Republic Services is the second-largest integrated provider of traditional solid waste services in the United States, operating roughly 207 active landfills and 246 transfer stations. The company serves residential, commercial, and industrial end markets. It also runs a sizable recycling operation in North America.

Centene is a managed care organization focused on government-sponsored healthcare plans, including Medicaid, Medicare, and the individual exchanges. Centene served 24 million medical members as of September, mostly in Medicaid (about 60% of membership), the individual exchanges (about 20%), and Medicare Advantage (about 5%). The company also serves traditional Medicare users with its Medicare Part D pharmaceutical program and has a military contract.

Centene is a managed-care organization focused on government-sponsored healthcare plans, including Medicaid, Medicare, and the individual exchanges. Centene served 24 million medical members as of June 2023, mostly in Medicaid (67% of membership), the individual exchanges (14%), and Medicare Advantage (6%) plans. The company also serves traditional Medicare users with its Medicare Part D pharmaceutical program.

Humana is one of the largest private health insurers in the US with a focus on administering Medicare Advantage plans. The firm has built a niche specializing in government-sponsored programs, with nearly all its medical membership stemming from individual and group Medicare Advantage, Medicaid, and the military's Tricare program. The firm is also a leader in stand-alone prescription drug plans for seniors enrolled in traditional fee-for-service Medicare. Beyond medical insurance, the company provides other healthcare services, including primary-care services, at-home services, and pharmacy benefit management.