| Tom Watkins Construction | Tom David Watkins | — | (209) 273 6297 | GC, remodel, ADU | Jackson · Amador County | — | — |
| Tony Scott Electric Company LLC | Tony Allen Scott | — | (209) 781 5260 | Electricians | Pine Grove · Amador County | — | — |
| Top Of The Line Roofing | Manuel Ivan Barrera Gamboa | — | (209) 256 3625 | Other roofers | Jackson · Amador County | — | — |
| Top Shelf Woodwork | Top Shelf Woodwork | micah@micahrich.com | (209) 417 9082 | Other | Sutter Creek · Amador County | — | — |
| Tremaine's Pump Service | Bryan Grant Hart | — | (209) 304 0843 | Other | Pine Grove · Amador County | — | — |
| Tri Phase Construction | Mike Scott Springer | — | (530) 306 5912 | HVAC | Plymouth · Amador County | — | — |
| Trublue | Michael Edward Gornet | — | (209) 660 9020 | GC, remodel, ADU | Volcano · Amador County | — | — |
| Tyler Nuckton | Tyler Nuckton | — | (916) 496 1378 | Other | Plymouth · Amador County | — | — |
| Unique Partitions | Unique Partitions | — | (916) 870 4328 | Other | Ione · Amador County | — | — |
| Upchurch Electric INC | John Edward Upchurch | — | (209) 274 2343 | Electricians | Ione · Amador County | — | — |
| Valtierra Landscape | Valtierra Landscape | valtierralandscape@gmail.com | (209) 418 4749 | Windows, patio, painters | Jackson · Amador County | — | — |
| Van Ness Construction | Bryon George Van Ness | impallari@gmail.com | (209) 274 4649 | Other roofers | Ione · Amador County | — | — |
| Vicari Electric | Sam David Vicari | sam@vicarielectric.com | (916) 801 9226 | Electricians | Sutter Creek · Amador County | — | — |
| Victory Village Builders | Jesse Mathew Willi Osterhout | info@victoryvillagebuilders.org | (209) 223 2286 | GC, remodel, ADU | Jackson · Amador County | — | — |
| Village Builders | Village Builders | — | (209) 419 0254 | GC, remodel, ADU | Sutter Creek · Amador County | — | — |
| Vinciguerra Construction INC | Wayne Dale Vinciguerra | — | (209) 223 3610 | GC, remodel, ADU | Sutter Creek · Amador County | — | — |
| Volcano Vision INC | Sharon Jane Lundgren | — | (209) 296 7502 | Other | Pine Grove · Amador County | — | — |
| Vox Network Solutions INC | Todd Allen Peiffer | — | (916) 396 3447 | Other | Pine Grove · Amador County | — | — |
| W R P Plumbing | W R P Plumbing | — | (209) 781 5849 | Other | Ione · Amador County | — | — |
| Wagner Custom Closets | Wagner Custom Closets | — | (209) 267 5073 | GC, remodel, ADU | Sutter Creek · Amador County | — | — |
| Watkins Electric | Nathan Dallas Watkins | — | (530) 409 0222 | Electricians | Pioneer · Amador County | — | — |
| Wayne Vent Wash Sol. | Wayne Vent Wash Sol. | — | (601) 212-1686 | Windows, patio, painters | Vista · Amador County | — | — |
| Wayne Watson | Wayne Watson | wayne@waynewatson.com | (209) 304 4983 | GC, remodel, ADU | Pine Grove · Amador County | — | — |
| Wenske Wiring | Wenske Wiring | — | (925) 640 6595 | Electricians | Jackson · Amador County | — | — |
| Whaling Const | Whaling Const | — | (209) 304 2674 | GC, remodel, ADU | Pine Grove · Amador County | — | — |
| Whatford Construction INC | Frank Edward Whatford | — | (209) 258 8800 | GC, remodel, ADU | Kirkwood · Amador County | — | — |
| William A Bunfill | William A Bunfill | — | (209) 295 3501 | Windows, patio, painters | Pioneer · Amador County | — | — |
| William A Lyons | William A Lyons | — | (209) 304 1129 | GC, remodel, ADU | Ione · Amador County | — | — |
| Williams Excavating And Trucking | Williams Excavating And Trucking | — | (209) 256 3585 | Other | Jackson · Amador County | — | — |
| Wolin Excavation INC | William Alexander Wolin | — | (209) 217 6675 | Other | Plymouth · Amador County | — | — |
| Wood Wizard INC | John Michael| Lesage John Le Sage | info@woodwizard.com | (209) 304 2301 | Other | Sutter Creek · Amador County | — | — |
| Woodworx | Philip Patrick Longacre | — | (209) 768 3741 | GC, remodel, ADU | Pine Grove · Amador County | — | — |
| Zeilers Custom Painting | Zeilers Custom Painting | — | (916) 601 9687 | Windows, patio, painters | Amador City · Amador County | — | — |