| 3 Kings Builders LLC | Mark Andrew Reyes | mail@kings-builders.com | (415) 713 6223 | GC, remodel, ADU | Napa · Napa County | — | — |
| 707 Ramz Construction INC | Francisco Ramirez-Guzman | daniel@ramzconstruction.com | (707) 927 6618 | GC, remodel, ADU | Napa · Napa County | — | — |
| A & J Quality General Construction Services | Jacqueline Lourdes Romero | — | (510) 871 5842 | GC, remodel, ADU | American Canyon · Napa County | — | — |
| A & R Construction | Richard James Hasty | — | (707) 301 7124 | GC, remodel, ADU | Napa · Napa County | — | — |
| A G Isdahl Construction INC | Andy George Isdahl | — | (707) 975 7431 | GC, remodel, ADU | Rutherford · Napa County | — | — |
| A J F Contracting INC | Aaron John Fernandez | — | (707) 319 4190 | GC, remodel, ADU | Napa · Napa County | — | — |
| A M P Construction | Robert David Poppe | — | (707) 337 4115 | GC, remodel, ADU | Napa · Napa County | — | — |
| A P C Services Of Napa | Robert Kenneth Carter | — | (707) 312 0417 | GC, remodel, ADU | Napa · Napa County | — | — |
| A V Construction Co | Alec Lyman Gingery | — | (707) 974 7400 | GC, remodel, ADU | Calistoga · Napa County | — | — |
| Aaa Next Level Construction | Stefan Michael Walkowiak | — | (619) 450 9438 | GC, remodel, ADU | Napa · Napa County | — | — |
| Abbey Carpets Unlimited | John Stephen Hartley | — | (707) 261 8000 | GC, remodel, ADU | Napa · Napa County | — | — |
| Abernethy Brothers Construction INC | James Patrick Abernethy | — | (707) 226 2605 | GC, remodel, ADU | Napa · Napa County | — | — |
| Abernethy Construction INC | Charles Michael Abernethy | — | (707) 815 9120 | GC, remodel, ADU | Napa · Napa County | — | — |
| Acg Construction | Gail Yvonne Otis | — | (707) 258 6277 | GC, remodel, ADU | Napa · Napa County | — | — |
| Adams Construction | Kenneth Nick Adams | — | (707) 648 1768 | GC, remodel, ADU | American Canyon · Napa County | — | — |
| Adl Construction | De Leon Arturo | — | (707) 738 8206 | GC, remodel, ADU | Napa · Napa County | — | — |
| Advanced Construction Services Group LLC | Robert Duane Council | — | (707) 347 9887 | GC, remodel, ADU | Napa · Napa County | — | — |
| Advanced Construction Techniques | Normand Ernest Jr Forcier | contact@agtgroup.com | (707) 481 7392 | GC, remodel, ADU | Napa · Napa County | — | — |
| Ag Builders LLC | Alejandro Javier Gonzalez Barragan | — | (707) 639 2020 | GC, remodel, ADU | Napa · Napa County | — | — |
| Ag Construction | Guandulain Antonio | — | (707) 235 6364 | GC, remodel, ADU | Napa · Napa County | — | — |
| Alacin Enterprises INC | Alan Joseph Skinner | — | (707) 224 5912 | GC, remodel, ADU | Napa · Napa County | — | — |
| Alan Ogden | Alan Ogden | — | (707) 812 8926 | GC, remodel, ADU | Napa · Napa County | — | — |
| Alexian Construction | Alexian Arameh | — | (415) 539 6767 | GC, remodel, ADU | Napa · Napa County | — | — |
| Almaraz Construction INC | Menfil Freiny Almaraz | — | (707) 235 2338 | GC, remodel, ADU | Napa · Napa County | — | — |
| Alpine Premium Construction | Arsenic Aleksandra | — | (408) 859 3466 | GC, remodel, ADU | Pope Valley · Napa County | — | — |
| Altura Construction INC | Michael Joseph Richardson | — | (707) 255 7790 | GC, remodel, ADU | Napa · Napa County | — | — |
| Ama Pro Builder | Ama Pro Builder | — | (707) 927 6101 | GC, remodel, ADU | Napa · Napa County | — | — |
| American Canyon Builders INC | Ricci Sal Armijo | — | (707) 246 0343 | GC, remodel, ADU | American Canyon · Napa County | — | — |
| American Eagle Ent | Pamela Jean Kincanon | aebleachers@gmail.com | (916) 434 6561 | GC, remodel, ADU | Napa · Napa County | — | — |
| American Sunny Construction | Jianfu Chen | — | (707) 997 0037 | GC, remodel, ADU | American Canyon · Napa County | — | — |
| Anthony Dean Gliedt | Anthony Dean Gliedt | — | (925) 516 8717 | GC, remodel, ADU | Napa · Napa County | — | — |
| Aqueduct Plumbing | Aqueduct Plumbing | — | (707) 299 9220 | GC, remodel, ADU | St Helena · Napa County | — | — |
| Associated Building Repair & Maintenance | Associated Building Repair & Maintenance | — | (707) 495 4011 | GC, remodel, ADU | Napa · Napa County | — | — |
| B B I Construction | Brandon Buehler Imhoff | bids@bbiconstruction.com | (707) 312 1118 | GC, remodel, ADU | Napa · Napa County | — | — |
| B-line Tile & Stone | B-line Tile & Stone | — | (707) 312 0690 | GC, remodel, ADU | Napa · Napa County | — | — |
| Bakker Construction | Robert Frank Bakker | info@bakkerconstruction.com | (707) 480 2674 | GC, remodel, ADU | Napa · Napa County | — | — |
| Balcal Construction INC | Maximino Garcia Ballines | info@balcalconstruction.com | (707) 226 2690 | GC, remodel, ADU | Napa · Napa County | — | — |
| Basil Construction INC | Jordan Alexander Fischbach | jordan@basilconstruction.com | (707) 815 9385 | GC, remodel, ADU | Napa · Napa County | — | — |
| Bay Village Builders INC | Justin Corbin La Monte | — | (707) 310 2356 | GC, remodel, ADU | Napa · Napa County | — | — |
| Bell Construction INC | Joshua Maxwell Bell | joshoua@bellconstruction.com | (707) 738 7770 | GC, remodel, ADU | Napa · Napa County | — | — |