SEIU Local 509

Marlborough, MA |
Joined in February 2018

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
  • Job & Workplace
293 Boston Post Road West, Marlborough, MA 01752