| Business | Phone |
| California State Employees 10600 N Trademark Pkwy, Rancho Cucamonga 91730 | (909) 466-5044 |
| Cruz & Assoc Inc 10201 Trademark St, Rancho Cucamonga 91730 | (909) 980-8736 |
| R Medina & Sons Farm Labor 7921 Selma Ave, Rancho Cucamonga 91730 | (909) 481-2917 |
| United Steelworkers America 10722 Arrow Rte # 708, Rancho Cucamonga 91730 | (909) 466-0665 |
| United Transportation Union 7365 Carnelian St # 227, Rancho Cucamonga 91730 | (909) 481-7261 |