Incorporated in 1990, Quest Diagnostics is one of the world s leading providers of diagnostic testing, information and services. The company offers access to diagnostic testing services and interpretive consultation solutions through its network of laboratories/patient service centers. It develops diagnostic tests and advanced health care information technology solutions for improving patient care. The firm offers clinical testing, including gene-based and other esoteric testing as well as anatomic pathology services, including dermatopathology and testing for drugs-of-abuse. In addition, Quest Diagnostics provides testing for clinical trials and risk assessment services for the life insurance industry.