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 Accidents Accidents happen to everyone. We’re here to help. What is an Adjuster? Do you know what an Adjuster is? Long-Term-Care Protection Strategies The chances of needing long-term care, its cost, and strategies for covering that cost.