| G - Comm Tech INC | David Brian Youngwirth | — | (760) 644 0704 | Other | Temecula · Riverside County | — | — |
| G 2 Synthetics | Eduardo Arcadio Ruiz | — | (909) 561 9443 | GC, remodel, ADU | Mira Loma · Riverside County | — | — |
| G 3 Painting | G 3 Painting | — | (951) 515 3175 | Windows, patio, painters | Perris · Riverside County | — | — |
| G A Anderson Homes INC | Gary Ashly Anderson | — | (760) 409 1871 | GC, remodel, ADU | Desert Hot Springs · Riverside County | — | — |
| G A Chapman Construction Co | Glenn A Chapman | — | (760) 702 7333 | GC, remodel, ADU | La Quinta · Riverside County | — | — |
| G A Construction Services | Alfred Eugene Ii Augustine | — | (951) 371 3599 | GC, remodel, ADU | Corona · Riverside County | — | — |
| G A Painting | G A Painting | — | (949) 842 0113 | Windows, patio, painters | Lake Elsinore · Riverside County | — | — |
| G A Plumbing | G A Plumbing | — | (760) 605 5703 | Other | Coachella · Riverside County | — | — |
| G Alvarez Remodeling LLC | Gustavo Alvarez | — | (951) 545 8371 | GC, remodel, ADU | Homeland · Riverside County | — | — |
| G And R Landscaping INC | Odilon Garcia Carreon | — | (714) 855 0497 | Windows, patio, painters | Lake Elsinore · Riverside County | — | — |
| G B C Plumbing Company | Brian Royce Miller | — | (951) 582 0532 | Other | Norco · Riverside County | — | — |
| G B Electric | Greg Allen Burian | — | (951) 377 2244 | Electricians | Riverside · Riverside County | — | — |
| G B Plumbing | Alvarez Gerardo Barajas | — | (760) 622 8755 | Other | Lake Elsinore · Riverside County | — | — |
| G Brothers Tile Stone | Juan Pablo Gonzalez Jimenez | — | (760) 668 2763 | Other | Cathedral City · Riverside County | — | — |
| G Buenos Construction INC | George Dela Cruz Bueno | — | (714) 713 1721 | GC, remodel, ADU | Corona · Riverside County | — | — |
| G C Demo INC | Juan Carlos Gastelum | — | (760) 449 2056 | GC, remodel, ADU | Palm Desert · Riverside County | — | — |
| G C Electrical Service INC | Martin Gilberto Macias Carrillo | — | (951) 880 8225 | Electricians | Jurupa Valley · Riverside County | — | — |
| G C S Construction | Greg Charles Swain | — | (714) 292 9974 | GC, remodel, ADU | Idyllwild · Riverside County | — | — |
| G D F Industries LLC | Gery Kevin Ficke | — | (951) 440 5722 | GC, remodel, ADU | Norco · Riverside County | — | — |
| G D Williams Construction | Gregory Dennis Williams | — | (951) 893 8998 | GC, remodel, ADU | Corona · Riverside County | — | — |
| G E D Builders INC | Elias Jean Alfata | — | (951) 454 0912 | GC, remodel, ADU | Riverside · Riverside County | — | — |
| G G O Cabinets | G G O Cabinets | — | (714) 336 8328 | Other | Norco · Riverside County | — | — |
| G H A Enterprises INC | Mario Joseph Gonzales | — | (760) 969 1400 | GC, remodel, ADU | Cathedral City · Riverside County | — | — |
| G H Pool Construction | Earl Malcolm Haltman | — | (760) 328 7515 | Pool | Cathedral City · Riverside County | — | — |
| G I Masonry | G I Masonry | — | (951) 226 8331 | Other | Wildomar · Riverside County | — | — |
| G J Construction Company | Gilberto Sr Juarez | — | (909) 224 3216 | GC, remodel, ADU | Banning · Riverside County | — | — |
| G J H Development INC | Gregory James Herington | — | (760) 578 3545 | GC, remodel, ADU | Temecula · Riverside County | — | — |
| G J M Pools | Gregory Jon Miller | — | (760) 899 7540 | Pool | Bermuda Dunes · Riverside County | — | — |
| G L Cagle Construction | Greg Lee Cagle | — | (951) 461 7914 | Other | Murrieta · Riverside County | — | — |
| G L Cooper Custom Millwork | G L Cooper Custom Millwork | — | (951) 775 7806 | Other | Temecula · Riverside County | — | — |
| G L Gayler Construction INC | George Larry Gayler | — | (760) 399 5308 | Other | Thermal · Riverside County | — | — |
| G L Plumbing And Mechanical | G L Plumbing And Mechanical | — | (951) 314 0639 | Other | Perris · Riverside County | — | — |
| G L S Landscaping | Carmen Veronica Gutierrez | — | (760) 329 7207 | Windows, patio, painters | Cathedral City · Riverside County | — | — |
| G L Scrivens Construction INC | Gregory Lynn Scrivens | — | (760) 831 7439 | GC, remodel, ADU | Palm Desert · Riverside County | — | — |
| G M Air-air Conditioning & Heating INC | Charles Bruce Jr Powers | — | (760) 346 9425 | HVAC | Rancho Mirage · Riverside County | — | — |
| G M C Electrical | Gary Lloyd Matlack | — | (951) 634 9021 | Electricians | Corona · Riverside County | — | — |
| G M C Electrical INC | Gary Lloyd Ii Matlack | — | (909) 947 6016 | Electricians | Corona · Riverside County | — | — |
| G M Fox Turnkey Property Maintenance | Gary Michael Fox | — | (760) 534 8345 | GC, remodel, ADU | Cathedral City · Riverside County | — | — |
| G M Gordon Roofing | George Mcintyre Iii Gordon | — | (760) 565 7006 | Other roofers | Bermuda Dunes · Riverside County | — | — |
| G M Plumbing & Drain Services | Mendez Gabriel | — | (951) 972 7897 | Other | Homeland · Riverside County | — | — |