Historically, shipping companies have used the normal requirements of freight rates and shipping schedules to pay their freight bills.The forwarders, which facilitate shipping services for the freight forwarders, include many shipping companies and smaller freight forwarders. These freight forwarders work to move freight from the ship to the company's warehouses, manufacturing, warehouses, etc., to store and sell goods. As the freight forwarders do all this, the forwarding companies that run the freight forwarding companies get a small part of the profits. Some freight forwarders operate in freight forwarding with other services, such as warehousing.