Steris plc is an American-Irish-based medical equipment company specializing in sterilization and surgical products for the US healthcare system.

[9] In November 2018, Steris announced that it would further re-domicile its legal headquarters from the United Kingdom to Ireland; Steris had reduced its corporate tax rate from 31.3 percent to 20 percent as a result of its 2014 tax inversion to the United Kingdom, however, it believed a further reduction could be achieved by moving to Ireland.

[12][13] In April 2020, Steris received emergency use authorization from the FDA for a N95 mask sterilization system to help address the shortage of personal protective equipment during the 2019-20 coronavirus pandemic.

[14][15] In November 2020, Steris acquired Key Surgical, a leading global provider of sterile processing, operating room, and endoscopy products.

[16] In June 2021, Steris acquired Cantel Medical Corporation a provider of infection prevention products and services to endoscopy, dental and dialysis.