| 415 Construction & Electrical | Raul Del Campo Gonzales | — | (415) 260 0984 | Electricians | San Francisco · San Francisco County | — | — |
| 415 Electric | Gregory Leonard Barnes | — | (415) 578 6000 | Electricians | San Francisco · San Francisco County | — | — |
| 7 Hills Construction | Michael David Conrad | impallari@gmail.com | (415) 565 9447 | Electricians | San Francisco · San Francisco County | — | — |
| 7 Squared Electrical | Quan Pamela | — | (818) 282 0082 | Electricians | San Francisco · San Francisco County | — | — |
| 8 Express Construction | Ming Zhong Liang | — | (415) 306 1919 | Electricians | San Francisco · San Francisco County | — | — |
| A & E Electric | Amorsolo Apostol Asuncion | — | (415) 587 3414 | Electricians | San Francisco · San Francisco County | — | — |
| A - Tech Electric INC | Henry Lin | — | (415) 308 8649 | Electricians | San Francisco · San Francisco County | — | — |
| A 24 Electric Co | Weisberg Edward | — | (415) 664 6611 | Electricians | San Francisco · San Francisco County | — | — |
| A A P T Construction Co | Chan Chi Chiang | — | (510) 621 3673 | Electricians | San Francisco · San Francisco County | — | — |
| A B C City Electric | Hau Sum Chan | — | (415) 860 8372 | Electricians | San Francisco · San Francisco County | — | — |
| A G L Engineering INC | Christopher Ka Yui Wu | — | (415) 760 0015 | Electricians | San Francisco · San Francisco County | — | — |
| A J Electric | John Paul Cannon | — | (415) 586 0191 | Electricians | San Francisco · San Francisco County | — | — |
| A M Rocca INC | Annette Marie Rocca | — | (415) 239 0484 | Electricians | San Francisco · San Francisco County | — | — |
| A R Electric | Alexander Leonidovich Rozentsvayg | — | (650) 238 8484 | Electricians | San Francisco · San Francisco County | — | — |
| A Whole New Light | A Whole New Light | candles@awholenewlight.com | (415) 412 8960 | Electricians | San Francisco · San Francisco County | — | — |
| Aaa Electric Co | Arafat K Al-Ali | — | (415) 570 1014 | Electricians | San Francisco · San Francisco County | — | — |
| Abadub Construction INC | Alexandr Polcanov | sales@abadubconstruction.com | (628) 222-4891 | Electricians | San Francisco · San Francisco County | — | — |
| AC Power Electrical Contractor | Abraham Castaneda | — | (707) 213 0397 | Electricians | San Francisco · San Francisco County | — | — |
| Accend Electric | Paula Phouilang Wong | — | (408) 784 2345 | Electricians | San Francisco · San Francisco County | — | — |
| Ace Wiring Electric INC | Diego Gallegos | office@acewiringelectric.com | (415) 656 6954 | Electricians | San Francisco · San Francisco County | — | — |
| Aguilar Electric | Margarito R Aguilar Mejia | office@aguilarelectricsf.com | (415) 470 7375 | Electricians | San Francisco · San Francisco County | — | — |
| Ai Electric Corp | Daniel Wei An Kwan | — | (415) 336 2793 | Electricians | San Francisco · San Francisco County | — | — |
| Aj Electric | Jiang Wei An | john@aj-electric.com | (415) 859 8828 | Electricians | San Francisco · San Francisco County | — | — |
| Al J Electric | Jue Alan | — | (415) 385 0608 | Electricians | San Francisco · San Francisco County | — | — |
| Albion Power Company INC | Charles Anthony Adams | — | (415) 558 1786 | Electricians | San Francisco · San Francisco County | — | — |
| Alcides Electric Ja | Jorge Alcides Pena Arbues | — | (415) 573 4718 | Electricians | San Francisco · San Francisco County | — | — |
| Alex Construction & Electric INC | Xiao Hui Wu | — | (415) 602 0139 | Electricians | San Francisco · San Francisco County | — | — |
| All City Electric | Robert Kaw Hing Young | — | (650) 865 0562 | Electricians | San Francisco · San Francisco County | — | — |
| All Phase Electrical Incorporated | Carlos Francisco Najarro-calderon | — | (415) 533 6327 | Electricians | San Francisco · San Francisco County | — | — |
| All Trusty Builders | Sam Xu | — | (415) 987 7713 | Electricians | San Francisco · San Francisco County | — | — |
| Allen Electric | Joshua David Allen | — | (650) 888 0434 | Electricians | San Francisco · San Francisco County | — | — |
| Aloha Builders Company | Shi Xifeng | — | (415) 990 9719 | Electricians | San Francisco · San Francisco County | — | — |
| Alpha Construction & Solutions INC | Wei Ouyang | — | (415) 828 9984 | Electricians | San Francisco · San Francisco County | — | — |
| Amac Electrical | Alan Paul Mc Carthy | — | (415) 725 0372 | Electricians | San Francisco · San Francisco County | — | — |
| American Building Contractor | American Building Contractor | — | (415) 531 2468 | Electricians | San Francisco · San Francisco County | — | — |
| Amherst Associates Construction Management INC | Kai Cheng Tang | — | (415) 271 8828 | Electricians | San Francisco · San Francisco County | — | — |
| Amir Electric | Rahmani Ghasem | — | (408) 300 8160 | Electricians | San Francisco · San Francisco County | — | — |
| Andy Electric Services | Sammy Lamsang Lau | — | (415) 359 8938 | Electricians | San Francisco · San Francisco County | — | — |
| Ann Enea | Ann Enea | — | (415) 377 6129 | Electricians | San Francisco · San Francisco County | — | — |
| Anton Electric | Jaber Anton | — | (415) 531 3687 | Electricians | San Francisco · San Francisco County | — | — |