| J P Construction | Jeffrey Warren Pohl | — | (916) 607 4910 | GC, remodel, ADU | Woodland · Yolo County | — | — |
| J P Petroleum Service | John Paul Puumala | — | (916) 372 5693 | Electricians | W Sacramento · Yolo County | — | — |
| J P R Concrete | J P R Concrete | — | (530) 554 6808 | Other | Woodland · Yolo County | — | — |
| J R Concrete | Miguel Jr Moreno | — | (916) 371 9080 | GC, remodel, ADU | West Sacramento · Yolo County | — | — |
| J R Construction | John Matthew Ramirez | — | (530) 624 2389 | GC, remodel, ADU | Woodland · Yolo County | — | — |
| J R L Construction & Remodel | Marcelino Jr Lepe Lozano | — | (530) 681 5325 | GC, remodel, ADU | Woodland · Yolo County | — | — |
| J Remodeling | Arturo Jr Jimenez | perezremodelingjaguares@gmail.com | (916) 585 2418 | GC, remodel, ADU | West Sacramento · Yolo County | — | — |
| J Roy Construction | Jeffrey Porter Roy | — | (530) 400 0749 | GC, remodel, ADU | Davis · Yolo County | — | — |
| J S D Electric | Jorge Arteaga Arias | — | (530) 867 0840 | Electricians | Woodland · Yolo County | — | — |
| J V J Construction | Jorge Villegas Jaime | — | (530) 204 0398 | GC, remodel, ADU | Woodland · Yolo County | — | — |
| J X C Electric | Jaime Xavier Chavez | — | (916) 873 3818 | Electricians | Woodland · Yolo County | — | — |
| Ja Electric | Arias Jaime | — | (530) 848 0569 | Electricians | Woodland · Yolo County | — | — |
| Jack Ryan Construction | Edwin Jack Ryan | — | (530) 219 4876 | GC, remodel, ADU | Woodland · Yolo County | — | — |
| Jackson Building Company | Brent Wade Jackson | — | (530) 301 7355 | GC, remodel, ADU | Esparto · Yolo County | — | — |
| Jamco Construction Services | James Andrew Hovagimian | — | (530) 759 8909 | GC, remodel, ADU | Davis · Yolo County | — | — |
| James Dantzler Painting | James Dantzler Painting | — | (530) 219 6018 | Windows, patio, painters | Winters · Yolo County | — | — |
| James Kelsey Maus Construction | James Kelsey Maus | — | (530) 681 2716 | GC, remodel, ADU | Woodland · Yolo County | — | — |
| James M Berg | James M Berg | — | (530) 796 2141 | Other | Guinda · Yolo County | — | — |
| James Robert Dale | James Robert Dale | — | (916) 826 6914 | GC, remodel, ADU | Woodland · Yolo County | — | — |
| James W Cameron Construction INC | James William Cameron | — | (916) 375 1771 | GC, remodel, ADU | West Sacramento · Yolo County | — | — |
| Jason L Chastain Performance | Jason L Chastain Performance | — | (916) 416 5417 | GC, remodel, ADU | West Sacramento · Yolo County | — | — |
| Jb's High Voltage INC | James David Bryan | estimates@jbshighvoltage.com | (530) 813 0279 | Electricians | Woodland · Yolo County | — | — |
| Jcp And Sons | Joshua John Colter | — | (707) 365 9432 | Windows, patio, painters | Winters · Yolo County | — | — |
| Jcv Construction Co | Arenas Julio Lozano | — | (530) 402 5357 | GC, remodel, ADU | Woodland · Yolo County | — | — |
| Jecole Enterprises INC | Donald Philip Jordan | — | (530) 795 3250 | GC, remodel, ADU | Winters · Yolo County | — | — |
| Jeff Bender | Jeff Bender | info@jeffbender.com | (317) 397 2765 | Electricians | Woodland · Yolo County | — | — |
| Jeff Bills Construction | Jeffrey Leslie Bills | — | (530) 867 2521 | GC, remodel, ADU | Woodland · Yolo County | — | — |
| Jeff Turman Construction | Jeffery Alan Turman | — | (530) 867 6045 | GC, remodel, ADU | Woodland · Yolo County | — | — |
| Jeffrey Dean Goeman | Jeffrey Dean Goeman | — | (916) 995 6159 | GC, remodel, ADU | Esparto · Yolo County | — | — |
| Jeffrey Luna | Jeffrey Luna | — | (916) 934 6306 | HVAC | West Sacramento · Yolo County | — | — |
| Jennifer Wait Landscaping | Jennifer Wait Landscaping | — | (916) 813 8201 | Windows, patio, painters | Woodland · Yolo County | — | — |
| Jerry Buenvenida | Jerry Buenvenida | — | (707) 564 0739 | Other | Esparto · Yolo County | — | — |
| Jess Knolle Electric | Jess Wayne Knolle | — | (530) 601 7901 | Electricians | Guinda · Yolo County | — | — |
| Jf Construction LLC | Juan Izael Fuentes | — | (530) 848 0285 | GC, remodel, ADU | Woodland · Yolo County | — | — |
| Jg Construction Company | Jose Milan Gutierrez | — | (530) 908 6149 | GC, remodel, ADU | Knights Landing · Yolo County | — | — |
| Jg Construction Masonry Division | Juan Enrique Godinez Alvarez | — | (530) 360 4334 | Other | Dunnigan · Yolo County | — | — |
| Jg Plastering Division | Juan Enrique Godinez Alvarez | — | (530) 360 4334 | Other | Dunnigan · Yolo County | — | — |
| Jim King | Jim King | — | (916) 524 3877 | GC, remodel, ADU | Woodland · Yolo County | — | — |
| Jim Turold Construction | James Alan Turold | — | (530) 902 3273 | GC, remodel, ADU | Davis · Yolo County | — | — |
| Jlc General Construction INC | Campos Jose Leon | — | (530) 908 1064 | GC, remodel, ADU | Woodland · Yolo County | — | — |