| Gutter Done | Gutter Done | — | (951) 526 9101 | Other | Winchester · Riverside County | — | — |
| Guy Construction | Aaron Daniel Guy | — | (760) 902 7445 | GC, remodel, ADU | Rancho Mirage · Riverside County | — | — |
| Guy Trisler / Floor Work Designs | Guy Thomas Trisler | — | (951) 303 2000 | Other | Murrieta · Riverside County | — | — |
| Guy Vergiels Construction | Guy Roland Vergiels | — | (951) 314 0925 | GC, remodel, ADU | Corona · Riverside County | — | — |
| Guy Yocom Construction INC | Greg Edmond Wilson | — | (951) 284 3456 | GC, remodel, ADU | Norco · Riverside County | — | — |
| Guyco Construction INC | Guy Thomas Elman | — | (951) 830 2298 | GC, remodel, ADU | Corona · Riverside County | — | — |
| Guyou Construction INC | Marcus Anthony Gayou | info@guyouconstruction.com | (866) 464 8968 | Other roofers | Riverside · Riverside County | — | — |
| Guzman Drywall INC | Jaime Ariel Guzman Ramos | — | (951) 522 9945 | Other | Beaumont · Riverside County | — | — |
| Guzman Paving Corp | Cergio Alberto Guzman Gonzalez | — | (951) 488 4106 | Other | Homeland · Riverside County | — | — |
| Guzman Plastering | Guzman Plastering | — | (951) 743 4324 | Other | Moreno Valley · Riverside County | — | — |
| Guzman Plumbing | Guzman Plumbing | — | (626) 624 7744 | Other | Hemet · Riverside County | — | — |
| Gv Concrete Specialties | Gv Concrete Specialties | — | (951) 462 6611 | Other | Norco · Riverside County | — | — |
| Gv Enterprise | Gv Enterprise | — | (951) 907 0904 | Other | Winchester · Riverside County | — | — |
| Gv Garage Doors | Gv Garage Doors | — | (818) 527 3342 | Other | Moreno Valley · Riverside County | — | — |
| Gv Painting | Gv Painting | — | (626) 391 6957 | Windows, patio, painters | Perris · Riverside County | — | — |
| Gvb Electric INC | Jose Jr Martinez | — | (951) 378 7248 | Electricians | Cabazon · Riverside County | — | — |
| Gw Construction Service | Gary Michael Wiegert | — | (909) 360 6454 | GC, remodel, ADU | Riverside · Riverside County | — | — |
| Gwd Innovations | Gwd Innovations | contact@sansoxygen.com | (909) 519 2350 | GC, remodel, ADU | Riverside · Riverside County | — | — |
| Gww Development | Aaron Rainbow Minkin | goodwithwoodla@yahoo.com | (951) 659 0108 | GC, remodel, ADU | Idyllwild · Riverside County | — | — |
| Gzv Construction INC | Gabriel Velasco Zavala | — | (951) 491 4388 | GC, remodel, ADU | Hemet · Riverside County | — | — |
| Gzv Set Up LLC | Gabriel Velasco Zavala | — | (951) 491 4388 | GC, remodel, ADU | Hemet · Riverside County | — | — |
| H & E Floor Prep And Removal INC | Martinez Huber | — | (951) 445 7779 | Other | Perris · Riverside County | — | — |
| H & G Home Improvements INC | Higuera Horacio Flores | — | (760) 902 6584 | GC, remodel, ADU | Indio · Riverside County | — | — |
| H & H Ceramic Tile | H & H Ceramic Tile | — | (714) 728 8698 | Other | Corona · Riverside County | — | — |
| H & H Fence Construction | David Wayne Hargett | — | (951) 296 1677 | Other | Winchester · Riverside County | — | — |
| H & M Fencing INC | Frank Edward Bloomquist | — | (951) 571 0296 | GC, remodel, ADU | Moreno Valley · Riverside County | — | — |
| H & M Plastering And Repair | Alvarado Harvey | — | (951) 343 9111 | Other | Riverside · Riverside County | — | — |
| H & R Refrigeration | H & R Refrigeration | — | (619) 274 9496 | HVAC | Menifee · Riverside County | — | — |
| H A C Construction | Henry Anthony Cantu | — | (951) 654 1528 | GC, remodel, ADU | San Jacinto · Riverside County | — | — |
| H C C Holguin Construction Company | Ruben Alonso Holguin | — | (760) 595 1092 | GC, remodel, ADU | Indio · Riverside County | — | — |
| H D Construction | Hal Douglas Mauldin | — | (951) 675 6254 | GC, remodel, ADU | Corona · Riverside County | — | — |
| H D Pools Services | Ricky Angelo Iacovino | — | (760) 799 6244 | Pool | Palm Desert · Riverside County | — | — |
| H F Builders Co INC | Joshua Michael Herrick | — | (951) 234 0356 | GC, remodel, ADU | Temecula · Riverside County | — | — |
| H Hurtado Engineering INC | Hubaldo Hurtado | — | (951) 219 5473 | Other | Nuevo · Riverside County | — | — |
| H I S Electrical Services | John Willie Jr Roberts | — | (661) 974 1916 | Electricians | Lake Elsinore · Riverside County | — | — |
| H J Daniels Overhead Door | Hubert Josef Daniels | — | (951) 374 3705 | Other | Mountain Center · Riverside County | — | — |
| H J H Construction INC | Harold Jonathon Hall | — | (760) 324 0065 | GC, remodel, ADU | Cathedral City · Riverside County | — | — |
| H J R Flooring | H J R Flooring | — | (951) 775 5000 | Other | Mira Loma · Riverside County | — | — |
| H L B Tile & Stone | Howard Lee Baty | — | (951) 538 0024 | Other | Beaumont · Riverside County | — | — |
| H L Builders | Oscar Dorado Quezada | — | (626) 533 6454 | GC, remodel, ADU | Corona · Riverside County | — | — |