| 2 Bros And A Hose | Brian Keith Reilly | — | (415) 940 1900 | Other | Grass Valley · Nevada County | — | — |
| 49er Plumbing & Drain | Dillon Matthew Gunnels | — | (530) 271 1270 | Other | Grass Valley · Nevada County | — | — |
| 601 Metals | 601 Metals | kelly.crawford@solidcounsel.com | (530) 412 1344 | Other | Truckee · Nevada County | — | — |
| A & A Construction | Charles Andrew Adams | — | (530) 277 3768 | Other | Penn Valley · Nevada County | — | — |
| A - 1 Testing / Maintenance INC | Matthew Norman Wied | — | (530) 448 4190 | Other | Truckee · Nevada County | — | — |
| A - 1 Testing / Site Services | Nathan Mark Ruppert | — | (530) 448 4190 | Other | Truckee · Nevada County | — | — |
| A F S Engineering | A F S Engineering | afs@alhq.com.my | (530) 913 9351 | Other | Grass Valley · Nevada County | — | — |
| A Plus Services LLC DBA A Plus Trenching | Taylor Matthew Alcala | — | (530) 205 8252 | Other | Grass Valley · Nevada County | — | — |
| A Rooter-man Plumbing Sewer & Drain Cleaning Service INC | Ralph Anthony Rowe | — | (530) 582 1213 | Other | Truckee · Nevada County | — | — |
| A-1 Stoves Chimney Sweep & Service | Franklin Lee Armstrong | — | (530) 477 1979 | Other | Grass Valley · Nevada County | — | — |
| Abercrombie & Company | Chad Robert Graybill | — | (530) 432 2499 | Other | Grass Valley · Nevada County | — | — |
| Above And Beyond Flooring | Above And Beyond Flooring | — | (530) 448 1549 | Other | Truckee · Nevada County | — | — |
| Absolute Communication Solutions | Richard Quoyah Teehee | — | (530) 271 0332 | Other | Grass Valley · Nevada County | — | — |
| Addington Tile Works | Addington Tile Works | — | (530) 312 8684 | Other | Grass Valley · Nevada County | — | — |
| Advanced Asphalt | Jerry Todd Bellon | — | (530) 582 0800 | Other | Truckee · Nevada County | — | — |
| Advanced Mechanical | Advanced Mechanical | — | (530) 263 2520 | Other | Grass Valley · Nevada County | — | — |
| Advanced Plumbing | Advanced Plumbing | — | (530) 557 5450 | Other | Nevada City · Nevada County | — | — |
| Advantage Garage Door Co | Ross Martin Hermann | — | (530) 274 3667 | Other | Grass Valley · Nevada County | — | — |
| Advantage Gutter Systems | Advantage Gutter Systems | — | (530) 277 8555 | Other | Grass Valley · Nevada County | — | — |
| Al Pombo INC | Alfred James Pombo | office.alpombo@gmail.com | (530) 587 4112 | Other | Truckee · Nevada County | — | — |
| Alderman Drywall | Alderman Drywall | — | (530) 913 6299 | Other | Nevada City · Nevada County | — | — |
| All Good Plumbing And Drains | Brian Keith Reilly | — | (530) 264 7474 | Other | Nevada City · Nevada County | — | — |
| All Out Pergolas | Adam Guy Ermolenko | — | (279) 244 8251 | Other | Grass Valley · Nevada County | — | — |
| All Phase Excavating Service INC | Vincent Lloyd Cheney | — | (707) 974 3266 | Other | Penn Valley · Nevada County | — | — |
| Alpha And Omega Drywall | Alpha And Omega Drywall | — | (530) 308 0679 | Other | Truckee · Nevada County | — | — |
| Alpine Concrete And Pumping INC | Tyson Andrew Valcalda | — | (530) 401 4570 | Other | Truckee · Nevada County | — | — |
| Alpine Paving | Ramon Martinez | — | (530) 536 6291 | Other | Truckee · Nevada County | — | — |
| Alpine Quality Drywall INC | Ramirez Roberto Castillo | — | (775) 220 3656 | Other | Truckee · Nevada County | — | — |
| Alpine Stove Tahoe LLC | Craig Morris | hello@alpinestovetahoe.com | (530) 582 4985 | Other | Truckee · Nevada County | — | — |
| Alpine Technical Services INC | Daniel Jon Engler | dengler@alpinetechnicalservices.co | (530) 448 1650 | Other | Truckee · Nevada County | — | — |
| Am-x Construction & Excavation INC | Randolph Joseph Mezger | — | (530) 587 2878 | Other | Truckee · Nevada County | — | — |
| American Concrete Designs | American Concrete Designs | — | (530) 913 8781 | Other | Grass Valley · Nevada County | — | — |
| Americas Masonry | Chaim Yoel Shternhel | — | (916) 833 2959 | Other | Grass Valley · Nevada County | — | — |
| Andersen Drywall | Andersen Drywall | — | (530) 575 1905 | Other | Grass Valley · Nevada County | — | — |
| Andrew's Paving & Excavating INC | Andrew Brian Peckham | — | (530) 268 1975 | Other | Grass Valley · Nevada County | — | — |
| Articulate Tile Works | Articulate Tile Works | — | (530) 559 2885 | Other | Nevada City · Nevada County | — | — |
| Artistic Tile Company | Virgil Harry Ines | — | (530) 274 9704 | Other | Grass Valley · Nevada County | — | — |
| Aspen Wood Flooring | Aspen Wood Flooring | — | (530) 414 1039 | Other | Truckee · Nevada County | — | — |
| Asthetic Tile Design | Asthetic Tile Design | — | (530) 412 0137 | Other | Nevada City · Nevada County | — | — |
| Avantgarde Home Systems | Avantgarde Home Systems | — | (510) 693 1998 | Other | Grass Valley · Nevada County | — | — |