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 If You're In An Accident Do you know what to do if you're in a car accident? Did You Know This Fact About Roof Safety? A roof harness is essential if you're up on the roof making repairs. Protecting Those Who Matter Most The importance of life insurance, how it works, and how much coverage you need.