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

Marlborough, MA |
Joined in March 2002

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…

Areas of Focus Include
  • Civic Engagement
  • Community Development
  • Education
  • Family
  • Health & Medicine
293 Boston Post Road West, 4th Floor, Marlborough, MA 01752