| Trivalley Landscapes | Trivalley Landscapes | — | (805) 535 0119 | Windows, patio, painters | Ventura · Ventura County | — | — |
| Troncoso Construction INC | Gerardo Adrian Troncoso | — | (805) 484 6311 | GC, remodel, ADU | Camarillo · Ventura County | — | — |
| Troncoso Masonry Design INC | Gerardo Adrian Troncoso | — | (805) 484 6311 | Other | Camarillo · Ventura County | — | — |
| Tropical Paradise Landscaping | Tropical Paradise Landscaping | — | (805) 732 6607 | Windows, patio, painters | Moorpark · Ventura County | — | — |
| Tropical Pool Services | Eric Jack Palkovic | — | (805) 558 0381 | Pool | Simi Valley · Ventura County | — | — |
| Troutwine Plumbing INC | Norman Lee Troutwine | — | (818) 592 6445 | Other | Simi Valley · Ventura County | — | — |
| Troxler & Sons Construction | Craig Michael Troxler | — | (805) 432 9804 | HVAC | Simi Valley · Ventura County | — | — |
| Troy Lee Construction INC DBA Wildwood Construction | Troy Lee Stickney | — | (310) 465 8512 | GC, remodel, ADU | Moorpark · Ventura County | — | — |
| Troy Nial Messerly DBA T N M Construction Co | Troy Nial Messerly | — | (805) 579 8679 | GC, remodel, ADU | Simi Valley · Ventura County | — | — |
| Troy Restivo Painting | Troy Restivo Painting | — | (805) 551 6690 | Windows, patio, painters | Newbury Park · Ventura County | — | — |
| Tru Pro Landscape | Tru Pro Landscape | lcastaneda@truprolandscape.com | (805) 797 3397 | Windows, patio, painters | Oxnard · Ventura County | — | — |
| Tru-line Builders LLC | Bradford Ross Runnerstrum | — | (805) 208 1914 | GC, remodel, ADU | Oxnard · Ventura County | — | — |
| True Line Tile Co | Jonathan Conrad Walgren | — | (805) 501 4941 | Other | Simi Valley · Ventura County | — | — |
| True-cut Concrete Cutting Sawing & Breaking | Ronald James Nowak | — | (805) 482 1693 | Other | Camarillo · Ventura County | — | — |
| Truecore Construction LLC | Robyn Lynn Ellis | — | (310) 901 6767 | GC, remodel, ADU | Westlake Village · Ventura County | — | — |
| Trust Builders Construction | Raul Barbosa Orozco | — | (805) 207 4669 | GC, remodel, ADU | Camarillo · Ventura County | — | — |
| Trustco Electric LLC | Cheyne Brickell Hoskins | — | (805) 490 0666 | Electricians | Newbury Park · Ventura County | — | — |
| Tsp Builders INC | Paramvir Singh Saggi | — | (818) 983 6204 | GC, remodel, ADU | Thousand Oaks · Ventura County | — | — |
| Tunney Construction Co | John Peter Tunney | — | (805) 300 8626 | GC, remodel, ADU | Thousand Oaks · Ventura County | — | — |
| Turf Construction Company INC | Kyle Andrew Christensen | info@turfconstruction.com | (805) 484 7766 | Other | Camarillo · Ventura County | — | — |
| Turf Masters Tm Synthetic Surfaces | Turf Masters Tm Synthetic Surfaces | — | (805) 527 1100 | Other | Simi Valley · Ventura County | — | — |
| Turner & Townsend Heery LLC | Robert Levin | — | (818) 591 8555 | GC, remodel, ADU | Westlake Village · Ventura County | — | — |
| Turner Air Conditioning & Heating INC | Brian Merritt Turner | — | (805) 577 8642 | HVAC | Simi Valley · Ventura County | — | — |
| Turning Point Group LLC | Tzvi Hirsch Haber | — | (732) 691 9638 | GC, remodel, ADU | Simi Valley · Ventura County | — | — |
| Turnkey Design Group INC | Michael Scott Campbell | — | (805) 990 7577 | GC, remodel, ADU | Moorpark · Ventura County | — | — |
| Tw Construction | Troy Richard Warn | — | (805) 587 5591 | GC, remodel, ADU | Simi Valley · Ventura County | — | — |
| Twin Oaks Builders INC | Daniel Ray Foxx | juan@twinoaksbuilders.com | (805) 816 5315 | GC, remodel, ADU | Newbury Park · Ventura County | — | — |
| Twins Construction INC & Perspective Ideas | Fernando Araujo Vega | — | (805) 320 7997 | GC, remodel, ADU | Ventura · Ventura County | — | — |
| Twins Roofing Corp | Liliana Michelle Rojas Aguilar | twinsroofingcorp@gmail.com | (805) 814 9795 | Other roofers | Oxnard · Ventura County | — | — |
| Two Guys Development General Contractor | Two Guys Development General Contractor | — | (805) 857 3630 | GC, remodel, ADU | Simi Valley · Ventura County | — | — |
| Two Trees Cabinetry | David William Chase | — | (805) 665 3347 | GC, remodel, ADU | Ventura · Ventura County | — | — |
| Two Trees Construction INC | Nicholas Timothy Vaughn | — | (805) 377 2774 | GC, remodel, ADU | Ventura · Ventura County | — | — |
| Two Trees Home Services Plumbing Division | Matthew David Corse | — | (805) 940 1204 | Other | Ventura · Ventura County | — | — |
| Tycore HVAC Services | Tyler Alan Smith | — | (805) 798 4848 | HVAC | Ventura · Ventura County | — | — |
| Tyler M Bunker | Tyler M Bunker | — | (805) 501 5788 | Other | Simi Valley · Ventura County | — | — |
| Tyman Construction INC | Tyler Dinsmore Rehak | tymanconstruction@gmail.com | (831) 920 8408 | GC, remodel, ADU | Ojai · Ventura County | — | — |
| Typark Construction INC | Mitch Alexander Maki | — | (818) 681 7685 | GC, remodel, ADU | Oxnard · Ventura County | — | — |
| Tyrell Ralston | Tyrell Ralston | — | (805) 760 4976 | GC, remodel, ADU | Santa Paula · Ventura County | — | — |
| Tyrus | Ty Mikel Jeffery | — | (805) 798 4370 | GC, remodel, ADU | Ojai · Ventura County | — | — |
| U S Air Conditioning & Heating | Shan Simon Hacco | — | (818) 207 1245 | HVAC | Newbury Park · Ventura County | — | — |