| Business | Phone |
| Carpenters' Local # 1532 927 E College Way, Mount Vernon 98273 | (360) 424-1532 |
| Laborers Local 1221 Riverside Dr C, Mount Vernon 98273 | (360) 336-6159 |
| Teamster Union 420 W Gates St, Mount Vernon 98273 | (360) 336-3129 |
| United Food & Commercial Wrkrs 1510 N 18th St, Mount Vernon 98273 | (360) 424-5655 |