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Highmark originated on June 22, 1977, as a branch of Blue Cross Blue Shield of Pennsylvania. It was the result of the merger of two not-for-profit insurance organizations: Associated Hospital Service of Philadelphia and Pennsylvania Blue Shield.

In an effort to expand, Highmark increased its presence by merging with Blue Cross of Western Pennsylvania in 1996. The subsequent decades of the 1990s and 2000s were characterized by Highmark’s strategic growth through its own ventures and acquisitions of regional insurance organizations.

A significant turn in the company’s trajectory occurred in 2013 when Highmark integrated with West Penn Allegheny Health System. This alliance marked the beginning of what is now Allegheny Health Network. Under the concept of integrated health care, Highmark began to bring together physician groups, ambulatory care centers, and other important health care providers.

In its current form, Highmark is a beacon of health insurance for more than six million customers residing in Pennsylvania, Delaware, and West Virginia. The company’s portfolio ranges from commercial offerings to Medicare and Medicaid programs, as well as plans designed for individuals or families. With impressive annual revenues in excess of $20 billion, Highmark has firmly established its position as one of Blue Cross Blue Shield’s leading affiliates and the preeminent health insurance organization in the United States.