| James W Hessling | James W Hessling | — | (408) 690 8985 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| Jamieson Const Co | William Dean Jamieson | — | (408) 483 5179 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| Jan C Holtfreter | Jan C Holtfreter | — | (510) 203 4623 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| Jandu General Engineering INC | Joga Singh | — | (510) 602 1518 | Other | Saratoga · Santa Clara County | — | — |
| Jansen Construction | Wilhelmus Jr Jansen | jansenhomes@gmail.com | (408) 332 0711 | GC, remodel, ADU | Sunnyvale · Santa Clara County | — | — |
| Janssen Builders | Janssen Builders | — | (408) 236 7385 | GC, remodel, ADU | Saratoga · Santa Clara County | — | — |
| Jar 8 Construction INC | Erik Rolando Prieto Hermida | — | (408) 393 6572 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| Jarka Enterprises INC | Kenneth Dean Dinsmore | — | (408) 325 5727 | Other | San Jose · Santa Clara County | — | — |
| Jarquin Tree Service LLC | Leon Jesus Jarquin | jesus@jarquintreeservice.com | (408) 606 1290 | Tree | San Jose · Santa Clara County | — | — |
| Jas Construction | Chia-Shun Wu | — | (408) 393 3578 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| Jason Leimbach Painting | Jason Leimbach Painting | — | (408) 903 0531 | Windows, patio, painters | Milpitas · Santa Clara County | — | — |
| Jason Luna Construction INC | Jason William Luna | — | (408) 509 3075 | GC, remodel, ADU | Gilroy · Santa Clara County | — | — |
| Jauregui Landscaping | Jauregui Landscaping | — | (408) 926 0928 | Windows, patio, painters | San Jose · Santa Clara County | — | — |
| Jav Voltage Electric | Javier Rocha Hernandez | — | (408) 314 8211 | Electricians | San Jose · Santa Clara County | — | — |
| Javelin Construction INC | Vincent Hung Leung | — | (408) 205 9439 | GC, remodel, ADU | Sunnyvale · Santa Clara County | — | — |
| Jay A Chesavage | Jay A Chesavage | — | (650) 619 5270 | GC, remodel, ADU | Palo Alto · Santa Clara County | — | — |
| Jay Aloha Construction | Lop Minh Le | — | (408) 480 5590 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| Jay Andre Construction INC | Jay Robert Andre | info@jayandreconstruction.com | (408) 377 7500 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| Jay Kats INC DBA Revolt Electric | Jay Martin Kats | — | (669) 500 6500 | Electricians | San Jose · Santa Clara County | — | — |
| Jay Sylvester Construction INC | Jay Edward Sylvester | — | (408) 307 2770 | GC, remodel, ADU | Santa Clara · Santa Clara County | — | — |
| Jay's Builders And Remodeling INC | Jesse Dwayne Haynie | — | (408) 707 6505 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| Jay's Sheet Metal | Jay's Sheet Metal | — | (408) 529 4711 | Other | Gilroy · Santa Clara County | — | — |
| Jaz Builders INC | Luis Alejandro Castaneda-Rios | info@jazbuilders.com | (408) 560 6988 | GC, remodel, ADU | Santa Clara · Santa Clara County | — | — |
| Jb Fence Company | Barrera Banderas Javier | matt@jbfence.com | (650) 600 1150 | Other | East Palo Alto · Santa Clara County | — | — |
| Jb Landscape | Jb Landscape | — | (714) 225 1570 | Windows, patio, painters | San Jose · Santa Clara County | — | — |
| Jb Landscaping INC | Jorge B Barriga | — | (650) 793 2617 | Windows, patio, painters | Sunnyvale · Santa Clara County | — | — |
| Jb Rain Gutter Installation | Jb Rain Gutter Installation | — | (408) 912 3761 | Other | Los Gatos · Santa Clara County | — | — |
| Jbbc Heating And Air Conditioning INC | Jonatan Bladimir Beltran Castro | — | (408) 679 6296 | HVAC | San Jose · Santa Clara County | — | — |
| Jbs Green Builders INC | Baldev Singh Jandu | jbsgreenbuilders@gmail.com | (408) 390 5577 | GC, remodel, ADU | Saratoga · Santa Clara County | — | — |
| Jby Air And Heating | Jby Air And Heating | — | (650) 387 4558 | HVAC | Mountain View · Santa Clara County | — | — |
| Jc Bay LLC | Tian Jiaxing | — | (408) 242 3878 | GC, remodel, ADU | Sunnyvale · Santa Clara County | — | — |
| Jc Building America INC | Ortiz Fabian Arellano | — | (888) 340 2265 | Electricians | San Jose · Santa Clara County | — | — |
| Jc Electric | Jaime Santiago Chavez | — | (408) 406 9974 | Electricians | San Jose · Santa Clara County | — | — |
| Jc Electric Co | Juan Carlos Mendoza | — | (650) 921 7738 | Electricians | East Palo Alto · Santa Clara County | — | — |
| Jc Heating And Cooling INC | Jose Ramon Carrasco | — | (408) 687 6043 | HVAC | San Jose · Santa Clara County | — | — |
| Jc Remodeling INC | Jorge Francisco Morfin Caratachea | — | (669) 279 9304 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| Jc Roofing Vip INC | Juan Carlos Rivera Zamora | services@jcroofingvip.com | (209) 382 4141 | Other roofers | Milpitas · Santa Clara County | — | — |
| Jc Tree Experts INC | Javier Jr Castaneda | jctree1990@yahoo.com | (408) 858 6123 | Tree | San Jose · Santa Clara County | — | — |
| Jc's Custom Cabinetry & Wood Working INC | Jose Mario Castaneda | — | (831) 566 4390 | Other | Gilroy · Santa Clara County | — | — |
| Jc's Tree Service INC | Jose Carlos Castaneda Rios | — | (408) 644 4522 | Other | San Jose · Santa Clara County | — | — |