| Jensen Electric INC | Ryan Lee Jensen | — | (951) 294 2112 | Electricians | Auburn · Placer County | — | — |
| Jensen Landscaping | Nicholas Mark Jensen | — | (916) 770 7230 | Windows, patio, painters | Lincoln · Placer County | — | — |
| Jeremey Navo Septic | Jeremey Navo Septic | — | (530) 356 7374 | Other | Auburn · Placer County | — | — |
| Jeremiah Moore Construction | Jeremiah David Moore | — | (916) 406 4395 | GC, remodel, ADU | Lincoln · Placer County | — | — |
| Jeremy C Boal | Jeremy C Boal | — | (916) 318 1681 | GC, remodel, ADU | Colfax · Placer County | — | — |
| Jeremy Jordan Construction | Jeremy James Jordan | — | (916) 918 9322 | GC, remodel, ADU | Newcastle · Placer County | — | — |
| Jeremy Machado Electrical Signs | Jeremy Brian Machado | — | (916) 295 4028 | Other | Loomis · Placer County | — | — |
| Jerome F Schmit INC DBA J S Construction | Jerome Francis Schmit | — | (916) 204 1706 | GC, remodel, ADU | Loomis · Placer County | — | — |
| Jerry Alan Peterson DBA Transamerican Homes | Transamerican Homes | — | (916) 782 9111 | GC, remodel, ADU | Roseville · Placer County | — | — |
| Jerry Allen Lund | Jerry Allen Lund | — | (916) 344 5800 | Other | Rocklin · Placer County | — | — |
| Jerry Danielson Const | Jerry Danielson Const | — | (916) 801 9041 | GC, remodel, ADU | Lincoln · Placer County | — | — |
| Jerry Fillmer Paving & Seal Coating | Gerald Eugene Fillmer | — | (530) 823 6348 | Other | Auburn · Placer County | — | — |
| Jerry Johnson Construction INC DBA California Trademark Pools | Ryan J Johnson | — | (916) 479 3091 | GC, remodel, ADU | Lincoln · Placer County | — | — |
| Jerry Lee | Jerry Lee | — | (916) 532 8545 | Other | Roseville · Placer County | — | — |
| Jerry V Olson Residential Window Repairs | Jerry Vance Olson | — | (916) 723 1600 | Windows, patio, painters | Loomis · Placer County | — | — |
| Jesse's Painting INC | Jesse Lee Rodriguez | — | (916) 842 1154 | Windows, patio, painters | Roseville · Placer County | — | — |
| Jewell Baths | Joseph Anthony Jewell | — | (916) 633 8068 | GC, remodel, ADU | Penryn · Placer County | — | — |
| Jfc Network & Cabling Solutions INC | Trishia Estelle Correa-Leekley | — | (916) 755 4215 | Other | Roseville · Placer County | — | — |
| Jg Landscape Management INC | Gonzalez Hirvin | — | (916) 409 5464 | GC, remodel, ADU | Lincoln · Placer County | — | — |
| Jgs Concrete | Jgs Concrete | — | (916) 969 0873 | Other | Auburn · Placer County | — | — |
| Jh Construction Custom Builders LLC | James Lee Horn | — | (714) 504 8641 | GC, remodel, ADU | Rocklin · Placer County | — | — |
| Jiles Enterprises | William Robert Jiles | — | (916) 553 2455 | Other | Penryn · Placer County | — | — |
| Jim Chandler Pools INC | James Salvadore Jr Chandler | jim@jimchandlerpools.com | (916) 624 5296 | Pool | Penryn · Placer County | — | — |
| Jim Cheng Construction Services | James Tah Cheng | — | (916) 832 3100 | GC, remodel, ADU | Loomis · Placer County | — | — |
| Jim Kenney Construction | James William Kenney | — | (530) 277 5268 | GC, remodel, ADU | Tahoe City · Placer County | — | — |
| Jim Morrison Construction INC | James White Morrison | info@jimmorrisonconstruction.com | (530) 587 3055 | GC, remodel, ADU | Tahoe City · Placer County | — | — |
| Jim O'brien Painting Co | James Vernon O'brien | — | (530) 308 3654 | Windows, patio, painters | Auburn · Placer County | — | — |
| Jim Patton Plumbing | Jim Patton Plumbing | — | (916) 257 3385 | Other | Granite Bay · Placer County | — | — |
| Jimbo's | James Phillip Nicholls | — | (530) 363 0108 | GC, remodel, ADU | Tahoe City · Placer County | — | — |
| Jj Heating & Air | Jj Heating & Air | — | (530) 318 8646 | HVAC | Tahoma · Placer County | — | — |
| Jjlb Plumbing INC | Jacob Nathan Burns | — | (916) 501 6039 | Other | Roseville · Placer County | — | — |
| Jks Tile INC | Jerome Kenneth Streit | — | (916) 410 5808 | Other | Granite Bay · Placer County | — | — |
| Jl Custom Finishes LLC | Kristin Amber Steinbach | — | (916) 740 8040 | Windows, patio, painters | Rocklin · Placer County | — | — |
| Jlc Concrete | Michael James Webb | — | (916) 253 9018 | Other | Lincoln · Placer County | — | — |
| Jlcw Construction LLC DBA Jlcw Electric | Brent Edward Marrell | — | (916) 886 9630 | Electricians | Lincoln · Placer County | — | — |
| Jlm Construction | James Leonard Mc Adams | jmansfield@jlmconstruction.com | (916) 747 4608 | GC, remodel, ADU | Loomis · Placer County | — | — |
| Jm Concrete Pumping Service | Jeffrey Ashton Murphy | — | (530) 525 4337 | Other | Homewood · Placer County | — | — |
| Jm Fencing | Jm Fencing | — | (916) 307 8430 | Other | Lincoln · Placer County | — | — |
| Jm Landscaping | Jm Landscaping | — | (530) 305 0151 | Windows, patio, painters | Auburn · Placer County | — | — |
| Jm1 Construction | Jeffrey Alan Frago | — | (916) 577 3529 | GC, remodel, ADU | Rocklin · Placer County | — | — |