Its establisher and the only shareholder is the Republic of Slovakia, which acts via the Ministry of Transport and Construction.

The ZSSK CARGO's main business activity is providing rail freight transport services.

Other services include renting of traction vehicles and freight carriages, road transport or ensuring of contract conclusion related to UIC or EUR trademark usage to repair or produce pallets.

The company is a holder of certificates in compliance with the standards: Since 2012, ZSSK CARGO transports about 35–36 million tons of goods per year.

Before the Great Recession, the amount reached the point of 50 million tons per year.