First step is to contact the Department of Insurance in the state where you bought the policy. They keep track of that information and will know what happened to the original company. It could have been purchased by another company and in that case they can provide the name, address and phone number of the new company. If that is not the case and you are unable to determine if your policy has been assumed by the new company, write or email the Department where you bought the policy. They will then contact the succeeding carrier to see if we can determine what happened to the policy. In one case, a policy bought is the 1930’s changed hand 15 times by 2000 and the regulators found it.