| Americool Comfort | Salehi Seyed Pouria Rashid | — | (570) 438 2665 | HVAC | San Jose · Santa Clara County | — | — |
| Amerigent Services LLC | Soo Yeon Koo | — | (408) 234 7606 | GC, remodel, ADU | Sunnyvale · Santa Clara County | — | — |
| Ames 2 Please Landscaping INC | Alfredo Torres | — | (408) 460 0659 | Windows, patio, painters | San Martin · Santa Clara County | — | — |
| Amex Construction | Khanh Cong Tran | — | (408) 892 3215 | Other roofers | San Jose · Santa Clara County | — | — |
| Amex Painting INC | Zavala Jose | — | (408) 623 5926 | Windows, patio, painters | San Jose · Santa Clara County | — | — |
| Amg Design And Build | Amg Design And Build | — | (408) 628 3253 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| Amk Corporation INC | Julio C Jimenez | — | (408) 646 7828 | Electricians | San Jose · Santa Clara County | — | — |
| Amm Tech Solutions | Amm Tech Solutions | — | (408) 634 0006 | Other | Morgan Hill · Santa Clara County | — | — |
| Ammirato Construction INC | John Gerald Ammirato | office@ammiratoconstruction.com | (408) 249 3869 | GC, remodel, ADU | Campbell · Santa Clara County | — | — |
| Amnova Builders | Atlai Morales | — | (951) 903 2067 | GC, remodel, ADU | Campbell · Santa Clara County | — | — |
| Amontes General Building Construction | Montes Peralta Adan | — | (408) 642 7055 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| Amp Construction Services INC | Enis Tursic | — | (408) 799 4206 | GC, remodel, ADU | Campbell · Santa Clara County | — | — |
| Amplified Construction | Randolph Martin Dinga | — | (408) 832 5402 | GC, remodel, ADU | Sunnyvale · Santa Clara County | — | — |
| Amrock Construction INC | Masoud Ezatagha | — | (408) 690 6161 | GC, remodel, ADU | Campbell · Santa Clara County | — | — |
| Ams Electric LLC DBA Prime Electric | Aaron Herman Hankes | — | (925) 961 1600 | Electricians | San Jose · Santa Clara County | — | — |
| Amtex Rodent Solutions | Donald Fred Jr Dupont | — | (949) 818-5629 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| An / Be Contractors INC | Adriana Vega | office@anbecontractors.com | (408) 613 7848 | Other roofers | San Jose · Santa Clara County | — | — |
| An Builder INC | Nha Thanh Tran | — | (408) 818 0959 | Electricians | San Jose · Santa Clara County | — | — |
| An Ky Construction INC | Hung Tu | — | (408) 234 2673 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| Anchiale Building Systems INC | Martinez Jesus | — | (800) 260 0981 | Electricians | Gilroy · Santa Clara County | — | — |
| Anchor Electric | Gus William Kanakis | — | (408) 921 9292 | Electricians | San Jose · Santa Clara County | — | — |
| Ancore Construction LLC | Sasan Sayyah | — | (408) 348 1039 | GC, remodel, ADU | Cupertino · Santa Clara County | — | — |
| Andersen Plumbing | Andersen Plumbing | — | (408) 833 8589 | Other | San Jose · Santa Clara County | — | — |
| Anderson Builders | Anderson Builders | — | (408) 781 8884 | GC, remodel, ADU | Sunnyvale · Santa Clara County | — | — |
| Anderson Construction | William Page Anderson | — | (408) 315 0300 | Electricians | Sunnyvale · Santa Clara County | — | — |
| Anderson Enterprise | Anderson Enterprise | — | (408) 676 7331 | GC, remodel, ADU | Gilroy · Santa Clara County | — | — |
| Anderson Pacific Engineering Construction INC | Peter Ernest Anderson | — | (408) 970 9900 | Electricians | Santa Clara · Santa Clara County | — | — |
| Anderson Radiant Heating | Anderson Radiant Heating | — | (408) 378 3868 | HVAC | Campbell · Santa Clara County | — | — |
| Anderson Windows | Anderson Windows | — | (800) 426-4261 | Windows, patio, painters | Santa Clara · Santa Clara County | — | — |
| Anderson's Tree Care LLC | Douglas Alan Anderson | — | (408) 226 8733 | Windows, patio, painters | San Jose · Santa Clara County | — | — |
| Andrade Builders INC | Christina Marie Andrade | — | (408) 272 7468 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| Andrade Concrete Construction LLC | Daniel Joseph Andrade | — | (408) 892 0519 | Other | Gilroy · Santa Clara County | — | — |
| Andrade Sheet Metal | Andrade Sheet Metal | — | (408) 390 6986 | Other | San Jose · Santa Clara County | — | — |
| Andrade's Plumbing | Andrade's Plumbing | — | (408) 221 4862 | Other | Sunnyvale · Santa Clara County | — | — |
| Andrew L Bradvica | Andrew L Bradvica | — | (619) 920 4049 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| Andrew Perez Plumbing INC DBA Signature Plumbing | Andrew Albert Perez | — | (408) 593 2400 | Other | San Jose · Santa Clara County | — | — |
| Andy Cabinet Corporation | Andy Do | andydo@andycabinet.com | (408) 646 1429 | Other | San Jose · Santa Clara County | — | — |
| Andy Ling | Andy Ling | — | (408) 802 8644 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| Andy's Concrete Solutions INC | Andres Jr Uribe | — | (408) 705 8659 | Other | San Martin · Santa Clara County | — | — |
| Andy's Pool Service | Andrew Mitchell Hallin | info@andyspoolservice.com | (404) 355-8218 | Pool | Los Altos · Santa Clara County | — | — |