Highmark Group

TOP-8

Highmark is a private healthcare company based in Pittsburgh, Pennsylvania, United States. It is the largest health insurer in Pennsylvania, and through a purchase in 1996, the largest health insurer in West Virginia and also later Delaware.

Blue Shield of California Group

TOP-9

The Blue Cross Blue Shield Association (BCBSA) is a federation of 36 separate United States health insurance organizations and companies, providing health insurance to more than 106[2] million Americans.[3] Blue Cross was founded in 1929, and became the Blue Cross Association in 1960, while Blue Shield emerged in 1939 and the Blue Shield Association was created in 1948. The two organizations merged in 1982.

Independence Blue Cross Group

TOP-10

Independence Blue Cross (IBC) is a health insurer based in Philadelphia, Pennsylvania in the United States. IBC is the largest health insurer in the Philadelphia area, serving more than two million people in the region and seven million nationwide.[2]