| Ackley Engineering | Ackley Engineering | — | (530) 249 4052 | Other | Quincy · Plumas County | — | — |
| Alpine Fire Services | Edward Ilmars Mitrevics | — | (530) 832 4324 | Other | Portola · Plumas County | — | — |
| Amaral Plumbing | Amaral Plumbing | — | (530) 927 7656 | Other | Portola · Plumas County | — | — |
| Avery's Excavation | Avery Colton Dyrr | — | (530) 394 8391 | Other | Quincy · Plumas County | — | — |
| Badger Asphalt | Badger Asphalt | — | (530) 375 7602 | Other | Greenville · Plumas County | — | — |
| Bertocchi Masonry Contractors | Bertocchi William | — | (530) 283 3378 | Other | Quincy · Plumas County | — | — |
| Brad Nisbett Tile | Brad Nisbett Tile | — | (925) 270 9257 | Other | Portola · Plumas County | — | — |
| Brennan's Tile | Brennan's Tile | — | (530) 249 0964 | Other | Graeagle · Plumas County | — | — |
| Butterfly Plumbing & Pump Co | Jeff C Ellermeyer | — | (530) 616 0848 | Other | Quincy · Plumas County | — | — |
| Caldeira Woodworks | Caldeira Woodworks | — | (707) 671 3249 | Other | Quincy · Plumas County | — | — |
| Carmichael & Hovland A Partnership | Randy Alan Hovland | — | (530) 375 0914 | Other | Greenville · Plumas County | — | — |
| Clinton Eugene Fuller Plumbing | Clinton Eugene Fuller Plumbing | — | (530) 258 6830 | Other | Chester · Plumas County | — | — |
| Coronado Welding Services INC | Jose Cristino Coronado | — | (530) 563 8035 | Other | Portola · Plumas County | — | — |
| Crescent Underwater General Engineering Contractors | Ronald Eugene Jr Null | — | (530) 816 0019 | Other | Crescent Mills · Plumas County | — | — |
| Cretecraft Concrete Construction | Dixie Lee Higgins | — | (530) 832 4226 | Other | Portola · Plumas County | — | — |
| Crosby Paving | Crosby Paving | — | (530) 284 1474 | Other | Canyon Dam · Plumas County | — | — |
| Crystal Springs Plumbing Co | Gary Robert Lachine | info@crystalspringsplumbing.com | (650) 207 0902 | Other | Clio · Plumas County | — | — |
| D N A Concrete | Aaron Edward Marro | — | (530) 258 6503 | Other | Chester · Plumas County | — | — |
| Diamond Stone Masonry | Diamond Stone Masonry | — | (916) 296 7115 | Other | Portola · Plumas County | — | — |
| Dickens Drilling | Benjamin Samuel Grant | — | (530) 283 4844 | Other | Quincy · Plumas County | — | — |
| Dig It Construction INC | Caleb Edward Holland | — | (530) 258 3306 | Other | Chester · Plumas County | — | — |
| Dirt Works | Dirt Works | — | (530) 927 7855 | Other | Greenville · Plumas County | — | — |
| Dowden Foundation & Concrete | Dowden Foundation & Concrete | — | (530) 816 0285 | Other | Chester · Plumas County | — | — |
| Echo Mountain Stone | Echo Mountain Stone | — | (530) 375 6501 | Other | Greenville · Plumas County | — | — |
| Ed Bishop | Ed Bishop | — | (530) 228 4714 | Other | Chester · Plumas County | — | — |
| Engel Construction | Jeffrey Al Engel | — | (530) 836 0257 | Other | Graeagle · Plumas County | — | — |
| Folchi Logging And Construction INC | Daryl E Folchi | — | (530) 832 5214 | Other | Portola · Plumas County | — | — |
| Gage Wade Flooring | Gage Wade Flooring | — | (530) 258 3778 | Other | Chester · Plumas County | — | — |
| Germann Engineering | Germann Engineering | — | (530) 640 3165 | Other | Quincy · Plumas County | — | — |
| Gibford Excavating | Gibford Excavating | — | (530) 277 5553 | Other | Beckwourth · Plumas County | — | — |
| Haket Concrete | Haket Concrete | — | (530) 927 9285 | Other | Quincy · Plumas County | — | — |
| Heskin Woodworks | Heskin Woodworks | — | (480) 220 5968 | Other | Portola · Plumas County | — | — |
| High Country Fence INC | Daniel Lee Gooder | — | (916) 955 6286 | Other | Portola · Plumas County | — | — |
| J W Harris Plumbing And Rooter | Jonathan Wayne Jr Harris | — | (530) 394 0165 | Other | Portola · Plumas County | — | — |
| Jensen Plumbing | Jensen Plumbing | — | (530) 816 0839 | Other | Chester · Plumas County | — | — |
| Jeremy R Deocampo Pump & Well Service LLC | Jeremy Robert Deocampo | — | (530) 283 1302 | Other | Quincy · Plumas County | — | — |
| John Kuipers Plumbing | John Kuipers Plumbing | — | (530) 283 3119 | Other | Meadow Valley · Plumas County | — | — |
| Kunsman Fence Co | Thomas Wayland Jr Burnett | — | (530) 249 2887 | Other | Portola · Plumas County | — | — |
| Lake Almanor Drywall | Lake Almanor Drywall | — | (530) 258 4169 | Other | Chester · Plumas County | — | — |
| Lambert Construction INC | Norman Duane Lambert | proteam@mopro.com | (530) 394 7499 | Other | Quincy · Plumas County | — | — |