| A G I Plumbing Solutions INC | Anthony Ottis Don Jr Graham | — | (661) 858 7766 | Other | Bakersfield · Kern County | — | — |
| A G M General Builders INC | Gomez Mendoza Armando | — | (661) 301 4645 | GC, remodel, ADU | Bakersfield · Kern County | — | — |
| A G Nichols & Associates | Alexis Grant Iii Nichols | — | (661) 331 1229 | GC, remodel, ADU | Tehachapi · Kern County | — | — |
| A General Engineering Company | Tom Franklin Lara | — | (760) 677 5078 | Other | Ridgecrest · Kern County | — | — |
| A J's Mobile Home Service | Alex John Slivkoff | — | (661) 204 6681 | Other | Bakersfield · Kern County | — | — |
| A M R Construction | Daniel Edward Ripoli | info@amrconstruction.com | (661) 750 1300 | GC, remodel, ADU | Tehachapi · Kern County | — | — |
| A P M Installations | A P M Installations | — | (661) 754 2771 | Other | Rosamond · Kern County | — | — |
| A P T General Engineering INC | Russell George Elrod | — | (661) 323 0343 | Other | Bakersfield · Kern County | — | — |
| A Plus Concrete | A Plus Concrete | interested@domainmarket.com | (661) 808 8237 | Other | Bakersfield · Kern County | — | — |
| A R Steel INC | Adrian Fred Rodriguez | — | (661) 545 9122 | Other | Delano · Kern County | — | — |
| A S B Electric | Arturo Hernandez Sierra | — | (661) 932 2546 | Electricians | Bakersfield · Kern County | — | — |
| A S I INC | Tracy Marie Nail | — | (661) 327 2900 | Other | Bakersfield · Kern County | — | — |
| A T C Construction | Victor John Valdez | — | (661) 319 9316 | GC, remodel, ADU | Bakersfield · Kern County | — | — |
| A T Welding Fabrication | A T Welding Fabrication | — | (661) 748 9989 | Other | Shafter · Kern County | — | — |
| A To Z Electric And Communications | Aubrey Allen Hutchins | — | (661) 557 5089 | Electricians | Bakersfield · Kern County | — | — |
| A V C Construction INC | Eva Maria Vargas | — | (661) 203 3827 | Other | Bakersfield · Kern County | — | — |
| A V Heritage Builders INC | Susan Kay Bell | johnbell@avhbinc.com | (661) 256 1700 | GC, remodel, ADU | Rosamond · Kern County | — | — |
| A W A Painting INC | Younis Azzam Abdaljawwad | — | (661) 912 1744 | Windows, patio, painters | Bakersfield · Kern County | — | — |
| A W Roofing | Steven Daniel Webb | — | (661) 809 0665 | Other roofers | Bakersfield · Kern County | — | — |
| A&s Low Voltage Security Services | Anthony Salgado Jr Urias | — | (661) 437 0807 | Alarm and generators | Bakersfield · Kern County | — | — |
| A+ Home Services | Jon Mark Almgren | — | (925) 785 7652 | GC, remodel, ADU | Bakersfield · Kern County | — | — |
| A-1 Anytime Construction | Andrew Douglas Whitehead | — | (661) 376 5737 | GC, remodel, ADU | Bakersfield · Kern County | — | — |
| A-1 Plumbing Service | Richard Anthony Romo | — | (661) 376 3327 | GC, remodel, ADU | Bakersfield · Kern County | — | — |
| A-c Electric Company | Kenneth Michael Byrum | — | (661) 410 0000 | Electricians | Bakersfield · Kern County | — | — |
| A-n Roofing INC | Armando Tito Calvillo Martinez | — | (661) 699 4437 | Other roofers | Bakersfield · Kern County | — | — |
| A3 Plumbing INC | Homero Sanchez Munoz | — | (661) 215 6521 | Other | Bakersfield · Kern County | — | — |
| Aa Custom Garden Works LLC | Jose Alfredo Bravo | — | (661) 379 9664 | Windows, patio, painters | Bakersfield · Kern County | — | — |
| Aaa Planners & Builders INC | Andres Jr Arias | — | (661) 201 6776 | GC, remodel, ADU | Delano · Kern County | — | — |
| Aaa Traffic Control | Aaa Traffic Control | — | (562) 225 2067 | Other | Bakersfield · Kern County | — | — |
| Aaron Koop DBA Complete Fueling Solutions | Complete Fueling Solutions | — | (661) 706 8688 | Other | Bakersfield · Kern County | — | — |
| Aaron Metzner | Aaron Metzner | — | (661) 201 1787 | Other | Bakersfield · Kern County | — | — |
| Aaron's Mechanical LLC | Aaron Michael Barriga | — | (661) 379 9098 | HVAC | Bakersfield · Kern County | — | — |
| Ab Construction | Bautista Bautista Alberto | — | (805) 406 2609 | GC, remodel, ADU | Taft · Kern County | — | — |
| Ab Roofing LLC | Pascacio Abdias Perez | — | (760) 784 0603 | Other roofers | Inyokern · Kern County | — | — |
| Ab Tree Doctor | Ab Tree Doctor | — | (661) 390 0199 | Windows, patio, painters | Bakersfield · Kern County | — | — |
| Abacus Imt INC | Angulo Robert | — | (661) 588 4216 | Other | Bakersfield · Kern County | — | — |
| Abateco | Joseph Daniel Blanton | — | (661) 391 9800 | GC, remodel, ADU | Bakersfield · Kern County | — | — |
| Abc Americas Builder Co | Jose Henry Jimenez | — | (818) 301 4470 | GC, remodel, ADU | Bakersfield · Kern County | — | — |
| Abel Systems | Abel Systems | info@abel-systems.ch | (661) 702 1722 | Other | Keene · Kern County | — | — |
| Able Painting | Able Painting | — | (661) 496 9189 | Windows, patio, painters | Bakersfield · Kern County | — | — |