| Green View Tree Service | Paez Reyes Alvaro | — | (909) 436 6628 | Tree | Chino · San Bernardino County | — | — |
| Green Vision Glass LLC | Lance Steven-Blake Lafond | — | (760) 662 6388 | Windows, patio, painters | Wrightwood · San Bernardino County | — | — |
| Green Wire Electric INC | Marcus Joseph Jennings | — | (909) 534 5761 | Electricians | Yucaipa · San Bernardino County | — | — |
| Green X Turf Artificial Grass | Cortez Veronica Morales | — | (909) 994 7097 | Other | Rancho Cucamonga · San Bernardino County | — | — |
| Green Zone Experts | Green Zone Experts | — | (909) 329 1000 | HVAC | Victorville · San Bernardino County | — | — |
| Greenbrier | Miguel Angel Chavez | — | (909) 427 8013 | GC, remodel, ADU | Fontana · San Bernardino County | — | — |
| Greencore Landscape INC | Raul Lara | — | (909) 521 6080 | Windows, patio, painters | San Bernardino · San Bernardino County | — | — |
| Greenland Construction | Liu Huixian | — | (909) 455 4700 | GC, remodel, ADU | Rancho Cucamonga · San Bernardino County | — | — |
| Greenland Landscape & Maintenance INC | Jaime Preciado Vasquez | — | (909) 984 3500 | GC, remodel, ADU | Chino · San Bernardino County | — | — |
| Greenlane | Greenlane | — | (855) 378-4756 | EV chargers | Colton · San Bernardino County | — | — |
| Greenlee Communications | Greenlee Communications | — | (760) 957 5332 | Other | Barstow · San Bernardino County | — | — |
| Greenscape Maintenance Services INC | Han Han | — | (909) 984 6733 | Windows, patio, painters | Upland · San Bernardino County | — | — |
| Greenstone Services INC | Adam Ward | — | (909) 496 8819 | Windows, patio, painters | Pinon Hills · San Bernardino County | — | — |
| Greenthumb | Miguel Alberto Taico | — | (626) 485 0116 | Windows, patio, painters | Upland · San Bernardino County | — | — |
| Greg Allen Bard | Greg Allen Bard | — | (909) 239 8323 | Other | Chino Hills · San Bernardino County | — | — |
| Greg Brasher Custom Wood Painting | Greg Brasher Custom Wood Painting | — | (909) 585 1017 | Windows, patio, painters | Big Bear Lake · San Bernardino County | — | — |
| Greg Duffy Construction | Gregory Alan Duffy | — | (760) 475 3208 | GC, remodel, ADU | Oak Hills · San Bernardino County | — | — |
| Greg Gardner | Greg Gardner | — | (909) 360 2429 | Other | Mt Baldy · San Bernardino County | — | — |
| Greg J Meade General Contractor | Greg J Meade General Contractor | — | (805) 540 8313 | GC, remodel, ADU | Joshua Tree · San Bernardino County | — | — |
| Greg Johnson Plumbing | Greg Johnson Plumbing | — | (310) 968 5825 | Other | Montclair · San Bernardino County | — | — |
| Greg Patterson Construction | Greg Jan Patterson | — | (951) 323 0213 | GC, remodel, ADU | Morongo Valley · San Bernardino County | — | — |
| Greg Summerville Floors | Greg Summerville Floors | — | (909) 647 8577 | GC, remodel, ADU | Twin Peaks · San Bernardino County | — | — |
| Greg Wilkinson Construction | Gregory Albert Wilkinson | — | (909) 838 9836 | GC, remodel, ADU | Big Bear City · San Bernardino County | — | — |
| Greg's Custom Woodworks | Greg's Custom Woodworks | — | (909) 731 6681 | Other | Rancho Cucamonga · San Bernardino County | — | — |
| Greg's Paint | Hernandez Gregory Lopez | — | (909) 991 2346 | Windows, patio, painters | San Bernardino · San Bernardino County | — | — |
| Gregco Painting INC | Paul Fredrick Gregory | — | (909) 319 8239 | Windows, patio, painters | Rancho Cucamonga · San Bernardino County | — | — |
| Gregg Electric INC | Cynthia Fehlman Parlier | — | (909) 983 1794 | Electricians | Ontario · San Bernardino County | — | — |
| Gregg Knapp Construction LLC | Greggory Scott Knapp | — | (909) 855 5498 | GC, remodel, ADU | Big Bear Lake · San Bernardino County | — | — |
| Gregg S Lord | Gregg S Lord | — | (909) 946 6729 | GC, remodel, ADU | Upland · San Bernardino County | — | — |
| Gregg's Construction | Gregory Wayne Lint | — | (760) 953 1869 | GC, remodel, ADU | Barstow · San Bernardino County | — | — |
| Gregory Alan Haydel | Gregory Alan Haydel | — | (213) 718 0662 | Other | Ontario · San Bernardino County | — | — |
| Gregory Albert Eargle | Gregory Albert Eargle | — | (760) 247 3751 | Other | Apple Valley · San Bernardino County | — | — |
| Gregory Bryce Lamb | Gregory Bryce Lamb | — | (909) 855 1378 | Other | Redlands · San Bernardino County | — | — |
| Gregory Gail Schick | Gregory Gail Schick | — | (951) 314 6435 | GC, remodel, ADU | Big Bear Lake · San Bernardino County | — | — |
| Gregory John Parker | Gregory John Parker | — | (909) 568 5944 | GC, remodel, ADU | Crestline · San Bernardino County | — | — |
| Gregory Lewis | Gregory Lewis | — | (909) 322 9236 | Other | Fontana · San Bernardino County | — | — |
| Gregory R Renn | Gregory R Renn | — | (760) 559 1125 | GC, remodel, ADU | Apple Valley · San Bernardino County | — | — |
| Gregory Schweitzer Construction Company | Gregory Alan Schweitzer | — | (909) 981 2050 | GC, remodel, ADU | Upland · San Bernardino County | — | — |
| Grg Pool & Spa INC | Gary Robert Grommes | — | (909) 606 6042 | Pool | Chino Hills · San Bernardino County | — | — |
| Grid Line Drywall | Luis Alfredo Jr Avila | — | (909) 231 9466 | Other | Fontana · San Bernardino County | — | — |