What is a Carrier? Carrier[kar-ee-er]noun1.The Carrier is the insurance company that provides a specific Policy and is the company that a policyholder will pay Premiums to. The Carrier is ultimately responsible to pay out Claims. Share | Have A Question About This Topic? Name Email Address Question Thank you! Oops! Related Contents Extended Care: A Patchwork of Possibilities What is your plan for health care during retirement? What is a Policy? Do you know what a Policy is? The Best of Both Worlds Here are a few reasons we’ve chosen to be independent.