| A & W Air Conditioning & Heating | Alex Maynard Williams | — | (661) 304 1799 | HVAC | Bakersfield · Kern County | — | — |
| A 1 Air Conditioning & Heating | Marie Annette Memoli | — | (661) 822 1173 | HVAC | Tehachapi · Kern County | — | — |
| A C M Mechanical Contractors | Jose Jaime Jimenez | — | (661) 472 6583 | HVAC | Bakersfield · Kern County | — | — |
| Aaron's Mechanical LLC | Aaron Michael Barriga | — | (661) 379 9098 | HVAC | Bakersfield · Kern County | — | — |
| Acosta Air | Acosta Air | — | (661) 859 4798 | HVAC | Bakersfield · Kern County | — | — |
| Advanced Climate Control Heating & Air Conditioning | Mojarro Noe | — | (661) 699 8572 | HVAC | Bakersfield · Kern County | — | — |
| Advanced Heating And Air Conditioning | Advanced Heating And Air Conditioning | — | (661) 822 4872 | HVAC | Tehachapi · Kern County | — | — |
| Agape Air Heating And Air Conditioning INC | Jose Esequiel Recio | — | (661) 399 6600 | HVAC | Bakersfield · Kern County | — | — |
| Aic Heating And Air | Kenneth Dene Clifton | — | (661) 695 6911 | HVAC | Bakersfield · Kern County | — | — |
| Air Climate Control | Air Climate Control | — | (661) 316 5587 | HVAC | Bakersfield · Kern County | — | — |
| Air Climate Pros | Jose Esequiel Recio | — | (661) 302 3225 | HVAC | Bakersfield · Kern County | — | — |
| Air Era | Air Era | — | (661) 302 2186 | HVAC | Bakersfield · Kern County | — | — |
| Air Express Heating And Air INC | Miguel Angel Jr Perez | — | (661) 444 1886 | HVAC | Bakersfield · Kern County | — | — |
| Air Innovations | Air Innovations | — | (661) 319 1325 | HVAC | Bakersfield · Kern County | — | — |
| Air King Heating & Cooling INC | Luis Gilberto Reyes | — | (661) 725 6000 | HVAC | Delano · Kern County | — | — |
| Air Kool Service | Steven Oral Hargrove | — | (661) 201 1465 | HVAC | Bakersfield · Kern County | — | — |
| Air Mechanical Heating & Air Conditioning INC | Peter Donald Porcella | — | (661) 873 8500 | HVAC | Bakersfield · Kern County | — | — |
| Air Pro Heating & Cooling | Air Pro Heating & Cooling | — | (818) 272 0932 | HVAC | Bakersfield · Kern County | — | — |
| Air Pure Solutions | Air Pure Solutions | — | (805) 248 8127 | HVAC | Bakersfield · Kern County | — | — |
| Air Repair | Air Repair | — | (661) 746 0703 | HVAC | Shafter · Kern County | — | — |
| Airmax Heating And Air Conditioning | Airmax Heating And Air Conditioning | — | (661) 474 9110 | HVAC | Bakersfield · Kern County | — | — |
| Alcala Air Conditioning & Heating Co | Jose Luis Alcala | — | (661) 754 6624 | HVAC | Rosamond · Kern County | — | — |
| All Brand Air INC | Charles Dale Witcher | — | (661) 589 2051 | HVAC | Bakersfield · Kern County | — | — |
| All Climate Air INC | Jeffrey Austin Gaines | — | (661) 321 0620 | HVAC | Bakersfield · Kern County | — | — |
| All Seasons Air Solutions INC | Jesus David Macias Rivera | — | (661) 567 4996 | HVAC | Bakersfield · Kern County | — | — |
| Alliance Fabrication & HVAC INC | Paul Fernando Gil | — | (661) 432 8465 | HVAC | Bakersfield · Kern County | — | — |
| American Dream Services | Roger Dale Jr Allen | — | (661) 213 3999 | HVAC | Bakersfield · Kern County | — | — |
| Anaya Electric HVAC | Daniel Lorzo Anaya | — | (661) 340 8247 | HVAC | Edison · Kern County | — | — |
| Anderson Air | Anderson Air | — | (760) 608 2636 | HVAC | Ridgecrest · Kern County | — | — |
| Appliance Clinic Heating & Air Conditioning | Guadalupe Arista Almaraz | — | (661) 833 6157 | HVAC | Bakersfield · Kern County | — | — |
| Appliance Pros | Scott Rodrigo Owen | — | (661) 322 5866 | HVAC | Bakersfield · Kern County | — | — |
| Arctic Breeze HVAC | Arctic Breeze HVAC | — | (661) 546 0148 | HVAC | Bakersfield · Kern County | — | — |
| Arthur Allen Air INC | Robert Arthur Frost | — | (661) 665 9000 | HVAC | Bakersfield · Kern County | — | — |
| Arvin Aire | Arvin Aire | — | (661) 557-1905 | HVAC | Lamont · Kern County | — | — |
| Atlas HVAC Solutions | Atlas HVAC Solutions | — | (661) 376 0220 | HVAC | Arvin · Kern County | — | — |
| Atlas Plumbing | Atlas Plumbing | — | (661) 325 2123 | HVAC | Bakersfield · Kern County | — | — |
| Ayres Heating & Cooling | Ayres Heating & Cooling | — | (661) 497 9335 | HVAC | Bakersfield · Kern County | — | — |
| B & D Mechanical | B & D Mechanical | — | (661) 805 2017 | HVAC | Tehachapi · Kern County | — | — |
| Bakerfield Heating & Cooling | Bakerfield Heating & Cooling | — | (661) 699 0475 | HVAC | Bakersfield · Kern County | — | — |
| Balanced Air Mechanical | Jared Damian Alvarez | — | (661) 333 5806 | HVAC | Bakersfield · Kern County | — | — |