| Business | Phone |
| Boykin Electric Co 1123 Pear Tree Ln, Napa 94558 | (707) 252-2988 |
| Davis Myles Electric Inc 3281 Solano Ave, Napa 94558 | (415) 399-0999 |
| Long Electric 870 Napa Valley Corporate Wy#D, Napa 94558 | (707) 252-3512 |
| Napa Electric 2240 Brown St, Napa 94558 | (707) 252-6611 |
| A & F Electric 4428 Rockwood Ave, Napa 94558 | (707) 257-1286 |
| Acme Electric Napa 94558 | (707) 226-9477 |
| Adams Electric Napa 94558 | (707) 252-4280 |
| Advanced Electrical Systems 6 Packard Ct, Napa 94558 | (707) 252-7041 |
| Aerie Electric 2104 Parrish Rd, Napa 94559 | (707) 255-9200 |
| Alameda Electric 4493 Meadowlark Dr, Napa 94558 | (707) 253-0213 |
| American Electrical Po Box 3930, Napa 94558 | (707) 226-1101 |
| Andromeda Electric Inc 3030 Stadium Ave, Napa 94558 | (707) 255-6404 |
| Antony's Electric Inc Napa 94558 | (707) 251-0655 |
| Blaziek Electric Napa 94558 | (707) 254-0474 |
| Cal-West Electric 1096 Stonebridge Dr, Napa 94558 | (707) 224-7504 |
| Cupertino Electric Napa 94558 | (707) 258-8313 |
| D J Electric 2371 Eva St, Napa 94559 | (707) 226-1734 |
| Dkb Electric 3165 Solano Ave, Napa 94558 | (707) 944-0655 |
| Doucette Electric Po Box 10576, Napa 94581 | (707) 255-8467 |
| Ellis Lighting & Power 2290 Adrian St, Napa 94558 | (707) 258-6275 |
| Four Star Electric 1342 Linden St, Napa 94559 | (707) 224-9561 |
| Hicks & Sons Electric Po Box 3581, Napa 94558 | (707) 252-7395 |
| Hosking Electric 1221 Dillon Dr, Napa 94558 | (707) 255-6270 |
| Hyatt Electric Co Napa 94558 | (707) 226-7800 |
| L L Poli Electric 16 Quicksilver Ln, Napa 94558 | (707) 258-0717 |
| Lewis Electric 2412 3rd St, Napa 94559 | (707) 226-7879 |
| Logan Industries Inc 40 Garfield Ln, Napa 94558 | (707) 226-5004 |
| Mele Construction 205 Shirley Ct, Napa 94558 | (707) 253-7034 |
| Mosley Electric 266 Sugarloaf Dr, Napa 94558 | (707) 966-1412 |
| Myles Davis Electric Inc 3281 Solano Ave, Napa 94558 | (707) 748-0662 |
| Pacific Electric Accounting 2325 1st St, Napa 94559 | (707) 255-6886 |
| Pelley Can 1696 Silverado Trl # A, Napa 94559 | (707) 224-2946 |
| Pete Gonzalez Electric 2043 Lone Oak Ave, Napa 94558 | (707) 252-7383 |
| Poli Ll Electric 16 Quicksilver Ln, Napa 94558 | (707) 258-1309 |
| Reyff Electric Inc Napa 94558 | (707) 224-2404 |
| Richard A Heaps Electrical 918 Enterprise Way # E, Napa 94558 | (707) 257-8857 |
| Silverado Electric 845 Sousa Ln, Napa 94559 | (707) 252-0450 |
| Spartan Electric 2186 Monticello Rd, Napa 94558 | (707) 226-9330 |
| Tri-County Inc 2475 Stockton St, Napa 94559 | (707) 226-6117 |
| Wolf Electric Napa 94558 | (707) 255-8574 |
| Wooly's Electric Svc 2178 Shurtleff Ave, Napa 94559 | (707) 252-2644 |