| Business | Phone |
| Borick Electric 5255 Highway 49 N # B, Mariposa 95338 | (209) 966-7744 |
| Brentwood Electric 5216 E Whitlock Rd, Mariposa 95338 | (209) 966-4985 |
| Richmond Electric Mariposa 95338 | (209) 742-2024 |
| Summit Electric 5839 Darrah Rd, Mariposa 95338 | (209) 966-2039 |
| T J Electric 4218 Woodview Ln, Mariposa 95338 | (209) 966-4218 |
| Theodore Electric Co 4103 Triangle Rd, Mariposa 95338 | (209) 742-7895 |
| Wirenuts Electric Mariposa 95338 | (209) 966-6887 |