Flacks Group, a private investment firm, completed the acquisition of Corizon Health, a privately held prison healthcare contractor in the United States. Financial terms were not disclosed. "With this investment in Corizon, we at Flacks Group have demonstrated our ability to respond quickly and make major investments in companies that have strong prospects but face complex operating environments. We believe in the Corizon Health mission and support management’s plans for excellent service and profitable growth," Michel Rybkin, Flacks Managing Partner.