Aetna is a managed health care company that sells traditional and consumer-directed health care insurance plans and related services, such as medical, pharmaceutical, dental, behavioral health, long-term care, and disability plans. Aetna was founded in 1853 and is headquartered in Hartford, Connecticut. The company has a strong presence in the United States and serves more than 22 million medical members and 12 million dental members. Aetna is committed to improving the health care system and has implemented various initiatives to promote health and wellness, such as the Aetna Foundation, which provides grants to organizations that promote healthy lifestyles and improve health care access.