In response to the limited use of RCTs with homeless youth to test research-supported interventions, this study compares the efficacy and short-term outcomes of two interventions that combine employment and clinical services with homeless youth experiencing mental illness. The Social Enterprise Intervention (SEI) is a research-supported intervention using a group approach that engages homeless youth in paid employment as well as case-management and mental health services through involvement in an agency-run social enterprise. The Individual Placement and Support (IPS) model of supported employment is an individually focused, evidence-based intervention , which provides individuals with severe mental illness with customized, long-term, and integrated vocational, case-management, and clinical services to help them gain and maintain competitive employment.