Companies with Approval to use ISO (Insurance Services Office) Public Auto Loss Costs
- Acadia Ins. Co.
- AIG Ins. Group
- American Alternative Ins. Corp
- American Modern Home Ins. Co.
- American States Ins. Co.
- Bituminous Casualty Corp.
- Carolina Casualty Ins Co.
- Church Mutual Ins Co
- CNA Ins Group
- Continental Western Ins. Co.
- Crum and Forster Ins. Co.
- Empire Fire & Marine
- Everest National Ins. Co.
- Farm Family Casualty Ins Co.
- Firemen's Ins. Co. of Wash., DC
- Fireman's Fund Insurance Companies
- General Casualty Co. of Wisconsin
- General Ins Co. of America
- Great American Ins. Companies
- Greenwich Ins Co.
- GuideOne Mutual Ins. Co.
- Hanover Ins Group
- Harco National Ins Co.
- Hartford Ins Group
- Holyoke Mutual Ins Co.
- MIC Property and Casualty Insurance Corporation
- Michigan Millers Mutual Ins Co.
- Motorists Commercial Mutual Insurance Company
- National Casualty Co.
- Nationwide Ins Group
- Nipponkoa Ins. Co. (U.S. Branch)
- North American Elite Insurance Company
- North American Specialty Ins Co.
- Northland Ins. Cos.
- NOVA Casualty Co.
- NY Schools Insurance Reciprocal
- Occidental Fire & Casualty Co. of N.C.
- Ohio Casualty Co.
- Old Republic Insurance Co.
- One Beacon Insurance Group
- Peerless Ins. Cos.
- Pennsylvania National Mutual Casualty Ins Co.
- Praetorian Ins. Co.
- Providence Washington Insurance Companies
- Repwest Insurance Company
- RLI Insurance Co.
- Rutgers Casualty Ins Co.
- Scottsdale Ins Co.
- Selective Ins Cos.
- Sentry Ins Cos.
- SPARTA Ins. Co.
- Star Ins. Co.
- Technology Ins. Co.
- Tower Ins. Cos.
- Transguard Ins Co. of America
- Ullico Casualty Co.
- Utica National Ins Group
- Vanliner Ins Co.
- Virginia Surety Co.
- Wausau Ins Companies
- Wesco Ins. Co.
- Westport Insurance Corporation