This IDC Buyer Case Study explores the current status of the Global Scientific Information and Computing Center, which hosts one of the most powerful supercomputer in the world. The TSUBAME 2.0 offers a unique heterogeneous environment enabling HPC access to wide range of users. The center has developed unique models of national and international collaborations with industry and academia. This Buyer Case Study explores the center, its organization, the largest supercomputing resource at the center and, finally, the collaboration models used by GSIC Center.