Since 1968 our goal has been straightforward: help clients get their life back on track and achieve a life of sobriety, free from drug use and symptoms of mental illness. A life that is productive, socially responsible, and healthy. Gateway Foundation is the largest nonprofit treatment provider that specializes in substance use disorders for men, women, adolescents, and clients diagnosed with co-occurring mental health disorders. Gateways professional clinicians support over 9,000 people a day to successfully complete treatment by developing a personalized plan to treat the underlying causes of substance use disorder —not just their addiction to drugs or alcohol. Conveniently located off Interstate 72 in central Illinois, Gateway Foundation Jacksonville offers a supportive environment and access to healthy lifestyle facilities, including a large outdoor space and basketball and sand volleyball courts.