| Gary Walter | Gary Walter | — | (805) 440 0118 | Windows, patio, painters | San Luis Obispo · San Luis Obispo County | — | — |
| Geiger Construction | Joseph Lloyd Geiger | — | (661) 998 0016 | GC, remodel, ADU | Nipomo · San Luis Obispo County | — | — |
| Gelos Construction | Nathan Andreas Gelos | — | (805) 238 1520 | GC, remodel, ADU | Paso Robles · San Luis Obispo County | — | — |
| Gemini Framing | Robert King Ellis | — | (805) 431 0758 | GC, remodel, ADU | Cambria · San Luis Obispo County | — | — |
| Generations Electric LLC | Daniel Lelin Gowdy | — | (805) 459 2376 | Electricians | San Luis Obispo · San Luis Obispo County | — | — |
| Generations Of Electrical Service INC | Michael Allen Schmidt | — | (805) 801 1495 | Electricians | Arroyo Grande · San Luis Obispo County | — | — |
| Geofusion Construction Company | Darin Richard Kruse | — | (818) 903 6193 | GC, remodel, ADU | Pismo Beach · San Luis Obispo County | — | — |
| Geosolutions INC | Jeffrey Alan Pfost | — | (805) 543 8539 | Other | San Luis Obispo · San Luis Obispo County | — | — |
| Gerry K Grotenhuis | Gerry K Grotenhuis | — | (714) 342 0404 | GC, remodel, ADU | Los Osos · San Luis Obispo County | — | — |
| Gibbie Electric Service | Bryan Craig Gibbons | — | (805) 878 6634 | Electricians | Nipomo · San Luis Obispo County | — | — |
| Gibson Electrical Solutions | Eric Stephen Gibson | — | (805) 574 3010 | Electricians | Arroyo Grande · San Luis Obispo County | — | — |
| Gibson Tile | Gibson Tile | — | (805) 459 9827 | Other | Nipomo · San Luis Obispo County | — | — |
| Giddyup Elevator | Giddyup Elevator | — | (805) 400-0478 | Other | Grover Beach · San Luis Obispo County | — | — |
| Gierlich-mitchell INC | Candace Amdersem | info@gierlich-mitchell.com | (714) 236 6070 | Other | Paso Robles · San Luis Obispo County | — | — |
| Gilbert's Landscape | Gilbert's Landscape | — | (805) 461 3375 | Windows, patio, painters | Atascadero · San Luis Obispo County | — | — |
| Gillespie Plumbing | Gillespie Plumbing | — | (805) 459 2022 | Other | San Luis Obispo · San Luis Obispo County | — | — |
| Giovanni Contaldo | Giovanni Contaldo | — | (310) 562 3698 | GC, remodel, ADU | Atascadero · San Luis Obispo County | — | — |
| Glen Mathias Jackson | Glen Mathias Jackson | — | (310) 804 5401 | GC, remodel, ADU | Paso Robles · San Luis Obispo County | — | — |
| Glenex Construction | Don Gale Rose | — | (805) 207 3717 | Other | Paso Robles · San Luis Obispo County | — | — |
| Glenn Chavez Construction | Glenn Darrin Chavez | — | (714) 308 3879 | GC, remodel, ADU | San Miguel · San Luis Obispo County | — | — |
| Glenn Paris Flooring | Glenn Paris Flooring | — | (805) 434 8659 | Other | Templeton · San Luis Obispo County | — | — |
| Gmz Builders INC | Silvestre Gutierrez Gomez | — | (408) 607 3822 | GC, remodel, ADU | Pismo Beach · San Luis Obispo County | — | — |
| Gng Plumbing Solutions | Gng Plumbing Solutions | — | (408) 607 3822 | Other | Grover Beach · San Luis Obispo County | — | — |
| Go-to Plumbing INC | Kyle Blain Baker | — | (805) 434 7096 | Other | Templeton · San Luis Obispo County | — | — |
| Goat Construction INC | Francisco Magallon | — | (805) 310 2421 | GC, remodel, ADU | Nipomo · San Luis Obispo County | — | — |
| Godoy | Javier Vargas Godoy | — | (805) 835 6081 | Other roofers | Paso Robles · San Luis Obispo County | — | — |
| Golden Bay Mechanical Services INC | Michael Steven Atiles | — | (805) 481 1911 | HVAC | Pismo Beach · San Luis Obispo County | — | — |
| Golden Coast Construction | Bryan Thomas Kelly-holden | — | (323) 614 5195 | GC, remodel, ADU | Nipomo · San Luis Obispo County | — | — |
| Golden State Paving & Maintenance | Gary Fredrick Riekki | — | (805) 473 3588 | Other | Arroyo Grande · San Luis Obispo County | — | — |
| Golden State Plumber | Golden State Plumber | — | (805) 995 0360 | Other | Cayucos · San Luis Obispo County | — | — |
| Golden State Tree Service | Jesus Rosales Morales | goldenstatetreeservice@gmail.com | (805) 835 1013 | Tree | Paso Robles · San Luis Obispo County | — | — |
| Golden Tile Company | Phillip Alexander Betita | — | (805) 657 8663 | Other | Arroyo Grande · San Luis Obispo County | — | — |
| Golden West Builders INC | Tyson Randal Davis | — | (805) 434 5543 | GC, remodel, ADU | Templeton · San Luis Obispo County | — | — |
| Golding Concrete Sawing | Golding Concrete Sawing | — | (805) 461 3507 | Other | Atascadero · San Luis Obispo County | — | — |
| Goldman Electric | Benjamin Paul Goldman | — | (805) 748 7939 | Electricians | Templeton · San Luis Obispo County | — | — |
| Goldsmith Mechanical INC | Joshua Euel Goldsmith | — | (805) 610 5327 | HVAC | Paso Robles · San Luis Obispo County | — | — |
| Gomes Building Specialties | Gomes Building Specialties | — | (805) 550 9626 | GC, remodel, ADU | Morro Bay · San Luis Obispo County | — | — |
| Gonzales Electric | Pete Victor Gonzales | — | (805) 207 1656 | Electricians | Paso Robles · San Luis Obispo County | — | — |
| Gonzalez Multi - Masonry Contractor | Gonzalez Multi - Masonry Contractor | — | (805) 924 1020 | Other | Cambria · San Luis Obispo County | — | — |
| Good Energy & Eco Solutions | Good Energy & Eco Solutions | — | (805) 704 1803 | Electricians | Arroyo Grande · San Luis Obispo County | — | — |