MARCOGAZ brings together Transmission and Distribution Network Operators of gaseous fuels and national gas industry associations in Europe. The association's main mission is to serve its members as a European platform for dialogue, allowing exchange of knowledge and best practices for solving technical issues related to natural gas and renewable gas fuels.

Polska Spółka Gazownictwa has been member of the EU technical association MARCOGAZ since November 2020. As part of this cooperation, PSG participates in various projects, studies and initiatives to develop a safe, efficient and sustainable gas sector.

PSG's activities within MARCOGAZ also include participation in various working groups, meetings, conferences and training sessions organised by the association. The cooperation gives PSG access to the latest information, technologies and trends in the gas sector and the opportunity to influence the creation of European regulations and standards. As member of MARCOGAZ, PSG also has the opportunity to represent the interests of the Polish gas sector in international forums.