Transmed S.p.A. was funded in Milan on September 12th 2005. Transmed is jointly-owned by Eni S.p.A. (Italian National Energy group) and Sonatrach (Algerian National Energy group).

Transmed is active in leasing, managing and marketing of transport capacity of the gas pipelines owned by Transmediterranean Pipeline Company Ltd. (TMPC). These gas pipelines link Cap Bon's compression station in Tunisia to the Italian gas pipeline network entry point at Mazara del Vallo, Sicily. Transmed's activities follow the recent capacity growth on Enrico Mattei (GEM) and Transtunisian (TTPC) pipelines.