Family Service League is Long Island's largest accredited human services agency, serving more than 60,000 individuals and families annually across Suffolk and Nassau counties from over 20 locations. Founded in 1926, the organization operates a portfolio of over 60 programs addressing mental health, addiction treatment, housing, crisis intervention, and support for children and seniors. It employs over 700 professionals and maintains national accreditation across its service offerings.
The agency's service model emphasizes accessibility and rapid response. It operates 24/7 crisis stabilization through its DASH centre, deploys mobile crisis teams to community settings, and provides telehealth services to extend reach. Community-based assessments help connect vulnerable populations - including homeless individuals, people with mental illness, and families in distress - to appropriate resources. Mental health clinics and addiction treatment centres provide ongoing clinical care alongside these acute and preventative services.
Family Service League functions within an integrated care ecosystem, collaborating with healthcare providers, law enforcement, schools, and community partners to coordinate support. As a 501(c)(3) nonprofit headquartered in Huntington, New York, the organization's scale and breadth position it as a primary provider of social services infrastructure for Long Island.
