Recent worldwide developments in financing and offering of public infrastructure along with the strong presence of concession contracts in Greece for the construction of important projects like toll roads, international airports and bridges call for further study of the similarities and differences of project finance and corporate finance. Significant boost was given to project financing in Greece due to adoption by law of the Public Private Partnerships initiative for the construction of public infrastructure. Large number of construction and engineering projects was mainly based in this practice. Despite the extended practical use literature about this topic, worldwide, remains rather poor while in Greece is still in infancy. Further more, confusion still exists in reference to the above mentioned two ways of financing and structure finance. Motives for and benefits derived from using project financing remain still unexplored. The purpose of this study is to discuss differences and similarities of project and corporate financing and to conclude referring to benefits and uses of Project Finance.