Amazon is one of the big companies in the world that use vertical integration and this has been of much benefit to the company. For example, Amazon's main service is the facilitation of the selling of products online. When Amazon started e-commerce, these products were from various sellers. As Amazon began integrating vertically, it transformed to start owning its own vehicles to distribute the products being sold instead of using third-party logistic companies. It then started creating and manufacturing some products itself instead of relying on the sellers.