| A I G Painting | A I G Painting | — | (530) 979 0550 | GC, remodel, ADU | Arbuckle · Colusa County | — | — |
| Abs Builders INC | Amy Marie Gwinnup | — | (530) 458 2299 | GC, remodel, ADU | Colusa · Colusa County | — | — |
| American Carports INC | American Carports INC | — | (530) 763-0051 | GC, remodel, ADU | Colusa · Colusa County | — | — |
| Charles M Fusaro Construction | Donna Lynn Fusaro | — | (530) 635 3625 | GC, remodel, ADU | Colusa · Colusa County | — | — |
| Clearcast Concrete & Stone Products | Clearcast Concrete & Stone Products | — | (530) 458-1115 | GC, remodel, ADU | Colusa · Colusa County | — | — |
| Climate Duct Solutions | Climate Duct Solutions | — | (530) 551-0462 | GC, remodel, ADU | Colusa · Colusa County | — | — |
| Colusa Industrial Properties | Colusa Industrial Properties | — | (530) 458-2118 | GC, remodel, ADU | Colusa · Colusa County | — | — |
| Cotrone's Mechanical Services | Cotrone's Mechanical Services | — | (530) 458-8037 | GC, remodel, ADU | Colusa · Colusa County | — | — |
| Craig Hill | Craig Hill | — | (530) 701 2849 | GC, remodel, ADU | Colusa · Colusa County | — | — |
| Ehrke Construction | Valerie Elaine Ehrke | — | (530) 681 1218 | GC, remodel, ADU | Arbuckle · Colusa County | — | — |
| Ens Construction Custom Handyman Service | Ens Construction Custom Handyman Service | — | (916) 792-6745 | GC, remodel, ADU | Colusa · Colusa County | — | — |
| Front Row Builders INC | Ronald Joe Moore | — | (415) 206 9100 | GC, remodel, ADU | Colusa · Colusa County | — | — |
| Fusaro Family Construction | Charles Martin Fusaro | — | (530) 635 3625 | GC, remodel, ADU | Colusa · Colusa County | — | — |
| Hardwick Construction LLC | Sherman Bruce Jr Hardwick | — | (530) 701 4051 | GC, remodel, ADU | Colusa · Colusa County | — | — |
| Hector Cardenas Construction | Cardenas Hector | — | (530) 570 0755 | GC, remodel, ADU | Williams · Colusa County | — | — |
| Kevin Fulcher Remodeling | Kevin Fulcher Remodeling | — | (530) 870 2684 | GC, remodel, ADU | Colusa · Colusa County | — | — |
| Lazaro Construction | Lazaro Construction | — | (530) 473-2718 | GC, remodel, ADU | Williams · Colusa County | — | — |
| Luoma Construction | Charles Ray Luoma | — | (530) 632 0237 | GC, remodel, ADU | Colusa · Colusa County | — | — |
| Matt Simmons Construction INC | Matthew Ronald Simmons | mscinc99@gmail.com | (530) 521 0672 | GC, remodel, ADU | Colusa · Colusa County | — | — |
| Mike Shahan Construction | Michael Allen Shahan | — | (530) 681 1191 | GC, remodel, ADU | Arbuckle · Colusa County | — | — |
| R R Construction | Raymond Jr Randle | — | (510) 917 5815 | GC, remodel, ADU | Arbuckle · Colusa County | — | — |
| Roger Hubbart Construction | Roger Dwayne Hubbart | — | (530) 844 0789 | GC, remodel, ADU | Colusa · Colusa County | — | — |
| S&j Construction Services Corp DBA Steve Knowles Construction | Jane Frances Smart | — | (707) 249 9918 | GC, remodel, ADU | Arbuckle · Colusa County | — | — |
| Stassi Carpentry | Stassi Carpentry | — | (530) 521 9008 | GC, remodel, ADU | Colusa · Colusa County | — | — |
| Steven E Langlois Company The | Steven Edward Langlois | — | (530) 308 2331 | GC, remodel, ADU | Arbuckle · Colusa County | — | — |
| Sucevich Construction | Dana Lance Sucevich | — | (530) 867 1069 | GC, remodel, ADU | Arbuckle · Colusa County | — | — |
| Timberllee | Timberllee | hello@timberllee.com | (530) 492-0262 | GC, remodel, ADU | Colusa · Colusa County | — | — |
| Vaca Building LLC | John Vaca | — | (530) 383 3086 | GC, remodel, ADU | Colusa · Colusa County | — | — |
| Valley Air | Valley Air | — | (530) 458-5181 | GC, remodel, ADU | Colusa · Colusa County | — | — |
| Valley Restoration And Construction INC | Jason August Bremmer | — | (530) 790 7867 | GC, remodel, ADU | Arbuckle · Colusa County | — | — |
| Vedo Construction | Scott Francis Vedo | — | (530) 415 1672 | GC, remodel, ADU | Colusa · Colusa County | — | — |
| Walkup Construction | Larry Leroy Walkup | — | (530) 518 1879 | GC, remodel, ADU | Stonyford · Colusa County | — | — |
| Western Ready Mix Concrete INC | Western Ready Mix Concrete INC | — | (530) 458-7781 | GC, remodel, ADU | Colusa · Colusa County | — | — |
| Weston Buildings INC | Kelly Wade Lewis | — | (530) 473 5696 | GC, remodel, ADU | Williams · Colusa County | — | — |
| Wright Construction | Paul Timothy Wright | — | (530) 632 9801 | GC, remodel, ADU | Williams · Colusa County | — | — |
| Zuffanelli Construction | Richard Francesco Zuffanelli | — | (831) 247 2298 | GC, remodel, ADU | Stonyford · Colusa County | — | — |