| Business | Phone |
| California School Employees 326 W Katella Ave # E, Orange 92867 | (714) 532-3766 |
| California Teachers Assn 281 N Rampart St # A, Orange 92868 | (714) 978-8861 |
| Carpenter's 1918 W Chapman Ave # 200, Orange 92868 | (714) 978-6232 |
| Communications Workers-America 140 S Flower St, Orange 92868 | (714) 978-9510 |
| Afscme Local 2076 550 E Chapman Ave, Orange 92866 | (714) 997-2076 |
| Afscme Local 3299 1918 W Chapman Ave # 205, Orange 92868 | (714) 634-1449 |