About PSI

PSI is the industry's first provider of a new generation of mainframe computers compatible with the broadest set of datacenter environments and operating systems, including the IBM z/OS operating system. Founded with a vision of offering true choice in the selection of advanced new mainframe systems, PSI provides customers a new level of control over their IT investments and ultimate flexibility in aligning their existing and future enterprise computing resources with changing business priorities and technologies. The Sunnyvale, Calif.-based company was founded in 1999 by a core team of former Amdahl engineers and is funded by world-class strategic and venture investors, including Blueprint Ventures, Goldman Sachs, Intel Capital, InterWest Partners, Investcorp, and Microsoft.