Amalgamated Transit Union
International Brotherhood of Electrical Workers
Faculty Professionals Western Washington University, AFT
International Association of Fire Fighters
Laborers International Union
National Association of Letter Carriers
International Brotherhood of Teamsters
Professional & Technical Engineers
International Association of Machinists & Aerospace Workers
Office & Professional Emplyees International Union
Operating Engineers
Painters District Council 
Retired Public Employees Council
Sheet Metal Workers 
UNITE/HERE
United Faculty of Western Washington, AFT
United Food & Commercial Workers, UFCW
United Steelworkers
United Union of Roofers & Waterproofers
Washington Federation of State Employees, AFSCME
Washington State Allied Printing
Washington State Council of County & City Employees, AFSCME 
Washington State Nurses Association
Pensioners Association ILWU
International Association of Fire Fighters