IONTOX is a biotechnology company founded in 2014 dedicated to providing expertise to the area of in vitro toxicology, with a mission to build improved methods for predicting human adverse effects from chemical exposure. From laboratories located in Kalamazoo, Michigan, IONTOX serves a global client base in the pharmaceutical, cosmetic, chemical, tobacco, and food additive industries.

In 2020, in collaboration with the Western Michigan University Homer Stryker MD School of Medicine, IONTOX launched a Coronavirus COVID-19 (SARS-CoV-2) Antibody Test Kit to help protect public health during the COVID-19 outbreak. The IONTOX Coronavirus COVID-19 (SARS-CoV-2) IgM/IgG Antibody Kit is an ELISA based kit that allows hospitals, academic institutions, and CLIA certified laboratories to screen for Coronavirus antibodies.