The MGB is composed of three companies: the Matterhorn Gotthard AG (MGB) emerged from a rebranding of BVZ, the Matterhorn Gotthard infrastructure AG (MGI) is the former FO, and a new stock company Matterhorn Gotthard railway (MGM) has been established as a management umbrella. The MGB has taken over FO's operations and has turned over BVZ's infrastructure to MGI in exchange. The MGB is majority owned by the BVZ Holding AG (which also owns the Gornergratbahn AG (GGB)), whereas the MGI shares are held by the Swiss federal government and the cantons, MGM is owned by BVZ Holding and the public sector in equal shares.