| William Ford Construction INC | William Harrison Iv Ford | — | (530) 362 0546 | GC, remodel, ADU | Nevada City · Nevada County | — | — |
| William James Keefe | William James Keefe | — | (530) 446 4743 | GC, remodel, ADU | Nevada City · Nevada County | — | — |
| William Robert Hess General Contractor | William Robert Hess General Contractor | — | (925) 788 8369 | GC, remodel, ADU | Nevada City · Nevada County | — | — |
| Williams Heating And Air INC | Kevin Robert Williams | — | (530) 913 8556 | HVAC | Nevada City · Nevada County | — | — |
| Winters Construction I P L INC | Kevin Frederick Winters | — | (530) 414 8345 | GC, remodel, ADU | Truckee · Nevada County | — | — |
| Witzig Construction | Daniel Roy Witzig | — | (530) 414 1731 | GC, remodel, ADU | Truckee · Nevada County | — | — |
| Wolflab INC | Eric William Bryant | — | (530) 301 5883 | Other | Truckee · Nevada County | — | — |
| Wolfstone Construction INC | Christopher Aaron Anderson | — | (530) 559 1997 | GC, remodel, ADU | Grass Valley · Nevada County | — | — |
| Woodgrain Woodworks | Alan Malcolm Dunn | help@smugmug.com | (530) 272 1401 | Other | Grass Valley · Nevada County | — | — |
| Woodskill & Company | David Michael Daunch | — | (530) 955 0291 | GC, remodel, ADU | Truckee · Nevada County | — | — |
| Woodworks Construction | Dana James Dykstra | — | (530) 277 9178 | GC, remodel, ADU | Grass Valley · Nevada County | — | — |
| Worrell Const | Worrell Const | — | (530) 412 3346 | GC, remodel, ADU | Truckee · Nevada County | — | — |
| Wpl Handyman Services | Kelly Glen Nevius | — | (954) 501 3238 | GC, remodel, ADU | Nevada City · Nevada County | — | — |
| Wright Construction | Michael James Wright | — | (530) 268 1288 | GC, remodel, ADU | Grass Valley · Nevada County | — | — |
| Wyman Construction | Larry Edward Wyman | — | (916) 599 6060 | GC, remodel, ADU | Grass Valley · Nevada County | — | — |
| Y Y Y General Contractor | Y Y Y General Contractor | — | (916) 208 9699 | GC, remodel, ADU | Nevada City · Nevada County | — | — |
| Yoho Interiors | Yoho Interiors | — | (510) 508 6733 | GC, remodel, ADU | Grass Valley · Nevada County | — | — |
| Youngs Carpet One | John Bennett Smith | — | (530) 273 5568 | Other | Grass Valley · Nevada County | — | — |
| Yuba Forest Restoration INC | Matthew Donald Merrill | yubaforestrestoration@gmail.com | (530) 205 3352 | Tree | Grass Valley · Nevada County | — | — |
| Yuba Lock & Safe | Robert Cecil Nichols | — | (530) 272 6600 | Other | Grass Valley · Nevada County | — | — |
| Yuba River Swimming Holes And Pools LLC | Jack Douglas Jr Boan | — | (530) 852 1888 | Pool | Grass Valley · Nevada County | — | — |
| Zak Quick Construction | Zachary Michael Quick | — | (530) 320 7595 | GC, remodel, ADU | Truckee · Nevada County | — | — |
| Zanat Construction | Ilic Zarko | zarko@zanatconstruction.com | (530) 615 1125 | GC, remodel, ADU | Truckee · Nevada County | — | — |
| Zarate Painting | Zarate Painting | — | (530) 386 7667 | Windows, patio, painters | Truckee · Nevada County | — | — |
| Zeddies Heating | Zeddies Heating | — | (775) 225 7828 | HVAC | Truckee · Nevada County | — | — |
| Zelhart Construction | Mark Carter Zelhart | — | (805) 680 3470 | GC, remodel, ADU | Grass Valley · Nevada County | — | — |
| Zieman Construction | Bradford Louis Zieman | — | (530) 265 3517 | GC, remodel, ADU | Nevada City · Nevada County | — | — |
| Zimmerman Construction | Robert Wallace Zimmerman | — | (530) 906 3992 | GC, remodel, ADU | Truckee · Nevada County | — | — |
| Zirbel | Dennis Eugene Zirbel | — | (530) 582 8979 | GC, remodel, ADU | Truckee · Nevada County | — | — |
| Zone 1 Landscaping | Zone 1 Landscaping | — | (530) 205 5109 | Windows, patio, painters | Truckee · Nevada County | — | — |