| 1 N Done Roofing Services INC | Octavio Rosas Gonzalez | — | (530) 933 8272 | Other roofers | Marysville · Yuba County | — | — |
| 1776 Construction | Daniel Jacob Ferchaud | — | (530) 362 0944 | GC, remodel, ADU | Marysville · Yuba County | — | — |
| 3rd Gen Roofing INC | Ryan Harry Crouse | — | (530) 701 2457 | Other roofers | Marysville · Yuba County | — | — |
| 74 Construction | Carlos Manuel Azevedo | — | (916) 397 5594 | GC, remodel, ADU | Plumas Lake · Yuba County | — | — |
| 8A Plumbing & Leak Detection | Pedro Jr Ochoa | — | (510) 334 4360 | Other | Olivehurst · Yuba County | — | — |
| A & R Quality Roofing LLC | Cuellar Alejandro Flores | — | (916) 261 4343 | Other roofers | Oregon House · Yuba County | — | — |
| A A A Engineering | A A A Engineering | — | (505) 238 7802 | Other | Marysville · Yuba County | — | — |
| A G Productions | A G Productions | — | (530) 632 2367 | GC, remodel, ADU | Olivehurst · Yuba County | — | — |
| A J S Landscaping | A J S Landscaping | aj@ajslandscaping.com | (530) 639 2263 | Windows, patio, painters | Browns Valley · Yuba County | — | — |
| A Pal Construction | Palosi Aurel | — | (530) 415 6023 | GC, remodel, ADU | Olivehurst · Yuba County | — | — |
| A&e Arborists Tree Care | A&e Arborists Tree Care | aearborists@gmail.com | (530) 790-5312 | Tree | Yuba City · Yuba County | — | — |
| Aaa Roofing Applicators | Casey Allen Gilbert | — | (530) 434 2941 | Other roofers | Brownsville · Yuba County | — | — |
| Able Electric Unit 24 | Able Electric Unit 24 | — | (530) 673-8086 | Electricians | Yuba City · Yuba County | — | — |
| Adam Tullett Electric | Adam Lane Tullett | — | (530) 559 0808 | Electricians | Loma Rica · Yuba County | — | — |
| Adams Painting | Adams Painting | — | (530) 315 3800 | Windows, patio, painters | Olivehurst · Yuba County | — | — |
| Advanced Integrated Pest Management | Advanced Integrated Pest Management | — | (916) 786-2404 | Pest, tile roofs | Yuba City · Yuba County | — | — |
| Advantage Building Solutions | Joel Johan Bueno | — | (530) 742 7660 | GC, remodel, ADU | Marysville · Yuba County | — | — |
| Advantage Home Inspections | Advantage Home Inspections | — | (916) 743-3989 | Inspectors | Lincoln · Yuba County | — | — |
| Ael Garage Doors | Ael Garage Doors | aelgaragedoors@gmail.com | (530) 741 2011 | GC, remodel, ADU | Wheatland · Yuba County | — | — |
| Ag-con Construction | David Ian Larricq | — | (530) 300 3032 | GC, remodel, ADU | Plumas Lake · Yuba County | — | — |
| Air Repair Heating And Air | Air Repair Heating And Air | heyvirgil@virgilshvac.com | (707) 384 3409 | HVAC | Plumas Lake · Yuba County | — | — |
| Aj Construction Pro Incorporated | Jaramillo Alejandro | — | (530) 923 5712 | GC, remodel, ADU | Olivehurst · Yuba County | — | — |
| Aldana Contracting | Aldana David | — | (916) 365 5856 | GC, remodel, ADU | Olivehurst · Yuba County | — | — |
| All American Lawn INC | Justin Luther Carmichael | — | (530) 845 1833 | Windows, patio, painters | Marysville · Yuba County | — | — |
| All Phase Systems Integration INC | Tony Walter Barber | — | (530) 923 2225 | Electricians | Olivehurst · Yuba County | — | — |
| All Power INC | Robert Jeffry Anderson | — | (530) 455 5152 | Electricians | Beale Afb · Yuba County | — | — |
| Allied Building Contractor | Allied Building Contractor | — | (530) 632 6027 | GC, remodel, ADU | Marysville · Yuba County | — | — |
| Aloha Sewer & Service LLC | Shane Michael Braden | — | (916) 382 6920 | Other | Olivehurst · Yuba County | — | — |
| Alpha Building Company | Lucas Lucatero | admin@alpha-building.com | (530) 216 6815 | GC, remodel, ADU | Olivehurst · Yuba County | — | — |
| Alpine Heating & Air Conditioning | Alpine Heating & Air Conditioning | 1alpinehvac@gmail.com | (916) 850 9700 | HVAC | Plumas Lake · Yuba County | — | — |
| Alr Painting | Alr Painting | alrpainting916@gmail.com | (916) 639 9086 | Windows, patio, painters | Wheatland · Yuba County | — | — |
| America's Contracting Services INC | Lowell Thomas Callahan | — | (530) 953 3232 | HVAC | Wheatland · Yuba County | — | — |
| American Tree Service | Jesse Floyd Stevens | — | (530) 383 3347 | Tree | Browns Valley · Yuba County | — | — |
| Anderson Construction | David Merrill Anderson | — | (530) 510 0637 | Other | Browns Valley · Yuba County | — | — |
| Anderson Construction | Andrew James Anderson | — | (530) 870 6639 | GC, remodel, ADU | Browns Valley · Yuba County | — | — |
| Andrew Duncan's Heating & Air Conditioning | Andrew Douglas Duncan | — | (530) 370 6295 | HVAC | Oregon House · Yuba County | — | — |
| Anthony Wallace | Anthony Wallace | — | (530) 632 6361 | Other | Marysville · Yuba County | — | — |
| Ar Painting | Ar Painting | — | (530) 979 1426 | Windows, patio, painters | Olivehurst · Yuba County | — | — |
| Arellano's Painting | Arellano's Painting | — | (916) 770 6823 | Windows, patio, painters | Olivehurst · Yuba County | — | — |
| Arellano's Roofing | Arellano Escobar Cornelio | — | (530) 329 4032 | Other roofers | Olivehurst · Yuba County | — | — |