| Ay Painting INC | Yi Andy | — | (408) 568 9467 | Windows, patio, painters | Sunnyvale · Santa Clara County | — | — |
| Ayala Electric Service | Christian Israel Ayala | — | (408) 396 3077 | Electricians | Santa Clara · Santa Clara County | — | — |
| Ayala Painting Pros | Luis Ernesto Ayala | luis@ayalapaintingpros.com | (408) 858 9545 | Windows, patio, painters | San Jose · Santa Clara County | — | — |
| Ayce Tree & Palm Care INC | Cortez Miguel Menera | — | (408) 852 7795 | Other | San Jose · Santa Clara County | — | — |
| Ayon Construction | Ayon Arellano Alfonso | — | (408) 710 5119 | GC, remodel, ADU | Gilroy · Santa Clara County | — | — |
| Az Refrigeration | Marat Arslanov | — | (623) 999 1777 | HVAC | San Jose · Santa Clara County | — | — |
| Aziz Construction | Osmani Azizullah | info@azizconstruction.com | (650) 787 5802 | GC, remodel, ADU | Palo Alto · Santa Clara County | — | — |
| Aztec Installtion Tile | Aztec Installtion Tile | — | (408) 205 9577 | Other | San Jose · Santa Clara County | — | — |
| Aztec Roofing | Ruben Herman Hernandez | — | (408) 509 2663 | Other roofers | Santa Clara · Santa Clara County | — | — |
| Aztec Tree Service | Jovanni Avalos | solumagency@gmail.com | (650) 630 1322 | Other | Santa Clara · Santa Clara County | — | — |
| Aztec Tree Services | Aztec Tree Services | — | (650) 640-2847 | Tree | Santa Clara · Santa Clara County | — | — |
| Azul Painting LLC | Jorge Roque Benjume | — | (408) 794 9213 | Windows, patio, painters | San Jose · Santa Clara County | — | — |
| Azure Construction Enterprises INC | Gurbir Singh Bhullar | — | (510) 589 9695 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| Azure Construction Unlimited INC | Gurbir Singh Bhullar | — | (510) 589 9695 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| B & B Construction & Managment | Moazeni Mehdi | — | (408) 472 5082 | GC, remodel, ADU | Saratoga · Santa Clara County | — | — |
| B & B Electric | Richard Robert Bresnahan | — | (408) 656 3352 | Electricians | San Jose · Santa Clara County | — | — |
| B & L Plumbing | B & L Plumbing | — | (408) 564 1390 | Other | San Jose · Santa Clara County | — | — |
| B A Drywall | B A Drywall | info@badrywall.com | (408) 313 3011 | Other | San Jose · Santa Clara County | — | — |
| B A Q I | B A Q I | — | (408) 489 1362 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| B A Torres Construction INC | Jose Luis Torres | batorresinc@gmail.com | (408) 568 1516 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| B A United Construction INC | Joe T Nuno | — | (669) 237 5849 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| B A Z Service Refrigeration INC | Edmon Ramzi Sawa | — | (408) 267 2241 | HVAC | San Jose · Santa Clara County | — | — |
| B B M T INC | Alex Rubashevsky | — | (650) 383 7399 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| B C Concrete | B C Concrete | — | (408) 210 3850 | Other | San Jose · Santa Clara County | — | — |
| B C Productions | B C Productions | — | (408) 244 5895 | GC, remodel, ADU | Santa Clara · Santa Clara County | — | — |
| B Davis INC | Bud Ryan Davis | — | (408) 436 4800 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| B E Electric | Tran Be | — | (408) 728 3540 | Electricians | San Jose · Santa Clara County | — | — |
| B G Electric | Brian Matthew Geddie | sales@bgelectric.com | (408) 209 5933 | Electricians | San Jose · Santa Clara County | — | — |
| B G W Construction | Bradford Gillette Iii Woolley | — | (650) 906 7569 | GC, remodel, ADU | Los Altos · Santa Clara County | — | — |
| B Green Construction INC | Gilberto Gonzalez | — | (408) 717 3328 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| B H K Construction | Tuan Hoang Nguyen | — | (408) 828 3064 | Electricians | Alviso · Santa Clara County | — | — |
| B J Electric INC | Brian Cheng | — | (408) 838 8041 | Electricians | San Jose · Santa Clara County | — | — |
| B Jowers Painting INC | Billy George Jowers | info@bjowerspainting.com | (408) 690 1133 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| B K Custom Builders INC | Brian Joseph Jr Kelly | — | (408) 690 5313 | GC, remodel, ADU | Saratoga · Santa Clara County | — | — |
| B Kohl Construction | Bruce Joseph Kohl | — | (408) 940 2487 | GC, remodel, ADU | Sunnyvale · Santa Clara County | — | — |
| B L Painting Co | Bartosz Lewandowski | — | (650) 714 9326 | Windows, patio, painters | Mountain View · Santa Clara County | — | — |
| B L R Electric | Bill Lawrence Rosingana | — | (408) 410 1502 | Electricians | San Jose · Santa Clara County | — | — |
| B M Construction | Bruce Wayne Mah | — | (408) 592 4501 | GC, remodel, ADU | Gilroy · Santa Clara County | — | — |
| B M J Us Builder INC | Brian Van Phuong | — | (408) 500 7853 | HVAC | San Jose · Santa Clara County | — | — |
| B N S Construction Co | Bahram Nosrati Shamlou | — | (408) 605 7777 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |