Kansas-based data center provider QTS has expanded its credit facility by US$135m, reaching a total of $575m.

Along with the increase, the credit facility was converted from a secured to an unsecured one and the term extended through May 2017.

The data center company's CEO Chad Williams, said the announcement was an endorsement of the company’s success and growth and reinforced its partnerships with the financial institutions.

“The credit facility allows us to further execute our development strategy,” he added. “The financial flexibility enables us to focus on the continued expansion of our facilities in Atlanta, Richmond, Santa Clara and Sacramento and commence development of our recently acquired facility in Dallas.”

KeyBank National Association served as administrative agent and KeyBanc Capital Markets was the lead arranger for the amendment and extension. Eight additional financial institutions have joined KeyBanc Capital Markets as credit-facility participants, including Bank of America Corp., Deutsche Bank Trust Company Americas, Goldman Sachs Bank USA, JPMorgan Chase, Morgan Stanley Bank, Regions Bank and Stifel Bank & Trust.

Two other US data center companies announced new debt financing this week. Phoenix-based IO raised $260m from a group of banks and T5 got $113m in credit to expand its data center in Texas.