| Business | Phone |
| Construction & General Lbrrs 2063 Research Dr, Livermore 94550 | (925) 455-8292 |
| District Council 2705 Constitution Dr, Livermore 94551 | (925) 245-1080 |
| Millwrights Local Union 102 3095 Independence Dr, Livermore 94551 | (925) 294-5350 |
| Operating Engineers Local 250 N Canyon Pkwy, Livermore 94551 | (925) 454-4000 |