Quest Diagnostics Inc

Business Description

Quest Diagnostics is one of the largest medical testing companies in the United States, helping doctors, hospitals, insurers, and everyday patients get the information they need to make health decisions. Founded in 1967 and based in Secaucus, New Jersey, the company runs an extensive network of labs and collection sites across the country, offering everything from routine blood work to highly specialized disease testing. Beyond standard diagnostics, it also supports life insurers with risk screening, helps employers manage workforce health, and provides digital tools that connect health data across care settings.