Jonathan B. Walker

Corizon Health, Inc. provides correctional healthcare services. It offers healthcare services at correctional facilities across the country serving inmates and is the provider of correctional healthcare services in the United States, delivering a wide range of healthcare and pharmacy programs to government agencies for the medical care of inmates. The company is headquartered in Brentwood, TN.

America Service Group, Inc. provides a wide range of healthcare programs to government agencies for the medical care of inmates. It operates a family of specialized healthcare companies focused on patient safety, quality care and cost-effective treatment as foundational principles. The company was founded in 1990 and is headquartered in Brentwood, TN.

Aramark Services, Inc. provides managed and professional services to business, educational, healthcare, governmental institutions, sports, entertainment and recreational facilities. It offers both rental and direct marketing services. The company was founded by Davre Davidson, Henry Davidson, and William Fishman in 1959 and is headquartered in Philadelphia, PA.

Prison Health Services, Inc. was engaged in providing health care services to local, county, state and federal correctional facilities throughout US. The firm use to provide services which included primary and acute care, behavioral health, dental and pharmacy management. Prison Health also provided health care staffing, management and consulting services. The company was founded in 1978 and was headquartered in Brentwood, TN.