| Tim The Tree Man INC | Timothy Patrick Murphy | — | (530) 265 6202 | Tree | Nevada City · Nevada County | — | — |
| Timberline Construction | Christian Edwards | — | (530) 582 4153 | GC, remodel, ADU | Truckee · Nevada County | — | — |
| Timberline Custom Homes | Timberline Custom Homes | — | (530) 392 5723 | GC, remodel, ADU | Rough And Ready · Nevada County | — | — |
| Timmy D Construction | Timothy James Demartini | — | (530) 798 3325 | GC, remodel, ADU | Nevada City · Nevada County | — | — |
| Tinder Lovin' Tree Care | Tinder Lovin' Tree Care | — | (843) 609 6620 | Other | Truckee · Nevada County | — | — |
| Tinkers | Robert Philip Raber | — | (781) 281-9475 | Other | Truckee · Nevada County | — | — |
| Tinsley Construction | David Kennedy Tinsley | — | (530) 448 9178 | GC, remodel, ADU | Truckee · Nevada County | — | — |
| Tintle INC | Patricia Ann Tintle | — | (530) 265 6972 | GC, remodel, ADU | Nevada City · Nevada County | — | — |
| Tkk LLC | Timothy Thomas Kemper | — | (925) 872 4700 | Other | Grass Valley · Nevada County | — | — |
| Todd Bacon | Todd Bacon | — | (530) 263 1780 | GC, remodel, ADU | Nevada City · Nevada County | — | — |
| Tom Beebe Construction INC | Thomas Kirk Beebe | — | (530) 386 4976 | GC, remodel, ADU | Truckee · Nevada County | — | — |
| Tom Brown Construction | Tom Lewis Brown | — | (530) 401 4748 | GC, remodel, ADU | Grass Valley · Nevada County | — | — |
| Tom Jackson Cabinet Co INC | Thomas Richard Jackson | — | (530) 362 1198 | Other | Grass Valley · Nevada County | — | — |
| Tony Labosky Construction | Anthony George Labosky | — | (916) 343 3631 | GC, remodel, ADU | Penn Valley · Nevada County | — | — |
| Tony Unger Construction | Anthony Elmar Unger | — | (530) 277 5183 | GC, remodel, ADU | Rough And Ready · Nevada County | — | — |
| Top Dog Timber INC | Rosellen Ralph | — | (530) 582 9331 | Tree | Truckee · Nevada County | — | — |
| Top Notch Construction | Jim William Ruckman | — | (530) 478 9549 | GC, remodel, ADU | Rough And Ready · Nevada County | — | — |
| Top Repair | Top Repair | — | (707) 486 6962 | Other | Grass Valley · Nevada County | — | — |
| Torreyson Electric | Christopher James Torreyson | — | (530) 906 0211 | Electricians | Grass Valley · Nevada County | — | — |
| Touch Of Nature Landscaping | Touch Of Nature Landscaping | — | (530) 575 6675 | Windows, patio, painters | Nevada City · Nevada County | — | — |
| Tower Painters INC | Jefferson Clark Sneed | — | (530) 210 1056 | Windows, patio, painters | Soda Springs · Nevada County | — | — |
| Town & Country Flooring | Town & Country Flooring | — | (530) 582 4380 | Other | Truckee · Nevada County | — | — |
| Toyon Construction | Jason Lee Huggins | — | (530) 488 0518 | GC, remodel, ADU | Grass Valley · Nevada County | — | — |
| Trade Mark Floors | Trade Mark Floors | — | (530) 388 0921 | Other | Grass Valley · Nevada County | — | — |
| Tradecraft Construction | James Michael Neumann | — | (530) 307 2014 | GC, remodel, ADU | Truckee · Nevada County | — | — |
| Trailside Landscaping INC | Owen Matthew May | contact@sansoxygen.com | (530) 414 8700 | Windows, patio, painters | Truckee · Nevada County | — | — |
| Trattner & Associates Construction INC | Jered Joseph Trattner | — | (530) 913 1408 | GC, remodel, ADU | Nevada City · Nevada County | — | — |
| Tree Walker INC | Kyle Charles Zuccaro | tree.walker2020@gmail.com | (530) 559 0272 | Other | Grass Valley · Nevada County | — | — |
| Treeline Construction INC | Brian Phillip Ketron | — | (530) 648 3986 | GC, remodel, ADU | Grass Valley · Nevada County | — | — |
| Tremewan Property Improvement | Christopher Ryan Tremewan | — | (530) 263 2780 | Other | Grass Valley · Nevada County | — | — |
| Trenton Kistle Flooring | Trenton Kistle Flooring | — | (530) 615 8120 | Other | Grass Valley · Nevada County | — | — |
| Trever Hill Construction | Trever David Hill | — | (530) 913 4012 | GC, remodel, ADU | Grass Valley · Nevada County | — | — |
| Tri-son Electric | Denis Edward Hughes | — | (530) 615 7667 | Electricians | Grass Valley · Nevada County | — | — |
| Trinity Builders | Trinity Builders | — | (530) 277 6556 | GC, remodel, ADU | Penn Valley · Nevada County | — | — |
| Triple P Masonry | Triple P Masonry | juanpablo_armadillo@yahoo.com | (530) 386 7059 | Other | Truckee · Nevada County | — | — |
| Troy Corliss | Troy Corliss | — | (530) 902 0322 | GC, remodel, ADU | Truckee · Nevada County | — | — |
| Troy Plumbing And Backflow | Justin Troy Parrish | — | (530) 214 6315 | Other | Truckee · Nevada County | — | — |
| Tru - Trim Millworks INC | Craig Alfred Pagano | — | (530) 268 1021 | Other | Grass Valley · Nevada County | — | — |
| Truckee Donner Property Management INC | Stewart Patrick Campbell | — | (530) 807 7679 | GC, remodel, ADU | Truckee · Nevada County | — | — |
| Truckee Fence Company | Jimmy Bryan Russell | jimmy@truckeefence.com | (530) 320 6164 | Other | Truckee · Nevada County | — | — |