Freight carriers are companies or individuals responsible for transporting goods from one location to another. They use various modes of transportation, including trucks, trains, ships, and airplanes, to move products efficiently. Freight carriers play a crucial role in supply chains, ensuring that items reach retailers and consumers on time. These carriers can be classified into different types, such as common carriers, which offer services to the public, and contract carriers, which provide transportation based on specific agreements. They help businesses manage logistics and reduce costs associated with shipping and delivery.