| T J N Dozer & Backhoe Service LLC | Thomas Jr Newton | — | (805) 481 1505 | Other | Nipomo · San Luis Obispo County | — | — |
| T J Perozzi Construction | Timothy Joel Perozzi | — | (805) 547 8797 | GC, remodel, ADU | San Luis Obispo · San Luis Obispo County | — | — |
| T J Reynolds Custom Woodworks | T J Reynolds Custom Woodworks | — | (805) 772 2506 | Other | Morro Bay · San Luis Obispo County | — | — |
| T K & M Construction INC | Thomas James Tierney | — | (805) 801 4732 | Electricians | Harmony · San Luis Obispo County | — | — |
| T Ketcham Fence | T Ketcham Fence | — | (805) 801 1524 | Other | Cayucos · San Luis Obispo County | — | — |
| T L C Construction | Todd Lance Crandall | — | (805) 680 2093 | GC, remodel, ADU | Pismo Beach · San Luis Obispo County | — | — |
| T L Electric | Timmy Lee Lentz | — | (805) 975 7979 | Electricians | San Luis Obispo · San Luis Obispo County | — | — |
| T L Mauro Construction INC | Terri Lynn Mauro | — | (661) 978 3672 | GC, remodel, ADU | Nipomo · San Luis Obispo County | — | — |
| T Woody Construction | Toni Jean Woody | — | (805) 471 2070 | GC, remodel, ADU | Morro Bay · San Luis Obispo County | — | — |
| Tab Miller Electric INC | Tab Craig Miller | — | (805) 929 3655 | Electricians | Nipomo · San Luis Obispo County | — | — |
| Tada Services LLC | Allen Lee Shewmaker | — | (805) 215 4700 | GC, remodel, ADU | San Luis Obispo · San Luis Obispo County | — | — |
| Tahoe Paint Co | Kyle Channing Kleinsmith | — | (805) 748 1534 | GC, remodel, ADU | Grover Beach · San Luis Obispo County | — | — |
| Take Two Painting INC | Christina Nicole Trombley | — | (805) 296 3124 | Windows, patio, painters | Paso Robles · San Luis Obispo County | — | — |
| Tatum Asphalt | Billy Wayne Tatum | — | (805) 489 5949 | Other | Nipomo · San Luis Obispo County | — | — |
| Taylor Custom Construction INC | Eric Lee Taylor | — | (805) 674 6246 | GC, remodel, ADU | Templeton · San Luis Obispo County | — | — |
| Taylor James Hamil | Taylor James Hamil | — | (805) 459 4870 | Other | San Luis Obispo · San Luis Obispo County | — | — |
| Taylor Jane Construction LP | Angela Mari Souza | — | (805) 723 5129 | GC, remodel, ADU | Nipomo · San Luis Obispo County | — | — |
| Taylor Nester Construction INC | Taylor James Nester | — | (805) 723 4761 | GC, remodel, ADU | Grover Beach · San Luis Obispo County | — | — |
| Taylor'd Floor Covering | Taylor'd Floor Covering | — | (805) 270 0019 | Other | Nipomo · San Luis Obispo County | — | — |
| Taylor's Painting Company | Mark Scott Taylor | — | (805) 610 4444 | Windows, patio, painters | Paso Robles · San Luis Obispo County | — | — |
| Tc Enterprise Construction | Tyler James Cameron | tyler@tcenterpriseconstruction.com | (805) 458 4547 | GC, remodel, ADU | San Luis Obispo · San Luis Obispo County | — | — |
| Td Construction | Tyler Jacob Daugherty | — | (805) 927 4176 | GC, remodel, ADU | Cambria · San Luis Obispo County | — | — |
| Tdn Industries INC | James W Keeney | jimk@tdnindustries.com | (805) 995 4621 | Electricians | Los Osos · San Luis Obispo County | — | — |
| Teague Electric INC | Craig Michael Teague | — | (805) 540 9166 | Electricians | Paso Robles · San Luis Obispo County | — | — |
| Team Low - High Electric | Jonathan Charles Lohayza | — | (805) 674 1871 | Electricians | Santa Margarita · San Luis Obispo County | — | — |
| Ted Muller Plastering INC | Ted Duane Muller | — | (805) 226 7686 | Other | Paso Robles · San Luis Obispo County | — | — |
| Ted Plemons Construction Co INC | Theodore Vance Plemons | — | (805) 239 4626 | GC, remodel, ADU | Paso Robles · San Luis Obispo County | — | — |
| Ted Sloan Electric | Ted William Sloan | — | (805) 343 1254 | Electricians | Arroyo Grande · San Luis Obispo County | — | — |
| Templeton Electric INC | Everett John Riley | julie@templetonelectric.com | (805) 286 6786 | Electricians | Atascadero · San Luis Obispo County | — | — |
| Templeton Floor Company INC | Susan Edith Torgerson | — | (805) 434 2848 | Other | Templeton · San Luis Obispo County | — | — |
| Templeton Glass Company INC | Kelly Nicole Flannagan | info@templetonglass.com | (805) 434 3438 | Windows, patio, painters | Paso Robles · San Luis Obispo County | — | — |
| Templeton Heating And Air Conditioning | Templeton Heating And Air Conditioning | — | (805) 434 3741 | HVAC | Paso Robles · San Luis Obispo County | — | — |
| Templeton Steel Fabrication INC | Jordan James Mc Caffrey | — | (805) 239 5641 | Other | Paso Robles · San Luis Obispo County | — | — |
| Tennis Landscape Corp | Tomasita Nmn Sarabia | — | (805) 773 3600 | Windows, patio, painters | Grover Beach · San Luis Obispo County | — | — |
| Terra Construction Group INC | Darin Charles Terrazas | info-tcgllc@mail.ru | (805) 208 2982 | GC, remodel, ADU | Templeton · San Luis Obispo County | — | — |
| Terrian Engineering & Construction | Joseph Edward Terrian | — | (805) 704 1176 | GC, remodel, ADU | Pismo Beach · San Luis Obispo County | — | — |
| Terry Home Inspection Services | Terry Home Inspection Services | terryhomeinspection@gmail.com | (805) 434-2694 | Inspectors | Templeton · San Luis Obispo County | — | — |
| Terry Stone Painting | Terry Stone Painting | — | (805) 710 1628 | Windows, patio, painters | Los Osos · San Luis Obispo County | — | — |
| Terry's Tile INC | Barrera Vasquez Martin | — | (805) 674 8188 | Other | Paso Robles · San Luis Obispo County | — | — |
| Testerman Construction | Christopher Neil Testerman | — | (805) 602 1950 | GC, remodel, ADU | Avila Beach · San Luis Obispo County | — | — |