- UFCW International Union
- International Brotherhood of Teamsters
- Teamsters California State Council of Cannery and Food Processing Unions
- International Longshore and Warehouse Union
- ILWU Local 26
- IUOE Local 501
- Teamsters Local 150
- Teamsters Local 315
- Teamsters Local 848
- Teamsters Local 952
- UFCW Local 5
- UFCW 8-Golden State
- UFCW Local 75
- UFCW Local 99
- UFCW Local 135
- UFCW Local 324
- UFCW Local 367
- UFCW Local 648
- UFCW Local 711
- UFCW Local 770
- UFCW Local 1167
- UFCW Local 1428
- UFCW Local 1439
- UFCW Local 1442
- UFCW Local 1529
- United Council of UFCW Local Unions
- IAMAW District Lodge 190
- IAM Automotive Machinists Coordinating Committee of Northern California
- BCTGM Local 85
