| Business | Phone |
| B & B Electric 143 N Pacific St, San Marcos 92069 | (760) 744-3561 |
| Chambers Electric Inc Po Box 2156, San Marcos 92079 | (760) 598-5498 |
| Cline Electric 1222 Jade Pl, San Marcos 92069 | (760) 753-4487 |
| El Camino Electric 565 Golf Glen Dr, San Marcos 92069 | (760) 510-2761 |
| Electric Cal Partners 1615 S Rancho Santa Fe Rd # C, San Marcos 92078 | (760) 736-6033 |
| Eclectic Electric 1190 Huntington Rd, San Marcos 92078 | (760) 295-3116 |
| Alison Electric San Marcos 92069 | (760) 591-2501 |
| Southern Contracting Co 559 N Twin Oaks Valley Rd, San Marcos 92069 | (760) 744-0760 |
| Robeck Electrical Maintenance 1070 Commerce St # C, San Marcos 92078 | (760) 744-6880 |
| Mc Namara Pump & Electric 120 N Pacific St # A2, San Marcos 92069 | (760) 744-1895 |
| Goodman Electric & Lighting 830 Saint Sava Pl, San Marcos 92069 | (760) 735-8733 |
| Integrity Electric 1435 Palomar Dr, San Marcos 92069 | (760) 839-1941 |
| Jaguar Electric 802 N Twin Oaks Valley Rd, San Marcos 92069 | (760) 798-0036 |
| La Belle Electric Po Box 458, San Marcos 92079 | (760) 510-6710 |
| Kiel Electric 767 Indian Summer Pl, San Marcos 92069 | (760) 739-1450 |