| Business | Phone |
| Associated Students Inc 333 S Twin Oaks Valley Rd, San Marcos 92096 | (760) 750-4990 |
| Child Care Romania 1905 Diamond St # B, San Marcos 92078 | (760) 752-3113 |
| Lake San Marcos Community Assn 1145 San Marino Dr # 125, San Marcos 92078 | (760) 744-4306 |