Sleepdienst en Dekschuitenverhuurderij Blom B.V. provides rentals and transportation of covered barges, pontoons and tug boats. The fleet includes coupled barges in various sizes. Some of them can be deployed for piling rigs and cranes.

Sleepdienst en Handelsonderneming Groenen specializes in the transportation of indivisible objects over the water. The company rents out tug boats and covered barges with a capacity of up to 340 HP. These vessels come with skilled personnel.

Sole Technology has its European headquarters in the port of Amsterdam. The American fashion company designs, manufactures and sells sports footwear, apparel and accessories. The products are known for their urban style and comfortable fit.

Sonneborn Refined Products B.V. manufactures and supplies high-purity specialty hydrocarbons from base oils and petroleum distillates. They include materials like white oils, vaselines and microcrystalline wax.

Spliethoff specializes in worldwide shipping of dry cargo. The Dutch company operates a fleet of some fifty modern multipurpose tween-decked vessels. They are suitable for tropical waters as well as arctic conditions.

Starbucks operates a production location in the Port of Amsterdam. There, the company has run a large coffee roasting facility since 2003. It is the only one outside the United States.

STC Group is the vertical education and knowledge institution for shipping, transport and port industry. In addition, STC Group provides courses and training for professionals.

Steder Group is a company that offers a variety of services related to freight forwarding, chartering, as well as project and heavy-lift logistics. Its specialists arrange transportation of cargo by sea, road, rail and air to any destination.

Steengoed B.V. is a real estate company specialized in project development. The company has its office in the Port of Amsterdam and developed several projects in the same area.