In the multiplayer mode you work together with other players in a virtual company. Every company has its own free accessible company premise. This is made with the Unreal Engine 4 incl. multiplayer-support, so you can see each other on the bus depot.
At the beginning every company has a main building (offices and depot with 20 bus parking spaces) and a bus workshop. When a company has earned enough money, they can build a new depot with 20 more parking spaces on the area.
The buses of the company can also been seen in the depots. The employees can walk to the buses to check / maintain / repair them (a separate article will follow soon) or to start a tour with this bus. You can then drive in OMSI 2.