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? Address Thank you! Oops! Related Contents Extended Care: A Patchwork of Possibilities What is your plan for health care during retirement? Retiree Health Care Coverage Overseas Retirees traveling abroad need to know that their health insurance travels with them. Protecting Those Who Matter Most The importance of life insurance, how it works, and how much coverage you need.