| Torgys Excavation INC | Kory Richard Torgerson | — | (805) 391 3062 | Other | Paso Robles · San Luis Obispo County | — | — |
| Torrey Building | Torrey Building | becca@pueringerinvestments.com | (831) 466 6473 | GC, remodel, ADU | Atascadero · San Luis Obispo County | — | — |
| Torrey Concrete Construction | Nathan Everett Torrey | — | (805) 980 8463 | Other | Templeton · San Luis Obispo County | — | — |
| Toste Construction INC | Anthony Eugene Toste | eben@eyebytes.com | (805) 473 0884 | GC, remodel, ADU | Arroyo Grande · San Luis Obispo County | — | — |
| Toste Grading & Paving INC | Deanna Chyrel Toste | — | (805) 489 1791 | Other | Arroyo Grande · San Luis Obispo County | — | — |
| Total Plumbing Heating & Air INC | Jose Aristeo Gutierrez | — | (805) 544 4141 | HVAC | San Luis Obispo · San Luis Obispo County | — | — |
| Totally Floored Hardwood Surfaces | Totally Floored Hardwood Surfaces | — | (805) 340 3240 | Other | Grover Beach · San Luis Obispo County | — | — |
| Tough Automation | Tough Automation | — | (805) 400 9015 | Electricians | Atascadero · San Luis Obispo County | — | — |
| Town & Country Painting | Town & Country Painting | — | (805) 674 3097 | Windows, patio, painters | Atascadero · San Luis Obispo County | — | — |
| Town And Country Fencing INC | Sarah Anne Rust | — | (805) 458 3475 | Other | San Luis Obispo · San Luis Obispo County | — | — |
| Townsend Construction | Robert Layton Iii Townsend | — | (805) 680 2263 | GC, remodel, ADU | Paso Robles · San Luis Obispo County | — | — |
| Trade Pro Builders | Trade Pro Builders | dave@tradeprobuilders.com | (805) 441 5629 | GC, remodel, ADU | Paso Robles · San Luis Obispo County | — | — |
| Traditional Plumbing | Traditional Plumbing | — | (805) 674 7818 | Other | Paso Robles · San Luis Obispo County | — | — |
| Trans Landscape And Construction | Danny Hung Hy Tran | — | (805) 574 0008 | GC, remodel, ADU | San Luis Obispo · San Luis Obispo County | — | — |
| Trapezoid Construction | Stephen Ray Gonzales | — | (805) 440 1332 | Other | San Luis Obispo · San Luis Obispo County | — | — |
| Travis Brett Robson | Travis Brett Robson | — | (805) 441 9699 | GC, remodel, ADU | Morro Bay · San Luis Obispo County | — | — |
| Travis Electric | Claude Taylor Jr Bell | — | (805) 704 9670 | Electricians | Los Osos · San Luis Obispo County | — | — |
| Travis Fuentez | Travis Fuentez | — | (805) 573 0401 | GC, remodel, ADU | Arroyo Grande · San Luis Obispo County | — | — |
| Travis Leage Construction | Travis Kyle Leage | — | (805) 748 3145 | GC, remodel, ADU | Morro Bay · San Luis Obispo County | — | — |
| Travis Painting Services | Robert Lloyd Jr Travis | — | (805) 440 9252 | Windows, patio, painters | San Luis Obispo · San Luis Obispo County | — | — |
| Travis Rushing Construction INC | Travis Lee Rushing | — | (805) 710 4615 | GC, remodel, ADU | San Luis Obispo · San Luis Obispo County | — | — |
| Tree Line Construction | Daniel Austin Martinez | — | (805) 801 6668 | GC, remodel, ADU | Atascadero · San Luis Obispo County | — | — |
| Treichler Construction | Matthew Robert Treichler | — | (805) 748 5138 | GC, remodel, ADU | San Luis Obispo · San Luis Obispo County | — | — |
| Trevor Allred Construction | Trevor Noel Allred | — | (805) 459 7021 | GC, remodel, ADU | Morro Bay · San Luis Obispo County | — | — |
| Trevor Hamblin Construction | Trevor Forrest Hamblin | — | (805) 801 9431 | GC, remodel, ADU | Los Osos · San Luis Obispo County | — | — |
| Triad Property Management | Triad Property Management | — | (805) 439-3529 | Property managers | San Luis Obispo · San Luis Obispo County | — | — |
| Tricamo Construction INC | John Salvatore Tricamo | — | (805) 322 4411 | GC, remodel, ADU | San Luis Obispo · San Luis Obispo County | — | — |
| Tried And True Plumbing | Tried And True Plumbing | — | (805) 202 8568 | Other | Oceano · San Luis Obispo County | — | — |
| Trinity Tile & Granite | Trinity Tile & Granite | — | (805) 709 1257 | Other | Nipomo · San Luis Obispo County | — | — |
| Triple T Tile | Triple T Tile | — | (805) 550 6035 | Other | Morro Bay · San Luis Obispo County | — | — |
| Trm Landscape | Trm Landscape | — | (805) 801 3007 | Windows, patio, painters | Los Osos · San Luis Obispo County | — | — |
| Troutner Plumbing | Troutner Plumbing | troutnerplumbing@yahoo.com | (805) 234 3937 | Other | San Luis Obispo · San Luis Obispo County | — | — |
| Troy Cantrell Construction | Troy Leon Cantrell | — | (805) 221 5317 | GC, remodel, ADU | Paso Robles · San Luis Obispo County | — | — |
| Troy Construction Incorporated | Robert Wylie Iii Troy | — | (805) 286 8555 | Other | Paso Robles · San Luis Obispo County | — | — |
| True Legacy Construction INC | Reyes Pedro Salazar | — | (805) 878 6189 | GC, remodel, ADU | Nipomo · San Luis Obispo County | — | — |
| Truecraft Design + Build LLC | Michael David Degregorio | — | (805) 952 9449 | GC, remodel, ADU | Los Osos · San Luis Obispo County | — | — |
| Truelift Elevator | Perry Keith Rennie | — | (805) 712 8501 | Other | Paso Robles · San Luis Obispo County | — | — |
| Tsg Landscape Management LLC | Aaron Jonathon Ashenfelder | — | (805) 720 6533 | Windows, patio, painters | San Luis Obispo · San Luis Obispo County | — | — |
| Tustin's Plumbing | Tustin's Plumbing | — | (805) 237 0500 | Other | Paso Robles · San Luis Obispo County | — | — |
| Tutt Tree Crane And Service | Michael Eugene Tutt | — | (805) 235 3300 | Other | Los Osos · San Luis Obispo County | — | — |