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 Message Thank you! Oops! Related Content The Best of Both Worlds Here are a few reasons we’ve chosen to be independent. The Anatomy of a Supplemental Health Plan Here’s a guide to explain all the parts of Medicare. Protecting Those Who Matter Most The importance of life insurance, how it works, and how much coverage you need.