Provides transportation services to the public. Common carriers come in various forms, each suited to different types of transportation needs:
- Shipping Companies
 These giants of the seas transport cargo containers across vast distances, connecting continents through international trade routes.
- Airlines
 They specialize in air freight, offering fast and efficient transportation for time-sensitive or valuable goods.
- Trucking Companies
 Trucks are a dominant force on land, transporting a wide range of goods over shorter or longer distances depending on the carrier’s network.
- Railroads
 While less common in some regions, established railway systems offer a cost-effective and reliable option for bulk cargo transportation.