| AC Electric & Custom Design Lighting INC | Andrew Scott Chapman | — | (209) 382 6303 | Electricians | Copperopolis · Calaveras County | — | — |
| Angels Electric | Scott Anthony Selke | — | (209) 768 9338 | Electricians | Murphys · Calaveras County | — | — |
| Arnold Electrical INC | Richard Warren Sohm | mo79ae@gmail.com | (209) 795 2529 | Electricians | Arnold · Calaveras County | — | — |
| Arthur Electrical | Scott Brian Arthur | — | (209) 450 8197 | Electricians | Vallecito · Calaveras County | — | — |
| Ballou Electric INC | Howard Marlin Ballou | — | (209) 814 0662 | Electricians | Murphys · Calaveras County | — | — |
| Bayless Electrical Technology | Robert Ronald Bayless | — | (209) 786 6446 | Electricians | Valley Springs · Calaveras County | — | — |
| Big Valley Electric | James Albert Jr Coyle | info@bigvalleyelectric.com | (209) 986 3550 | Electricians | Copperopolis · Calaveras County | — | — |
| Brighter Electric Services | Dallas Michael Haaland | — | (209) 606 3714 | Electricians | San Andreas · Calaveras County | — | — |
| Bruce Whittle Electric | Bruce L Whittle | — | (209) 736 0465 | Electricians | Angels Camp · Calaveras County | — | — |
| C C Electrical | Christopher Lee Cottle | — | (209) 603 4605 | Electricians | Valley Springs · Calaveras County | — | — |
| C D K Electric | Charles Daniel Klein | — | (925) 409 0346 | Electricians | Murphys · Calaveras County | — | — |
| C K Electric | C K Electric | — | (760) 749-3214 | Electricians | Valley Center · Calaveras County | — | — |
| Central Foothill Electric LLC | Stuart Jack Gobble | — | (925) 437 2682 | Electricians | Valley Springs · Calaveras County | — | — |
| Christopher's Electrical | Christopher Michael Bruce | — | (209) 712 8136 | Electricians | Arnold · Calaveras County | — | — |
| Citybright Electric LLC | Macias Alex Silva | — | (510) 775 3530 | Electricians | Valley Springs · Calaveras County | — | — |
| Copper Crest Electric | Copper Crest Electric | — | (760) 800-0021 | Electricians | Bonsall · Calaveras County | — | — |
| David Ayers Electric | David Lee Jr Ayers | — | (209) 649 8068 | Electricians | Valley Springs · Calaveras County | — | — |
| David Edward Fowler | David Edward Fowler | — | (415) 259 9791 | Electricians | Arnold · Calaveras County | — | — |
| Dc Engineering | Dc Engineering | — | (209) 923 1494 | Electricians | Valley Springs · Calaveras County | — | — |
| Electek | Martin P Szymanski | info@electek.ca | (519) 383-0333 | Electricians | Copperopolis · Calaveras County | — | — |
| Energy Lane Corp | Jeffery David Lane | — | (209) 912 9267 | Electricians | Wallace · Calaveras County | — | — |
| Fox Security & Communications INC | Randy Gene Fox | — | (650) 631 7297 | Electricians | Arnold · Calaveras County | — | — |
| Freddie Electric | Fredrick Fernando Artiaga | — | (209) 795 2220 | Electricians | Avery · Calaveras County | — | — |
| Freedom Energy Corp | Timothy Michael Dondero | — | (209) 712 1787 | Electricians | Murphys · Calaveras County | — | — |
| Gaspers Electric | Gerald Martin Gaspers | — | (209) 601 1171 | Electricians | Valley Springs · Calaveras County | — | — |
| Gold Electric INC | James Robert Heryford | info@gold-electric.com | (209) 728 3371 | Electricians | Murphys · Calaveras County | — | — |
| Hi-power Energy LLC | Ryan Leonard Cross | mslish@hipowerenergy.com | (909) 754 4855 | Electricians | Valley Springs · Calaveras County | — | — |
| Holman Electric | Chad Alan Holman | — | (209) 406 7668 | Electricians | Valley Springs · Calaveras County | — | — |
| K And D Electric | Kenneth Raleigh Wright | — | (209) 256 0895 | Electricians | West Point · Calaveras County | — | — |
| Killip Pump Repair | Killip Pump Repair | — | (209) 256 1158 | Electricians | Mokelumne Hill · Calaveras County | — | — |
| Level Up Electrical | James Edward Jr Sacher | — | (209) 743 2918 | Electricians | Mountain Ranch · Calaveras County | — | — |
| Lusk Electric | Lusk Electric | 4luskelectric@gmail.com | (209) 900-7666 | Electricians | Copperopolis · Calaveras County | — | — |
| M A D Electric | Michael Bruce Madrid | — | (209) 304 4138 | Electricians | Valley Springs · Calaveras County | — | — |
| M K N Enterprises | Mark Elton Nunnelley | — | (209) 728 8815 | Electricians | Murphys · Calaveras County | — | — |
| Maul Electric | John Jr Maul | — | (209) 404 0260 | Electricians | Hathaway Pines · Calaveras County | — | — |
| Maximum Power INC | David Edward Steele | — | (209) 824 2741 | Electricians | San Andreas · Calaveras County | — | — |
| Metildi Electric INC | Craig Thomas Metildi | — | (916) 337 6744 | Electricians | Murphys · Calaveras County | — | — |
| Moore Electrical Services INC | Michael Calvin Moore | — | (209) 688 4280 | Electricians | Valley Springs · Calaveras County | — | — |
| Motherlode Fire Protection LLC | Robert Lee Rodgers Singleton | — | (209) 728 7692 | Electricians | Angels Camp · Calaveras County | — | — |
| Nickel Electric LLC | Matthew Hester Nickel | — | (209) 738 9050 | Electricians | Mokelumne Hill · Calaveras County | — | — |