Water Afval Verwerking (WAV) specializes in removal, transport and processing of waste water from passenger ships in and near the Port of Amsterdam.

Water boat IJmuiden B.V. supplies drinking water to seagoing vessels and inland shipping. In addition, the company arranges the pump work for, for example, ship ballast and fills the ship's reservoirs with demineralised water or seawater.

PK Waterbouw V.O.F. specializes on complex hydraulic engineering projects. The company provides services that include water transport and transhipment, ship towing and pushing as well as ship salvage.

Waypoint Port Services is a worldwide port agency offering a variety of services to improve, expedite and smoothen port activities and marine logistics.

Wed. K. Brouwer Verhuur B.V. operates a tug service and rents out a variety of vessels. They include deck barges, barges and pontoons of various sizes.

Wilhelmsen Ships Service B.V. provides a wide portfolio of maritime products and services to all kinds of vessels, markets and regions.