Campaign Finance Database
Updated: April 2, 2015Welcome to Wisconsin’s premier searchable computer database of campaign contributors to candidates for state office in Wisconsin. Regularly updated with financial support from MapLight, this database includes records of contributions of $100 or more from individuals to candidates for the Wisconsin Legislature as well as governor, lieutenant governor, attorney general, state school superintendent and state Supreme Court justices.
The contributor records in this database generally date back to 1993, although in limited cases contributions dating as far back as 1989 are included. State law only requires donors who give more than $100 to disclose their occupation and employer. Please note that, in general, contributions returned by the candidates are excluded from search results.
You have two options when searching for individual contributors. Use the simple search below to search by contributor, employer, city or candidate or use the advanced search to search by more varied criteria.
Contributions from political action committees (PACs) can be found elsewhere on our website.
Updated through March 23, 2015 for candidates in the spring Supreme Court and the 20th Senate District special elections.
Updated through October 20, 2014 for candidates - final ballot and primary - in the 2014 fall election and the four legislative campaign commitees.
Updated through June 30, 2014 for all Supreme Court Justices not running for reelection in 2015 and all other constitutional officers who did not run for reelection in 2014.
Returned contributions have been removed.