Cornerstone Services provides progressive, comprehensive services to people with disabilities promoting choice, dignity, and the opportunity to live and work in the community. Since 1969 Cornerstone has been a leader in meeting the unique needs of individuals with developmental disabilities, mental illnesses, physical disabilities and sensory impairments. Cornerstone is licensed by state and federal agencies .  The Will County, Illinois-based, not-for-profit organization provides vocational, developmental, residential and behavioral health services through five program departments.