| Name | Address, Zip |
| Lake Mills Club 55 Senior Center | 229 Fremont St, 53551-1126 |
| Rock Lake Activity Center Inc | 229 Fremont St, 53551-1126 |
| Wisconsin Independent Charter School Advocates Inc | 116 E Lake St, 53551-1605 |
| Roos Ranch Animal Sanctuary Corp | N5611 County Road A, 53551-9704 |
| Veterinary Association For Farm Animal Welfare | 871 Pinnacle Dr, 53551-2015 |
| Lake Mills Area Community Foundation Inc | Po Box 33, 53551-0033 |
| Friends Of Aztalan State Park Inc | Po Box 855, 53551-0855 |
| Lake Mills Aztalan Historical Society Inc | Po Box 122, 53551-0122 |
| L-cat Booster Club | 615 Catlin Dr, 53551-1821 |
| Camrock Mtb Inc | 121 S Main St, 53551-1613 |
| Ceferino Vinluan Memorial Foundation Inc | 323 Oakbrook Dr, 53551-1948 |
| Trinity Pines Retirement Center Inc | 326 W Pine St, 53551-1159 |
| Recovery Support Center | 409 College St, 53551-1410 |
| Krueger Charitable Foundation | W7860 Shore Acres Rd, 53551-9754 |
| Heartland Christian Resources Inc | 759 Cherokee Path, 53551-9520 |
| St Vincent De Paul Society Of Lake Mills | 720 E Lake St, 53551-1739 |
| Lake Mills Emergency Medical Servic Es Inc | Po Box 162, 53551-0162 |
| Johnson Family Foundation Inc | N5563 County Road A, 53551-9784 |
| Wisconsin Outlawz Fastpitch Inc | 314 Crestview Ln, 53551-1956 |
| Lake Mills Food Pantry Inc | 720 E Lake St, 53551-1739 |
| Friends Of Forth Park Inc | Po Box 344, 53551-0344 |
| Lakeside Lutheran Foundation Inc | 231 Woodland Beach Rd, 53551-1855 |
| Lake Mills Rotary Foundation Inc | Po Box 103, 53551-0103 |
| Tcat Foundation | 513 E Tyranena Park Rd, 53551-9683 |
| Sydneylauren Tabakin Memorial Fund Inc | 819 S Ferry Dr, 53551-1832 |
| William P Schmeisser Memorial Fund | N6644 Shorewood Hills Rd, 53551-9745 |
| Trails To Tomorrow Inc | 107 W Lake St Apt 3, 53551-1557 |
| Tyranena Youth Sports Organization Inc | W7835 Shore Acres Rd, 53551-9754 |
| Lake Mills Main Street Program Inc | 200 Water St, 53551-1632 |
| Sunrise Reach Incorporated | 121 S Main St, 53551-1613 |
| Remember Me Ranch | N8363 County Road G, 53551-9600 |
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