| Johnson Construction Enterprise Limited Liability Company | Johnson Joseph | — | (831) 224 3131 | GC, remodel, ADU | Marina · Monterey County | — | — |
| Johnson Electronics | Shawna Lynette Johnson | — | (831) 424 6459 | Electricians | Salinas · Monterey County | — | — |
| Johnston Engineering LLC | Brian Dean Johnston | — | (831) 659 5925 | Other | Carmel Valley · Monterey County | — | — |
| Jolley Builders INC | Marc Louis Jolley | agustinamingote@gmail.com | (831) 238 6044 | GC, remodel, ADU | Carmel · Monterey County | — | — |
| Jon C Skromme General Builders | Jon C Skromme General Builders | — | (831) 212 2459 | GC, remodel, ADU | Lockwood · Monterey County | — | — |
| Jon Ramsey Construction | Jon Frederic Ramsey | — | (831) 915 1284 | GC, remodel, ADU | Carmel · Monterey County | — | — |
| Jon Shoemaker Hardwood Floors | Jon Shoemaker Hardwood Floors | — | (831) 915 2619 | Other | Carmel · Monterey County | — | — |
| Jon Stuefloten Restoration Painting | Jon Stuefloten Restoration Painting | anapbm@gmail.com | (831) 320 3252 | Windows, patio, painters | Carmel Valley · Monterey County | — | — |
| Jonah's Tile | Jonah's Tile | — | (831) 206 0425 | Other | Pacific Grove · Monterey County | — | — |
| Jonathan Ford | Jonathan Ford | — | (831) 659 4107 | GC, remodel, ADU | Seaside · Monterey County | — | — |
| Jonathan Thomas Masonry | Jonathan Thomas Masonry | — | (831) 238 3147 | Other | Carmel Valley · Monterey County | — | — |
| Jorge Adalberto Garcia Gonzalez | Jorge Adalberto Garcia Gonzalez | — | (831) 241 8058 | Other | Salinas · Monterey County | — | — |
| Jorge Partida Electric INC | Jorge Anaid Partida Castaneda | — | (831) 288 1414 | Electricians | Marina · Monterey County | — | — |
| Jose E Silva General Builder | Jose E Silva General Builder | — | (831) 214 3131 | GC, remodel, ADU | King City · Monterey County | — | — |
| Jose Earthwork | Jose Earthwork | — | (831) 901 5734 | Other | Soledad · Monterey County | — | — |
| Jose Jasso Home Remodeling | Jose Jasso Home Remodeling | — | (831) 600 6677 | GC, remodel, ADU | Salinas · Monterey County | — | — |
| Joseph Wargo | Joseph Wargo | — | (831) 373 0391 | GC, remodel, ADU | Monterey · Monterey County | — | — |
| Josh Gates Construction & Fencing | Joshua Paul Gates | — | (831) 578 5594 | GC, remodel, ADU | Spreckels · Monterey County | — | — |
| Jp All Construction INC | Jose Luis Pantoja Pina | impallari@gmail.com | (831) 760 6663 | GC, remodel, ADU | Monterey · Monterey County | — | — |
| Jp Plastering | Jp Plastering | — | (831) 383 0895 | Other | Seaside · Monterey County | — | — |
| Jr'l Construction | Jose Ricardo Leonor Silva | — | (831) 794 0213 | GC, remodel, ADU | Castroville · Monterey County | — | — |
| Jrg Construction | James J Flores | — | (831) 750 0634 | Other | Salinas · Monterey County | — | — |
| Jrg Tree Service LLC | Jesus Jr Ruelas Gamboa | — | (831) 521 8173 | Other | Seaside · Monterey County | — | — |
| Jsb Metal Gutters | Jsb Metal Gutters | — | (831) 210 6769 | Other | Salinas · Monterey County | — | — |
| Jtb Construction | Juan Daniel Rosas | — | (831) 747 7787 | GC, remodel, ADU | Pacific Grove · Monterey County | — | — |
| Juan Jimenez | Juan Jimenez | — | (831) 578 1310 | GC, remodel, ADU | Salinas · Monterey County | — | — |
| Juan Rodriguez | Juan Rodriguez | — | (831) 905 8710 | GC, remodel, ADU | Salinas · Monterey County | — | — |
| Jupiter Electric | John Carlton Jr White | — | (831) 737 7294 | Electricians | Salinas · Monterey County | — | — |
| Just Brilliant Tile | Just Brilliant Tile | justbrillianttile@gmail.com | (408) 768 0020 | Other | Marina · Monterey County | — | — |
| Justin Iles Decorative Stone Works | Justin Iles Decorative Stone Works | — | (831) 915 8878 | Other | Carmel Valley · Monterey County | — | — |
| Jv Plastering | Jv Plastering | — | (831) 254 0878 | Other | Castroville · Monterey County | — | — |
| Jvr Construction | Joel Virgen Rangel | — | (831) 512 3166 | GC, remodel, ADU | Soledad · Monterey County | — | — |
| Jw Electrical Solutions | Whitehead Japeth | — | (831) 809 5636 | Electricians | Salinas · Monterey County | — | — |
| Jz Konstruction | Jz Konstruction | — | (831) 917 9005 | GC, remodel, ADU | Carmel · Monterey County | — | — |
| Jz Painting | Jz Painting | — | (831) 261 6636 | Windows, patio, painters | Salinas · Monterey County | — | — |
| K C Lath | K C Lath | — | (831) 320 4220 | Other | Royal Oaks · Monterey County | — | — |
| K D Construction INC | Kelly Melvin Iii Dyer | — | (831) 238 5562 | GC, remodel, ADU | Carmel · Monterey County | — | — |
| K F Construction INC | Kevin Allen Flanders | — | (831) 236 6871 | GC, remodel, ADU | Salinas · Monterey County | — | — |
| K F INC | Kevin Lawrence Fennimore | — | (831) 254 2543 | GC, remodel, ADU | Carmel · Monterey County | — | — |
| K M Construction | Kirk Michael Martorella | — | (831) 915 5870 | GC, remodel, ADU | Salinas · Monterey County | — | — |