| Business | Phone |
| Corridor Electric 2102 Martins Crst, San Marcos 78666 | (512) 392-6876 |
| Current Electric Inc 500 Broadway St, San Marcos 78666 | (512) 353-0141 |
| Electric Works 1000 River Rd, San Marcos 78666 | (512) 396-1777 |
| Fox Service Co San Marcos 78666 | (512) 754-9013 |
| Haas Electric 603 Blanco St, San Marcos 78666 | (512) 787-8982 |
| Harrell Electric 915 Thousand Oaks Loop, San Marcos 78666 | (512) 353-4287 |
| Preston Electric San Marcos 78666 | (512) 557-5186 |
| R Hart Home Restoration Svc 2805 Arroyo Doble, San Marcos 78666 | (512) 738-1108 |
| Robert Cotner Electric Inc 116 Texas Ave, San Marcos 78666 | (512) 392-5580 |
| Stewart's Electrical Contr Inc 2820 N I H 35, San Marcos 78666 | (512) 396-3311 |
| Ted Breihan Electric Co 118 S Edward Gary St, San Marcos 78666 | (512) 396-3300 |
| Zone Electric Inc 2649 Rolling Oaks, San Marcos 78666 | (512) 805-0036 |