DGX

Quest Diagnostics Inc is an American clinical laboratory company that delivers a broad range of diagnostic testing services, including routine blood work, anatomic pathology, molecular and genetic assays, and related health‑information solutions. It operates an extensive network of laboratories, patient service centers and a logistics system that connects physicians, hospitals, health plans, employers and patients across the United States and select international markets. As one of the largest diagnostic information service providers, the firm is recognized for its comprehensive test menu, high‑volume operations and partnerships with health systems, positioning it as a leading player in the health‑care diagnostics sector.