| King Heating & Air Conditioning | King Heating & Air Conditioning | — | (661) 978 6900 | HVAC | Bakersfield · Kern County | — | — |
| King Lion Construction INC | Jason Francisco Sapien Rivera | jason@kinglionconstruction.net | (661) 454 6233 | GC, remodel, ADU | Delano · Kern County | — | — |
| Kingdom Concrete | Kingdom Concrete | — | (661) 205 6232 | Other | Bakersfield · Kern County | — | — |
| Kingdom Painting INC | Josue Elias Quezada Nuno | — | (661) 487 6684 | Windows, patio, painters | Bakersfield · Kern County | — | — |
| Kings Painting And Decorating | Kings Painting And Decorating | — | (661) 690 8035 | Windows, patio, painters | Tehachapi · Kern County | — | — |
| Kinkade General Construction | Donald Rea Kinkade | — | (661) 978 8800 | GC, remodel, ADU | Bakersfield · Kern County | — | — |
| Klassen And Smith Construction INC | James Allen Klassen | — | (661) 282 8048 | GC, remodel, ADU | Bakersfield · Kern County | — | — |
| Klassen Corporation | Mark Lawrence Delmarter | firstname@klassen.com | (661) 706 7445 | GC, remodel, ADU | Bakersfield · Kern County | — | — |
| Klassen Management INC | Christopher Andrew Klassen | — | (661) 619 1839 | GC, remodel, ADU | Bakersfield · Kern County | — | — |
| Knight Building Systems INC | John Walton Knight | sales@knightbuildingsystems.com | (661) 312 8177 | Electricians | Tehachapi · Kern County | — | — |
| Knight's Pumping & Portable Services INC | Maureen Jill Napier | — | (661) 397 4116 | Electricians | Bakersfield · Kern County | — | — |
| Kool Shades Custom Window Coverings | Kool Shades Custom Window Coverings | — | (661) 331 8221 | Other | Bakersfield · Kern County | — | — |
| Koool Shade Aluminum Products | Koool Shade Aluminum Products | — | (661) 324 5665 | GC, remodel, ADU | Bakersfield · Kern County | — | — |
| Kps Plumbing | Kps Plumbing | — | (661) 817 0637 | Other | Bakersfield · Kern County | — | — |
| Krcorp Resources INC | Larry Kent Rose | — | (661) 203 0995 | Other | Bakersfield · Kern County | — | — |
| Ks Custom Homes | Kyle Landon Sanders | — | (661) 213 9256 | GC, remodel, ADU | Bakersfield · Kern County | — | — |
| Ks Industrial Painting | Erik Robert Anfinson | — | (661) 617 1700 | Windows, patio, painters | Bakersfield · Kern County | — | — |
| Ks Industries LP | Kyle Stewart Small | info@ksindustries.com | (661) 617 1700 | Electricians | Bakersfield · Kern County | — | — |
| Ksb INC - Western Division | John Edward Compton | — | (804) 565 8361 | Other | Bakersfield · Kern County | — | — |
| Ksi Engineering INC | Glenda Sue Small | — | (661) 617 1700 | Other | Bakersfield · Kern County | — | — |
| Ksl Grading & Paving INC | Sergio Serrano | — | (714) 395 0636 | Other | Bakersfield · Kern County | — | — |
| Kurt Rizkovsky Construction | Kurt Anthony Rizkovsky | — | (661) 904 0602 | GC, remodel, ADU | Bakersfield · Kern County | — | — |
| Kustom Kutz Construction INC | Joseph Sr Olivarez | — | (661) 437 1130 | GC, remodel, ADU | Bakersfield · Kern County | — | — |
| Kv Woodworking | Kevin Michael Vosper | — | (520) 481 8493 | Other | Bakersfield · Kern County | — | — |
| Kyle Lawless Construction | Kyle Anthony Lawless | — | (661) 706 9388 | Other | Bakersfield · Kern County | — | — |
| Kyle Taylor Landscape And Irrigation | Kyle Taylor Landscape And Irrigation | — | (805) 210 6397 | Windows, patio, painters | Lebec · Kern County | — | — |
| L & D Plumbing | L & D Plumbing | — | (760) 371 3313 | Other | Ridgecrest · Kern County | — | — |
| L & S Painting | L & S Painting | — | (310) 916 7151 | Windows, patio, painters | Pine Mountain Club · Kern County | — | — |
| L D D Construction INC DBA Ironworks | Larry Dale Davis | — | (661) 589 9223 | GC, remodel, ADU | Bakersfield · Kern County | — | — |
| L Jones Incorporated | Logan Andrew Jones | — | (661) 852 1127 | GC, remodel, ADU | Bakersfield · Kern County | — | — |
| L M Construction | Lindolfo Martinez | — | (661) 747 6146 | GC, remodel, ADU | Mc Farland · Kern County | — | — |
| L Phil Klassen | L Phil Klassen | — | (661) 706 7445 | GC, remodel, ADU | Bakersfield · Kern County | — | — |
| L R Technologies | L R Technologies | — | (818) 281 3334 | Other | Bakersfield · Kern County | — | — |
| L S England Designs INC | Lance Lavern England | lsenglanddesigns@gmail.com | (661) 835 8000 | GC, remodel, ADU | Bakersfield · Kern County | — | — |
| L W Davidson | L W Davidson | — | (661) 330 3131 | GC, remodel, ADU | Bakersfield · Kern County | — | — |
| L&l Countertops Granite Countertops | Luis Eduardo Fuentes Cartagena | — | (442) 477 1292 | Other | Ridgecrest · Kern County | — | — |
| L&m Concrete | Patrick Allen Lentz | — | (661) 900 2673 | Other | Bakersfield · Kern County | — | — |
| La Verne & Son | La Verne & Son | — | (661) 587 6600 | HVAC | Bakersfield · Kern County | — | — |
| Lacmore Electric LLC | Luke Anthony Moreno | — | (661) 309 3922 | Electricians | Bakersfield · Kern County | — | — |
| Lalo's Plastering | Lalo's Plastering | — | (661) 204 0447 | Other | Bakersfield · Kern County | — | — |