| Osborne Construction | Terry James Osborne | — | (707) 799 3999 | GC, remodel, ADU | Arcata · Humboldt County | — | — |
| Owsley Electric INC | Quentin Michael Owsley | owsleyelectric@gmail.com | (707) 725 9343 | Electricians | Fortuna · Humboldt County | — | — |
| P Michael Gent | P Michael Gent | — | (707) 599 5343 | GC, remodel, ADU | Fortuna · Humboldt County | — | — |
| Pacific Builders | James Nicholas Lucchesi | — | (916) 383-3168 | GC, remodel, ADU | Arcata · Humboldt County | — | — |
| Pacific Coast Home Inspections | Pacific Coast Home Inspections | — | (707) 889-0137 | Inspectors | Eureka · Humboldt County | — | — |
| Pacific Contracting | Thomas Jon Treman | — | (707) 499 0821 | GC, remodel, ADU | Arcata · Humboldt County | — | — |
| Pacific Crest Construction | Chris Eric Contreras | — | (707) 223 0465 | GC, remodel, ADU | Garberville · Humboldt County | — | — |
| Pacific Crest Granite INC | Blake Forest Boyd | — | (530) 355 7625 | Other | Eureka · Humboldt County | — | — |
| Pacific Earthscape | Heath William Ford | — | (707) 840 9442 | Other | Mc Kinleyville · Humboldt County | — | — |
| Pacific Gutter Pros INC | Robert Edward Muir | office@pacificgutterpros.com | (707) 719 2700 | Other | Arcata · Humboldt County | — | — |
| Pacific Property Management | Pacific Property Management | dave@lab6.com | — | Property managers | Arcata · Humboldt County | — | — |
| Pacific Sun Construction Group INC | Jenenne Marie Sanchez | — | (707) 358 0171 | GC, remodel, ADU | Whitethorn · Humboldt County | — | — |
| Pacific Watershed Associates | Pacific Watershed Associates | — | (707) 839-5130 | Restoration | Mckinleyville · Humboldt County | — | — |
| Padraic Cavanagh Construction | Padraic David Cavanagh | — | (707) 616 4702 | GC, remodel, ADU | Eureka · Humboldt County | — | — |
| Pancoast Construction | Chace Phillip Pancoast | — | (707) 498 1340 | GC, remodel, ADU | Rio Dell · Humboldt County | — | — |
| Paradigm Cabinets | Paradigm Cabinets | — | (707) 834 4296 | GC, remodel, ADU | Ferndale · Humboldt County | — | — |
| Parkinson Construction | Philip Scott Parkinson | — | (707) 235 4212 | Electricians | Eureka · Humboldt County | — | — |
| Parthenon Construction | Padre Asa Roth | — | (707) 496 5832 | GC, remodel, ADU | Mc Kinleyville · Humboldt County | — | — |
| Pastori Landscape | Pastori Landscape | — | (707) 599 7384 | Windows, patio, painters | Eureka · Humboldt County | — | — |
| Pat Kelly Construction | Patrick Bailey Kelly | — | (707) 601 5893 | GC, remodel, ADU | Loleta · Humboldt County | — | — |
| Patrick J Goodman Construction Company | Patrick John Goodman | — | (707) 223 1177 | GC, remodel, ADU | Redway · Humboldt County | — | — |
| Patrick Mauney Painting | Patrick Mauney Painting | — | (707) 834 6684 | Windows, patio, painters | Ferndale · Humboldt County | — | — |
| Patrick O'dwyer DBA Emerald Custom Construction | Patrick Joseph O'dwyer | — | (707) 620 8948 | GC, remodel, ADU | Blue Lake · Humboldt County | — | — |
| Patrick Queen Construction | Patrick Dean Queen | — | (707) 599 7883 | GC, remodel, ADU | Petrolia · Humboldt County | — | — |
| Paul Allen Const | Paul Allen Const | — | (707) 845 1036 | GC, remodel, ADU | Eureka · Humboldt County | — | — |
| Paul G Carpenter | Paul G Carpenter | — | (707) 445 8668 | Other | Eureka · Humboldt County | — | — |
| Paul Gurnee | Paul Gurnee | — | (707) 786 4533 | GC, remodel, ADU | Ferndale · Humboldt County | — | — |
| Pecora Construction | Charles Alan Pecora | — | (707) 499 2938 | GC, remodel, ADU | Garberville · Humboldt County | — | — |
| Peeples Construction | Paul Vernon Peeples | — | (707) 845 1565 | GC, remodel, ADU | Mc Kinleyville · Humboldt County | — | — |
| Pelascini Excavation | Pelascini Excavation | — | (707) 499 5356 | Other | Mc Kinleyville · Humboldt County | — | — |
| Pelren Electric Company | Rick Howard Pelren | — | (707) 476 3249 | Electricians | Rio Dell · Humboldt County | — | — |
| Perkins Enterprises | Doug Young Perkins | — | (408) 593 2454 | GC, remodel, ADU | Mc Kinleyville · Humboldt County | — | — |
| Perkins Professional Roofing | Riley Allen Perkins | — | (707) 362 7092 | Other roofers | Eureka · Humboldt County | — | — |
| Perris Construction | Steven Edward Perris | — | (707) 499 0475 | GC, remodel, ADU | Eureka · Humboldt County | — | — |
| Pete Kopka Builders | Pete Kopka Builders | — | (707) 496 7963 | GC, remodel, ADU | Bayside · Humboldt County | — | — |
| Peter Santino | Peter Santino | — | (707) 443 4377 | Windows, patio, painters | Eureka · Humboldt County | — | — |
| Petersen Construction | Dale Christian Petersen | interested@domainmarket.com | (707) 786 4878 | GC, remodel, ADU | Ferndale · Humboldt County | — | — |
| Peterson Plumbing | Peterson Plumbing | info@peterson-plumbing.com | (707) 407 6105 | GC, remodel, ADU | Fortuna · Humboldt County | — | — |
| Phillip Ostler | Phillip Ostler | — | (310) 995 3332 | Other | Ferndale · Humboldt County | — | — |
| Pierson Company | Gregory Ernest Pierson | firstname@pierson.com | (707) 268 1800 | GC, remodel, ADU | Eureka · Humboldt County | — | — |