Contract research organization (CRO) Covance helps pharmaceutical and biotech companies worldwide develop new drugs by providing a full range of testing services, from preclinical investigations all the way through designing and carrying out human clinical trials and conducting post-marketing studies to determine if drugs are safe and/or effective. Services include toxicology studies and biostatistical analysis. The company's customers include pharmaceutical, biotech, and medical device firms. Covance also offers laboratory testing services to companies in the chemical, agrochemical, and food industries. The company is owned by lab services giant LabCorp.