| Lebbert Company | Rodney Alan Lebbert | — | (530) 362 0373 | Other | Penn Valley · Nevada County | — | — |
| Lee Miller Construction | Miller Lee | eben@eyebytes.com | (530) 200 7560 | GC, remodel, ADU | Grass Valley · Nevada County | — | — |
| Leejon Michael Kauk DBA Lee Kauk Construction | Leejon Michael Kauk | — | (530) 559 1751 | GC, remodel, ADU | Penn Valley · Nevada County | — | — |
| Legacy Homes | Bruce Dawson Horne | — | (530) 906 0683 | GC, remodel, ADU | Grass Valley · Nevada County | — | — |
| Lehman Construction | Larry Scott Lehman | contact@lehman-construction.com | (530) 575 7682 | Other | Grass Valley · Nevada County | — | — |
| Lemma Construction INC | Timothy Andrew Lemma | — | (650) 454 0394 | GC, remodel, ADU | Chicago Park · Nevada County | — | — |
| Lemus Framing | Lemus Framing | — | (530) 414 5569 | Other | Truckee · Nevada County | — | — |
| Len Stevens Construction INC | Leonard David Stevens | — | (530) 432 3643 | GC, remodel, ADU | Penn Valley · Nevada County | — | — |
| Lennon Construction | James Joseph Lennon | — | (530) 448 1829 | GC, remodel, ADU | Truckee · Nevada County | — | — |
| Leo Smith Heating & Cooling | Leo Smith Heating & Cooling | — | (530) 263 0209 | HVAC | Grass Valley · Nevada County | — | — |
| Leslie Electric | Brian Michael Leslie | — | (530) 308 8991 | Electricians | Truckee · Nevada County | — | — |
| Lester M Crowe DBA Serku Construction | Lester Mason Crowe | — | (530) 386 1454 | GC, remodel, ADU | Truckee · Nevada County | — | — |
| Liberty Construction | Daniel Anton Gelso | — | (530) 587 3665 | Other roofers | Truckee · Nevada County | — | — |
| Lightcap Construction | Jesse Hulstedt Lightcap | — | (530) 426 2717 | GC, remodel, ADU | Truckee · Nevada County | — | — |
| Lightning Lock And Key INC | Dean Jon Sperlin | — | (530) 308 6643 | Other | Truckee · Nevada County | — | — |
| Lightning Tree Enterprises LLC | Lonnie James Lasley | — | (530) 798 8054 | Tree | Nevada City · Nevada County | — | — |
| Link's Tree Solutions INC | John David Link | — | (530) 559 4938 | Other | Grass Valley · Nevada County | — | — |
| Lionheart Select Builder | Lionheart Select Builder | — | (831) 220 4414 | GC, remodel, ADU | Grass Valley · Nevada County | — | — |
| Lippincott Construction | Eli Michael Lippincott | eli@lippincottconstruction.com | (530) 401 6023 | GC, remodel, ADU | Grass Valley · Nevada County | — | — |
| Liquid Finishes | Liquid Finishes | — | (530) 575 5072 | Windows, patio, painters | Nevada City · Nevada County | — | — |
| Live Work Design Build | Eric James Zibbel | contact@sansoxygen.com | (419) 308 6354 | Electricians | Grass Valley · Nevada County | — | — |
| Local Boy Construction | Kenneth Anthony La Barbera | — | (530) 368 2531 | GC, remodel, ADU | Grass Valley · Nevada County | — | — |
| Locklin Construction | Christopher David Locklin | — | (916) 547 1105 | GC, remodel, ADU | Washington · Nevada County | — | — |
| Lofton Construction And Electric | Philip Michael Ii Lofton | — | (530) 263 7369 | HVAC | Grass Valley · Nevada County | — | — |
| Logan Edwards DBA Central Elements | Logan Edwards DBA Central Elements | — | (530) 559 4854 | GC, remodel, ADU | Grass Valley · Nevada County | — | — |
| Loggers Unlimited INC | James Forest Curry | — | (530) 477 8211 | Tree | Cedar Ridge · Nevada County | — | — |
| Lopez Excavating INC | Enrique Ramirez Lopez | — | (530) 412 2558 | Other | Truckee · Nevada County | — | — |
| Lopland Painting | Lopland Painting | — | (530) 913 0731 | Windows, patio, painters | Nevada City · Nevada County | — | — |
| Loren Dakin General Contractor | Loren Dakin General Contractor | — | (650) 465 7982 | GC, remodel, ADU | Grass Valley · Nevada County | — | — |
| Lost Sierra Excavation | Troy Douglas Cook | — | (530) 414 1685 | Other | Truckee · Nevada County | — | — |
| LP Earthworks | Landen Gene Parsons | — | (831) 430 6466 | Other | Grass Valley · Nevada County | — | — |
| Luna Construction | Steven Anthony Luna | — | (916) 417 1999 | GC, remodel, ADU | Penn Valley · Nevada County | — | — |
| Luster Tree Pro | Luster Tree Pro | eben@eyebytes.com | (530) 305 6051 | Tree | Grass Valley · Nevada County | — | — |
| Luther Structural Steel Fabrication | Luther Structural Steel Fabrication | — | (530) 205 7174 | Other | Truckee · Nevada County | — | — |
| Lux Energy | Lux Energy | — | (530) 205 3322 | Electricians | Grass Valley · Nevada County | — | — |
| Lynn Heintz Construction | Lynn Roger Heintz | — | (530) 292 3442 | GC, remodel, ADU | North San Juan · Nevada County | — | — |
| M & M Concrete Pumping INC | Johnathen Garrett Murrieta | — | (530) 608 0658 | Other | Truckee · Nevada County | — | — |
| M C U Painting | Castro-urbina Miguel | — | (775) 622 6219 | Windows, patio, painters | Truckee · Nevada County | — | — |
| M D Construction & Consulting Incorporated | Michael Cory Nethersole | — | (530) 550 0814 | GC, remodel, ADU | Truckee · Nevada County | — | — |
| M D Construction And Services | Michael Cory Nethersole | — | (530) 550 0814 | GC, remodel, ADU | Truckee · Nevada County | — | — |