The ITPM technique has been considered as a new technique that has received little attention in IT research. This research carried out five case studies in different companies from several economic sectors which were using information technology portfolio management (ITPM). In the studied companies, seven persons interviewed and were high-level executives working in the IT department. Result show that ITPM, as one of the information assessment categories for identifying the useful innovations in IT, helps IT and business leaders to identify their priorities and companies to better manage their IT investments. So this technique is significant and useful for companies. So different levels of ITPM use was found to IT investment management. It was observed, that ITPM is used most frequently in IT investment planning, which is the process most discussed and used in analyzed companies. The ITPM technique is used more frequently in Company 2 than in the other cases because the organization of the IT area in the company is structured according to ITPM dimensions.