Our Members

Who we represent

Our members include 26 domestic P/C companies, 14 foreign P/C insurers and reinsurers, eight insurance trade associations and five insurance-related organizations.

OII’s member companies represent 87% of Ohio’s private passenger auto insurance market, 81% of the homeowners market and 50% of the commercial market (based on 2017 market share data from the Ohio Department of Insurance).

Allstate Insurance Company
American Family Insurance Company
American Property Casualty Insurance Association 
Auto-Owners Insurance
Buckeye Insurance Group
Central Insurance Companies
Century Insurance Group
Greater Cincinnati Insurance Board
The Cincinnati Insurance Companies
Crossroads Property Restoration, LLC
Demotech, Inc.
Eastern Ohio Mutual Insurance
Encova Mutual Insurance Group
(formerly Motorists Insurance Group)
Erie Insurance
Evergreen National Indemnity Company
Farmers Insurance
Farmers Mutual Insurance Company
FCCI Insurance Group
Grange Insurance
Great American Insurance Group
Grinnell Mutual
Imperial PFS
MAPFRE Insurance
Marias Technology

Mennonite Mutual Aid Society
Mennonite Mutual Insurance
MSO, Inc.
National Assn. of Mutual Insurance Companies (NAMIC)
National Insurance Crime Bureau (NICB)
Ohio Insurance Agents Association

Ohio Mutual Insurance Group
Perry County Mutual Fire Insurance Company
Reinsurance Association of America
Root Insurance
Springfield Township Mutual Insurance Association
State Auto Insurance
State Farm
Swiss Re
Washington County Farmers Mutual Insurance Association
Washington Mutual Insurance Association (Note: Part of Wayne Mutual Group)
Wayne Insurance Group
Western Reserve Group
Wyandot Mutual Insurance Co.