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 Combine Your Policies and Save Some things just make perfect sense in pairs. Understanding the Basics of Medigap Policies Important as it is, Medicare does not cover the full range of health-care expenses you may experience in your golden years. Protecting Those Who Matter Most The importance of life insurance, how it works, and how much coverage you need.