| J C G General Construction | John Charles Gajewski | — | (310) 499 6832 | GC, remodel, ADU | California City · Kern County | — | — |
| J D Construction | John Thomas Perry | — | (661) 390 0049 | Electricians | Tehachapi · Kern County | — | — |
| J D Jones Plumbing | J D Jones Plumbing | — | (661) 245 1733 | Other | Frazier Park · Kern County | — | — |
| J Dugan Companies | J Dugan Companies | — | (661) 213 7079 | GC, remodel, ADU | Bakersfield · Kern County | — | — |
| J E S Electrical | David Jacques Hughes | — | (661) 978 5176 | Electricians | Bakersfield · Kern County | — | — |
| J Flores Tree Service INC | Luz Marina Escot Flores | — | (661) 201 1505 | Tree | Bakersfield · Kern County | — | — |
| J G Construction & Custom Homes INC | Jeremy Matthew Gustafson | — | (661) 578 0098 | GC, remodel, ADU | Bakersfield · Kern County | — | — |
| J G Roofing & Loading INC | Juan Gonzalez | — | (661) 703 8743 | Other roofers | Bakersfield · Kern County | — | — |
| J Gill Construction | Jai Singh Gill | — | (661) 319 1747 | GC, remodel, ADU | Bakersfield · Kern County | — | — |
| J J Concrete & Landscaping | J J Concrete & Landscaping | — | (661) 932 7767 | Windows, patio, painters | Bakersfield · Kern County | — | — |
| J L Carpentry | J L Carpentry | — | (661) 345 3643 | Other | Tehachapi · Kern County | — | — |
| J L Custom Concrete | J L Custom Concrete | — | (661) 203 9318 | Other | Bakersfield · Kern County | — | — |
| J L Plank Incorporated DBA Cen-cal Construction | Jason Lee Plank | — | (661) 399 3759 | Other | Bakersfield · Kern County | — | — |
| J M & Sons Pool & Spa Repair | Cesar Gustavo Martinez | — | (661) 364 8093 | Pool | Bakersfield · Kern County | — | — |
| J M And Sons Custom Finish Work | Joseph William Clau Moore | — | (661) 619 2833 | GC, remodel, ADU | Bakersfield · Kern County | — | — |
| J M E Construction | Jimmy Eugene Ramon | — | (760) 384 8945 | GC, remodel, ADU | Ridgecrest · Kern County | — | — |
| J M Earthwork | J M Earthwork | — | (661) 363 3900 | Other | Bakersfield · Kern County | — | — |
| J Morales Construction & Finish | Jesus Rodrigo Morales Alcantar | — | (661) 820 5390 | GC, remodel, ADU | Bakersfield · Kern County | — | — |
| J N S Ironworks | Alfred Sarkissian | — | (818) 434 8294 | Other | Lebec · Kern County | — | — |
| J Noble Binns Plumbing Company INC | Donald Jay Schimnowski | — | (661) 615 6101 | HVAC | Bakersfield · Kern County | — | — |
| J O S Overhead Doors | J O S Overhead Doors | — | (661) 549 0034 | Other | Bakersfield · Kern County | — | — |
| J Ortiz Pool Service | Juan Jose Ortiz | — | (661) 972 2579 | Pool | Tehachapi · Kern County | — | — |
| J P Pools Excavation INC | Isis Astrid Pinera De Perez | — | (661) 427 1414 | Pool | Bakersfield · Kern County | — | — |
| J R C Pro Painting | J R C Pro Painting | — | (661) 742 7147 | Windows, patio, painters | Bakersfield · Kern County | — | — |
| J R Unlimited Construction | Jorge Alberto Jacq Rodriguez | — | (661) 520 6722 | GC, remodel, ADU | Tehachapi · Kern County | — | — |
| J T J Construction INC | James Melvin Ward | — | (661) 978 2624 | GC, remodel, ADU | Bakersfield · Kern County | — | — |
| J T S Modular INC | Lee Gregg Hawkins | — | (661) 835 4270 | GC, remodel, ADU | Bakersfield · Kern County | — | — |
| J Torres Co INC | Joe Jr Torres | — | (661) 832 2635 | Other | Bakersfield · Kern County | — | — |
| J V Finish Carpentry | J V Finish Carpentry | — | (805) 245 7216 | Windows, patio, painters | Bakersfield · Kern County | — | — |
| J V Scaffolding Services | Marco Antonio Sr Velazquez | agustinamingote@gmail.com | (661) 493 5318 | Other | Bakersfield · Kern County | — | — |
| J W Griffin Construction | Jason Wayne Griffin | — | (760) 608 2039 | GC, remodel, ADU | Ridgecrest · Kern County | — | — |
| J&m Tile Pro INC | Joac Iran Salmeron Portillo | — | (818) 738 6814 | Other | Bakersfield · Kern County | — | — |
| J's Custom Flooring | J's Custom Flooring | — | (818) 923 7781 | Other | Bakersfield · Kern County | — | — |
| J's Plumbing LLC | Jose Junior Zamora | — | (661) 472 4030 | Other | Bakersfield · Kern County | — | — |
| Jab Communications INC | Timothy Shawn Hubbell | — | (661) 496 5951 | Electricians | Bakersfield · Kern County | — | — |
| Jack Price Construction | John Henry Price | — | (760) 379 7011 | Other | Caliente · Kern County | — | — |
| Jack Winter | Jack Winter | — | (661) 327 8005 | HVAC | Bakersfield · Kern County | — | — |
| Jaco Oil Company | Christopher Lee David | — | (661) 393 7000 | Other | Bakersfield · Kern County | — | — |
| Jaguar Wrought Iron | Hubble Joshua | — | (661) 323 5015 | Other | Bakersfield · Kern County | — | — |
| Jai Drywall Co | Gonzalez Javier | — | (661) 213 7195 | Other | Bakersfield · Kern County | — | — |