| A&a Pools INC | Alcantar Aceves Ramon | — | (669) 262 7849 | Pool | San Jose · Santa Clara County | — | — |
| A&m Custom Home Construction INC | Mahmood Nikoomanzar | — | (650) 447 9032 | GC, remodel, ADU | Cupertino · Santa Clara County | — | — |
| A&m Precise Drywall LLC | Maryann Lemus Munoz | — | (408) 833 4592 | Other | San Jose · Santa Clara County | — | — |
| A's Quality Concrete | A's Quality Concrete | — | (408) 500 9972 | Other | San Jose · Santa Clara County | — | — |
| A's Tree Service INC | Victor Alfonso Gomez Perez | — | (408) 600 8803 | Tree | San Jose · Santa Clara County | — | — |
| A+ Locksmith INC | Saeed Shirazi | — | (408) 927 7729 | Other | San Jose · Santa Clara County | — | — |
| A+ Painting | A+ Painting | — | (408) 244 1322 | Windows, patio, painters | San Jose · Santa Clara County | — | — |
| A+ Pool & Spa Services | Hiep Van Nguyen | — | (408) 649 1229 | Pool | San Jose · Santa Clara County | — | — |
| A+ Surface Solution | A+ Surface Solution | — | (559) 720 4690 | Other | San Jose · Santa Clara County | — | — |
| A-1 Asphalt | A-1 Asphalt | — | (408) 726 6188 | Other | Milpitas · Santa Clara County | — | — |
| A-1 Construction & Management Co | Kwang Rock Chung | — | (408) 469 2628 | GC, remodel, ADU | Sunnyvale · Santa Clara County | — | — |
| A-1 Flooring Pro | A-1 Flooring Pro | — | (408) 829 1152 | Other | San Jose · Santa Clara County | — | — |
| A-1 Gates & Access INC | Katav Maayan | — | (800) 570 1277 | Other | San Jose · Santa Clara County | — | — |
| A-1 Gutter Guys | Anthony Edward Gardner | — | (408) 490 4326 | Other | Santa Clara · Santa Clara County | — | — |
| A-1 Hauling | A-1 Hauling | — | (408) 605 4224 | Other | San Jose · Santa Clara County | — | — |
| A-1 Heating And Cooling INC | Kimberle Ann| Gentile Kimberly Ann Gentile | — | (408) 283 9915 | HVAC | San Jose · Santa Clara County | — | — |
| A-1 Quality Construction | Frank Bremmett Payton | — | (408) 836 6866 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| A-h Construction INC | Andy Bao Hoang | sales@ahconstruction.com | (408) 216 3772 | Electricians | San Jose · Santa Clara County | — | — |
| A.l.o.s Construction INC | Jesus Manuel Juarez | — | (650) 771 6167 | GC, remodel, ADU | Campbell · Santa Clara County | — | — |
| A1 Bay Area Glass | A1 Bay Area Glass | — | (408) 910 9878 | Windows, patio, painters | San Jose · Santa Clara County | — | — |
| A1 Tree Care LLC | Maria Elena Baez | — | (408) 417 7922 | Other | San Jose · Santa Clara County | — | — |
| A1 Victor's Tile Company | Victor James Peres | — | (408) 279 2591 | Other | San Jose · Santa Clara County | — | — |
| A2 Land Investment LLC DBA Dean Construction | Akbar Abdollahi | — | (408) 202 1100 | GC, remodel, ADU | Los Altos · Santa Clara County | — | — |
| A2z Builders & Design | A2z Builders & Design | a2zbuildersdesign@gmail.com | (408) 832-1154 | GC, remodel, ADU | Santa Clara · Santa Clara County | — | — |
| A3 Mechanical Systems | A3 Mechanical Systems | — | (408) 639 8255 | HVAC | San Jose · Santa Clara County | — | — |
| A4 Heating And Air | A4 Heating And Air | — | (408) 415 0782 | HVAC | Gilroy · Santa Clara County | — | — |
| A7 Construction INC | Tam Hai Duong | — | (408) 505 8830 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| Aa & Art Framing INC | Gerson Estuardo Hernandez Vasquez | — | (408) 360 7885 | Other | San Jose · Santa Clara County | — | — |
| Aa Construction | Alejandro| Alex Alvarado-torres | — | (408) 799 9918 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| Aaa Bay Area Builders INC | Oscar Eduardo Moreno | contact@aaabayareabuilders.com | (408) 313 5591 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| Aaa Construction | Fasihi Ramandi Mohsen | yuriy@aaaconstruction.com | (408) 728 3854 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| Aaa Construction | Eliezer Yehoshua Kiselman | yuriy@aaaconstruction.com | (832) 886 3743 | GC, remodel, ADU | Mountain View · Santa Clara County | — | — |
| Aaa Construction Norcal | Jose Mauricio Plata Luna | — | (408) 219 3316 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| Aaa Landscaping Group INC | Pedro Eduardo Barajas | — | (408) 422 1679 | Windows, patio, painters | San Jose · Santa Clara County | — | — |
| Aaa Painting & Home Restoration | Aaa Painting & Home Restoration | — | (650) 743 4398 | GC, remodel, ADU | Palo Alto · Santa Clara County | — | — |
| Aaa Plumbing & Construction | Vuong Minh Nguyen | — | (408) 561 7379 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| Aaleest Usa Construction INC | Mahdi Nourollahi | — | (650) 646 2030 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| Aaron Bradley Construction Repair And Remodeling | Diana Rae Bradley | — | (408) 202 7318 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| Aaron's Plumbing & Rooter | Aaron's Plumbing & Rooter | — | (408) 724 2650 | Other | Gilroy · Santa Clara County | — | — |
| Aashria LLC | Manish Rastogi | — | (408) 431 7003 | GC, remodel, ADU | Santa Clara · Santa Clara County | — | — |