The largest 100 political contributions made during the week ending September 18 can be found in the table below, according to the Wisconsin Ethics Commission.
Donations made to political groups or candidates must be disclosed under state law for greater transparency in elections. While Congress created the Federal Election Commission to oversee federal elections in 1974, each state is left to regulate its local elections.
Largest 100 Political Contributions (Week Ending September 18)
| Rank | Contributor | Committee | Amount | Date |
|---|---|---|---|---|
| 1 | Tony for Wisconsin | $20,000 | 09/14/2021 | |
| 1 | Committee to Elect a Republican Senate | $20,000 | 09/16/2021 | |
| 1 | David P. Ludington | People for Rebecca | $20,000 | 09/16/2021 |
| 1 | James H. Schloemer | People for Rebecca | $20,000 | 09/13/2021 |
| 1 | Plumbers Local 75 PAC | Tony for Wisconsin | $20,000 | 09/16/2021 |
| 1 | Ronald Buholzer | People for Rebecca | $20,000 | 09/13/2021 |
| 1 | Terrence R. Wall | People for Rebecca | $20,000 | 09/13/2021 |
| 8 | People for Rebecca | $15,000 | 09/13/2021 | |
| 9 | United Health Group Incorporated, PAC | Committee to Elect a Republican Senate | $12,000 | 09/16/2021 |
| 10 | Weac PAC | Tony for Wisconsin | $11,000 | 09/14/2021 |
| 11 | People for Rebecca | $10,000 | 09/13/2021 | |
| 11 | People for Rebecca | $10,000 | 09/16/2021 | |
| 11 | Committee to Elect a Republican Senate | Republican Party of Wisconsin | $10,000 | 09/13/2021 |
| 11 | Eric Vittinghoff | Tony for Wisconsin | $10,000 | 09/15/2021 |
| 11 | Gail Gonzales | Kaul for Attorney General | $10,000 | 09/13/2021 |
| 11 | Helene Houle | People for Rebecca | $10,000 | 09/15/2021 |
| 11 | Richard Clack | People for Rebecca | $10,000 | 09/15/2021 |
| 18 | Assembly Democratic Camp Community | Democratic Party of Wisconsin | $5,833 | 09/14/2021 |
| 19 | Tony for Wisconsin | $5,000 | 09/12/2021 | |
| 19 | People for Rebecca | $5,000 | 09/15/2021 | |
| 19 | People for Rebecca | $5,000 | 09/16/2021 | |
| 19 | Anthony Theodore | Tony for Wisconsin | $5,000 | 09/15/2021 |
| 19 | Ariel Shibilski | People for Rebecca | $5,000 | 09/13/2021 |
| 19 | Brian J. Ewald | People for Rebecca | $5,000 | 09/16/2021 |
| 19 | Diane Zore | People for Rebecca | $5,000 | 09/13/2021 |
| 19 | Robert E. Toonen | People for Rebecca | $5,000 | 09/18/2021 |
| 19 | Stewart Wangard | People for Rebecca | $5,000 | 09/18/2021 |
| 19 | Toby Marcovich | Tony for Wisconsin | $5,000 | 09/12/2021 |
| 29 | People for Rebecca | $4,000 | 09/13/2021 | |
| 29 | American Beverage Association | Committee to Elect a Republican Senate | $4,000 | 09/16/2021 |
| 29 | Fonepac | Committee to Elect a Republican Senate | $4,000 | 09/16/2021 |
| 29 | WI Insurance Alliance | Committee to Elect a Republican Senate | $4,000 | 09/16/2021 |
| 33 | Committee to Elect a Republican Senate | $3,210 | 09/16/2021 | |
| 34 | Committee to Elect a Republican Senate | $2,667 | 09/16/2021 | |
| 35 | Tony for Wisconsin | $2,500 | 09/12/2021 | |
| 35 | Tony for Wisconsin | $2,500 | 09/15/2021 | |
| 35 | Committee to Elect a Republican Senate | $2,500 | 09/16/2021 | |
| 35 | People for Rebecca | $2,500 | 09/16/2021 | |
| 35 | David J. Quade | People for Rebecca | $2,500 | 09/16/2021 |
| 35 | Debra Shore | Tony for Wisconsin | $2,500 | 09/12/2021 |
| 35 | Helen Johnson-Leipold | People for Rebecca | $2,500 | 09/13/2021 |
| 35 | Peter Ogden | People for Rebecca | $2,500 | 09/13/2021 |
| 35 | Rosalie Schnick | Tony for Wisconsin | $2,500 | 09/12/2021 |
| 44 | Republican Party-Eau Claire County | $2,000 | 09/12/2021 | |
| 44 | Drink Local Wisconsin | Wisconsin Beer | $2,000 | 09/12/2021 |
| 44 | Jim Berg | People for Rebecca | $2,000 | 09/18/2021 |
| 44 | Joel Hazzard | Republican Party-Eau Claire County | $2,000 | 09/13/2021 |
| 44 | Roger L. Shimon | People for Rebecca | $2,000 | 09/18/2021 |
| 44 | Union Pacific Corporation Fund for Effective Gover | Committee to Elect a Republican Senate | $2,000 | 09/16/2021 |
| 44 | Wisconsin Credit Union Legislative Action Fund | Committee to Elect a Republican Senate | $2,000 | 09/16/2021 |
| 51 | Republican Party of Outagamie County | $1,761 | 09/17/2021 | |
| 52 | Gary Warmington | Wisconsin Beer Distributors PAC | $1,680 | 09/14/2021 |
| 53 | Committee to Elect a Republican Senate | $1,500 | 09/16/2021 | |
| 53 | Louise Schoggen | Tony for Wisconsin | $1,500 | 09/12/2021 |
| 53 | Wisconsin Beer Distributors PAC | Assembly Democratic Camp Comm | $1,500 | 09/13/2021 |
| 56 | Committee to Elect a Republican Senate | $1,333 | 09/16/2021 | |
| 57 | Friends of Alberta Darling | $1,250 | 09/15/2021 | |
| 57 | Beverly Greenberg | Friends of Alberta Darling | $1,250 | 09/15/2021 |
| 57 | Mark Miller | Friends of Alberta Darling | $1,250 | 09/15/2021 |
| 60 | Tony for Wisconsin | $1,000 | 09/12/2021 | |
| 60 | Taxpayers for Marklein | $1,000 | 09/13/2021 | |
| 60 | People for Rebecca | $1,000 | 09/13/2021 | |
| 60 | Friends of Julian Bradley | $1,000 | 09/13/2021 | |
| 60 | Republican Party of Brown Co | $1,000 | 09/14/2021 | |
| 60 | Tony for Wisconsin | $1,000 | 09/15/2021 | |
| 60 | People for Rebecca | $1,000 | 09/15/2021 | |
| 60 | People for Rebecca | $1,000 | 09/16/2021 | |
| 60 | Janet Bewley for Senate | $1,000 | 09/16/2021 | |
| 60 | Committee to Elect a Republican Senate | $1,000 | 09/16/2021 | |
| 60 | People for Rebecca | $1,000 | 09/17/2021 | |
| 60 | Riemer for Assembly | $1,000 | 09/17/2021 | |
| 60 | Kaul for Attorney General | $1,000 | 09/17/2021 | |
| 60 | Taxpayers for Marklein | $1,000 | 09/18/2021 | |
| 60 | People for Rebecca | $1,000 | 09/18/2021 | |
| 60 | Act Blue | Plotkin for Senate | $1,000 | 09/18/2021 |
| 60 | Adolph Pichler | Warren Petryk For Assembly | $1,000 | 09/13/2021 |
| 60 | Capitol Navigators, Inc. | Committee to Elect a Republican Senate | $1,000 | 09/16/2021 |
| 60 | Charles D. Olson | People for Rebecca | $1,000 | 09/16/2021 |
| 60 | Council of Auto & Truck Retail Political Action Committee | Committee to Elect a Republican Senate | $1,000 | 09/16/2021 |
| 60 | Dairy, PAC | Friends of Devin LeMahieu | $1,000 | 09/17/2021 |
| 60 | David Feingold | Tony for Wisconsin | $1,000 | 09/13/2021 |
| 60 | Debbie Ulrich | People for Rebecca | $1,000 | 09/14/2021 |
| 60 | Festival Foods, PAC | Committee to Elect a Republican Senate | $1,000 | 09/16/2021 |
| 60 | Frank Stangl | People for Rebecca | $1,000 | 09/13/2021 |
| 60 | Fred Young | Friends of Van Wanggaard | $1,000 | 09/17/2021 |
| 60 | Friends of Alberta Darling | People for Rebecca | $1,000 | 09/13/2021 |
| 60 | Greg Hobbs | Council of Auto & Truck Retail Political Action Committee | $1,000 | 09/13/2021 |
| 60 | James R. Mode | People for Rebecca | $1,000 | 09/16/2021 |
| 60 | Jane Zimmerman | Tony for Wisconsin | $1,000 | 09/12/2021 |
| 60 | Jason Berg | Waukesha County Democratic Party | $1,000 | 09/12/2021 |
| 60 | Jeffrey Wiesner | Tony for Wisconsin | $1,000 | 09/15/2021 |
| 60 | Jerry Tigges | People for Rebecca | $1,000 | 09/13/2021 |
| 60 | Joan MacCo | Macco for Wisconsin | $1,000 | 09/15/2021 |
| 60 | Joan Schaupp | Republican Party of Brown Co | $1,000 | 09/14/2021 |
| 60 | John Foxley | Republican Party of Walworth County | $1,000 | 09/17/2021 |
| 60 | John J. Flad | People for Rebecca | $1,000 | 09/16/2021 |
| 60 | John Norquist | Riemer for Assembly | $1,000 | 09/17/2021 |
| 60 | Lisa Potter | Taxpayers for Marklein | $1,000 | 09/18/2021 |
| 60 | Louie Gentine | Friends of Devin LeMahieu | $1,000 | 09/14/2021 |
| 60 | Mark Hoffman | Duey for Senate | $1,000 | 09/14/2021 |
