| Hptn Construction LLC | Thang Van Nguyen | — | (805) 490 1524 | GC, remodel, ADU | Thousand Oaks · Ventura County | — | — |
| Hq Window Cleaning & Pressure Washing Maintenance | Hunter James Quintanar | — | (310) 383 3855 | Other | Newbury Park · Ventura County | — | — |
| Hr Towers Company INC | Dylan Randall Towers | — | (805) 405 1871 | GC, remodel, ADU | Simi Valley · Ventura County | — | — |
| Hrm Family Flooring | Hrm Family Flooring | — | (805) 376 5533 | Other | Newbury Park · Ventura County | — | — |
| Huber Custom Construction INC | Huber Shawn | — | (818) 564 9109 | GC, remodel, ADU | Thousand Oaks · Ventura County | — | — |
| Hubert Construction INC | Todd George Hubert | jeff@hubert-construction.com | (805) 498 8811 | GC, remodel, ADU | Newbury Park · Ventura County | — | — |
| Huckaby Construction | Thomas Eugene Huckaby | huckabyconstruction@yahoo.com | (805) 558 9331 | Other | Simi Valley · Ventura County | — | — |
| Hughes Construction Services | Nathan David Hughes | — | (805) 768 4087 | GC, remodel, ADU | Newbury Park · Ventura County | — | — |
| Hughes Home Construction | Bradley Michael Hughes | — | (805) 218 8743 | GC, remodel, ADU | Camarillo · Ventura County | — | — |
| Hughes Plumbing Services INC | Brandon Lee Kennedy Hughes | brandon@hughesplumbingservices.com | (805) 273-8125 | Other | Newbury Park · Ventura County | — | — |
| Huizar Works | Victor Manuel Huizar | — | (805) 910 8093 | GC, remodel, ADU | Camarillo · Ventura County | — | — |
| Huizar's Concrete | Juan Carlos Huizar Huizar | — | (805) 844 5919 | Other | Oxnard · Ventura County | — | — |
| Huizenga Tile Brick And Stone | Huizenga Tile Brick And Stone | — | (805) 340 2912 | Other | Ventura · Ventura County | — | — |
| Humberto Perez Painting | Humberto Perez Painting | — | (805) 317 9837 | Windows, patio, painters | Ojai · Ventura County | — | — |
| Hummel Pools INC | Donald Joseph Hummel | — | (805) 405 2228 | Pool | Camarillo · Ventura County | — | — |
| Hummin Plumbing | Hummin Plumbing | — | (805) 499 7655 | Other | Oxnard · Ventura County | — | — |
| Hummingbird Construction | Christopher John Hoover | — | (805) 535 5117 | GC, remodel, ADU | Ojai · Ventura County | — | — |
| Hummingbird Tech Planning & Services | Robert Brandon Jackson | — | (805) 368 6984 | Other | Camarillo · Ventura County | — | — |
| Hunt's Plumbing | Hunter Allen Guinn | — | (805) 667 7042 | Other | Ventura · Ventura County | — | — |
| Hunter Electric INC | William Wallace Iii Hunter | — | (805) 509 8323 | Electricians | Santa Paula · Ventura County | — | — |
| Hutchison Painting & Decorating | Hutchison Painting & Decorating | — | (805) 492 8852 | Windows, patio, painters | Thousand Oaks · Ventura County | — | — |
| HVAC Heating & Air Conditioning Contractor | HVAC Heating & Air Conditioning Contractor | — | (805) 243-3235 | HVAC | Oxnard · Ventura County | — | — |
| HVAC Tech Air Conditioning And Heating | David Charles Murrie | — | (661) 916 5749 | HVAC | Ventura · Ventura County | — | — |
| Hvdc INC | Brian Thomas Harris | — | (805) 480 4002 | Other | Thousand Oaks · Ventura County | — | — |
| Hw 2000 Construction | Howard Hao Wang | — | (805) 263 7126 | GC, remodel, ADU | Newbury Park · Ventura County | — | — |
| Hybrid Construction | Banuelos Alonzo | — | (805) 816 0324 | GC, remodel, ADU | Ojai · Ventura County | — | — |
| Hydam Construction INC | Mohammed Bin Esa | — | (805) 498 7786 | GC, remodel, ADU | Newbury Park · Ventura County | — | — |
| Hydroblast West INC | Rangel Rodolfo Rodriguez | — | (805) 452 2622 | Other | Oxnard · Ventura County | — | — |
| Hydrology Plumbing | Hydrology Plumbing | — | (805) 760 2444 | Other | Oxnard · Ventura County | — | — |
| Hydropressure Cleaning INC | Jeffrey Brian Glass | — | (805) 383 2868 | Other | Camarillo · Ventura County | — | — |
| Hydrotek Sewer And Pipe Services INC | Eric Martin Pagliano | — | (805) 201 8728 | Other | Ventura · Ventura County | — | — |
| Hyperion Drywall Metal Framing | Hyperion Drywall Metal Framing | — | (310) 919 7609 | Other | Thousand Oaks · Ventura County | — | — |
| I E C Contractors | Eddie Herman Zavala | info@ieccontractors.com | (805) 581 3032 | Electricians | Simi Valley · Ventura County | — | — |
| I K D INC | Andranik Chilingaryan | — | (818) 255 2165 | Other | Westlake Village · Ventura County | — | — |
| I M G Glass & Mirror | George Ross Widel | — | (818) 968 0987 | Windows, patio, painters | Simi Valley · Ventura County | — | — |
| I-level Development | I-level Development | — | (661) 240 9020 | GC, remodel, ADU | Fillmore · Ventura County | — | — |
| Ian Bridge Painting INC | Ian Ronald Bridge | — | (818) 621 7400 | Windows, patio, painters | Oxnard · Ventura County | — | — |
| Icon Builders LLC | Vicente Alejandro Castro | — | (805) 427 0071 | GC, remodel, ADU | Camarillo · Ventura County | — | — |
| Icool Air Conditioning & Heating INC | Jason Robert Searles | — | (805) 857 9487 | HVAC | Simi Valley · Ventura County | — | — |
| Ideal 2000 | Ideal 2000 | — | (818) 486 6534 | GC, remodel, ADU | Moorpark · Ventura County | — | — |