Labor Unions locations near Castro Valley, CA

Showing 1–10 of 10 results

This page indexes 10 labor unions listings for Castro Valley, CA, covering 4 ZIP codes. Details on this page were last refreshed Aug 2026.

Updated Jul 2026

Carpenters Union Local 713

Labor Organizations

📍 1050 Mattox Rd, Hayward, CA, 94541

📞 510-581-7817

🌐 carpenters713.unionnet.org

American Postal Worker Union

Labor Organizations

📍 24438 Santa Clara St, Hayward, CA, 94541

📞 510-786-3450

Updated Aug 2026

Teamsters Union Local 853

Labor Organizations

📍 2100 Merced St Ste B, San Leandro, CA, 94577

📞 510-895-8853

🌐 teamsters633.com

Updated Jul 2026

Electrical Workers Union Local 595

Labor Organizations

📍 6250 Village Pkwy, Dublin, CA, 94568

📞 925-556-0595

🌐 ibew.org

Sheet Metal Workers Local Union

Siding Contractors

📍 1720 Marina Blvd, San Leandro, CA, 94577

📞 510-895-8660

Security Officers Union Seiu Local 24 7

Labor Organizations

📍 2404 Merced St, San Leandro, CA, 94577

📞 510-261-2035

Baker's Union Local 125

Labor Organizations

📍 14144 Doolittle Dr, San Leandro, CA, 94577

📞 510-357-3201

🌐 blocal125.com

Updated Aug 2026

Warehouse Mail Order & Retail Employee's Local Union 853 IBT

Labor Organizations

📍 2100 Merced St, San Leandro, CA, 94577

📞 510-895-8853

🌐 teamsters853.org

Shipyard & Marine Shop Labors Union Local 886

Labor Organizations

📍 8400 Enterprise Way, Oakland, CA, 94621

📞 510-632-0161

Updated Jul 2026

Amalgamated Transit Union

Labor Organizations

📍 8460 Enterprise Way, Oakland, CA, 94621

📞 510-635-0192

🌐 atu.org

Related Categories
Labor Organizations Siding Contractors
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