| Newbery Construction | Steven Mark Newbery | — | (760) 500 9104 | GC, remodel, ADU | El Centro · Imperial County | — | — |
| Nexair Heating & Air INC | Alex Miranda | — | (760) 239 8003 | HVAC | Imperial · Imperial County | — | — |
| Nicholas Sanchez Jr | Nicholas Sanchez Jr | — | (760) 352 4323 | GC, remodel, ADU | Imperial · Imperial County | — | — |
| Np Power | Np Power | — | (760) 425 0427 | Electricians | El Centro · Imperial County | — | — |
| O R Cooling | O R Cooling | — | (760) 791 9689 | HVAC | El Centro · Imperial County | — | — |
| Ocejo Construction Company | Ocejo Heriberto | — | (760) 595 2171 | GC, remodel, ADU | Calexico · Imperial County | — | — |
| Old School Builders INC | Yesenia Gutierrez | — | (760) 482 8661 | GC, remodel, ADU | Brawley · Imperial County | — | — |
| Olvera Air Conditioning INC | Olvera Elias | — | (760) 259 5490 | HVAC | Calexico · Imperial County | — | — |
| Omega Electric INC | Kent Charles Constable | — | (760) 351 2089 | Electricians | Brawley · Imperial County | — | — |
| Orion M S Construction Company | Martinez-saldana Francisco | — | (760) 604 4702 | GC, remodel, ADU | El Centro · Imperial County | — | — |
| Padilla General Contractors INC | Pablo Daniel Padilla Leon | — | (760) 693 9308 | GC, remodel, ADU | El Centro · Imperial County | — | — |
| Panair Plus | Panair Plus | — | (760) 355 4665 | HVAC | El Centro · Imperial County | — | — |
| Paradise Construction | Mark Alan Rodriguez | — | (760) 792 5392 | GC, remodel, ADU | Imperial · Imperial County | — | — |
| Partida Heating And Air Conditioning | Partida Heating And Air Conditioning | — | (760) 699 9933 | HVAC | El Centro · Imperial County | — | — |
| Paz Construction Co | Agustin Gonzalez Paz | amkryukov@gmail.com | (760) 884 9074 | Electricians | Calexico · Imperial County | — | — |
| Pena Plastering | Pena Plastering | — | (760) 355 7862 | Other | Imperial · Imperial County | — | — |
| Perfecto Construction | Jose Guadalupe Ortiz | — | (760) 897 9184 | GC, remodel, ADU | Calexico · Imperial County | — | — |
| Pink Hats INC | Susana Selene Ortega | info@pink-hats.com | (442) 231 8591 | Electricians | El Centro · Imperial County | — | — |
| Pinky Usa Corporation | Arturo Gomez Ruiz | — | (760) 222 5805 | GC, remodel, ADU | Calexico · Imperial County | — | — |
| Pioneer Affordable Homes INC | Ashley Le Marie Bertussi | — | (760) 352 2841 | GC, remodel, ADU | El Centro · Imperial County | — | — |
| Pixabytes Solutions INC | Armando Jaramillo | — | (760) 565 5003 | Other | Calexico · Imperial County | — | — |
| Plantasia INC | Alexander John Colovic | v@build.version | (310) 375 0387 | Windows, patio, painters | Palos Verdes · Imperial County | — | — |
| Plumbing Services | Luis Guillermo Avalos | impallari@gmail.com | (760) 679 7297 | Other | El Centro · Imperial County | — | — |
| Pmc LLC | Jason Alan Turner | — | (760) 356 4185 | Other | Holtville · Imperial County | — | — |
| Polar Air Mechanical INC | Sergio Armando Jr Miranda | polarairmechanical@yahoo.com | (760) 455 4684 | HVAC | Imperial · Imperial County | — | — |
| Polytech Pest Control Services | Polytech Pest Control Services | — | (619) 900-7567 | Pest, tile roofs | Imperial Beach · Imperial County | — | — |
| Porta Home Equipment Garage Door INC | Marco Antonio Romero | — | (760) 768 8727 | Other | Calexico · Imperial County | — | — |
| Power Doc Electric | Henry Fuller Valdez | — | (760) 455 2102 | Electricians | Heber · Imperial County | — | — |
| Preece Overhead Door | Preece Overhead Door | — | (760) 604 1087 | Other | El Centro · Imperial County | — | — |
| Premier Electrical Solutions INC | Jose Luis Miranda | — | (619) 454 8798 | Electricians | Calexico · Imperial County | — | — |
| Prime Welding Contractors INC | Antonio Rodriguez | — | (760) 626 5836 | Other | Imperial · Imperial County | — | — |
| Primo Construction & Services INC | Michael David Mc Kinley | — | (760) 344 8500 | Other | Brawley · Imperial County | — | — |
| Psoqui Remodeling | Pedro Humberto Soq Romero | — | (442) 258 6504 | GC, remodel, ADU | Calexico · Imperial County | — | — |
| Pyramid Construction | Daryl Curt Dickerson | — | (443) 615-3303 | Other | Heber · Imperial County | — | — |
| Pyramid Construction And Aggregates INC | Daryl Curt Dickerson | — | (760) 337 5839 | Other | Heber · Imperial County | — | — |
| Quality Restorations Construction Services | Luis Gerardo Ramirez | — | (760) 997 6831 | GC, remodel, ADU | Imperial · Imperial County | — | — |
| R Garcia Construction INC | Raul L Valenzuela| Garcia Rg Leonel Garcia | — | (760) 351 9382 | GC, remodel, ADU | Brawley · Imperial County | — | — |
| R J Medina Construction Co | Romualdo John Medina | — | (760) 348 7506 | GC, remodel, ADU | Calipatria · Imperial County | — | — |
| Ra3 Engineering | Ra3 Engineering | — | (760) 556 0392 | Other | El Centro · Imperial County | — | — |
| Radco INC | Richard Anthony Kuhn | — | (760) 344 4004 | Other | Brawley · Imperial County | — | — |