| Gateway Contracting | Corey Douglas Fisher | — | (707) 768 9101 | GC, remodel, ADU | Hydesville · Humboldt County | — | — |
| Ge & Company | Gary Marvin Elmore | — | (707) 498 6510 | Other | Hydesville · Humboldt County | — | — |
| Genevieve Schmidt | Genevieve Schmidt | — | (707) 822 2075 | Windows, patio, painters | Mc Kinleyville · Humboldt County | — | — |
| George C Jacobs Company Of Eureka | Kelley Yvonne Montana | — | (707) 442 5912 | Other | Fields Landing · Humboldt County | — | — |
| George Corsetti | George Corsetti | — | (707) 845 6767 | GC, remodel, ADU | Eureka · Humboldt County | — | — |
| George J Kurwitz | George J Kurwitz | — | (707) 499 4707 | GC, remodel, ADU | Eureka · Humboldt County | — | — |
| George Pearlingi Carpenter | George Pearlingi Carpenter | — | (707) 834 5830 | Other | Orleans · Humboldt County | — | — |
| George Young Construction | George Stanley Young | — | (707) 764 5053 | GC, remodel, ADU | Rio Dell · Humboldt County | — | — |
| Gerbic Group LLC | Jeffrey Paul Gerbic | — | (530) 514 0686 | GC, remodel, ADU | Eureka · Humboldt County | — | — |
| Gess Construction | Jerry J Gess | — | (707) 496 9863 | GC, remodel, ADU | Hydesville · Humboldt County | — | — |
| Giacone Painting | Giacone Painting | — | (707) 616 7211 | Windows, patio, painters | Eureka · Humboldt County | — | — |
| Giovanoli Construction | Reto Antonio Giovanoli | — | (707) 498 9206 | GC, remodel, ADU | Eureka · Humboldt County | — | — |
| Gladden Construction | Alfred Delbert Gladden | — | (707) 725 2600 | GC, remodel, ADU | Fortuna · Humboldt County | — | — |
| Gold Coast Flood Restorations | Gold Coast Flood Restorations | info@goldcoastflood.com | (619) 449-9611 | Restoration | Santee · Humboldt County | — | — |
| Goodin Construction | Gary John Goodin | — | (707) 502 5907 | GC, remodel, ADU | Mc Kinleyville · Humboldt County | — | — |
| Goodman Construction | Nathan Isadore Goodman | ian@goodmanconstruction.com | (707) 499 5503 | GC, remodel, ADU | Eureka · Humboldt County | — | — |
| Gosselin Construction Company | Travis Paul Gosselin | — | (707) 616 3376 | GC, remodel, ADU | Mc Kinleyville · Humboldt County | — | — |
| Gower Water Works LLC | Mark Jason Gower | — | (707) 502 6222 | Other | Eureka · Humboldt County | — | — |
| Gps Construction INC | Thomas Wayne Horn | — | (707) 499 0624 | GC, remodel, ADU | Arcata · Humboldt County | — | — |
| Grandfield Construction | Dana Kelly Grandfield | — | (707) 499 7826 | GC, remodel, ADU | Arcata · Humboldt County | — | — |
| Great Gardens Landscape | Great Gardens Landscape | — | (707) 845 3898 | Windows, patio, painters | Mc Kinleyville · Humboldt County | — | — |
| Green Line Construction | Ryan Joseph Henderson | — | (707) 772 7131 | GC, remodel, ADU | Arcata · Humboldt County | — | — |
| Green Man Builders | Green Man Builders | kyle@greenmanbuilders.com | (707) 223 4032 | GC, remodel, ADU | Arcata · Humboldt County | — | — |
| Green Town Builders | Green Town Builders | — | (707) 845 5374 | GC, remodel, ADU | Mc Kinleyville · Humboldt County | — | — |
| Greenbelt Electrical | Greenbelt Electrical | — | (707) 476-3720 | Electricians | Eureka · Humboldt County | — | — |
| Greenway Drain Cleaning & Plumbing | Greenway Drain Cleaning & Plumbing | — | (707) 599 1033 | Other | Eureka · Humboldt County | — | — |
| Greenwired INC | Joshua Lane Miller | — | (707) 923 2001 | HVAC | Redway · Humboldt County | — | — |
| Greg Lysander Drywall | Greg Lysander Drywall | — | (858) 204 0035 | Other | Samoa · Humboldt County | — | — |
| Gregory Mc Knight Masonry | Gregory Mc Knight Masonry | — | (707) 845 1827 | Other | Bayside · Humboldt County | — | — |
| Griffin's Budget Drywall | Griffin's Budget Drywall | — | (707) 267 5741 | Other | Mc Kinleyville · Humboldt County | — | — |
| Griffith Fencing | Griffith Fencing | — | (707) 834 7994 | Other | Rio Dell · Humboldt County | — | — |
| Griggs Construction | Timothy David Griggs | — | (707) 599 4639 | GC, remodel, ADU | Ferndale · Humboldt County | — | — |
| Grinsell Construction | Timothy Joseph Grinsell | — | (707) 498 1111 | GC, remodel, ADU | Ferndale · Humboldt County | — | — |
| Groeling Yonts And Associates | James Allen Groeling | — | (707) 599 4549 | GC, remodel, ADU | Arcata · Humboldt County | — | — |
| Grooms Construction INC | Adam Jackson Grooms | groomsconstruction707@gmail.com | (707) 496 1271 | GC, remodel, ADU | Mc Kinleyville · Humboldt County | — | — |
| Grounded Energy Electric | David Gordon Rodriguez | drodriguez@groundedenergyelectric.com | (707) 267-0741 | Electricians | Mc Kinleyville · Humboldt County | — | — |
| Grounds Keeper | Grounds Keeper | — | (707) 499 5035 | Windows, patio, painters | Mc Kinleyville · Humboldt County | — | — |
| Grs Wahlund Jv | Construction INC Wahlund | — | (707) 268 0150 | Other | Eureka · Humboldt County | — | — |
| Guerrero Concrete Creations 01 | Guerrero Concrete Creations 01 | — | (707) 616 4279 | Other | Eureka · Humboldt County | — | — |
| Gunter Kison Cabinetry | Gunter Kison Cabinetry | — | (707) 444 2707 | Other | Eureka · Humboldt County | — | — |