Gateway CSB's mission is to be a leader in the provision of comprehensive community services for mental health, substance use disorders, and developmental disorders and disabilities to the people and communities it serves. Gateway helps individuals, families, and communities improve their health and wellness, direct their own futures and strive to reach their full potential by providing mental health and substance abuse counseling and IDD services as well as Peer Support, Supportive Employment, Permanent Supportive Housing and our Homeless programs.