About Our Company
sterilization, sterilize, sterilisation, medical device sterilization, contract sterilization

Company History

Over the years, we've had multiple names and various parent companies. But throughout the history of our organization our people have been driven by a common passion: to bring safer, smarter solutions to the customers we serve. These are the companies and the events that have made that passion a reality.

Griffith Labs/Griffith MicroScience 1925-1999

In the mid 1930's, Dr. Lloyd A. Hall, Technical Manager of Griffith Laboratories in Chicago, IL, invented the ethylene oxide (EO) sterilization process. Originally created for the decontamination of foodstuffs, Dr. Hall's invention was soon carried to the healthcare industry. In 1999, when the company was acquired by Ion Beam Applications (IBA), Griffith's global network included 18 service centers in the US Canada, Mexico and Europe. One additional facility in Europe provided gamma radiation.

SteriGenics® International, Inc. 1978-1999

SteriGenics International, then known as Radiation Sterilizers, Inc., opened its first gamma facility in Tustin, CA, in 1978 and quickly made a name for itself with a radical new concept in cobalt 60 irradiators—product-overlap, continuous product processing. This innovative technology offered the dual advantages of improved cost efficiency and reduced turn times vs. the more established EO sterilization. Over the next two decades, customer acceptance of the enhanced technology grew rapidly, principally in the sterilization of single-use medical devices, but also in the decontamination of spices, and in materials enhancements for the polymer industry. In 1991, the company changed its name to SteriGenics International, Inc. and continued to innovate—most notably with its ExCell® irradiator, the industry's first automated precision-dose irradiation system, and its GammaStat® service option that answered emergency needs with 24-48-hour processing... guaranteed. SteriGenics was the first contract sterilization company to become ISO 9002 certified in 1992.

Ion Beam Applications (IBA) 1999-2004

In 1999, Belgium-based Ion Beam Applications, a world leader in high technology equipment for medical and industrial applications, acquired both Griffith MicroScience and SteriGenics International. The two companies were merged to form IBA's Sterilization and Ionization division.

Sterigenics International, Inc. 2004-2011

In 2004, IBA's Sterilization and Ionization Division was acquired as a portfolio company by Silverfleet Capital (formerly PPM Capital Limited) and PPM America Capital Partners who manage private equity investments on behalf of Prudential plc, one of the United Kingdom's leading institutional investors, together with other clients.

Sterigenics International, Inc. 2011-Present

In 2011, The owners of Sterigenics International, private equity firm Silverfleet Capital, signed an agreement to sell the portfolio company holding for $675 million to the Chicago-based private equity firm, GTCR, LLC.

GTCR, LLC manages more than $8.5 billion in private equity investments in a variety of companies and industries and is widely known for their expertise in Healthcare, Financial Services & Technology and Information Services & Technology.

Today, Sterigenics International is the world leader in contract sterilization and ionization services for the medical devices, food safety and high performance/specialty materials industries. The company has over 1,100 employees and operates 40 service centers in North America, Europe and Asia.