| Prime Guard Roofing | Diana Quiroz Cahue | — | (805) 535 6455 | Other roofers | Oxnard · Ventura County | — | — |
| Prime Residential Sales INC | Marco Vojislav Vujicic | — | (818) 991 6629 | GC, remodel, ADU | Westlake Village · Ventura County | — | — |
| Prime Signs | Juan Gabriel Tolentino | — | (805) 754 1444 | Other | Oxnard · Ventura County | — | — |
| Prime Tile & Stone Construction | Timothy J Mosdale | — | (805) 216 5964 | Other | Camarillo · Ventura County | — | — |
| Prime Time Electric | Luis Leopoldo Herrera | — | (805) 754 6041 | Electricians | Ventura · Ventura County | — | — |
| Primo Pool & Spa Service & Repair | Joel B Fortunato | — | (805) 813 4197 | Pool | Simi Valley · Ventura County | — | — |
| Priority Electric | Michael Daniel Ryan | — | (818) 991 8118 | Electricians | Simi Valley · Ventura County | — | — |
| Pristine Gardenscape LLC | Emma Louise Horowitz | info@pristinegardenscape.com | (833) 788 0517 | Windows, patio, painters | Moorpark · Ventura County | — | — |
| Pristine Landscapes | Pristine Landscapes | — | (805) 509 6031 | Windows, patio, painters | Ventura · Ventura County | — | — |
| Pristine Pool & Spa Service INC | Bryan Joseph Keller | — | (805) 241 9289 | Pool | Thousand Oaks · Ventura County | — | — |
| Pro | Pro | — | (805) 552-5951 | Restoration | Ventura · Ventura County | — | — |
| Pro - Line Electric INC | James Michael Jones | — | (805) 647 4024 | Electricians | Ventura · Ventura County | — | — |
| Pro Bathtub Refinishing INC | Fredy Pastor Rodriguez Navarrete | info@indiantypefoundry.com | (800) 590 5024 | Other | Simi Valley · Ventura County | — | — |
| Pro Caliber Hardwood Flooring | Pro Caliber Hardwood Flooring | — | (310) 560 5172 | Other | Newbury Park · Ventura County | — | — |
| Pro Circuit Painters | Pro Circuit Painters | — | (805) 394-1693 | Windows, patio, painters | Ventura · Ventura County | — | — |
| Pro Detail Painting | Pro Detail Painting | — | (805) 766 4254 | Windows, patio, painters | Ventura · Ventura County | — | — |
| Pro Dry Water Restoration INC | Jessie Nevarez | — | (805) 512 3768 | GC, remodel, ADU | Oxnard · Ventura County | — | — |
| Pro Faux - Restyle | Pro Faux - Restyle | — | (323) 236 8700 | Windows, patio, painters | Ventura · Ventura County | — | — |
| Pro Lawns Landscape | Pro Lawns Landscape | — | (805) 906 1897 | Windows, patio, painters | Thousand Oaks · Ventura County | — | — |
| Pro Solutions Plumbing And Rooter | Jerardo Garcia Arias | ajarias83@gmail.com | (805) 889 5007 | Other | Camarillo · Ventura County | — | — |
| Pro Window | Pro Window | — | (805) 910 5654 | Windows, patio, painters | Simi Valley · Ventura County | — | — |
| Pro-tech Systems INC | Paul Terry Ott | info@protechsystems.com | (805) 522 1659 | Electricians | Simi Valley · Ventura County | — | — |
| Procali Construction INC | Erik Clodualdo Mares Espinosa | — | (805) 758 1731 | GC, remodel, ADU | Oxnard · Ventura County | — | — |
| Process Water Services | Michael Edward Janowski | — | (805) 650 6833 | Other | Ventura · Ventura County | — | — |
| Production Plus Plumbing INC | Cody James Lebaron | — | (805) 484 3188 | HVAC | Camarillo · Ventura County | — | — |
| Professional Tile Installation | Professional Tile Installation | — | (805) 581 6477 | Other | Simi Valley · Ventura County | — | — |
| Prog Vision Painting | Prog Vision Painting | progvisionpainting@hotmail.com | (805) 637 1060 | Windows, patio, painters | Oxnard · Ventura County | — | — |
| Proline Filtration INC | Jared Scott Henderson | jsh@prolinefiltration.com | (805) 584 1102 | Other | Simi Valley · Ventura County | — | — |
| Pronto Plumbing | Pronto Plumbing | — | (805) 201 8872 | Other | Oxnard · Ventura County | — | — |
| Property Developers Group INC | Nicholas Kelvin Neilson | impallari@gmail.com | (310) 710 7686 | GC, remodel, ADU | Westlake Village · Ventura County | — | — |
| Property Maintenance Services | Berton John Duzy | — | (805) 583 8414 | Other | Thousand Oaks · Ventura County | — | — |
| Protech Wf Protection INC | Hamid Keyvani | — | (310) 920 3391 | Other | Thousand Oaks · Ventura County | — | — |
| Provolt Electric INC | Robert Richer Gosselin | — | (805) 728 0534 | Electricians | Camarillo · Ventura County | — | — |
| Pure Pool Services | Mohammed Ihssan Yassin | — | (805) 290 5810 | Pool | Oxnard · Ventura County | — | — |
| Pure Water Plumbing INC | Casi J Hamann | — | (805) 583 0829 | GC, remodel, ADU | Simi Valley · Ventura County | — | — |
| Puretec Industrial Water | James Allen Harris | — | (805) 988 1336 | Other | Oxnard · Ventura County | — | — |
| Pursuit Technology Partners INC | Alan Michael Kosh | — | (805) 340 4040 | Other | Ventura · Ventura County | — | — |
| Pyramid Pool & Spa Service | Craig Michael Wilson | — | (805) 340 7450 | Pool | Ventura · Ventura County | — | — |
| Q & E Construction | Daniel Thomas Turner | — | (805) 427 4514 | Other | Thousand Oaks · Ventura County | — | — |
| Q's Painting INC | Efrain Angel Jr Quintero | — | (401) 648-7414 | Windows, patio, painters | Oxnard · Ventura County | — | — |