| A & F Electrical Construction INC | Craig Ryan Fry | — | (707) 257 1286 | Electricians | Napa · Napa County | — | — |
| A & L Electric | Anthony Nicholas Ratto | — | (209) 483 2148 | Electricians | Napa · Napa County | — | — |
| A R K Electric | Aaron Roy Kingsford | — | (707) 255 4394 | Electricians | Napa · Napa County | — | — |
| Abbott Custom Electric | Caymus Jordan Abbott | contact@abbottcustomelectric.com | (707) 363 8364 | Electricians | Napa · Napa County | — | — |
| Ac/dc Electric INC | Salvador Jr| Alcaraz Sal Alcaraz | — | (408) 368 1034 | Electricians | Napa · Napa County | — | — |
| Acme Electric | Jimmy Dowl Hollabaugh | — | (707) 974 4013 | Electricians | Yountville · Napa County | — | — |
| Adams Electric INC | Carter Glenn Williams | — | (707) 252 4280 | Electricians | Napa · Napa County | — | — |
| Alden Electric Co | Kevin Alden Miller | curt@aldenelectric.com | (707) 313 5221 | Electricians | Napa · Napa County | — | — |
| Amato Electric | Thomas Joseph Amato | — | (707) 888 7557 | Electricians | St Helena · Napa County | — | — |
| American Electric | Jeremiah Daniel Bennett | — | (707) 319 2599 | Electricians | Napa · Napa County | — | — |
| Apex Electrical LLC | Salvador Jr Alcaraz | — | (707) 332 3832 | Electricians | Napa · Napa County | — | — |
| B Q P Construction | Sok Yung | — | (510) 282 9767 | Electricians | American Canyon · Napa County | — | — |
| Bernal Electric INC | Felipe Alejandro Gonzalez Bernal | — | (707) 815 8281 | Electricians | Napa · Napa County | — | — |
| Blue Sky Utility Construction | Donald Richard Glick | — | (888) 242 6656 | Electricians | Napa · Napa County | — | — |
| Bohan Electric | Derek Evan Bohan | — | (707) 708 6136 | Electricians | Calistoga · Napa County | — | — |
| Brady Mitchell Construction INC | Brady Jay Mitchell | — | (707) 486 2514 | Electricians | Napa · Napa County | — | — |
| Brian Allen | Brian Allen | — | (707) 227 7197 | Electricians | Napa · Napa County | — | — |
| Brian Berger | Brian Berger | interested@domainmarket.com | (415) 559 2707 | Electricians | Napa · Napa County | — | — |
| Buxton Electric | Brandon William Buxton | — | (707) 758 6738 | Electricians | Napa · Napa County | — | — |
| Caddell Nova A Joint Venture | Group INC Nova | — | (707) 265 1122 | Electricians | Napa · Napa County | — | — |
| Cameron Electric | Zachary Alan Cameron | — | (707) 666 2257 | Electricians | Napa · Napa County | — | — |
| Christman Electrical Contracting | Phillip Rudolph Iv Christman | info@christmanelectricalcontracting.com | (707) 332 2814 | Electricians | Napa · Napa County | — | — |
| Ck Electrical INC | Charles Waylon Kuhn | — | (707) 227 5683 | Electricians | Napa · Napa County | — | — |
| Clerici Construction INC | Sam Carlo Clerici | — | (707) 246 8387 | Electricians | American Canyon · Napa County | — | — |
| Code 3 Electric INC | Jayson Andrew Uribe | — | (707) 249 8933 | Electricians | Angwin · Napa County | — | — |
| Cortes Electric | Cortes Gonzalez Antonio | — | (707) 210 7225 | Electricians | Napa · Napa County | — | — |
| Cross Valley Construction | Robert Thurston Tillinghast | — | (707) 494 3811 | Electricians | Napa · Napa County | — | — |
| D A W Electric INC | Diyaa A Alwehbeh | — | (415) 871 5356 | Electricians | Napa · Napa County | — | — |
| D Bess Pump & Well Elect | David William Bess | — | (707) 337 3851 | Electricians | Napa · Napa County | — | — |
| D E S Builders | Michael Gordon Odom | — | (707) 226 7600 | Electricians | Napa · Napa County | — | — |
| D G H Electric | Darwin Gary Healy | — | (707) 738 1508 | Electricians | Napa · Napa County | — | — |
| D K B Electric INC | Kim Calles Perez | — | (707) 944 0655 | Electricians | Napa · Napa County | — | — |
| Dap Power Systems INC | David Anthony Purscell | — | (707) 304 4309 | Electricians | Napa · Napa County | — | — |
| David Patrick Electric | David Michael Patrick | — | (707) 254 5165 | Electricians | Napa · Napa County | — | — |
| Degarmo's Custom Wood Works INC | Richard Allan De Garmo | — | (707) 225 5059 | Electricians | Napa · Napa County | — | — |
| Degraw Electrical Contractors | Brandon Allen Degraw | — | (707) 363 1428 | Electricians | Napa · Napa County | — | — |
| Delcomp Electric | James Albert Ii Lehman | — | (707) 337 4195 | Electricians | Napa · Napa County | — | — |
| Dependable Electrical Services INC | Scott E Dunbarr | jonpinhorn.typedesign@gmail.com | (707) 815 0896 | Electricians | Napa · Napa County | — | — |
| Don Pridmore & Son Construction INC | Nanette Rose Wheeler | — | (707) 226 7093 | Electricians | Napa · Napa County | — | — |
| Dr Electric | Donal Joseph Ryan | — | (415) 794 9664 | Electricians | American Canyon · Napa County | — | — |