- Actor's Equity (ann-arbor)
- AFL-CIO (ann-arbor)
- AFSCME (ann-arbor)
- AFSCME Local 1182 (ann-arbor)
- AFSCME Local 1583 (ann-arbor)
- AFSCME Local 3052 (ann-arbor)
- AFSCME Local 3451 (ann-arbor)
- AFSCME Local 369 (ann-arbor)
- American Federation of Teachers (ann-arbor)
- Ann Arbor Administrators Association (ann-arbor)
- Ann Arbor Education Association (ann-arbor)
- Ann Arbor Federation of Musicians (ann-arbor)
- Ann Arbor Police Officers Association (ann-arbor)
- Canton Professional Fire Fighters Union (canton)
- Eastern Michigan University Federation of Teachers (ann-arbor)
- Employee Organizations (ann-arbor)
- GEO (ann-arbor)
- Heat and Frost Insulators Local 25 (ann-arbor)
- Huron Valley Central Labor Council (ann-arbor)
- IAFF (ann-arbor)
- IAFF Local 1830 (ann-arbor)
- IAFF Local 693 (ann-arbor)
- IBEW (ann-arbor)
- Industrial Workers of the World (ann-arbor)
- International Brotherhood of Electrical Workers Local 252 (ann-arbor)
- International Union of Elevator Constructors Local 85 (ann-arbor)
- Iron Workers Local 25 (ann-arbor)
- IUPAT Local 514 (ann-arbor)
- Jeff Gearhart (ann-arbor)
- Lecturers' Employee Organization (ann-arbor)
- Police Officers Association of Michigan (ann-arbor)
- Saline Education Association (ann-arbor)
- Sheet Metal Workers Local 80 (ann-arbor)
- Teamsters (ann-arbor)
- Teamsters Local 214 (ann-arbor)
- The Ohio Organizing Collaborative (The OOC) (cincinnati)
- Transport Workers Union Local 171 (ann-arbor)
- UAW Local 735 (ann-arbor)
- UAW Local 892 (ann-arbor)
- United Association (ann-arbor)
- United Auto Workers (ann-arbor)
- United Students Against Sweatshops (ann-arbor)
- Washtenaw County Workers Center (ann-arbor)