Member groups
IIHS and HLDI are wholly supported by these auto insurers and insurance associations:
- Acceptance Insurance
- Acuity Insurance
- Allstate Insurance Group
- Ally Financial, Inc.
- American Family Insurance
- American National
- AmericanAg
- Amica Mutual Insurance
- AmShield Insurance
- Aspire General Insurance Company
- AssuranceAmerica
- Auto Club Enterprises
- Auto Club Group
- Auto-Owners Insurance
- Celina Insurance Group
- CHUBB
- The Cincinnati Insurance Companies
- Clearcover Insurance Company
- Colorado Farm Bureau Insurance Company
- Commonwealth Casualty Company
- Concord Group Insurance
- CONNECT, powered by American Family Insurance
- Co-operators Financial Services Limited
- COUNTRY Financial
- CSAA Insurance Group
- CSE Insurance Group
- Desjardins Insurance
- Donegal Insurance Group
- DTRIC Insurance
- ECM Insurance Group
- Elephant Insurance Company
- EMC Insurance Companies
- Encova Insurance
- Erie Insurance Group
- Farm Bureau Financial Services
- Farm Bureau Insurance Company of Michigan
- Farm Bureau Insurance of Tennessee
- Farm Bureau Mutual Insurance Company of Idaho
- Farmers Insurance Group
- Farmers Mutual of Nebraska
- FBAlliance Insurance Company
- Florida Farm Bureau Insurance Companies
- Frankenmuth Insurance
- Gainsco Insurance
- GEICO Corporation
- The General Insurance
- Georgia Farm Bureau Mutual Insurance Company
- Goodville Mutual Casualty Company
- Gore Mutual
- Grange Insurance
- Hallmark Financial Services, Inc.
- The Hanover Insurance Group
- The Hartford
- Haulers Insurance Company, Inc.
- Horace Mann Insurance Companies
- Indiana Farm Bureau Insurance
- Indiana Farmers Insurance
- Just Insure
- Kemper Corporation
- Kentucky Farm Bureau Mutual Insurance Companies
- Lemonade, Inc.
- Liberty Mutual Insurance
- Louisiana Farm Bureau Insurance Company
- Main Street America Insurance
- MAPFRE Insurance Group
- Mercury Insurance Group
- Mississippi Farm Bureau Casualty Insurance Company
- MMG Insurance
- Mountain West Farm Bureau Mutual Insurance Company
- Munich Reinsurance America, Inc.
- Mutual Benefit Group®
- Mutual of Enumclaw Insurance Company
- National General Insurance
- Nationwide
- NJM Insurance Group
- Nodak Insurance Company
- North Carolina Farm Bureau Mutual Insurance Company
- North Star Mutual Insurance Company
- Northern Neck Insurance Company
- NYCM Insurance
- Ohio Mutual Insurance Group
- PEMCO Mutual Insurance Company
- Plymouth Rock Assurance
- Progressive Insurance
- Redpoint County Mutual Insurance Company
- The Responsive Auto Insurance Company
- Rider Insurance
- Rockingham Insurance
- Root Insurance Co
- Safe Auto Insurance Company
- Safeco Insurance®
- Samsung Fire & Marine Insurance Company
- SECURA Insurance
- Selective Insurance
- Sentry Insurance
- Shelter Insurance®
- Sompo International
- South Carolina Farm Bureau Mutual Insurance Company®
- Southern Farm Bureau Casualty Insurance Company
- State Auto Insurance Companies
- State Farm Insurance Companies
- Stillwater Insurance Group
- Swiss Reinsurance Company Ltd
- Texas Farm Bureau Insurance
- The Travelers Companies, Inc.
- United Auto
- United Insurance Group
- USAA
- Virginia Farm Bureau Mutual Insurance
- West Bend Insurance Company
- Westfield
- Zurich North America
-
Funding associations
- American Property Casualty Insurance Association
- National Association of Mutual Insurance Companies