The concept of quality of life (QOL) is increasingly being used as a support provision and outcomes evaluation framework in the field of intellectual disability (ID). The present study used a hierarchical multiple regression research design to determine the role that available supports strategies, environmental factors, and client characteristics play in assessed quality of life-related personal outcomes. Data were collected in Arduin Foundation in The Netherlands. Participants were 186 individuals with an intellectual disability. Results indicated that QOL-outcomes were significantly impacted by the availability of support strategies, living arrangement, status of employment and level of ID. (Contains 6 tables.)