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 | Related Content Accidents Accidents happen to everyone. We’re here to help. Did You Know This Fact About Older Vehicles? Did you know you have coverage options on older vehicles? Long-Term-Care Protection Strategies The chances of needing long-term care, its cost, and strategies for covering that cost.