| Business | Phone |
| Aess Inc 330 Rancheros Dr # 202, San Marcos 92069 | (760) 752-7718 |
| Mdi Staffing Inc 310 Via Vera Cruz # 211, San Marcos 92078 | (760) 591-7975 |
| Manpower Inc 801 W San Marcos Blvd, San Marcos 92078 | (760) 736-7080 |
| Kelly Services Inc 330 Rancheros Dr # 130, San Marcos 92069 | (760) 736-4831 |