| A J Rankin Construction | Albert James Rankin | — | (925) 206 8303 | GC, remodel, ADU | Trinity Center · Trinity County | — | — |
| Accent Painting | Gerald Nathan Lurtsema | — | (530) 510 5811 | GC, remodel, ADU | Lewiston · Trinity County | — | — |
| Alpine Builders | Alpine Builders | — | (530) 623 3107 | GC, remodel, ADU | Douglas City · Trinity County | — | — |
| Ben Boak Construction | Benjamin David Boak | — | (707) 845 8305 | GC, remodel, ADU | Mad River · Trinity County | — | — |
| Bgreen Construction | Daniel Floyd Klein | — | (530) 782 1946 | GC, remodel, ADU | Mad River · Trinity County | — | — |
| Boorman Construction | Henry Richard Hart Boorman | — | (530) 351 1192 | GC, remodel, ADU | Weaverville · Trinity County | — | — |
| Brian Barrow Construction | Brian Gene Barrow | — | (530) 623 4468 | GC, remodel, ADU | Weaverville · Trinity County | — | — |
| Care Plumbing | Peter Joe Brandauer | — | (707) 499 7914 | GC, remodel, ADU | Mad River · Trinity County | — | — |
| Clayton Cameron Construction | Clayton James Cameron | — | (503) 508 0804 | GC, remodel, ADU | Weaverville · Trinity County | — | — |
| Clint Graham Construction | Clinton Abel Graham | — | (530) 739 3727 | GC, remodel, ADU | Weaverville · Trinity County | — | — |
| Company Construction | Godbe Collin | — | (530) 623 7770 | GC, remodel, ADU | Weaverville · Trinity County | — | — |
| Cornerstone Construction | David Martin Lee | gwebb@cornerstone-construction.com | (832) 259-2520 | GC, remodel, ADU | Weaverville · Trinity County | — | — |
| Edge Construction | Darwin Dean Edge | info@edge-construction.com | (530) 623 3598 | GC, remodel, ADU | Weaverville · Trinity County | — | — |
| Freer's Building Maintenance And Construction | Roger Robert Freer | — | (916) 812 4159 | GC, remodel, ADU | Weaverville · Trinity County | — | — |
| H R C Partners | Marsha Ann Councilman | — | (530) 629 2777 | GC, remodel, ADU | Salyer · Trinity County | — | — |
| Handy Matt | Handy Matt | — | (408) 709 6850 | GC, remodel, ADU | Weaverville · Trinity County | — | — |
| Hilburn Construction INC | Waylon Lucas Hilburn | — | (530) 921 3391 | GC, remodel, ADU | Weaverville · Trinity County | — | — |
| Hodges Construction | John Douglas Hodges | — | (530) 623 7158 | GC, remodel, ADU | Weaverville · Trinity County | — | — |
| Jacob Schott Concrete | Jacob Schott Concrete | — | (530) 739 2858 | GC, remodel, ADU | Lewiston · Trinity County | — | — |
| Jon K Aronson Construction | Jon Kirk Aronson | — | (707) 499 4576 | GC, remodel, ADU | Mad River · Trinity County | — | — |
| K.t.c. | Kim Arthur Thornbury | — | (530) 410 4388 | GC, remodel, ADU | Lewiston · Trinity County | — | — |
| Km Concrete & Construction INC | Kevin Ronald Maelfeyt | — | (530) 739 2952 | GC, remodel, ADU | Weaverville · Trinity County | — | — |
| Lance Graham | Lance Graham | — | (530) 623 0342 | GC, remodel, ADU | Weaverville · Trinity County | — | — |
| Lane Garrett Kennard | Lane Garrett Kennard | — | (707) 672 2076 | GC, remodel, ADU | Trinity Center · Trinity County | — | — |
| Larry Pape | Larry Pape | — | (530) 623 4137 | GC, remodel, ADU | Douglas City · Trinity County | — | — |
| Lars Fredrickson Construction | Lars Eric Jr Fredrickson | — | (530) 623 5199 | GC, remodel, ADU | Douglas City · Trinity County | — | — |
| M & M Commercial & Residential | Bradley James Mc Adam | — | (650) 619 9128 | GC, remodel, ADU | Weaverville · Trinity County | — | — |
| Mc Cullough Const | Mc Cullough Const | — | (530) 356 8380 | GC, remodel, ADU | Douglas City · Trinity County | — | — |
| Mccampbell | Bruce Leroy Mc Campbell | main@mccampbell.com | (408) 489 3528 | GC, remodel, ADU | Weaverville · Trinity County | — | — |
| Molyneux Construction | Jonathan Buckminster Molyneux | — | (530) 515 0447 | GC, remodel, ADU | Weaverville · Trinity County | — | — |
| North Fork Construction | Stephen Edward Lyon | — | (530) 339 5941 | GC, remodel, ADU | Junction City · Trinity County | — | — |
| North State Painting | North State Painting | — | (530) 778 3968 | GC, remodel, ADU | Douglas City · Trinity County | — | — |
| Northern State Steel LLC | Paul Joseph Piker | info@northernstatesteel.com | (530) 623 4033 | GC, remodel, ADU | Weaverville · Trinity County | — | — |
| Paul E Scribner Construction INC | Paul Eugene Scribner | — | (530) 623 4840 | GC, remodel, ADU | Weaverville · Trinity County | — | — |
| Phillips Construction | Shea Monroe Phillips | — | (925) 584 9851 | GC, remodel, ADU | Junction City · Trinity County | — | — |
| Plumbing Plus Construction Services INC | Stuart Alexander Drake | — | (530) 623 9334 | GC, remodel, ADU | Weaverville · Trinity County | — | — |
| Professional Building Consultants | Professional Building Consultants | — | (530) 410 4821 | GC, remodel, ADU | Lewiston · Trinity County | — | — |
| R D Thompson Construction | Robert David Thompson | — | (530) 739 0439 | GC, remodel, ADU | Lewiston · Trinity County | — | — |
| Randy D Spencer | Randy D Spencer | — | (530) 266 3227 | GC, remodel, ADU | Trinity Center · Trinity County | — | — |
| Red Hill Construction | Michael Albert Mc Laughlin | — | (530) 262 3676 | GC, remodel, ADU | Junction City · Trinity County | — | — |