| Graham Construction | David Jay Graham | — | (510) 673 8740 | Electricians | Livermore · Alameda County | — | — |
| Graham Tree Service INC | Raymond Gerard Graham | — | (510) 383 9585 | Tree | San Leandro · Alameda County | — | — |
| Grand Gutters | Rashell Lynn Dithomas | — | (510) 791 9811 | Other | Livermore · Alameda County | — | — |
| Grand Industries INC | Mark Justin Mulligan | — | (510) 534 6502 | GC, remodel, ADU | Oakland · Alameda County | — | — |
| Grand Luxury Builders | Jonathan Ting | — | (510) 468 2788 | GC, remodel, ADU | Fremont · Alameda County | — | — |
| Grand View Construction INC | Tae Woon Chon | — | (650) 409 7212 | GC, remodel, ADU | Fremont · Alameda County | — | — |
| Grand Vista Landscape INC | Erika Alvarez | — | (925) 525 1133 | Windows, patio, painters | Livermore · Alameda County | — | — |
| Grand Wheelchair Assist Equipment | Rashid Adbul Shalizi | — | (510) 353 1999 | Other | Fremont · Alameda County | — | — |
| Grandella Construction | Scott Darren Coldren | — | (510) 791 9811 | GC, remodel, ADU | Livermore · Alameda County | — | — |
| Grandeur Construction INC | Kwan F Wong | — | (510) 282 7257 | GC, remodel, ADU | Castro Valley · Alameda County | — | — |
| Grandview Builder INC | Jing Xin Jiang | — | (510) 200 6730 | Electricians | Hayward · Alameda County | — | — |
| Grant Construction | Nathan Andrew Grant | — | (510) 229 0875 | GC, remodel, ADU | Berkeley · Alameda County | — | — |
| Grant's Plumbing | Grant's Plumbing | — | (925) 575 0907 | Other | Newark · Alameda County | — | — |
| Graves Family Faith Builders INC | Kimberly Ann Graves | — | (925) 766 3838 | GC, remodel, ADU | Hayward · Alameda County | — | — |
| Grayson Group Construction | Hamid Mehrbakhsh Tehrani | — | (510) 676 1158 | GC, remodel, ADU | Berkeley · Alameda County | — | — |
| Great Finishes Construction Co | Henry Warren Rene Hofmann | — | (650) 619 1888 | GC, remodel, ADU | Fremont · Alameda County | — | — |
| Great Ma Construction | Ma Yuhang | — | (510) 813 8193 | GC, remodel, ADU | San Leandro · Alameda County | — | — |
| Great World Builder Co INC | Ivan Jia-Jun Pan | — | (510) 207 6262 | GC, remodel, ADU | San Leandro · Alameda County | — | — |
| Greathouse Construction | Harold Thomas Jr Greathouse | — | (510) 523 7782 | GC, remodel, ADU | Alameda · Alameda County | — | — |
| Green & Associates Construction Co | Christopher Noel Green | — | (510) 828 0281 | GC, remodel, ADU | San Leandro · Alameda County | — | — |
| Green & Clean Company | Xuan Thanh Hua | john@greenclean.com | (510) 261 2691 | Other roofers | Oakland · Alameda County | — | — |
| Green Construction | Jeffrey Scott Green | — | (510) 790 0755 | GC, remodel, ADU | Fremont · Alameda County | — | — |
| Green County Homes INC | Juan Jose Bandera | — | (925) 699 8314 | GC, remodel, ADU | Dublin · Alameda County | — | — |
| Green Electrical Company | Bruno Abreu Borgo | — | (415) 250 8324 | Electricians | Oakland · Alameda County | — | — |
| Green Gallery Landscaping INC | Nathan Timothy Parsley | — | (510) 853 1719 | Windows, patio, painters | Oakland · Alameda County | — | — |
| Green Globe Construction Services | Rinard Montrel Ford | — | (415) 756 0379 | GC, remodel, ADU | Hayward · Alameda County | — | — |
| Green Growth Industries INC | Roger Scott Eckholm | jessica@greengrowthindustries.com | (925) 484 3481 | Windows, patio, painters | Pleasanton · Alameda County | — | — |
| Green Hammer Design | Green Hammer Design | information@greenhammerdesign.com | (510) 540 5558 | GC, remodel, ADU | Oakland · Alameda County | — | — |
| Green Home Construction INC | Toan My Ly | — | (510) 673 4769 | HVAC | Newark · Alameda County | — | — |
| Green Huse Gardens INC | Green Anne Huse | — | (510) 593 3490 | Windows, patio, painters | Berkeley · Alameda County | — | — |
| Green Living Builders LLC | Rolf Matthew Bell | greenlivingbuilders@gmail.com | (510) 295 9322 | GC, remodel, ADU | Berkeley · Alameda County | — | — |
| Green Meadows Painting Company | Bryan Alejandro Morales | — | (415) 529 0917 | Windows, patio, painters | Hayward · Alameda County | — | — |
| Green Room Painting And Decorating | Green Room Painting And Decorating | — | (510) 695 9054 | Windows, patio, painters | Hayward · Alameda County | — | — |
| Green Sequoia Construction Group | Green Sequoia Construction Group | — | (510) 544-7765 | GC, remodel, ADU | Alameda · Alameda County | — | — |
| Green Terra Tree And Landscape | Green Terra Tree And Landscape | — | (510) 436 5403 | Windows, patio, painters | Oakland · Alameda County | — | — |
| Green Valley Build INC | Michael Stanton Riter | — | (415) 515 6625 | GC, remodel, ADU | Pleasanton · Alameda County | — | — |
| Green Valley Group | Joel Armando Salvatierra Mojica | — | (925) 243 1420 | Windows, patio, painters | Livermore · Alameda County | — | — |
| Green Werx | Green Werx | — | (925) 344 4688 | GC, remodel, ADU | Livermore · Alameda County | — | — |
| Greencraft Corporation | Chien-Cheng Wu | — | (510) 701 2862 | Windows, patio, painters | Berkeley · Alameda County | — | — |
| Greenelectric Us | Greenelectric Us | andres@greenelectricus.com | (415) 410 4644 | Electricians | Berkeley · Alameda County | — | — |