| Andy Electric Services | Sammy Lamsang Lau | — | (415) 359 8938 | Electricians | San Francisco · San Francisco County | — | — |
| Andy Hl Construction INC | Chunle Zhao | — | (415) 816 6677 | GC, remodel, ADU | San Francisco · San Francisco County | — | — |
| Andy Nguyen | Andy Nguyen | andy@andy-nguyen.com | (415) 670 0507 | GC, remodel, ADU | San Francisco · San Francisco County | — | — |
| Andy's Mechanical | Andy's Mechanical | — | (415) 309 7786 | HVAC | San Francisco · San Francisco County | — | — |
| Angotti & Reilly INC | James Patrick Reilly | — | (415) 575 3700 | GC, remodel, ADU | San Francisco · San Francisco County | — | — |
| Animal Control & Removal Of San Francisco | Animal Control & Removal Of San Francisco | — | (877) 790-4056 | Pest, tile roofs | San Francisco · San Francisco County | — | — |
| Animal Control & Removal San Francisco | Animal Control & Removal San Francisco | — | (321) 503-3990 | Pest, tile roofs | San Francisco · San Francisco County | — | — |
| Ann Enea | Ann Enea | — | (415) 377 6129 | Electricians | San Francisco · San Francisco County | — | — |
| Answer Plumbing INC | Jarred Harlen Wilson | office@answerplumbing.com | (415) 530-0000 | Other | San Francisco · San Francisco County | — | — |
| Anthony Costagli Painting Contractor | Anthony Costagli Painting Contractor | — | (415) 333 9116 | Windows, patio, painters | San Francisco · San Francisco County | — | — |
| Anthony Lynch | Anthony Lynch | — | (415) 308 7302 | GC, remodel, ADU | San Francisco · San Francisco County | — | — |
| Anthony Sanchelli Remodeling | Anthony Sanchelli Remodeling | — | (510) 861 7992 | GC, remodel, ADU | San Francisco · San Francisco County | — | — |
| Anthony Tse | Anthony Tse | — | (415) 828 9305 | GC, remodel, ADU | San Francisco · San Francisco County | — | — |
| Anthony Varni | Anthony Varni | — | (415) 387 0171 | GC, remodel, ADU | San Francisco · San Francisco County | — | — |
| Anthony Williamson | Anthony Williamson | — | (609) 226 3241 | GC, remodel, ADU | San Francisco · San Francisco County | — | — |
| Anthony's Roofing Co | Anthony Bi Tran | — | (415) 740 5223 | Other roofers | San Francisco · San Francisco County | — | — |
| Anton Electric | Jaber Anton | — | (415) 531 3687 | Electricians | San Francisco · San Francisco County | — | — |
| Antonio Anguiano Painting | Antonio Anguiano Painting | — | (415) 412 1289 | Windows, patio, painters | San Francisco · San Francisco County | — | — |
| Antormen INC | Larry Venturia Woods | — | (415) 980 9606 | GC, remodel, ADU | San Francisco · San Francisco County | — | — |
| Anwire LLC | Anouar Chikhaoui | — | (415) 724 0330 | Electricians | San Francisco · San Francisco County | — | — |
| Anything Is Possible Construction | Ye Guolian | — | (415) 887 8569 | GC, remodel, ADU | San Francisco · San Francisco County | — | — |
| Aotearoa Construction | Perry Vincent Stephens | — | (415) 681 7944 | GC, remodel, ADU | San Francisco · San Francisco County | — | — |
| Apex Build Solutions LLC | James Brian Mateo | — | (650) 797 5522 | Other | San Francisco · San Francisco County | — | — |
| Apex Construction And Consulting INC | Travis Ryan Gullickson | — | (530) 559 7419 | GC, remodel, ADU | San Francisco · San Francisco County | — | — |
| Apex Electric & Air | Lusheng Liu | — | (415) 587 8729 | HVAC | San Francisco · San Francisco County | — | — |
| Aplo Automation LLC | Joshua Jordan Machado | — | (661) 903 0632 | Electricians | San Francisco · San Francisco County | — | — |
| Apollo Construction Company INC | Nikolaos Hristos Mastrokyriakos | — | (415) 587 7452 | GC, remodel, ADU | San Francisco · San Francisco County | — | — |
| Apollo Heating And Ventilating | Apollo Heating And Ventilating | — | (415) 585 3635 | HVAC | San Francisco · San Francisco County | — | — |
| Apollo Painting | Apollo Painting | — | (415) 359 5633 | Windows, patio, painters | San Francisco · San Francisco County | — | — |
| Apollo Roofing Company | Apollo Roofing Company | — | (925) 701-8458 | Other roofers | San Francisco · San Francisco County | — | — |
| Appel Tile | Appel Tile | jim@appeltile.com | (415) 706 0908 | Other | San Francisco · San Francisco County | — | — |
| Appetite For Construction INC | Michael David Jr Mc Guire | appetite4construction@gmail.com | (415) 609 6965 | GC, remodel, ADU | San Francisco · San Francisco County | — | — |
| Apple Electric | Vladimir Dyrma | — | (415) 933 3488 | Electricians | San Francisco · San Francisco County | — | — |
| Applied General Construction INC | Gene Sun Wan | — | (415) 609 5088 | GC, remodel, ADU | San Francisco · San Francisco County | — | — |
| Applied Video Solutions INC | Shimolin Dmitriy | — | (415) 824 1717 | Electricians | San Francisco · San Francisco County | — | — |
| Aq Painting Sf | Aq Painting Sf | aqpainting@gmail.com | (415) 260 4062 | Windows, patio, painters | San Francisco · San Francisco County | — | — |
| Aquiles Flooring | Aquiles Flooring | — | (415) 816 1932 | Other | San Francisco · San Francisco County | — | — |
| Arana Group INC | Ronald Alberto Arana | — | (415) 656 0129 | GC, remodel, ADU | San Francisco · San Francisco County | — | — |
| Arborist Now INC DBA Arborist Now | Jean-Claude Rochat | contact@arboristnow.com | (415) 310 7781 | Windows, patio, painters | San Francisco · San Francisco County | — | — |
| Arch Construction INC | Sang Woo Park | — | (415) 640 7557 | Other roofers | San Francisco · San Francisco County | — | — |