Abstract
So many banks and major companies have decreased dramatically of its IT investment as the economic circumstances called world crises deteriorates. It is said that the order environment for medium-sized SI enterprise with no sales power and no bland is a tough going, and it will continue for several years in the future. In this severe order entry environment, more strategic enterprise management is needed for SI enterprise to survive. This text give thought for the project origin SI enterprises' management strategy taking the concept of P2M program management, what approach improve competitive power of the company, and whether the sustainable growth can be achieved. The management strategies of medium-sized IT companies are taken up as some cases, and the result of verifying the effectiveness of the program unified management are described.