| Name | Deductibility Code |
| Anxiety Disorders Foundation Inc. | -- |
| Apostolate of Our Lady of Good Success | -- |
| Asha International Inc. | -- |
| Audi Car Club of North America | 1 |
| Bostrom Foundation Inc. | 4 |
| Broken Wings Network Inc. | -- |
| Call in on Crime Inc. | -- |
| Capstone Church Inc. | -- |
| Cedar Ridge Foundation Inc. | -- |
| Changing Life Growing You | -- |
| Christmas Spirit Foundation Inc. | 4 |
| Community Housing Initiative Inc. | -- |
| Debbink Family Foundation Inc. | 4 |
| Duane H and Dorothy M Bluemke Charitable Foundation Ltd. | 4 |
| Emil Ewald Foundation Inc. | 4 |
| Faith Baptist Church of Oconomowoc Inc. | -- |
| First Congregational United Church of Oconomowoc Inc. | -- |
| Forensic Association of Computer Technologists | -- |
| Friends of Autism | -- |
| Golden Lake Association Inc. | -- |
| Gone Too Soon Foundation Inc. | -- |
| Greener Oconomowoc Inc. Go | -- |
| Heritage Shooting Inc. | -- |
| Impact School of Oconomowoc Inc. | -- |
| Irish Currach Club of Milwaukee | -- |
| Jim Dowd Memorial Scholarship Fund Inc. | -- |
| Jubilate Chorale Inc. | -- |
| La Belle Yacht Club Sailing School Corporation | -- |
| Lac La Belle Environmental Foundation Inc. | -- |
| Lake Area Club Inc. | -- |
| Lake Area Free Clinic Inc. | -- |
| Lakes Area Ice Associaton Limited | -- |
| Larry & Cindy Susienka Family Foundation Inc. | 4 |
| Living Waters Inc. | 3 |
| Local Government Lawyers Roundtable | -- |
| Lorraine Mulberger Foundation Inc. Joseph Erlichman | 4 |
| Lutheran Homes of Oconomowoc Charitable Foundation Inc. | -- |
| Lutheran Homes of Oconomowoc Inc. | -- |
| Maranatha Renewal Ministries Inc. | -- |
| Memorial Hospital at Oconomowoc Auxiliary Inc. | -- |
| Michael and Beverly Bruno Family Foundation Inc. | 4 |
| Milwaukee Area Chapter of Chorister S Guild | -- |
| Milwaukee Florentine Opera Club Inc. | -- |
| Minett Family Foundation Inc. | 4 |
| Muskellunge Club of Wisconsin | -- |
| Oconomowoc Area Senior Center Inc. | -- |
| Oconomowoc Cooperative Nursery School Inc. | -- |
| Oconomowoc Education Association | -- |
| Oconomowoc Full Gospel Tabernacle Inc. | -- |
| Oconomowoc High School Band Aids Inc. | -- |
| Oconomowoc Historical Society Inc. | -- |
| Oconomowoc Junior Womans Club Inc. | -- |
| Oconomowoc Memorial Hospital Foundation Inc. | -- |
| Oconomowoc Memorial Hospital Inc. | -- |
| Oconomowoc Parents for Baseball Inc. | -- |
| Oconomowoc Public Education Foundation Inc. | -- |
| Oconomowoc Rotary Fdn Inc. | -- |
| Oconomowoc Scholarship Fund | -- |
| Oconomowoc Silver Streak Inc. | -- |
| Oconomowoc Soccer Assoc | -- |
| Oconomowoc Sports Booster Club Inc. Oconomowoc High School | -- |
| Ohs Drama Mamas and Papas Inc. | -- |
| Older Adults Task Force of Oconomowoc Inc. | -- |
| Praydio Com Inc. | -- |
| Restoration Fellowship Inc. | -- |
| Rev-Up Foundation | -- |
| Ridgeback Rescue of the US | -- |
| Roehl Foundation Inc. | 4 |
| Rogers Behavioral Health System Inc. | -- |
| Rogers Memorial Hospital Foundation Inc. | -- |
| Rogers Memorial Hospital Incorporated | -- |
| Ruehlow Family Foundation Inc. | 4 |
| Silver Lake Intermediate School Pto | -- |
| Snappin Ministries Inc. | -- |
| St. Michaels Academy Inc. | -- |
| Stone Bank School Pto Inc. | -- |
| Stone Bank Volunteer Fire | -- |
| Teresas Foundation for Pancreatic Cancer Inc. | -- |
| The Derse Foundation Inc. | 4 |
| The Greater Milwaukee Bridge Association Inc. Scholarship Fund | -- |
| The Michael and Bridget Bruno Family Foundation Inc. | 4 |
| The Race Against Extinction Inc. | -- |
| Theatre of Oconomowec Llc | -- |
| Thomas W Mount Family Foundation | 4 |
| Town & Country Weightlifting Inc. | -- |
| Victor F Braun Foundation Inc. | 4 |
| Vision Unida Incorporate | -- |
| Waukesha Area Symphonic Band Inc. | -- |
| Waukesha County Cb Club Inc. | -- |
| Wildlife in Need Center Ltd. | -- |
| Wisconsin Chapter of the American Concrete Institute | -- |
| Wisconsin Eastern Star Foundation Inc. | 4 |
| YMCA at Pabst Farms Inc. | -- |
| Young Mens Christian Association at Pabst Farms Inc. | 5 |
| Ziemann Foundation Inc. | 4 |
| Zion Endowment Fund Ltd. | -- |