S.N.T.G.N. Transgaz SA engages in transmission, international transit, natural gas dispatching and research-design. It operates through the Domestic Gas Transmission and International Gas Transmission segments. The Domestic Gas Transmission segment is regulated by the National Regulatory Authority. The International Gas Transmission segment refers to the pipeline gas transmission without the transshipment of the Romanian territory. The company was founded in May 2000 and is headquartered in Medias, Romania.