Sterigenics International LLC, a provider of outsourced contract sterilization services for the medical device sector and other industries, has completed its $826 million acquisition of Nordion Inc.

"We are incredibly excited to welcome the Nordion employees to the global Sterigenics team," said Michael Mulhern, Sterigenics CEO.  "For more than 30 years, we have known the Nordion organization and have deep respect and appreciation for their people and expertise.  By completing this acquisition, we are creating the only vertically integrated sterilization company in the world and will have a broader product portfolio, service offering, and global footprint to better serve customers worldwide. Moving forward, Sterigenics is extremely well positioned to build on its mission of improving global public health."

As a standalone business within Sterigenics, Nordion will remain headquartered in Ottawa, Canada, and will continue to operate under the Nordion name.

Headquartered in Deerfield, Ill., Sterigenics operates out of 39 facilities in 11 countries across the Americas, Europe and Asia.

This is the second strategic acquisition by Sterigenics this year. In March, Sterigenics closed the acquisition of Food Technology Service Inc., a Mulberry, Fla.-based irradiation facility that uses gamma radiation to provide contract sterilization services to the medical products, packaging and food industries.

GTCR is a Chicago, Ill.-based private equity firm that bought Sterigenics from Silverfleet Capital (another private equity firm) in March for $675 million.