This is a very decentralized market in which the three leading health care providing firms represent only 16% of the market. The leading firms involved in providing health care to the penal system by contract are Correctional Medical Services, America Service Group, and Wexford Health Sources, Inc.

Geographic reference: United States
Year: 2009
Market size: $9.3 billion
Source: “Correctional Healthcare,” March 8, 2010 available online here.