ÖBB-Postbus GmbH is Austria’s largest bus company. It has been part of the ÖBB Group since 2003. The company is a wholly-owned subsidiary of ÖBB-Personenverkehr AG. The business purpose of ÖBB-Postbus GmbH is national and international transport of passengers (approx. 214 million) via regular services as well as occasional transport services.