| Business | Phone |
| Amalgamated Transit Union 435 Orange Show Ln # 201, San Bernardino 92408 | (909) 885-7767 |
| Carpenters 2050 N Mount Vernon Ave, San Bernardino 92411 | (909) 887-2524 |
| Cement Masons Local 500 620 W Mill St, San Bernardino 92410 | (909) 884-1501 |
| Communications Workers-America 114 E Airport Dr # 105, San Bernardino 92408 | (909) 890-1766 |
| Culinary Workers Bartenders 393 Athol St, San Bernardino 92401 | (909) 825-3862 |
| Healthcare Employees Union 1274 S Waterman Ave, San Bernardino 92408 | (909) 890-3566 |
| Hod Carriers & Laborers 104 W Benedict Rd, San Bernardino 92408 | (909) 884-5321 |
| Ibew 955 Jefferson Ave, San Bernardino 92410 | (909) 884-9816 |
| Iron Workers 252 Hillcrest Ave, San Bernardino 92408 | (909) 884-5500 |
| National Association Of Letter 934 W 40th St, San Bernardino 92407 | (909) 882-0429 |
| San Bernardino Fire Fighters 371 W 14th St, San Bernardino 92405 | (909) 888-3511 |
| San Bernardino Public Employee 433 N Sierra Way, San Bernardino 92410 | (909) 889-8377 |