| Goose Welding | Alvaro Jaime Gouzy | — | (951) 809 0551 | Other | Riverside · Riverside County | — | — |
| Gordon Directional Boring INC | Sarah Elizabeth Gordon | — | (805) 234 6055 | Other | Murrieta · Riverside County | — | — |
| Gordon Ward Junior | Gordon Ward Junior | — | (951) 858 1509 | Windows, patio, painters | Riverside · Riverside County | — | — |
| Gorham Stairs | Gorham Stairs | — | (951) 541 4573 | Other | Winchester · Riverside County | — | — |
| Gorilla Landscaping | Gorilla Landscaping | — | (760) 595 4796 | Windows, patio, painters | Wildomar · Riverside County | — | — |
| Gorilla Tubs Refinishing | Gorilla Tubs Refinishing | — | (760) 851 2823 | Other | Indio · Riverside County | — | — |
| Gorrocino Roofing INC | Fernando Gorrocino | info@gorrocinoroofing.com | (951) 322 8760 | Other roofers | Perris · Riverside County | — | — |
| Gorton's Heating & Air Conditioning | Gorton's Heating & Air Conditioning | — | (950) 941 5062 | HVAC | Beaumont · Riverside County | — | — |
| Got Voltz? INC | Luis Alfonso Mora | — | (760) 778 1710 | Electricians | Cathedral City · Riverside County | — | — |
| Gotcha Covered Heating And Air INC | Anthony Ace Ramos | — | (760) 289 1264 | HVAC | Coachella · Riverside County | — | — |
| Gotpower Electric LLC | Michael Mark Waite | — | (909) 848 3941 | Electricians | Beaumont · Riverside County | — | — |
| Gottfeld Construction | Don David Gottfeld | — | (310) 709 4546 | GC, remodel, ADU | Temecula · Riverside County | — | — |
| Gottschalk Construction INC | Garrett Thomas Gottschalk | — | (714) 271 0518 | Electricians | Temecula · Riverside County | — | — |
| Gov Next Level Pro Painting | Martin Feliciano Gonzalez | — | (951) 518 5444 | Windows, patio, painters | Riverside · Riverside County | — | — |
| Gove Contracting | Richard Wallace Gove | — | (951) 538 5346 | Other | Riverside · Riverside County | — | — |
| Gow's Custom Tile Co | Sean Patrick Sr Gow | — | (951) 225 2866 | Other | Hemet · Riverside County | — | — |
| Goyo's Painting Corp | Maria Guadalupe Rodriguez | — | (951) 809 2069 | Windows, patio, painters | Riverside · Riverside County | — | — |
| Gp Telecom Services DBA Gp Construction Services | Timothy Steven Whitcomb | — | (619) 277 4528 | Electricians | Nuevo · Riverside County | — | — |
| Gpa Doors & Windows INC | Gerald Paul Anker | — | (951) 371 8278 | GC, remodel, ADU | Corona · Riverside County | — | — |
| Gpr Construction INC | Gerardo Abad Pareja | — | (714) 624 5057 | GC, remodel, ADU | Riverside · Riverside County | — | — |
| Gr Paving Solutions | Gr Paving Solutions | — | (626) 827 1729 | Other | Murrieta · Riverside County | — | — |
| Grace Painting | Kil Soo Hwang | — | (951) 653 3909 | Windows, patio, painters | Riverside · Riverside County | — | — |
| Grade A Painting Corp | Efren Aviles | — | (909) 522 9723 | Windows, patio, painters | Moreno Valley · Riverside County | — | — |
| Gradford Construction | Tamid Johanan Gradford | preconstruction@gradfordconstruction.com | (951) 497 8350 | GC, remodel, ADU | Moreno Valley · Riverside County | — | — |
| Grafflin Construction INC | Jessica Rae Grafflin | — | (951) 479 5633 | GC, remodel, ADU | Norco · Riverside County | — | — |
| Graham Construction | John Mark Graham | — | (951) 816 7735 | GC, remodel, ADU | Temecula · Riverside County | — | — |
| Graham Crackers-demo INC | Raymond Paul Graham | — | (951) 244 2235 | Other | Menifee · Riverside County | — | — |
| Graham Electric INC | Matthew Raymond Graham | — | (562) 416 4025 | Electricians | Canyon Lake · Riverside County | — | — |
| Grajeda Construction Co | Grajeda-contreras Jaime | — | (760) 715 3398 | GC, remodel, ADU | Temecula · Riverside County | — | — |
| Gramm Electric | Robert Adam Gramm | — | (916) 599 8986 | Electricians | Cathedral City · Riverside County | — | — |
| Grammatico R INC | Giovanni William Grammatico | — | (951) 970 0092 | GC, remodel, ADU | Murrieta · Riverside County | — | — |
| Grand American Builders | Adrian Dennis Chatigny | — | (951) 533 6241 | GC, remodel, ADU | Beaumont · Riverside County | — | — |
| Grand Haven Construction | Kosciolek Frank | — | (760) 703 7606 | GC, remodel, ADU | Indio · Riverside County | — | — |
| Grand Lion Construction INC | John Christopher Krieg | — | (760) 289 2505 | GC, remodel, ADU | Coachella · Riverside County | — | — |
| Grand Mark Landscape INC | Edward Bryan Ii Beaumont | — | (760) 409 7879 | Windows, patio, painters | Palm Desert · Riverside County | — | — |
| Grand Prix Grading | Grand Prix Grading | — | (951) 453 1370 | Other | Murrieta · Riverside County | — | — |
| Granite Creek Pools & Spas INC | Dean Russell Barker | — | (951) 677 9494 | Pool | Temecula · Riverside County | — | — |
| Granite Creek Pools And Spas | Granite Creek Pools And Spas | dean@granitecreeksocal.com | (844) 497-6657 | Pool | Temecula · Riverside County | — | — |
| Grant Air Conditioning | Grant Air Conditioning | — | (601) 819 0010 | HVAC | Palm Desert · Riverside County | — | — |
| Grant Yecoshenko Tile Work | Grant Yecoshenko Tile Work | — | (951) 712 3434 | Other | Temecula · Riverside County | — | — |