The UIP -  International Union of Wagon Keepers a.i.s.b.l. encompasses 14 European associations from 14 European countries. The associations and the UIP represent owners, loaders, users and other parties interested in about 180.000 private rail freight wagons running in Europe.

The economic importance of the P-wagon fleet is a combined result of specialization and use of efficient logistic processes such that the total European wagon fleet produces nearly half of all tonne-kilometres carried.

The UIP represents the interests of its members at the European Union and other international organizations. It carries out research in the fields of technology, operations, economics and marketing and looks after the interest of the P-wagon by contributing to the drawing up of international regulations and guidelines.

The UIP’s main objective is to guarantee a future for the private wagon within a liberalized rail freight sector.

Indispensable prerequisite for pursuing this objective is to stop the decline of rail freight transport. Within the framework of its European activities UIP actively supports together with its partner organizations all corresponding European liberalization policy endeavours.