| Gorman Property Management | Gorman Property Management | — | (831) 649-3455 | Property managers | Pacific Grove · Monterey County | — | — |
| Gourley Construction INC | Matt Peter Gourley | — | (831) 594 8565 | GC, remodel, ADU | Soledad · Monterey County | — | — |
| Gp General Contractor | Gp General Contractor | — | (831) 776 2712 | GC, remodel, ADU | Castroville · Monterey County | — | — |
| Gr Pacific Construction | Gilberto Jr. Ruelas | — | (831) 760 0513 | GC, remodel, ADU | Seaside · Monterey County | — | — |
| Gr Plumbing | Gr Plumbing | — | (323) 899-4216 | Other | Marina · Monterey County | — | — |
| Grade Break Engineering INC | Johnny Alberto Jaramillo | — | (831) 272 5181 | Other | Salinas · Monterey County | — | — |
| Gradezer0 Andrade Earthworks INC | Alberto Andrade | — | (831) 901 1020 | Other | Salinas · Monterey County | — | — |
| Graham Electrical Corporation | Austin William Graham | — | (831) 251 7667 | Electricians | Monterey · Monterey County | — | — |
| Gramercy Construction | Mario Porter | — | (831) 264 7315 | GC, remodel, ADU | Pacific Grove · Monterey County | — | — |
| Grand Avenue Flooring & Interiors LLC | Sara Ann Pryer | — | (831) 372 0521 | Other | Pacific Grove · Monterey County | — | — |
| Grand Welcome Monterey Bay | Grand Welcome Monterey Bay | — | (831) 215-0780 | Property managers | Monterey · Monterey County | — | — |
| Granite Drilling Company | Mike Dean Grachek | kathy@granitedrilling.com | (831) 751 6300 | Other | Salinas · Monterey County | — | — |
| Granitebull Builders INC | Juan Fernando Vazquez Arvizu | — | (831) 884 6865 | GC, remodel, ADU | Salinas · Monterey County | — | — |
| Grant Construction & Design | Joseph Grant Headley | — | (831) 869 9123 | GC, remodel, ADU | Monterey · Monterey County | — | — |
| Graves Construction INC | Rodney Elton Jr Graves | — | (831) 917 6618 | Electricians | Monterey · Monterey County | — | — |
| Great Designs Landscaping | Great Designs Landscaping | — | (831) 809 2043 | Windows, patio, painters | Salinas · Monterey County | — | — |
| Green Canyon Landscaping INC | Cruz Daniel Cruz | — | (831) 747 7463 | Windows, patio, painters | Seaside · Monterey County | — | — |
| Green Construction | Jeffrey James Green | — | (831) 269 1377 | GC, remodel, ADU | Salinas · Monterey County | — | — |
| Green Diamond Landscaping | Green Diamond Landscaping | office@greendiamondlandscaping.com | (775) 762-8109 | Windows, patio, painters | Salinas · Monterey County | — | — |
| Green Engineering | Green Engineering | — | (831) 250 5008 | GC, remodel, ADU | Carmel · Monterey County | — | — |
| Green Lands Eco Solutions INC | Cordova Josue Diaz | — | (831) 915 1595 | Windows, patio, painters | Seaside · Monterey County | — | — |
| Green Line Landscape Service | Fernandez Fernando | — | (831) 682 6119 | Windows, patio, painters | Salinas · Monterey County | — | — |
| Green Valley Landscape INC | Mori Mitsugu | — | (831) 393 9100 | Windows, patio, painters | Seaside · Monterey County | — | — |
| Green Valley Pm Engineering | Marcos Pinedo-Mendoza | — | (831) 229 6368 | Other | Greenfield · Monterey County | — | — |
| Green View Landscaping INC | Ruiz Marciano Hernandez | — | (831) 276 1112 | Windows, patio, painters | Greenfield · Monterey County | — | — |
| Greenbuilding Science Company | John Stanfield Berg | — | (831) 915 9787 | GC, remodel, ADU | Carmel Valley · Monterey County | — | — |
| Greenridge Construction | Dexy Storm Gaudoin | — | (831) 737 0462 | GC, remodel, ADU | Carmel · Monterey County | — | — |
| Greenscape California INC | Paul David Otterbach | — | (831) 392 7099 | Windows, patio, painters | Carmel · Monterey County | — | — |
| Greg Cosmero Construction | Gregory Joseph Cosmero | — | (831) 915 3918 | GC, remodel, ADU | Del Rey Oaks · Monterey County | — | — |
| Greg Hufford Construction INC | Gregory Emerson Hufford | — | (831) 262 8791 | GC, remodel, ADU | Salinas · Monterey County | — | — |
| Greg Licari Construction Company | Gregory Morgan Licari | — | (408) 799 9201 | GC, remodel, ADU | Carmel · Monterey County | — | — |
| Greg Messerli Electric | Greg Paul Messerli | — | (831) 663 0990 | Electricians | Salinas · Monterey County | — | — |
| Gregg Burkman Electric | Gregg Douglas Burkman | — | (831) 262 1859 | Electricians | King City · Monterey County | — | — |
| Gregg Drilling & Testing INC | John Michael Gregg | — | (831) 633 2417 | Other | Moss Landing · Monterey County | — | — |
| Gregory D De Carli | Gregory D De Carli | — | (831) 206 4486 | GC, remodel, ADU | Gonzales · Monterey County | — | — |
| Grid Electric INC | Medgen Leighanne Aldrich | — | (831) 261 7489 | Electricians | Salinas · Monterey County | — | — |
| Griffin Electric | Stephan Lyle Griffin | service@griffinelectric.com | (831) 277 8688 | Electricians | Monterey · Monterey County | — | — |
| Grimm Construction Co | Floyd Ervin Grimm | — | (831) 761 3905 | GC, remodel, ADU | Salinas · Monterey County | — | — |
| Grit Roofing | Hector Uriel Munguia | — | (831) 202 7037 | Other roofers | Salinas · Monterey County | — | — |
| Grizzly Concrete Pumping INC | Elizabeth Veronica Jimenez | grizzlyconcrete@yahoo.com | (408) 658 4012 | Other | Salinas · Monterey County | — | — |