American Federation of Government Employees, AFGE Local 1546
American Federation of State, County, and Municipal Employees, AFSCME Local 10
American Federation of State, County, and Municipal Employees, AFSCME Local 146
American Federation of State, County, and Municipal Employees, AFSCME Local 2019
American Federation of State, County, and Municipal Employees, AFSCME Local 2620
American Federation of State, County, and Municipal Employees, AFSCME Local 2703
American Federation of State, County, and Municipal Employees, AFSCME Local 3299
Amalgamated Transit Union, ATU Local 276
Bricklayers, Tilesetters and Allied Craftworkers, BAC Local 3
Bakery, Confectionary, Tobacco Workers and Grain millers IU, BCTGM Local 85

California Faculty Association

California Nurses Association
California School Employees Association, CSEA Chapter 007
California School Employees Association, CSEA Chapter 31
California School Employees Association, CSEA Chapter 56
California School Employees Association, CSEA Chapter 73

California School Employees Association, CSEA Chapter 98
California School Employees Association, CSEA Chapter 252
California School Employees Association, CSEA Chapter 274
California School Employees Association, CSEA Chapter 530
California School Employees Association, CSEA Chapter 541
California School Employees Association, CSEA Chapter 668
California School Employees Association, CSEA Chapter 821

Cement Masons Local 400
Communication Workers of America, CWA Local 9333
Communication Workers of America, CWA Local 9404
Communication Workers of America, CWA Local 9417
Communication Workers of America, CWA Local 39521, Pacific Media Workers Guild
International Federation of Professional and Technical Employees, IFPTE Local 20
International Association of Firefighters, IAFF Local 1243, San Joaquin County Firefighters
International Association of Firefighters, IAFF Local 1289, Modesto City Firefighters
Glass, Molders, Pottery International Union, GMP Local  17
Glass, Molders, Pottery International Union, GMP Local  177
Glaziers, Arch. Metal & Glass Workers, Local 767
International Brotherhood of Electrical Workers, IBEW Local 595
International Brotherhood of Electrical Workers, IBEW Local 684
International Brotherhood of Electrical Workers, IBEW Local 1245
Iron Workers Local 118
Laborers’ International Union of North America, LIUNA Local 73
Laborers’ International Union of North America, LIUNA Local 1130
International Association of Machinists and Aerospace Workers, IAMAW Local 1528
International Association of Machinists and Aerospace Workers, IAMAW Local 1546
International Association of Machinists and Aerospace Workers, IAMAW Local 1781
International Association of Machinists and Aerospace Workers, IAMAW Local 2005
International Association of Machinists and Aerospace Workers, IAMAW Local 2182
American Federation of Musicians, Local 189
Office and Professional Employees International Union, OPEIU Local 3
Office and Professional Employees International Union, OPEIU Local 29
Office and Professional Employees International Union, OPEIU Local 277
Operation Engineers, Local 3, OE3
Painters and Tapers Local Union 487
Union of American Physicians and Dentists, UAPD, AFSCME Local 206
United Association of Plumbers and Pipefitters, UA Local 442
United Union of Roofers, Waterproofers, and Allied Trades, Local 81
Service Employees International Union, SEIU Local 521
Service Employees International Union, SEIU Local 1000
Service Employees International Union, SEIU Local 1021
Service Employees International Union, United Healthcare Workers West, SEIU UHW
Sheet Metal Workers Local 104
Sign & Display Local 510
IUOE Stationary Engineers, Local 39
International Brotherhood of Teamsters, IBT Local 386
International Brotherhood of Teamsters, IBT Local 439
International Brotherhood of Teamsters, IBT Local 601
International Brotherhood of Teamsters, IBT Local 856
International Brotherhood of Teamsters, IBT Local 948
Turlock Emergency Services Association, TEMSA-USW Local 12911
Tuolumne County American Federation of Teachers, Local 6097
Turlock American Federation of Teachers, Local 2424A
United Domestic Workers of America, AFSCME Local 3930
University Council, American Federation of Teachers
United Food and Commercial Workers, UFCW Local 5
United Food and Commercial Workers, UFCW Local 8 – Golden State
United Steelworkers, USW Local 5
United Steelworkers, USW Local 18

Affiliates