| Advanced Electric & Sound | Nathan Kyle Jones | — | (530) 891 7597 | Electricians | Chico · Butte County | — | — |
| Advanced Water Pump Services | Jesse Lawrence Cunningham-lyon | advancedwaterpumpservices@gmail.com | (530) 575 1048 | Other | Chico · Butte County | — | — |
| Advanced Window Tinting | Advanced Window Tinting | — | (530) 343 4500 | Other | Chico · Butte County | — | — |
| Aerial Construction And Equipment | Travis Roy Adams | — | (530) 200 5886 | Other | Chico · Butte County | — | — |
| Affordable Drywall | Affordable Drywall | interested@domainmarket.com | (530) 624 6448 | Other | Chico · Butte County | — | — |
| Affordable Home & Rental Repair | Affordable Home & Rental Repair | — | (530) 518 3561 | GC, remodel, ADU | Chico · Butte County | — | — |
| Affordable J C Roofing | Julio Cesar Castillo Cuadros | — | (530) 680 9471 | Other roofers | Chico · Butte County | — | — |
| Affordable Lath & Plaster | Billy Jack Jepperson | — | (530) 712 7422 | Other | Oroville · Butte County | — | — |
| Affordable Plumbing | Affordable Plumbing | — | (530) 899 1158 | Other | Chico · Butte County | — | — |
| Affordable Wood Pellet Gas Appliance Replacement | Thomas Arden Bassett | — | (530) 846 1985 | Other | Biggs · Butte County | — | — |
| Agri Electric | Jessica Rose Thorpe | office@agrielectric.com | (530) 342 4203 | Electricians | Chico · Butte County | — | — |
| Ahlgren Contracting | Jon Forrest Ahlgren | — | (530) 518 7288 | GC, remodel, ADU | Paradise · Butte County | — | — |
| Aic Electric | Adam Robert Ake | — | (530) 891 9424 | Electricians | Chico · Butte County | — | — |
| Aim Excavation INC | Aidan Isaac Mc Cracken | — | (408) 621 4976 | Other | Oroville · Butte County | — | — |
| Air - Art Heating And Air Conditioning | Charles Augusta Jr Pugh | — | (530) 895 1420 | HVAC | Chico · Butte County | — | — |
| Airehart Construction INC | Brian Matthew Airehart | — | (530) 624 6121 | GC, remodel, ADU | Chico · Butte County | — | — |
| Aj Pools | Albert Joseph Ii Jacoboni | — | (530) 514 7665 | Pool | Chico · Butte County | — | — |
| Akers Advanced Painting | Akers Advanced Painting | — | (530) 228 9153 | Windows, patio, painters | Chico · Butte County | — | — |
| Aladdin Roofing | Michael James Ledesma | — | (530) 533 2934 | Other roofers | Oroville · Butte County | — | — |
| Albert Flooring | Albert Flooring | — | (626) 616 4750 | Other | Chico · Butte County | — | — |
| Aldric Roofing | Richard Aldric Seaton | — | (530) 764 0523 | Other roofers | Magalia · Butte County | — | — |
| Alex Custom Painting | Alex Custom Painting | — | (530) 282 7718 | Windows, patio, painters | Gridley · Butte County | — | — |
| Alisa Mcinnis | Alisa Mcinnis | — | (530) 828 9113 | GC, remodel, ADU | Oroville · Butte County | — | — |
| All About Locks And Safes | Michael Davis Meyer | — | (530) 514 0252 | Other | Chico · Butte County | — | — |
| All American Welding | All American Welding | — | (530) 403 9271 | Other | Oroville · Butte County | — | — |
| All Around Heating Air And Construction | Juan Antonio Farias | — | (530) 521 4433 | HVAC | Chico · Butte County | — | — |
| All Covered Roofing | Julio Sesar Garcia-Perez | — | (530) 342 2483 | Other roofers | Chico · Butte County | — | — |
| All Season Heating & Air Conditioning | Rolland Henry Summers | — | (530) 899 7107 | HVAC | Chico · Butte County | — | — |
| All Seasons Electric | Kyle Christopher Knobbe | — | (530) 828 1919 | Electricians | Chico · Butte County | — | — |
| All Seasons Heating & Air Conditioning | Rolland Henry Summers | — | (530) 899 7107 | HVAC | Chico · Butte County | — | — |
| All Seasons Painting | All Seasons Painting | interested@domainmarket.com | (530) 342 8851 | Windows, patio, painters | Chico · Butte County | — | — |
| All Star Tile | All Star Tile | — | (530) 990 9631 | Other | Oroville · Butte County | — | — |
| All Things Trees | Amanda Lynn Clark | — | (530) 872 7272 | Tree | Paradise · Butte County | — | — |
| Allegiant Roofing | Cody Michael Pitts | alex@allegiantroofing.com | (530) 720 8998 | Other roofers | Chico · Butte County | — | — |
| Allen Electrical Contracting | Joshua James Allen | — | (530) 321 7375 | Electricians | Chico · Butte County | — | — |
| Allen's Allweather Roofing INC | Scott Eric Allen | — | (916) 398 8062 | Other roofers | Oroville · Butte County | — | — |
| Alliance Construction And Restoration | Robert Charles Lanser | info@allianceconstructionandrestoration.com | (530) 966 6892 | GC, remodel, ADU | Magalia · Butte County | — | — |
| Alliance Environmental Services INC | William Edward Irwin | — | (530) 345 8562 | Other | Chico · Butte County | — | — |
| Allison's Pool Service | Robert Charles Allison | — | (530) 342 4211 | Pool | Forest Ranch · Butte County | — | — |
| Allstar Building Services | Joshua Ward Bailey | — | (530) 514 2878 | GC, remodel, ADU | Durham · Butte County | — | — |