| Gautam Chandhoke | Gautam Chandhoke | — | (734) 516 8814 | GC, remodel, ADU | Mountain House · San Joaquin County | — | — |
| Gayler Building Company | Dennis Edward Gayler | — | (925) 381 7753 | GC, remodel, ADU | Tracy · San Joaquin County | — | — |
| Gb Innovations Flooring | Benavides Gerardo Barragan | — | (209) 302-7763 | Other | Manteca · San Joaquin County | — | — |
| Gc Bauer INC | Joshua Adam Bauer | — | (209) 689 7692 | GC, remodel, ADU | Stockton · San Joaquin County | — | — |
| Gc Multitrade Construction | John Wei Ming Yeh | — | (916) 880 8201 | GC, remodel, ADU | Stockton · San Joaquin County | — | — |
| Gd General Contracting LLC | David Lee Burgess | — | (209) 836 4698 | GC, remodel, ADU | Tracy · San Joaquin County | — | — |
| Gda-sod Landscaping | Gda-sod Landscaping | — | (209) 283 1188 | Windows, patio, painters | Lodi · San Joaquin County | — | — |
| Gecko Concrete INC A California Corporation | Marco Tulio Lopez | — | (209) 607 5659 | Other | Manteca · San Joaquin County | — | — |
| Geiger Manufacturing INC | Roger Alan Haack | — | (209) 464 7746 | Other | Stockton · San Joaquin County | — | — |
| Gemstone Construction INC | Juan Manuel Carbajal-Rodriguez | micah@micahrich.com | (209) 452 5085 | GC, remodel, ADU | Acampo · San Joaquin County | — | — |
| Gen X Electric INC | Manuel Louis Montes | — | (209) 800 2800 | Electricians | Stockton · San Joaquin County | — | — |
| George A Julian Construction | George Asuncion Julian | — | (408) 464 8991 | GC, remodel, ADU | Manteca · San Joaquin County | — | — |
| George Adrian | George Adrian | — | (209) 365 3703 | Electricians | Acampo · San Joaquin County | — | — |
| George Cosgrove Construction | George Douglas Cosgrove | — | (209) 298 1845 | GC, remodel, ADU | Stockton · San Joaquin County | — | — |
| George J Gomez Construction INC | George Julian Jr Gomez | — | (209) 321 9926 | GC, remodel, ADU | Tracy · San Joaquin County | — | — |
| German Medina | German Medina | — | (209) 244 5801 | Other | Stockton · San Joaquin County | — | — |
| Gg&n Plumbing Solutions INC | Alfredo Adalberto Nunez Aguirre | — | (408) 391 4608 | Other | Tracy · San Joaquin County | — | — |
| Ggg Construction Solutions INC | Gilberto Sr Alfaro Alcaraz | — | (209) 612 9735 | GC, remodel, ADU | Thornton · San Joaquin County | — | — |
| Ggg Services INC | Gomez Morales Melissa | brad@gggservices.com | (209) 629 9785 | Windows, patio, painters | Tracy · San Joaquin County | — | — |
| Ghent Electric | Steve Michael Ghent | — | (209) 649 2632 | Electricians | Lodi · San Joaquin County | — | — |
| Giannini Electrical INC | Nick Giannini | — | (209) 406 4391 | Electricians | Linden · San Joaquin County | — | — |
| Gibbons Painting | Gibbons Painting | — | (415) 572 2884 | Windows, patio, painters | Stockton · San Joaquin County | — | — |
| Gibson Masonry | Gibson Masonry | — | (209) 759 3626 | Other | Clements · San Joaquin County | — | — |
| Gibson Seamless Gutter's | Gibson Seamless Gutter's | — | (209) 525 9771 | Other | Tracy · San Joaquin County | — | — |
| Gideon Construction | Brian Scott Gideon | — | (209) 482 5626 | GC, remodel, ADU | Linden · San Joaquin County | — | — |
| Gigliotti Construction | Frank Thomas Gigliotti | — | (209) 601 2040 | GC, remodel, ADU | Tracy · San Joaquin County | — | — |
| Gilley Construction & Restoration INC | Aaron Joseph Gilley | — | (916) 664 6200 | GC, remodel, ADU | Lodi · San Joaquin County | — | — |
| Gkbi Construction LLC | Girdaldo Rios | — | (209) 395 6092 | GC, remodel, ADU | Lodi · San Joaquin County | — | — |
| Gl West Builder INC | Lapuste Gheorghe | glwestbuilder@yahoo.com | (408) 304 8373 | GC, remodel, ADU | Stockton · San Joaquin County | — | — |
| Glacier Works Construction & Remodeling Inc. | Zoltan Stiener | — | (415) 290 3140 | GC, remodel, ADU | Tracy · San Joaquin County | — | — |
| Gladden Equipment Erectors INC | Clifford Bustillos Riberal | — | (209) 839 1478 | Other | Tracy · San Joaquin County | — | — |
| Glaser Electric | Robert Michael Glaser | — | (209) 986 8092 | Electricians | Stockton · San Joaquin County | — | — |
| Glenn P Thorns DBA Glenns General Engineering | Glenns General Engineering | — | (209) 992 1137 | Other | Clements · San Joaquin County | — | — |
| Glez Construction INC DBA Ag Finish Carpentry | Andres Gonzalez Nava | — | (209) 470 6358 | Other | Stockton · San Joaquin County | — | — |
| Glugo Electric | Gustavo Lugo Galeana | gus@glugoelectric.com | (408) 391 1266 | Electricians | Tracy · San Joaquin County | — | — |
| Gm Lath And Plastering LLC | Gustavo Lopez-Gomez | — | (209) 993 3482 | Other | Stockton · San Joaquin County | — | — |
| Gmat Painting | Gmat Painting | — | (209) 518 5070 | Windows, patio, painters | Stockton · San Joaquin County | — | — |
| Gmz Flooring INC | Juan Carlos Gomez Rios | — | (951) 399 5041 | Other | Stockton · San Joaquin County | — | — |
| Gn Plumbing | Gregory Francis Niemeyer | — | (209) 607 8220 | Other | Stockton · San Joaquin County | — | — |
| Gnc Painting | Gnc Painting | — | (209) 298 3836 | Windows, patio, painters | Tracy · San Joaquin County | — | — |