Laboratory Corp. of America Holdings is a clinical laboratory company. The firm engages in the provision of clinical laboratory and end-to-end drug development services. It operates through the following segments: LabCorp Diagnostics and Covance Drug Development. The LabCorp Diagnostics segment includes core testing as well as genomic and esoteric testing. The Covance Drug Development segment provides drug development solutions to companies in the pharmaceutical and biotechnology industries. The company was founded in 1971 and is headquartered in Burlington, NC.