| A - Tech Plumbing & Fire Protection | Leung Powing | — | (510) 918 3330 | Other | Cupertino · Santa Clara County | — | — |
| A - Tile Co | Donald William Abreu | — | (408) 396 6331 | Other | Santa Clara · Santa Clara County | — | — |
| A - Z Tile | A - Z Tile | — | (408) 828 1895 | Other | San Jose · Santa Clara County | — | — |
| A / C Electric | Adrien Benny Cedillo | — | (408) 887 2600 | Electricians | Santa Clara · Santa Clara County | — | — |
| A 1 - Stump Removal | A 1 - Stump Removal | — | (408) 439 6975 | Tree | San Jose · Santa Clara County | — | — |
| A 1 Nor/cal & Son | A 1 Nor/cal & Son | — | (408) 264 1405 | Other roofers | San Jose · Santa Clara County | — | — |
| A 1 On Track Sliding Door Repair And Installation INC | Louis David Floyd | — | (408) 866 0267 | Other | Campbell · Santa Clara County | — | — |
| A 2 Z Builders | Hector Gerardo Perez Coello | — | (408) 500 7631 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| A 2 Z Construction | Tin Quang Pham | — | (408) 460 0745 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| A A A Electric | Willis Cam Tang | — | (408) 557 8899 | Electricians | San Jose · Santa Clara County | — | — |
| A A A Floors & Interiors INC | Shahabi Homan | — | (408) 202 3333 | Other | Campbell · Santa Clara County | — | — |
| A A A Meca Construction | Gomez Angel | — | (408) 590 4460 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| A A Construction Co | Robin Hoa Tu | — | (408) 827 1161 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| A A Electrical | Hoang Anh Nguyen | — | (408) 858 7130 | Electricians | San Jose · Santa Clara County | — | — |
| A Able American Contractor | A Able American Contractor | — | (408) 358 3329 | Electricians | Los Gatos · Santa Clara County | — | — |
| A Able Locksmith INC | Paul Nhutminh Nguyen | — | (408) 246 6868 | Other | Milpitas · Santa Clara County | — | — |
| A And D Construction | Baldemar Mancilla Barragan | amkryukov@gmail.com | (408) 600 7772 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| A And D Paint Pro | A And D Paint Pro | — | (408) 401 7197 | Windows, patio, painters | San Jose · Santa Clara County | — | — |
| A And L Benitez Electric | Rolando Ramos Benitez | — | (408) 750 4070 | Electricians | San Jose · Santa Clara County | — | — |
| A And S Contracting | Ashok Kumar Singh | — | (650) 714 5493 | GC, remodel, ADU | Palo Alto · Santa Clara County | — | — |
| A B A Construction | Abraham Marino Aguirre | — | (408) 702 7330 | GC, remodel, ADU | Sunnyvale · Santa Clara County | — | — |
| A B C Drywall | A B C Drywall | — | (925) 360 3865 | Other | Campbell · Santa Clara County | — | — |
| A B C Lock And Key Co | Joe Young Choe | — | (408) 241 4096 | Other | San Jose · Santa Clara County | — | — |
| A B C Marble Tile And Granite INC | Flores Roberto Hernandez | — | (650) 630 0065 | GC, remodel, ADU | East Palo Alto · Santa Clara County | — | — |
| A B C Plumbing And Drain | Richard Salvador Alvarez | — | (408) 444 2065 | Other | San Jose · Santa Clara County | — | — |
| A B C Tree Service | Velazquez Erasto | — | (408) 838 7430 | Tree | Gilroy · Santa Clara County | — | — |
| A B Castro Plumbing INC | Aaron Bernard Castro | — | (408) 993 9004 | Windows, patio, painters | San Jose · Santa Clara County | — | — |
| A B E Plumbing | A B E Plumbing | — | (408) 946 0870 | GC, remodel, ADU | Milpitas · Santa Clara County | — | — |
| A B L Painting INC | Lopez Ernesto Bojorquez | — | (408) 449 7297 | Windows, patio, painters | San Jose · Santa Clara County | — | — |
| A B Landscaping INC | Victor Manuel Arellano | — | (408) 362 9251 | Windows, patio, painters | San Jose · Santa Clara County | — | — |
| A B S Manufacturers INC | Ricardo Avila Mancias | — | (408) 295 5984 | Other | San Jose · Santa Clara County | — | — |
| A B W Construction INC | Paul Michael Tuttle | — | (408) 781 1307 | GC, remodel, ADU | Los Gatos · Santa Clara County | — | — |
| A B Z Builders INC | Anandra Singh | — | (408) 661 7106 | Other roofers | Milpitas · Santa Clara County | — | — |
| A C Construction Services And Management | John Jeffrey Athens | — | (408) 426 6203 | GC, remodel, ADU | Los Altos · Santa Clara County | — | — |
| A C Drywall INC | Daniel Armenta-Cuevas | — | (408) 594 0747 | Other | Santa Clara · Santa Clara County | — | — |
| A C G Masonry INC | Garduno Avinadab Cristobal | micah@micahrich.com | (408) 420 5044 | Other | Sunnyvale · Santa Clara County | — | — |
| A C M Construction INC | Amber Elizabeth Mc Dowell | — | (408) 921 3893 | Electricians | San Jose · Santa Clara County | — | — |
| A C Painting | A C Painting | — | (408) 605 6681 | Windows, patio, painters | Sunnyvale · Santa Clara County | — | — |
| A Classic Contractor | A Classic Contractor | — | (408) 499 5338 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| A D A Demolition INC | Diana Castro Manriquez | — | (408) 899 2836 | Windows, patio, painters | San Jose · Santa Clara County | — | — |