Quest Diagnostics

Quest Diagnostics is a prominent provider of diagnostic information services, established in 1967 in New York City. Headquartered in Madison, New Jersey, the company is publicly traded and is part of the S&P 500. It has evolved from a small operation into a global leader in the diagnostic field through strategic acquisitions and technological advancements. The company offers a wide range of diagnostic services, including routine and specialized testing such as blood tests, genetic testing, and anatomical pathology. It also provides COVID-19 testing and consumer-initiated testing through QuestDirect, allowing patients to order lab tests directly. Quest Diagnostics serves a significant portion of the U.S. population, including one in three adult Americans, and collaborates with employers and health plans to enhance workplace wellness and population health analytics. With nearly 50,000 employees, Quest Diagnostics is dedicated to improving healthcare decisions through data-driven insights.