| Feng K Plumbing Co | Xin Pei Feng | — | (415) 939 8822 | Other | San Francisco · San Francisco County | — | — |
| Ferdel Structural Steel | Yenefer Fernando Aguilar-Velasquez | — | (415) 318 0711 | Other | San Francisco · San Francisco County | — | — |
| Feregrino Electric | Jorge Antar Feregrino | — | (415) 635 8161 | Electricians | San Francisco · San Francisco County | — | — |
| Ferraru Supreme Works Limited Liability Company | Mendoza Javier Ferrer | — | (415) 341 0019 | Other | San Francisco · San Francisco County | — | — |
| Fgalicia Construction INC | Florentino Galicia | — | (415) 524 9553 | GC, remodel, ADU | San Francisco · San Francisco County | — | — |
| Fidato | Dominic Paul Della Maggiora | — | (888) 722 5821 | Electricians | San Francisco · San Francisco County | — | — |
| Field Construction INC | Randy Eugene Mccracken | — | (415) 648 8140 | GC, remodel, ADU | San Francisco · San Francisco County | — | — |
| Fifth Arch LLP | Peter Suen | — | (415) 513 6110 | GC, remodel, ADU | San Francisco · San Francisco County | — | — |
| Finbarr Collins Construction INC | Finbarr James Collins | — | (415) 420 2520 | GC, remodel, ADU | San Francisco · San Francisco County | — | — |
| Finbarr O'donovan Construction | Patrick Finbarr O'donovan | — | (415) 244 0766 | Other | San Francisco · San Francisco County | — | — |
| Fineen Mc Carthy | Fineen Mc Carthy | — | (415) 845 3739 | GC, remodel, ADU | San Francisco · San Francisco County | — | — |
| Finest South San Francisco Roof Repair | Finest South San Francisco Roof Repair | — | (650) 399-9958 | Other roofers | South San Francisco · San Francisco County | — | — |
| Finnegan Construction Co INC | Julian James Finnegan | — | (415) 731 1991 | GC, remodel, ADU | San Francisco · San Francisco County | — | — |
| Finnerty Electric | Neil Joseph Finnerty | — | (669) 248 9234 | Electricians | San Francisco · San Francisco County | — | — |
| Finnerty Plumbing | Finnerty Plumbing | — | (415) 225 6918 | GC, remodel, ADU | San Francisco · San Francisco County | — | — |
| Fiona Christopher | Fiona Christopher | — | (415) 652 4686 | Windows, patio, painters | San Francisco · San Francisco County | — | — |
| First Coat Pro Painting | First Coat Pro Painting | — | (415) 845 1599 | Windows, patio, painters | San Francisco · San Francisco County | — | — |
| First Last & Always | First Last & Always | deven@first-last-always.com | (415) 541 7978 | GC, remodel, ADU | San Francisco · San Francisco County | — | — |
| First Select Pest Control | First Select Pest Control | — | (510) 275-9975 | Pest, tile roofs | Richmond · San Francisco County | — | — |
| First Tech Networks INC | Jia An John Jiang | info@bamboocommunication.com | (415) 816 7111 | Other | San Francisco · San Francisco County | — | — |
| Fisher Design & Build INC | Valerie Andree Fisher | — | (415) 466 6200 | GC, remodel, ADU | San Francisco · San Francisco County | — | — |
| Five South Corp | Donald Edward Ii Maclean | — | (760) 846 9760 | GC, remodel, ADU | San Francisco · San Francisco County | — | — |
| Five Stars Electric | Carlos Humberto Aguilar Lara | — | (415) 286 4676 | Electricians | San Francisco · San Francisco County | — | — |
| Fix Wood Floor | Fix Wood Floor | — | (415) 652 7276 | Other | San Francisco · San Francisco County | — | — |
| Flanagan Construction | Patrick Colbert Flanagan | — | (415) 378 8506 | GC, remodel, ADU | San Francisco · San Francisco County | — | — |
| Flash Electric | Byron Rodolfo Sr Cruz | — | (415) 725 1923 | Electricians | San Francisco · San Francisco County | — | — |
| Flooring Alternatives INC | Mari Suzanne Strain | info@flooringalternatives.com | (510) 550 4449 | Other | San Francisco · San Francisco County | — | — |
| Flores Tree Service LLC | Jose Juan Delgado | — | (415) 342 0105 | Tree | San Francisco · San Francisco County | — | — |
| Fluxon INC | Petr Nikitenko | — | (855) 535 8966 | Electricians | San Francisco · San Francisco County | — | — |
| Fly Cloud Construction INC | Brian Paul Perrin | — | (415) 879 6118 | GC, remodel, ADU | San Francisco · San Francisco County | — | — |
| Flying Colors | Flying Colors | flyco@flyingcolors.com | (415) 564 4500 | GC, remodel, ADU | San Francisco · San Francisco County | — | — |
| Fma Builders | Aaron Michael Bortolazzo | — | (415) 522 5930 | GC, remodel, ADU | San Francisco · San Francisco County | — | — |
| Fmp Mechanical LLC | Alan Patrick Moran | office@fmpmechanical.com | (415) 529 4656 | HVAC | San Francisco · San Francisco County | — | — |
| Fnl Construction Management | Lau Fung Sze | — | (415) 596 3030 | GC, remodel, ADU | San Francisco · San Francisco County | — | — |
| Fog City Builders Corp | Robert Allen Keller | — | (415) 684 0719 | GC, remodel, ADU | San Francisco · San Francisco County | — | — |
| Fog City Painting | Fog City Painting | — | (415) 712 6301 | Windows, patio, painters | San Francisco · San Francisco County | — | — |
| Fong's Cons & Plumbing | Fong's Cons & Plumbing | — | (415) 760 9238 | GC, remodel, ADU | San Francisco · San Francisco County | — | — |
| Fong's Sheet Metal And Mechanical INC | Kin Wah Fong | — | (415) 822 8668 | Other | San Francisco · San Francisco County | — | — |
| Fonseca Marble And Tile INC | Fonseca Rolando | — | (415) 333 5949 | Other | San Francisco · San Francisco County | — | — |
| Fontana | Gregory Raymond Fontana | firstname@fontana.com | (415) 596 2253 | Other | San Francisco · San Francisco County | — | — |