| Jesse Mossa | Jesse Mossa | — | (951) 926 2524 | GC, remodel, ADU | Murrieta · Riverside County | — | — |
| Jesse Quitiquit Avila | Jesse Quitiquit Avila | — | (760) 296 8284 | Other | Coachella · Riverside County | — | — |
| Jesse Santana | Jesse Santana | — | (951) 901 9396 | Other | Riverside · Riverside County | — | — |
| Jesse Shirek's Pool Service | Jesse Lee Shirek | — | (760) 534 2996 | Pool | Cathedral City · Riverside County | — | — |
| Jesse Wilkerson Roofing | Jesse Dale Wilkerson | — | (951) 587 7578 | Other roofers | Idyllwild · Riverside County | — | — |
| Jesse's Tree Service INC | Tomas Jr Limon | — | (626) 331 1860 | Tree | Eastvale · Riverside County | — | — |
| Jesus Alcaraz | Jesus Alcaraz | — | (951) 490 9942 | Windows, patio, painters | Hemet · Riverside County | — | — |
| Jesus Baez Puerta | Jesus Baez Puerta | — | (760) 578 9975 | HVAC | Desert Hot Springs · Riverside County | — | — |
| Jesus Medina | Jesus Medina | — | (951) 538 5840 | Other | Hemet · Riverside County | — | — |
| Jesus Panduro Tile | Jesus Panduro Tile | — | (909) 667 9597 | Other | Riverside · Riverside County | — | — |
| Jesus Raul Hernandez | Jesus Raul Hernandez | — | (951) 427 8583 | Other | Riverside · Riverside County | — | — |
| Jesus Urbina Juarez | Jesus Urbina Juarez | — | (951) 642 3708 | GC, remodel, ADU | Corona · Riverside County | — | — |
| Jesvals Framing Co | Lorenzo Jesus Castillo | — | (951) 378 3084 | Other | Moreno Valley · Riverside County | — | — |
| Jet Aquatics | Mario Alberto Martinez | eben@eyebytes.com | (714) 730 1610 | GC, remodel, ADU | Eastvale · Riverside County | — | — |
| Jet Electrical | Jorge Cesar Pantoja | — | (909) 503 3142 | Electricians | Moreno Valley · Riverside County | — | — |
| Jet Painting | Jet Painting | micah@micahrich.com | (951) 599 3286 | Windows, patio, painters | Hemet · Riverside County | — | — |
| Jetcal Flooring | Jhovany Emanuel Torres | — | (951) 833 1633 | Other | Riverside · Riverside County | — | — |
| Jett Nettekoven | Jett Nettekoven | — | (951) 454 6165 | GC, remodel, ADU | Norco · Riverside County | — | — |
| Jevs Tile LLC | Jose Eduardo Villagrana | — | (760) 594 6914 | Other | Temecula · Riverside County | — | — |
| Jf Tree Service INC | Jose Felix Torres Orta | — | (951) 483 8299 | Tree | Perris · Riverside County | — | — |
| Jfd Construction INC | Jason Francisco Diaz | — | (951) 378 1403 | GC, remodel, ADU | Moreno Valley · Riverside County | — | — |
| Jfp Company | Jaime Jose Flores | — | (951) 453 9247 | GC, remodel, ADU | Corona · Riverside County | — | — |
| Jg Construction Services | Jorge Luis Godinez Navarro | — | (562) 326 7536 | GC, remodel, ADU | Riverside · Riverside County | — | — |
| Jg Metal Raingutters | Jared Ryan Green | — | (951) 201 9735 | Other | Nuevo · Riverside County | — | — |
| Jg Stouse Constructors-integrated Construction Group | J G Constructors INC Stouse | — | (951) 395 3847 | GC, remodel, ADU | Murrieta · Riverside County | — | — |
| Jga Restoration Pro | Jga Restoration Pro | — | (619) 715 4173 | GC, remodel, ADU | Lake Elsinore · Riverside County | — | — |
| Jgar Construction | Placido Gonzalez | — | (951) 256 6027 | GC, remodel, ADU | Riverside · Riverside County | — | — |
| Jh Legacy Specialties LLC | John Anthony Herder | — | (909) 791 9091 | Windows, patio, painters | Riverside · Riverside County | — | — |
| Jhernz Plumbing | Jesus Hernandez | — | (951) 642 4656 | Other | Corona · Riverside County | — | — |
| Jhr Realty Investment INC | Lei Zheng | — | (626) 295 5779 | GC, remodel, ADU | Eastvale · Riverside County | — | — |
| Jiangmin Li Construction | Li Jiangmin | — | (951) 245 3983 | GC, remodel, ADU | Temecula · Riverside County | — | — |
| Jiannoni Development & Management | Jiannoni Development & Management | — | (760) 902 4441 | GC, remodel, ADU | Indio · Riverside County | — | — |
| Jiayu Wu Construction | Wu Jiayu | — | (213) 322 3853 | GC, remodel, ADU | Corona · Riverside County | — | — |
| Jim & Sons Plumbing And Rooter INC | Donald Michael Costilow | — | (951) 248 9134 | Other | Riverside · Riverside County | — | — |
| Jim Armstrong Drywall | Jim Armstrong Drywall | — | (760) 568 1783 | Other | Palm Desert · Riverside County | — | — |
| Jim Breech Painting | Jim Breech Painting | — | (951) 805 8223 | Windows, patio, painters | Lake Elsinore · Riverside County | — | — |
| Jim Cambruzzi Electric | James Edward Cambruzzi | — | (951) 736 0709 | Electricians | Corona · Riverside County | — | — |
| Jim Dewyer Landscape Design & Maintenance | James Milton Jr Dewyer | — | (760) 250 9382 | Windows, patio, painters | Rancho Mirage · Riverside County | — | — |
| Jim La Rue | Jim La Rue | — | (951) 375 6532 | GC, remodel, ADU | Murrieta · Riverside County | — | — |
| Jim Liston | Jim Liston | — | (951) 265 8194 | HVAC | Riverside · Riverside County | — | — |