Through its $2 billion Fund IV, GI Partners has completed its acquisition of Peak 10 from Welsh, Carson, Anderson & Stowe, in a deal rumored to be worth about $900 million. Credit Suisse, RBC Capital Markets and Jefferies provided financing for the transaction. Peak 10 provides hybrid IT infrastructure services, operating 24 data centers throughout the U.S. It primarily serves mid-sized enterprises worldwide, offering data center services, private and enterprise cloud infrastructure and managed services. WCAS had backed the company since 2010.