| Business | Phone |
| Payroll Control Systems Phoenix 85016 | (602) 522-9800 |
| Metro Phoenix Human Resource 111 W Monroe St, Phoenix 85003 | (602) 417-8963 |
| Horizon Human Resources 5238 S 31st Pl, Phoenix 85040 | (602) 268-3911 |
| Human Resources 17602 N Black Canyon Hwy, Phoenix 85053 | (602) 795-4592 |