | -- |
| Portage Area United Fund Inc. | -- |
| Portage Center for the Arts Inc. | -- |
| Portage Curling Association Inc. | -- |
| Portage Food Pantry Inc. | -- |
| Portage Hunter Education Association | -- |
| Portage School District No 1 Trust No 364 | -- |
| Renewal Unlimited Inc. | -- |
| River Crossing for Student Success Inc. | -- |
| Silver Lake Cemetery Association | 6 |
| Silver Lake Community Church | -- |
| South Central Respite Inc. | -- |
| St. Mary of the Immaculate Conception Parish School Endowment | -- |
| Swan Lake Association Inc. | -- |
| The Womens Civic League of Portage Inc. | -- |
| Trees for Portage Inc. | -- |
| Triad of Wisconsin Inc. | -- |
| Wisconsin American Legion Foundation Inc. | -- |
| Wisconsin American Legion Museum and Learning Center Inc. | -- |
| Wisconsin Rat Terrier Rescue Inc. | -- |