Ondernemersvereniging Regio Amsterdam (ORAM) is the largest business association in the Greater Amsterdam Metropolitan Area. ORAM presents itself as the only independent advocate for businesses in Amsterdam.

Orange Nautical Services offers sixteen thousand square meter Yacht Storage. With her skilled team of craftsman and network of specialized subcontractors Orange takes care of all disciplines of maintenance, repair and refit.

OrangeGas Investments B.V. is a supplier of alternative fuels. The service is offered through a network of dozens of tank locations throughout the Netherlands, including some in and around Amsterdam.

Orgaworld Netherlands B.V. processes organic waste streams.

Otos LMR Systems is a company that is characterised by its extensive expertise in the field of walkie-talkies and mobile phones.

Oudkerk provides services of international transport and logistics. The company has developed a wide range of services, supporting a variety of business customers from around the world.

Oudt Zwanenburg Sloopwerken B.V. specializes in demolition works and asbestos removal. To this end, the company is equipped with a variety of specialized machines, to be used by trained personnel.

Özer Container Services B.V. is a service provider in worldwide freight forwarding. The company arranges air, sea and road transport, with distinctive expertise of shipments to West Africa and Turkey.

Paes Maritiem B.V. is a company that is specialized in the extraction of sand, clay and gravel and the trade in these commodities. At the location in the Port of Amsterdam the raw materials are supplied, processed, stored and shipped again.