- Alliance MBTA
- AFSCME Council 93
- American Federation of Teachers MA
- Boston Carmen's Union 589
- Boston Teachers Union
- Greater Boston Labor Council
- International Union of Painters and Allied Trades District Council #35
- Massachusetts AFL-CIO
- Massachusetts Organization of State Engineers and Scientists
- Massachusetts Teachers Association
- National Association of Government Employees
- Office & Professional Employees International Union Local 453
- State Police Association of Massachusetts
- United Auto Workers 2322
- United Steel Workers 9358
- United Steel Workers 9360
