| Aleph Underground Pipelines INC | Vicencio Felipe Vazquez Ruiz | — | (408) 592 2335 | Other | San Jose · Santa Clara County | — | — |
| Alert Plumbing INC | Ochoa Ruben | — | (408) 272 1423 | Other | San Jose · Santa Clara County | — | — |
| Alex Construction | Ninron Alexander Lopez | — | (408) 428 2445 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| Alex Custom Builder INC | Ranferi Gomez | — | (408) 771 6740 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| Alex Gomez Landscape And Maintenance | Alex Gomez Landscape And Maintenance | — | (408) 761 5031 | Windows, patio, painters | San Jose · Santa Clara County | — | — |
| Alex Gutter INC | Alejandro Sr Gutierrez | — | (408) 297 2005 | Other roofers | San Jose · Santa Clara County | — | — |
| Alex J Hill Construction | Alexander John Hill | — | (408) 455 3629 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| Alex Price Construction | Price Alexander | — | (650) 575 1500 | GC, remodel, ADU | Los Altos · Santa Clara County | — | — |
| Alex Zvansov | Alex Zvansov | — | (650) 218 4468 | GC, remodel, ADU | Mountain View · Santa Clara County | — | — |
| Alex's Home Solutions | Alex's Home Solutions | — | (650) 269 3747 | GC, remodel, ADU | Mountain View · Santa Clara County | — | — |
| Alex's Plumbing And Rooter | Alex's Plumbing And Rooter | — | (408) 410 0028 | Other | San Jose · Santa Clara County | — | — |
| Alexander And Sons INC | Saatlou Sarkezzadeh Hormoz | — | (408) 515 2525 | Other | Campbell · Santa Clara County | — | — |
| Alexander F Marshall | Alexander F Marshall | — | (650) 250 2135 | GC, remodel, ADU | Palo Alto · Santa Clara County | — | — |
| Alexander Ross | Alexander Ross | — | (408) 728 0118 | GC, remodel, ADU | Los Gatos · Santa Clara County | — | — |
| Alexander Ross General Contracting INC | Alexander Joseph Ross | — | (408) 728 0118 | GC, remodel, ADU | Los Gatos · Santa Clara County | — | — |
| Alexander's Pavers INC | Eli Alexander Majano Sorto | — | (408) 717 2045 | Other | Sunnyvale · Santa Clara County | — | — |
| Alfaro Fire Protection Systems | Alfaro Fire Protection Systems | — | (408) 658 5908 | Other | Gilroy · Santa Clara County | — | — |
| Alfonso's Carpet Service | Perez Alfonso | — | (408) 605 3737 | Other | Campbell · Santa Clara County | — | — |
| Alfred's Floor Covering | Alfred's Floor Covering | — | (408) 835 2981 | Other | San Jose · Santa Clara County | — | — |
| Alfredo Romero | Alfredo Romero | — | (408) 710 1068 | Other | Morgan Hill · Santa Clara County | — | — |
| Alguera Construction | Edgar C Alguera | — | (408) 823 5514 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| Ali Building INC | Li Zhendong | info@alibuilding.com | (650) 668 6666 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| Ali's Construction & Remodeling INC | Mehrdad Ali Zamani | — | (408) 441 0967 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| Aliana's Building Company INC | Aliana's Building Company INC | — | (831) 435 0702 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| Aligned Developers | Kenneth Jay Tsuda | — | (408) 406 1301 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| All - American Overhead Construction | Abel Jr Alvarez | — | (831) 262 5843 | GC, remodel, ADU | Gilroy · Santa Clara County | — | — |
| All A Painting INC | Chan Bok Lee | — | (408) 621 0278 | Windows, patio, painters | Sunnyvale · Santa Clara County | — | — |
| All About Construction | Stephen David Casey | — | (408) 307 6001 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| All About Roofing Installation And Repair LLC | Desiree Juanita Zamora | — | (408) 426 0590 | Other roofers | San Jose · Santa Clara County | — | — |
| All American Construction | Jack Roland Armstrong | — | (408) 421 8729 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| All American Heating And Cooling INC | Bravlio Andre Delacruz Duran | — | (650) 942 3220 | HVAC | San Jose · Santa Clara County | — | — |
| All American Tree Care Solutions LLC | Pinon Brian Perez | — | (925) 664 3009 | Other | San Jose · Santa Clara County | — | — |
| All Appliance & HVAC Service INC | Ronald Aredo | — | (650) 261 6151 | HVAC | Sunnyvale · Santa Clara County | — | — |
| All Bay Area Electric INC | Salvador Jr Clemente | — | (408) 442 1599 | Electricians | San Jose · Santa Clara County | — | — |
| All Bay Area Floors Service | Ismael Arana Amezquita | — | (408) 778 7900 | Other | Morgan Hill · Santa Clara County | — | — |
| All Bay Concrete | All Bay Concrete | — | (408) 644 6517 | Other | San Jose · Santa Clara County | — | — |
| All Bay Demolition | All Bay Demolition | — | (408) 930 6204 | Other | Morgan Hill · Santa Clara County | — | — |
| All Bay Development INC | Martin Mathew Morgan | — | (408) 806 2600 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| All Bay Fire Protection INC | Richard Anthony Fedelin | — | (408) 926 2237 | Other | San Jose · Santa Clara County | — | — |
| All Bay Hardwood Floors | All Bay Hardwood Floors | — | (408) 688 7578 | Other | San Jose · Santa Clara County | — | — |