In literature review, it’s shared that a greater attention should be devoted to environment by people, institutions and companies, and particularly to green logistics and green shipping. For this purpose, intermodal transport is recognized as one of the possible alternatives to the congestion, which returns a key task to ports. The port thus stands out as a central element in affirming the sustainability in logistics. An empirical analysis on two major international companies operating in the field of logistics and transport, through the determination of the Added Value of Sustainability (SVA) highlights the need to still make serious efforts to achieve full implementation of green shipping and green logistics.