| Business | Phone |
| Palomar Faculty Federation 225 N Rancho Santa Fe Rd, San Marcos 92069 | (760) 471-5645 |
| National Air Traffic 751 Rancheros Dr # 1, San Marcos 92069 | (760) 752-3400 |
| Laborers International Union 140 W San Marcos Blvd, San Marcos 92069 | (760) 744-3515 |