Category
page 1Pharmacy benefit management companies based in the United States
UnitedHealth Group
for-profit health care company
CVS Health
company
The Cigna Group
American health services organization
Humana
Humana Inc. is an American for-profit health insurance company based in Louisville, Kentucky. In 2024, the company ranked 92 on the Fortune 500 list, which made it the highest ranked (by revenues) company based in Kentucky. It is the fourth largest health insurance provider in the U.S.

Elevance Health, Inc.
American healthcare company

Aetna
Aetna Inc. ( ) is an American managed health care company that sells traditional and consumer directed health care insurance and related services, such as medical, pharmaceutical, dental, behavioral health, long-term care, and disability plans, primarily through employer-paid (fully or partly) insurance and benefit programs, and through Medicare. Since November 28, 2018, the company has been a subsidiary of CVS Health.
Express Scripts
company
Centene Corporation
American multinational healthcare company
Affiliated Computer Services
Xeros subsidiary providing IT services and outsourcing solutions
Medco Health Solutions
American health insurance company