| Hurst Painting Company | Joseph Anthony Hurst | — | (951) 961 5290 | Windows, patio, painters | Hemet · Riverside County | — | — |
| Hus Construction | Hus Octavian | — | (909) 583 4255 | GC, remodel, ADU | Temecula · Riverside County | — | — |
| Hush Air | Darren Clay Huscher | — | (951) 789 4148 | HVAC | Riverside · Riverside County | — | — |
| Husky Pools | Jeffrey Joseph Bal | — | (951) 348 7710 | Pool | Murrieta · Riverside County | — | — |
| Hutcheson's Sprinkler Repair INC | Kevin Clark Mc Cune | — | (760) 578 8487 | Windows, patio, painters | Indio · Riverside County | — | — |
| Hutchinson Heating And Air | Orlando Mario Hutchinson | — | (951) 267 6326 | HVAC | Murrieta · Riverside County | — | — |
| Hv Landscaping & Design | Hv Landscaping & Design | — | (951) 755 3269 | Windows, patio, painters | Moreno Valley · Riverside County | — | — |
| HVAC And Chill | HVAC And Chill | — | (949) 473 4618 | HVAC | Riverside · Riverside County | — | — |
| HVAC Empire | Gutierrez Anthony | — | (951) 392 6637 | HVAC | Hemet · Riverside County | — | — |
| HVAC Pros Heating And Cooling | Julian Navarro | — | (760) 336 5077 | HVAC | Cathedral City · Riverside County | — | — |
| Hw General INC DBA Hw General Contracting | Jason Phillip Haber | — | (951) 808 2399 | GC, remodel, ADU | Lake Elsinore · Riverside County | — | — |
| Hwd Acquisition LLC DBA Hwd Mobile Home Contracting | Robert Anthony Noyola | — | (951) 296 1777 | GC, remodel, ADU | Temecula · Riverside County | — | — |
| Hy-tech Tile INC | Brian Leslie Lyman | — | (951) 788 0550 | Other | Riverside · Riverside County | — | — |
| Hybrid Power Electric INC | Jeremy Alan Quintana | — | (951) 473 7783 | Electricians | Murrieta · Riverside County | — | — |
| Hydes | Barry John Hyde | — | (760) 360 2202 | HVAC | Indio · Riverside County | — | — |
| Hydra Pools & Spas | Hydra Pools & Spas | — | (760) 902 8170 | Pool | Cathedral City · Riverside County | — | — |
| Hydrascope Engineering Co | Michael James Machado | — | (951) 763 4875 | Other | Anza · Riverside County | — | — |
| Hydro Plumbing | Hydro Plumbing | — | (951) 219 8937 | Other | Murrieta · Riverside County | — | — |
| Hydro Therapy | Hydro Therapy | — | (714) 680 3200 | Windows, patio, painters | Menifee · Riverside County | — | — |
| Hydro-chill Dynamics INC | Stephen Eric Carter | — | (951) 446 3396 | HVAC | Corona · Riverside County | — | — |
| Hydro-grow Hydro-seeding And Hydro-mulching | Hydro-grow Hydro-seeding And Hydro-mulching | — | (951) 926 4333 | Other | Winchester · Riverside County | — | — |
| Hydrocurrent Well Services LLC | Benjamin David Fain | — | (951) 414 5104 | Electricians | Temecula · Riverside County | — | — |
| Hydrolawn Company | Jonathan Edward Van Rossen | — | (951) 734 3505 | Windows, patio, painters | Corona · Riverside County | — | — |
| Hydrotech Electric | James Edward Nagel | — | (909) 948 1908 | Electricians | Winchester · Riverside County | — | — |
| Hydrotech LLC | Milton Timothy Closson | — | (760) 578 6924 | Other | Palm Desert · Riverside County | — | — |
| Hydrotek Industries | Mitchell Allen Herring | — | (951) 743 0674 | Other | Jurupa Valley · Riverside County | — | — |
| Hysell Pool Company | Daniel Ray Hysell | — | (760) 322 0834 | Pool | Cathedral City · Riverside County | — | — |
| Hytek Pipeline | Hytek Pipeline | — | (760) 308 7476 | Other | Coachella · Riverside County | — | — |
| I & C Doors | Ivan Alejandro Rodriguez | — | (909) 238 9349 | Other | Menifee · Riverside County | — | — |
| I & H Tile INC | Sergio Estuardo Martinez Mendez | — | (760) 600 6753 | Other | La Quinta · Riverside County | — | — |
| I & M Medina INC | Israel Hiram Medina Ramirez | — | (951) 532 6708 | Other | Perris · Riverside County | — | — |
| I & N Air Conditioning And Heating Co | Ismael Omar Nunez | — | (442) 381 9827 | HVAC | Coachella · Riverside County | — | — |
| I & S Coatings | Ivan Bautista | — | (951) 805 3206 | Windows, patio, painters | Winchester · Riverside County | — | — |
| I Am Cabinets And Closets LLC | Guzman Rojelio | — | (442) 370 9108 | Other | Indio · Riverside County | — | — |
| I Am Me Glazing | Matthew Robert Ellenz | — | (760) 831 6758 | Windows, patio, painters | Indio · Riverside County | — | — |
| I B Carpentry INC | Ivandic Bruno | — | (562) 500 9358 | GC, remodel, ADU | Corona · Riverside County | — | — |
| I B D | I B D | — | (760) 774 8188 | GC, remodel, ADU | Rancho Mirage · Riverside County | — | — |
| I B Paving & Parking Lot Specialist INC | Omar Fernando Ibanez Nieto | — | (909) 452 9408 | Other | Moreno Valley · Riverside County | — | — |
| I B R Saldana Construction Corporation | Benjamin Rizo Saldana | — | (951) 609 4169 | GC, remodel, ADU | Winchester · Riverside County | — | — |
| I B Wire Works LLC | Isaias Barragan | — | (909) 231 9364 | Electricians | Perris · Riverside County | — | — |