Aetna is a Hartford-based company that provides health insurance and other related services. It is one of the largest health insurance providers in the United States, with over 50 million members. Founded in 1853, AETNA has grown to become a Fortune 500 company and is now a leader in the health care industry. AETNA offers a wide range of products and services, including medical, dental, vision, pharmacy, and life insurance. The company also provides health care management services, such as disease management, wellness programs, and health education.