| 2 Bros And A Hose | Brian Keith Reilly | — | (415) 940 1900 | Other | Grass Valley · Nevada County | — | — |
| 49er Electric | Grahame Kenneth Tadman | info@49erelectric.com | (530) 913 6832 | Electricians | Nevada City · Nevada County | — | — |
| 49er Electric | Daron Kenneth Tadman | info@49erelectric.com | (530) 308 4660 | Electricians | Truckee · Nevada County | — | — |
| 49er Plumbing & Drain | Dillon Matthew Gunnels | — | (530) 271 1270 | Other | Grass Valley · Nevada County | — | — |
| 49er Water Services | Charles Thomas Burr | — | (530) 559 8089 | Electricians | Nevada City · Nevada County | — | — |
| 530 Builders | Sam Robert Bueckert | — | (530) 205 8083 | GC, remodel, ADU | Truckee · Nevada County | — | — |
| 601 Metals | 601 Metals | kelly.crawford@solidcounsel.com | (530) 412 1344 | Other | Truckee · Nevada County | — | — |
| 916 Roofing LLC | Lynette Rae Stalick | — | (916) 460 2475 | Other roofers | Grass Valley · Nevada County | — | — |
| A & A Air Conditioning Heating & Sheet Metal | Lawrence Joaquin Aguilar | — | (530) 273 1301 | HVAC | Grass Valley · 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 B C Constructors INC | Antonio Carranza Orozco | — | (530) 681 0331 | GC, remodel, ADU | Penn Valley · Nevada County | — | — |
| A B C Masonry & Hardscapes | Michael Ronald Jiannino | — | (530) 273 7228 | GC, remodel, ADU | Nevada City · Nevada County | — | — |
| A C E Solutions | A C E Solutions | — | (530) 308 9698 | GC, remodel, ADU | Truckee · Nevada County | — | — |
| A C Electric | Steven Allan Kane | — | (530) 412 0421 | Electricians | Truckee · Nevada County | — | — |
| A D Management | A D Management | — | (530) 263 8240 | GC, remodel, ADU | Grass Valley · Nevada County | — | — |
| A F Construction | Adam Clay Fischer | impallari@gmail.com | (530) 308 5585 | GC, remodel, ADU | Truckee · Nevada County | — | — |
| A F S Engineering | A F S Engineering | afs@alhq.com.my | (530) 913 9351 | Other | Grass Valley · Nevada County | — | — |
| A Nicer Finish Painting | A Nicer Finish Painting | — | (530) 264 6982 | Windows, patio, painters | Cedar Ridge · Nevada County | — | — |
| A Plus Services LLC DBA A Plus Trenching | Taylor Matthew Alcala | — | (530) 205 8252 | Other | Grass Valley · Nevada County | — | — |
| A Prescott Construction | Anthony Vincent Prescott | — | (530) 205 8498 | GC, remodel, ADU | Penn Valley · Nevada County | — | — |
| A Rooter-man Plumbing Sewer & Drain Cleaning Service INC | Ralph Anthony Rowe | — | (530) 582 1213 | Other | Truckee · Nevada County | — | — |
| A T Construction | Larry Andrew Ii Trihub | — | (530) 362 0178 | GC, remodel, ADU | Grass Valley · Nevada County | — | — |
| A Thyme To Plant INC | Juan Manuel Munoz | — | (530) 548 5029 | Windows, patio, painters | Norden · Nevada County | — | — |
| A V Electric | Anthony David Valladao | — | (530) 263 4885 | Electricians | Grass Valley · Nevada County | — | — |
| A-1 Stoves Chimney Sweep & Service | Franklin Lee Armstrong | — | (530) 477 1979 | Other | Grass Valley · Nevada County | — | — |
| Aaron Anthony INC | Aaron Anthony Brown | — | (530) 955 1180 | GC, remodel, ADU | Grass Valley · Nevada County | — | — |
| Aaron Crew Construction | Crew Aaron | — | (530) 798 0013 | GC, remodel, ADU | Grass Valley · Nevada County | — | — |
| Aaron L Jensen Construction | Aaron Lee Jensen | — | (530) 210 0362 | GC, remodel, ADU | Truckee · Nevada County | — | — |
| Aaron's Electric | Aaron Mark Echols | — | (530) 277 9596 | Electricians | Nevada City · Nevada County | — | — |
| Aaron's Precise Painting | Aaron's Precise Painting | aaronsprecisepainting@gmail.com | (530) 559 1505 | Windows, patio, painters | Penn Valley · Nevada County | — | — |
| Abalone Mountain Landscapes INC | Adam Warren Kistner | — | (530) 205 0725 | Windows, patio, painters | Nevada City · 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 | — | — |
| Accent Custom Builders | Bob Joseph Haley | — | (530) 386 3252 | GC, remodel, ADU | Truckee · Nevada County | — | — |
| Accurate Painting & Staining INC | Susie Ann Simonpietri | — | (530) 448 6151 | Windows, patio, painters | Truckee · Nevada County | — | — |
| Acree Construction | James Robert Acree | — | (209) 402 7251 | GC, remodel, ADU | Grass Valley · Nevada County | — | — |
| Acton Arboriculture INC | Zeno Ata Acton | — | (530) 272 8224 | Windows, patio, painters | Grass Valley · Nevada County | — | — |