| Juarez Construction Co | Frank Coronado Juarez | — | (661) 201 1425 | GC, remodel, ADU | Bakersfield · Kern County | — | — |
| Judy Ann Marie Hart | Judy Ann Marie Hart | — | (661) 203 6740 | Windows, patio, painters | Bakersfield · Kern County | — | — |
| Julio E Gomez DBA Build-on Construction Co | Julio Enrique Gomez | — | (818) 344 0403 | Electricians | Pine Mountain Club · Kern County | — | — |
| Julio Jeronimo DBA Kitchens N More | Kitchens N More | — | (818) 437 8108 | GC, remodel, ADU | California City · Kern County | — | — |
| Junior Custom Construction | Octaviano Martinez Valle | — | (661) 213 5481 | GC, remodel, ADU | Shafter · Kern County | — | — |
| Just Johnson's INC DBA M Fischer Construction | Ryan Jarvis Johnson | — | (916) 600 4224 | GC, remodel, ADU | Bakersfield · Kern County | — | — |
| Justin Halbrook Construction | Justin Curtis Halbrook | — | (661) 342 9109 | GC, remodel, ADU | Bakersfield · Kern County | — | — |
| Justin Homes Co INC | Justin Lee Schweitzer | hello@justin-homes.com | (661) 303 2111 | GC, remodel, ADU | Bakersfield · Kern County | — | — |
| Justin Soto Masonry | Justin Soto Masonry | — | (661) 889 0410 | Other | Bakersfield · Kern County | — | — |
| Jvg Specialty Services | Jose Vicente Guerrero | — | (661) 753 0075 | Other | Bakersfield · Kern County | — | — |
| Jwd Construction INC | Jonathan William Dovichi | — | (661) 978 6465 | GC, remodel, ADU | Bakersfield · Kern County | — | — |
| Jy Tile Ceramic | Jy Tile Ceramic | — | (661) 204 3139 | Other | Bakersfield · Kern County | — | — |
| K & P Tile Construction Company | Jose Luis Reyes Gonzalez | — | (661) 432 9312 | Other | Bakersfield · Kern County | — | — |
| K And K Excavation & Grading | Kevin Richard Schooley | — | (661) 204 7876 | Other | Shafter · Kern County | — | — |
| K C Tile | K C Tile | — | (661) 427 6311 | Other | Bakersfield · Kern County | — | — |
| K Corp Enterprises INC | Kyle William Carter | — | (661) 864 1701 | GC, remodel, ADU | Bakersfield · Kern County | — | — |
| K F W Construction Co | Kirk Forrest Wagner | — | (661) 444 2911 | GC, remodel, ADU | Bakersfield · Kern County | — | — |
| K J Jackson Construction Co | Kirk James Jackson | — | (760) 382 2155 | GC, remodel, ADU | Ridgecrest · Kern County | — | — |
| K N Z Electrical INC | Aaryan Matthew Moore | — | (661) 379 2256 | Electricians | Bakersfield · Kern County | — | — |
| K-9 Custom Roofing INC | Garcia Jesus Vergara | — | (661) 770 9057 | Other roofers | Bakersfield · Kern County | — | — |
| K3 Plumbing Co | Jonathan Lopez | — | (661) 599 9751 | Other | Tehachapi · Kern County | — | — |
| Kaiser Comm Construction INC | Kevin Daniel Kaiser | info@kaisercommconstruction.com | (661) 245 3105 | Electricians | Frazier Park · Kern County | — | — |
| Kal J Vaughn | Kal J Vaughn | — | (661) 342 2838 | Other | Bakersfield · Kern County | — | — |
| Kal West Contractors INC | Mark Brian Underwood | — | (661) 910 3454 | GC, remodel, ADU | Bakersfield · Kern County | — | — |
| Kalscape | Francisco Efrain Gomez | — | (661) 873 5731 | Windows, patio, painters | Bakersfield · Kern County | — | — |
| Kapler Construction | Philip Gregory Kapler | — | (661) 549 5776 | GC, remodel, ADU | Bakersfield · Kern County | — | — |
| Kari Michele Mitchell | Kari Michele Mitchell | — | (661) 323 4529 | GC, remodel, ADU | Bakersfield · Kern County | — | — |
| Karl Johns Construction | Karl Allen Johns | — | (661) 203 2710 | Other | Bakersfield · Kern County | — | — |
| Katana General Contractor | Katana General Contractor | — | (818) 359 7416 | GC, remodel, ADU | Bakersfield · Kern County | — | — |
| Kc Electric INC | Jose Urbano Luna Valian | — | (661) 204 7742 | Electricians | Bakersfield · Kern County | — | — |
| Kc Martin Construction LLC | Kevin Charles Martin | — | (760) 677 6280 | GC, remodel, ADU | Ridgecrest · Kern County | — | — |
| Keefer's Painting | Keefer's Painting | — | (661) 203 8289 | Windows, patio, painters | Tehachapi · Kern County | — | — |
| Keeling Construction | Rex Louis Keeling | — | (760) 379 0966 | Electricians | Kernville · Kern County | — | — |
| Keil Electric | Keil Electric | — | (619) 815-4197 | Electricians | Santee · Kern County | — | — |
| Keith F Mioni Sr | Keith F Mioni Sr | — | (661) 979 1479 | Pool | Bakersfield · Kern County | — | — |
| Keith M Peters | Keith M Peters | — | (661) 871 5533 | Windows, patio, painters | Bakersfield · Kern County | — | — |
| Keith's Bathtub Repairs | Keith's Bathtub Repairs | — | (661) 822 0674 | Other | Bakersfield · Kern County | — | — |
| Keller Construction | James Edward Keller | resumes@kellerconstruction.com | (661) 619 1707 | GC, remodel, ADU | Tehachapi · Kern County | — | — |
| Kelly Bailey Construction INC | Kelly Marie Bailey | — | (661) 201 0238 | GC, remodel, ADU | Bakersfield · Kern County | — | — |
| Kelly Gonzales Concrete | Kelly Gonzales Concrete | — | (661) 301 6409 | Other | Lake Isabella · Kern County | — | — |