| Xotic Landscapes INC | Jose Guadalupe Silva Avalos | — | (916) 613 4919 | GC, remodel, ADU | Roseville · Placer County | — | — |
| Xpert Remodeling & Construction | Kuzmenko Andrey | — | (916) 956 5044 | GC, remodel, ADU | Auburn · Placer County | — | — |
| Xrq General Contractors | Stephen Louis Huntington | — | (916) 737 9837 | GC, remodel, ADU | Roseville · Placer County | — | — |
| Yardhouse Sheds | Timothy Allen Butler | — | (530) 268 8001 | GC, remodel, ADU | Auburn · Placer County | — | — |
| Yauheni Alizarovich | Yauheni Alizarovich | — | (347) 768 5759 | Windows, patio, painters | Roseville · Placer County | — | — |
| Yeager Tile & Stone INC | Jeffrey Daniel Watson | — | (916) 504 6343 | Other | Rocklin · Placer County | — | — |
| Yerman Electric | Anthony John Yerman | — | (916) 759 9257 | Electricians | Rocklin · Placer County | — | — |
| Yongxin Liu | Yongxin Liu | — | (626) 371 3884 | Electricians | Granite Bay · Placer County | — | — |
| York Excavating | York Excavating | — | (530) 305 4183 | Other | Auburn · Placer County | — | — |
| Young Builders INC | Todd Matthew Young | — | (707) 484 4192 | GC, remodel, ADU | Weimar · Placer County | — | — |
| Your Team Heating And Air | Gamaliel Jarquin Garcia | — | (916) 289 8888 | HVAC | Sheridan · Placer County | — | — |
| Yp Construction & Design INC DBA Yp Plumbing | Yuriy Vladimirovic Pivnyuk | — | (916) 709 4371 | Other | Roseville · Placer County | — | — |
| Z Tech Custom Painting | Z Tech Custom Painting | — | (916) 997 1466 | Windows, patio, painters | Roseville · Placer County | — | — |
| Zabel Construction | Robert Frederick Zabel | bob@zabelconstruction.com | (650) 465 7239 | GC, remodel, ADU | Roseville · Placer County | — | — |
| Zach Larsson Welding | Zach Larsson Welding | — | (916) 747 1190 | Other | Newcastle · Placer County | — | — |
| Zach's Air Conditioning & Heating | Zach's Air Conditioning & Heating | — | (530) 798 4201 | HVAC | Foresthill · Placer County | — | — |
| Zealous Electric INC | Timothy Kalinyuk | info@zealouselectric.com | (916) 899 9911 | Electricians | Roseville · Placer County | — | — |
| Zeebtec | Vincente Ignacio Porras | — | (916) 305 4880 | Other | Roseville · Placer County | — | — |
| Zentner Construction INC | Matthew Moses Zentner | — | (916) 869 1586 | GC, remodel, ADU | Granite Bay · Placer County | — | — |
| Zimmer Enterprises INC | Bryan Thomas Zimmer | — | (916) 580 7290 | Other | Rocklin · Placer County | — | — |
| Zinfandel Landscaping & Maintenance | Zinfandel Landscaping & Maintenance | — | (916) 918 3475 | Windows, patio, painters | Loomis · Placer County | — | — |
| Zion Endevours Home | Luis Alberto Vazquez Gil | — | (650) 350 0970 | GC, remodel, ADU | Loomis · Placer County | — | — |
| Zumalt Excavating | Zumalt Excavating | — | (530) 320 1465 | Other | Auburn · Placer County | — | — |
| Zuna Flooring INC | Slavko Zuna | — | (916) 616 3350 | Other | Rocklin · Placer County | — | — |
| Zuvanex Construction Inc. | Daniil Nikitin | — | (916) 284 6714 | GC, remodel, ADU | Auburn · Placer County | — | — |
| Zylac Corporation | Brent Gordon Boblitt | — | (530) 368 0856 | Electricians | Meadow Vista · Placer County | — | — |