| The Cabinetree Shop | The Cabinetree Shop | — | (916) 472 9186 | Other | Grover Beach · San Luis Obispo County | — | — |
| The Construction Company Of San Luis Obispo INC | Michael Ryan Pereira | — | (805) 556 2000 | GC, remodel, ADU | San Luis Obispo · San Luis Obispo County | — | — |
| The Craftsman Way | The Craftsman Way | — | (805) 674 1859 | Other | Atascadero · San Luis Obispo County | — | — |
| The Cutting Edge Grading Co | Kristen Raenell Barba | — | (805) 674 1101 | Other | San Miguel · San Luis Obispo County | — | — |
| The Door Guy | The Door Guy | — | (805) 773 1175 | GC, remodel, ADU | Shell Beach · San Luis Obispo County | — | — |
| The Floor Guys INC | Jon James Pettenger | interested@domainmarket.com | (805) 234 2904 | Other | Atascadero · San Luis Obispo County | — | — |
| The Good Love Company LLC | Joshua David Moody | — | (805) 316 1217 | GC, remodel, ADU | San Luis Obispo · San Luis Obispo County | — | — |
| The Green Diamond Landscaping | The Green Diamond Landscaping | office@greendiamondlandscaping.com | (775) 762-8109 | Windows, patio, painters | Atascadero · San Luis Obispo County | — | — |
| The Junk Taker | The Junk Taker | — | (805) 296 6480 | Other | Paso Robles · San Luis Obispo County | — | — |
| The Landis Group | Jeffrey James Landis | — | (805) 904 9156 | GC, remodel, ADU | Pismo Beach · San Luis Obispo County | — | — |
| The Lathrop Company | Scott Russell Lathrop | firstname@lathrop.com | (805) 801 8401 | GC, remodel, ADU | San Luis Obispo · San Luis Obispo County | — | — |
| The Lawn Ranger Co | Jacob Wayne Angles | — | (805) 712 6222 | Windows, patio, painters | Paso Robles · San Luis Obispo County | — | — |
| The Main Company INC | Charles Oliver Main | — | (805) 541 8746 | GC, remodel, ADU | Pismo Beach · San Luis Obispo County | — | — |
| The Metal Gutterman | Raymond Paul Hasch | — | (805) 468 9926 | Other | Atascadero · San Luis Obispo County | — | — |
| The Mountain Plumber | The Mountain Plumber | — | (805) 431 0174 | Other | Nipomo · San Luis Obispo County | — | — |
| The Next Level Tile | The Next Level Tile | — | (805) 835 5097 | Other | Paso Robles · San Luis Obispo County | — | — |
| The Patio Cover And Deck Co | Richard Edward Mussallem | — | (805) 235 2674 | GC, remodel, ADU | San Luis Obispo · San Luis Obispo County | — | — |
| The People's Painter | The People's Painter | — | (805) 574 5100 | Windows, patio, painters | Nipomo · San Luis Obispo County | — | — |
| The Plumber | The Plumber | — | (805) 459 4485 | Other | Nipomo · San Luis Obispo County | — | — |
| The Restoration Academy INC | Wayne Lee Wilson | — | (805) 703 1744 | GC, remodel, ADU | Santa Margarita · San Luis Obispo County | — | — |
| The Tile Guy | The Tile Guy | paul@tile-guy.com | (805) 296 8751 | Other | Santa Margarita · San Luis Obispo County | — | — |
| The Tileguys | Allen David Mendez | — | (805) 704 0799 | Other | San Luis Obispo · San Luis Obispo County | — | — |
| The Trusted Brush | The Trusted Brush | — | (978) 618 7345 | Windows, patio, painters | Arroyo Grande · San Luis Obispo County | — | — |
| The Village Handyman | The Village Handyman | — | (805) 489 6772 | GC, remodel, ADU | Oceano · San Luis Obispo County | — | — |
| The Wire King | The Wire King | wireking@wireking.com | (805) 400 4319 | Electricians | Paso Robles · San Luis Obispo County | — | — |
| This N That Handyman Service | Michael Edward Payne | — | (805) 471 2493 | Windows, patio, painters | Pismo Beach · San Luis Obispo County | — | — |
| Thoma Electric | William Alan Thoma | — | (805) 543 3850 | Electricians | San Luis Obispo · San Luis Obispo County | — | — |
| Thomas Baer Construction | Thomas Andrew Baer | — | (805) 238 6467 | Electricians | Paso Robles · San Luis Obispo County | — | — |
| Thomas Boyd | Thomas Boyd | — | (805) 234 2551 | GC, remodel, ADU | Arroyo Grande · San Luis Obispo County | — | — |
| Thomas Caffrey Electric | Thomas Joseph Caffrey | — | (805) 235 5437 | Electricians | San Luis Obispo · San Luis Obispo County | — | — |
| Thomas E Trujillo | Thomas E Trujillo | — | (805) 772 4881 | Windows, patio, painters | Morro Bay · San Luis Obispo County | — | — |
| Thomas Edwards | Thomas Edwards | — | (805) 674 3855 | GC, remodel, ADU | Morro Bay · San Luis Obispo County | — | — |
| Thomas J Benno | Thomas J Benno | — | (562) 305 4863 | Electricians | Morro Bay · San Luis Obispo County | — | — |
| Thomas J Dwight Construction | Thomas John Dwight | — | (805) 904 4911 | GC, remodel, ADU | Arroyo Grande · San Luis Obispo County | — | — |
| Thomas Leonard Construction | Stephen John Bravante | — | (805) 610 9345 | GC, remodel, ADU | Atascadero · San Luis Obispo County | — | — |
| Thomas R Gomez Construction | Thomas Robert Gomez | — | (805) 536 1207 | GC, remodel, ADU | Paso Robles · San Luis Obispo County | — | — |
| Thomas R Neyens | Thomas R Neyens | — | (805) 888 9515 | GC, remodel, ADU | Arroyo Grande · San Luis Obispo County | — | — |
| Thor Holland Builder | Thor Holland Builder | — | (805) 235 3099 | GC, remodel, ADU | Cambria · San Luis Obispo County | — | — |
| Thoresen Welding Services | Daniel Robert Thoresen | — | (805) 704 8894 | Other | Morro Bay · San Luis Obispo County | — | — |
| Thorp Drywall | Thorp Drywall | — | (805) 528 5010 | Other | Los Osos · San Luis Obispo County | — | — |