NGGM ("Nederlandse Groen Gas Maatschappij B.V."; "Dutch Green Gas Company") has the purpose to develop sustainable energy projects, in particular production of green gas.

NGGM is a gas production company which develops, finances and exploits green gas projects within the Netherlands and abroad. Biogas, which is produced by fermentation processes, is converted into green gas, which, for example, can be inserted into the natural gas network or can be used in the transport sector in a gaseous form (Compressed Bio Gas; CBG) or in a liquid form (Bio-LNG or Liquefied Bio Gas, LBG).