| Ed West Construction | Edwin James West | — | (530) 510 3624 | GC, remodel, ADU | Willow Creek · Humboldt County | — | — |
| Edwards Excavation & Restoration | Logan Rain Conway Edwards | — | (707) 834 4946 | Restoration | Garberville · Humboldt County | — | — |
| Eee INC | Jeffery Michael Trirogoff | — | (805) 231 0822 | Electricians | Mc Kinleyville · Humboldt County | — | — |
| Eel Valley Construction | Arne Robert Wayne Petersen | — | (916) 812 7031 | GC, remodel, ADU | Ferndale · Humboldt County | — | — |
| Eichelberger Enterprises | Robert Michael Eichelberger | — | (707) 845 6462 | GC, remodel, ADU | Willow Creek · Humboldt County | — | — |
| Eichert Building | Eichert Building | — | (707) 599 0964 | GC, remodel, ADU | Mc Kinleyville · Humboldt County | — | — |
| Eldridge Construction | Cody Lee Eldridge | — | (707) 223 1983 | GC, remodel, ADU | Garberville · Humboldt County | — | — |
| Elite Drywall | Elite Drywall | — | (707) 599 4469 | Other | Eureka · Humboldt County | — | — |
| Elite Restoration Services | Elite Restoration Services | — | (858) 290-5383 | Restoration | Escondido · Humboldt County | — | — |
| Elk Ridge Landscaping | William Thomas Grover | — | (707) 223 1910 | Windows, patio, painters | Mc Kinleyville · Humboldt County | — | — |
| Ellena Construction | Anthony Leon Ellena | — | (707) 499 0545 | GC, remodel, ADU | Mc Kinleyville · Humboldt County | — | — |
| Elway Construction | Dustin Ryan Elway | — | (707) 601 1350 | GC, remodel, ADU | Rio Dell · Humboldt County | — | — |
| Emerald Electric INC | Matthew Craig Bronson | — | (707) 831 0081 | Electricians | Mc Kinleyville · Humboldt County | — | — |
| Emergent Danco Builders Northwest Jv | Builders Northwest Danco | — | (707) 822 9000 | GC, remodel, ADU | Arcata · Humboldt County | — | — |
| Encore Enterprises | Ranario Noel | — | (707) 498 8831 | GC, remodel, ADU | Eureka · Humboldt County | — | — |
| Epperly Construction | John Douglas Epperly | — | (707) 498 0715 | GC, remodel, ADU | Arcata · Humboldt County | — | — |
| Equity Building And Development | Bo Jangles Day | — | (707) 496 3095 | GC, remodel, ADU | Mc Kinleyville · Humboldt County | — | — |
| Eric Petersen Construction | Eric Nathan Petersen | — | (707) 839 4284 | GC, remodel, ADU | Mc Kinleyville · Humboldt County | — | — |
| Eric's Home Services | Eric Alan Wiesner | ericwiesner@outlook.com | (707) 499 4828 | GC, remodel, ADU | Mc Kinleyville · Humboldt County | — | — |
| Erik Jackson Painting | Erik Jackson Painting | — | (707) 834 3157 | Windows, patio, painters | Eureka · Humboldt County | — | — |
| Ernst P&b | Ernst P&b | — | (707) 917 1320 | GC, remodel, ADU | Ferndale · Humboldt County | — | — |
| Eugene Anthony Skweir | Eugene Anthony Skweir | — | (707) 497 4160 | GC, remodel, ADU | Mc Kinleyville · Humboldt County | — | — |
| Eureka Car Stereo | Eureka Car Stereo | — | (707) 445-3283 | Alarm and generators | Eureka · Humboldt County | — | — |
| Eureka Earthworks | Orion David Thompson | — | (707) 616 4003 | GC, remodel, ADU | Eureka · Humboldt County | — | — |
| Eureka Fire Protection | William Edward Iv Frye | — | (707) 682 6111 | GC, remodel, ADU | Fortuna · Humboldt County | — | — |
| Eureka Fire Protection | Eureka Fire Protection | — | (707) 682 6111 | GC, remodel, ADU | Fortuna · Humboldt County | — | — |
| Eureka Floor Carpet One | Michael George Jurkovich | — | (707) 443 9321 | Other | Eureka · Humboldt County | — | — |
| Eureka Glass Company INC | Patrick Dennis Conway | info@eurekaglass.com | (707) 443 7007 | Windows, patio, painters | Eureka · Humboldt County | — | — |
| Eureka Overhead Door Co | Ryan Andrew Mc Laughlin | — | (707) 443 5529 | Other | Eureka · Humboldt County | — | — |
| Eureka Oxygen Company | Darin Brody Blackwell | — | (707) 443 2228 | Other | Eureka · Humboldt County | — | — |
| Eureka Telco | Eureka Telco | — | (707) 499 6757 | Other | Eureka · Humboldt County | — | — |
| Eureka-humboldt Fire Extinguisher Company INC | Arlie Henry Eglian | — | (707) 822 2517 | Other | Arcata · Humboldt County | — | — |
| Evans Construction | H Patrick Evans | — | (707) 834 5811 | GC, remodel, ADU | Mc Kinleyville · Humboldt County | — | — |
| Evans Mechanical INC | Joseph Scott Tanno Senior | — | (707) 445 1435 | HVAC | Eureka · Humboldt County | — | — |
| Evergreen Landscape LLC | David Paul Blevin | — | (707) 822 1332 | Windows, patio, painters | Mc Kinleyville · Humboldt County | — | — |
| Excel Heating And Cooling LLC | Stephen Spencer Carmichael | — | (707) 346 4264 | HVAC | Mc Kinleyville · Humboldt County | — | — |
| Excell Painting | Excell Painting | — | (707) 443 7268 | Windows, patio, painters | Eureka · Humboldt County | — | — |
| F V Construction | Francis Emile Voignier | — | (707) 499 8329 | GC, remodel, ADU | Arcata · Humboldt County | — | — |
| Farias Construction LLC | Jose Manuel Farias Valdovinos | fariasconstruction21@yahoo.com | (707) 498 0482 | GC, remodel, ADU | Eureka · Humboldt County | — | — |
| Ferndale Home Solutions | Ferndale Home Solutions | — | (707) 599 5769 | GC, remodel, ADU | Ferndale · Humboldt County | — | — |