| Business | Phone |
| Gleffe Electric 1760 Howell Mountain Rd, Angwin 94508 | (707) 965-3606 |
| Mc Namara Electric 310 West Ln, Angwin 94508 | (707) 965-9168 |
| Rock & Sons Inc 319 College Ave, Angwin 94508 | (707) 965-2889 |
| Williams Electric 1180 Crestmont Dr, Angwin 94508 | (707) 963-2563 |