Clearbrook Human Service Agency is a non-profit organization located in Arlington Heights, Illinois . It was originally established in 1955 in Rolling Meadows, Illinois with Kimball Hill,  (which is now one of the country’s largest privately held land developers).  Clearbrook lists its mission as “leading innovative opportunities, services and supports to patients with developmental disabilities”.
It is one of the largest charities in Chicago .  The agency is led by Carl M. La Mell, its president.
Clearbrook began in 1955 in Rolling Meadows, Illinois when a group of parents began meeting with the goal of establishing a school for their developmentally disabled children. In 1956, the Rolling Meadows Community School for Retarded Children’s Council opened its doors in a rehabilitated barn. In 1961, a permanent facility was established.
In 1965, Clearbrook began the Clearbrook Vocational Rehabilitation Center to assist developmentally disabled individuals in job training.
In 1973, Clearbrook opened its first residential program for adults in Arlington Heights, IL. This marked a shift towards human services has opened up to the developmentally disabled.
Today Clearbrook runs over 40 facilities and functions, including resale shops, in-home programs, and senior programs.
The agency is an officially listed 501 (c) (3) with the US Department of the Treasury . Clearbrook is accredited by the Commission on Accreditation of Rehabilitation Facilities (CARF); NISH; the Illinois Department of Human Services; the Illinois Department of Public Health; and the Illinois Office of Rehabilitation Services.