Sotera Health Company engages in the provision of sterilization, lab testing, and advisory services in the United States and internationally. The company operates through three segments: Sterigenics, Nordion, and Nelson Labs. It provides mission-critical end-to-end sterilization services, including gamma and electron beam irradiation, and ethylene oxide processing, as well as designs, installs, and maintains gamma irradiation systems. The company also provides microbiological and analytical chemistry testing, as well as technical assistance, regulatory consulting, and advisory services. It serves medical devices, pharmaceuticals, food safety, agricultural products, cancer treatment, and high-performance materials industries, as well as commercial, advanced, and specialty application industries. The company was formerly known as Sotera Health Topco, Inc. and changed its name to Sotera Health Company in October 2020. Sotera Health Company was incorporated in 2015 and is headquartered in Broadview Heights, Ohio.