The top Wisconsin property and casualty insurance companies, ranked by market share of direct premiums written in the state, are:
- American Family Insurance Group
- State Farm Group
- Travelers Group
- Progressive Group
- Liberty Mutual Group
- Zurich Insurance Group
- West Bend Mutual Insurance Company
- Acuity, A Mutual Insurance Company
- QBE Insurance Group
- American International Group (AIG)
Source: National Association of Insurance Commissioners (NAIC)
