Health Care Insurer
UnitedHealthcare, a segment of Minnetonka, Minn.-based UnitedHealth Group, provides individual and employer-sponsored health benefits plans for 27.5 million Americans in 50 states, as well as health benefits for 11.2 million Medicare beneficiaries and 5.4 million Medicaid and community programs. A June 2015 tally ranked UnitedHealth Group first among U.S. health insurers in total premiums written ($98.462 billion) and market share (11.94%), and third in market share among 388 metropolitan areas. Tops among CFO’s readers, UnitedHealth has been the sector leader on Fortune’s World’s Most Admired Companies list for six straight years.
Runners-Up: Anthem and Aetna