Nonprofit

SEIU 509: The Massachusetts Union for Human Service Workers & Educators

Marlborough, MA
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seiu509.org

  • About Us

    SEIU Local 509 represents nearly 20,000 human service workers and educators throughout Massachusetts. We provide a variety of social services to elders, at-risk children and people with mental illnesses or developmental disabilities — as well as educational services in both public and private sector settings. From mental health clinicians and social workers to early childhood educators and university lecturers, Local 509 members are united in our mission to raise living standards for all working families while improving the quality and affordability of the services we provide.

    Local 509 is part of the Service Employees International Union (SEIU), one of the largest and fastest-growing labor unions in the United States.

    SEIU Local 509 represents nearly 20,000 human service workers and educators throughout Massachusetts. We provide a variety of social services to elders, at-risk children and people with mental illnesses or developmental disabilities — as well as educational services in both public and private sector settings. From mental health clinicians and social workers to early childhood educators and university lecturers, Local 509 members are united in our mission to raise living standards for all working families while improving the quality and affordability of the services we provide.

    Local 509 is part of the Service Employees International Union (SEIU), one of the largest and fastest-growing labor unions in the United States.

    Issue Areas Include

    Location

    • 293 Boston Post Road West, Marlborough, MA 01752, United States
      4th Floor
    Illustration

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