| Yo Builders Inc. | Yo Builders Inc. | yo.builders1@gmail.com | (323) 212-5515 | GC, remodel, ADU | Woodland Hills · Yolo County | — | — |
| Yolo Concrete | Yolo Concrete | — | (530) 204 3895 | Other | Woodland · Yolo County | — | — |
| Yolo County Arborist | Sean Michael Cookman | — | (530) 753 3123 | Other | Davis · Yolo County | — | — |
| Yolo County General Services | Yolo County General Services | — | (530) 666-8888 | GC, remodel, ADU | Woodland · Yolo County | — | — |
| Yolo Electric | Hernandez Pablo | — | (530) 979 1607 | Electricians | Woodland · Yolo County | — | — |
| Yolo Fire & Protection | Plumbing Nichols | — | (530) 681 6228 | Other | Woodland · Yolo County | — | — |
| Yolo Garage Door INC | Sanchez Fernando Duran | yologaragedoorcompany@yahoo.com | (530) 207 7241 | Other | Woodland · Yolo County | — | — |
| Yolo Landscape | Yolo Landscape | yololandscape2016@gmail.com | (530) 207 9961 | Windows, patio, painters | Woodland · Yolo County | — | — |
| Yolo Machinery Erectors INC | Christian Allen Niehues | — | (530) 661 1288 | Other | Woodland · Yolo County | — | — |
| Yolo Plumbing INC | Joseph John Weins | — | (530) 908 0990 | Other | Woodland · Yolo County | — | — |
| Yolo Plumbing INC - Water Heater Repair & Replacement | Yolo Plumbing INC - Water Heater Repair & Replacement | — | (530) 379-4294 | HVAC | Woodland · Yolo County | — | — |
| Yolo Property Management | Yolo Property Management | info@yolopropertymanagement.com | (530) 753-7730 | Property managers | Yolo · Yolo County | — | — |
| Yolo Pumping Service INC | Steve Todd Chriss | — | (530) 662 5534 | Other | Woodland · Yolo County | — | — |
| Yoloarts | Yoloarts | ya@yoloarts.org | (530) 309-6464 | Windows, patio, painters | Woodland · Yolo County | — | — |
| Yolostone Enterprises LLC DBA Yolostone Excavation | Austin Hansard Stone | — | (530) 551 2009 | Other | Winters · Yolo County | — | — |
| Yu Gao | Yu Gao | — | (650) 512 9999 | GC, remodel, ADU | Woodland · Yolo County | — | — |
| Yves Boisrame Construction | Yves Alein Boisrame | — | (916) 952 2557 | GC, remodel, ADU | Winters · Yolo County | — | — |
| Yvkcbo | Yaroslav Vasylyk | — | (916) 633 8411 | Other | West Sacramento · Yolo County | — | — |
| Zachary Taylor Mc Cord | Zachary Taylor Mc Cord | — | (530) 220 2566 | Windows, patio, painters | Woodland · Yolo County | — | — |
| Zack Fisher Painting | Zack Fisher Painting | — | (530) 867 4083 | Windows, patio, painters | Woodland · Yolo County | — | — |
| Zs Construction | Zachary Tyler Sanders | — | (530) 405 6985 | Other | Davis · Yolo County | — | — |