Die Berliner Verkehrsbetriebe (German for Berlin Transport Company) is Berlin's main public transport company. BVG manages the city's underground railway (U-Bahn), tram, bus and ferry networks. The company uses TETRA communications is its underground and Tetrapol in its overground operations.
Helsinki Region Transport (HSL) is a joint local authority whose member municipalities are Helsinki and its neighboring cities Espoo, Vantaa, Kauniainen, Kerava, Kirkkonummi, Sipoo, Siuntio and Tuusula.
Régie Autonome des Transport Parisiens (RATP), is the transportation company for the urban areas of Paris, France. The company uses a Airbus TETRA system for their communications over the whole area.
The VIRVE network is in shared used by a wide variety of organizations: