Overview

Quest Diagnostics Incorporated is one of the leading providers of diagnostic information services, incorporated in Delaware in 1990. The company conducts business through its headquarters in Secaucus, New Jersey, and its laboratories, patient service centers, offices, and other facilities around the United States and in selected locations outside the United States. Quest annually serves one in three adult Americans and half the physicians and hospitals in the United States. The company’s products and services are used by customers in over 130 countries. Quest Diagnostics also collaborates with many international diagnostic laboratories, hospitals, and clinics to help improve human health around the world. The company engages a workforce of about 50,000 employees and operates approximately 2,200 patient locations and dozens of clinical laboratories throughout the U.S. During 2022, the company generated net revenues of $9.9 billion.