How To Find A Car's Insurance Company. You can sometimes find an insurance company with only a policy number, but this will not always be the case. Call the corporate offices of the insurance company with which you think you had coverage.
First, check with your state’s department of insurance website and make sure the company is licensed to sell auto insurance in your state. You can get the insurance company’s name easily as the insurance information is associated with the vehicle identification number (vin) and not with the owner’s information. It will just require a bit more legwork.