| 3G Carpentry INC | Gregory Gordon Govan | — | (831) 566 3719 | GC, remodel, ADU | Santa Cruz · Santa Cruz County | — | — |
| 4 Long Term Construction | Nieves Reyes Longino | — | (831) 840 4293 | GC, remodel, ADU | Watsonville · Santa Cruz County | — | — |
| 831 Builder | 831 Builder | — | (831) 224 6822 | GC, remodel, ADU | Santa Cruz · Santa Cruz County | — | — |
| A & B Construction Services | Monte Michael Bishop | — | (408) 674 5072 | GC, remodel, ADU | Santa Cruz · Santa Cruz County | — | — |
| A + Construction INC | Kenneth Walter Clausing | — | (831) 335 0128 | GC, remodel, ADU | Felton · Santa Cruz County | — | — |
| A - 1 Building Solutions INC | Tracy Lynn Armintrout | — | (831) 763 0563 | GC, remodel, ADU | Freedom · Santa Cruz County | — | — |
| A Accurate O H Door | A Accurate O H Door | — | (831) 722 1234 | GC, remodel, ADU | Watsonville · Santa Cruz County | — | — |
| A Beristain Construction | Jose Antonio Beristain | — | (831) 566 4603 | GC, remodel, ADU | Soquel · Santa Cruz County | — | — |
| A C C Construction | Adrian Morales Jimenez | — | (831) 316 8912 | GC, remodel, ADU | Watsonville · Santa Cruz County | — | — |
| A P M | A P M | — | (650) 776 4064 | GC, remodel, ADU | Capitola · Santa Cruz County | — | — |
| A To Z Builders | Salvador Martinez Zuniga | — | (831) 234 4034 | GC, remodel, ADU | Watsonville · Santa Cruz County | — | — |
| A-1 Deadbolt & Door | A-1 Deadbolt & Door | — | (831) 476 7970 | GC, remodel, ADU | Capitola · Santa Cruz County | — | — |
| A-custom Construction Company | Ronald Albert Esche | — | (831) 818 1323 | GC, remodel, ADU | Santa Cruz · Santa Cruz County | — | — |
| Aaron Ackerman Construction | Aaron James Ackerman | — | (831) 809 4922 | GC, remodel, ADU | Santa Cruz · Santa Cruz County | — | — |
| Aaron Anderson | Aaron Anderson | — | (831) 419 2131 | GC, remodel, ADU | Ben Lomond · Santa Cruz County | — | — |
| Aaron Chase | Aaron Chase | — | (831) 566 1336 | GC, remodel, ADU | Boulder Creek · Santa Cruz County | — | — |
| Aaron Garfinkel Construction | Garfinkel Aaron | — | (831) 335 3996 | GC, remodel, ADU | Boulder Creek · Santa Cruz County | — | — |
| Aaron Lakey Construction | Aaron John Lakey | — | (831) 234 0072 | GC, remodel, ADU | Scotts Valley · Santa Cruz County | — | — |
| About Builds Construction | Brian Stephen Kimmel | — | (831) 234 3907 | GC, remodel, ADU | Santa Cruz · Santa Cruz County | — | — |
| Aboveboard Construction INC | Randy Patrick Solomon | — | (831) 566 7371 | GC, remodel, ADU | Santa Cruz · Santa Cruz County | — | — |
| Abud Construction | Alexander Martin Budka | — | (831) 687 8721 | GC, remodel, ADU | Santa Cruz · Santa Cruz County | — | — |
| AC Designers & Craftsmen | Chad Patrick Reitan | — | (831) 475 4269 | GC, remodel, ADU | Soquel · Santa Cruz County | — | — |
| Acker Construction And Associates INC | Mark Christopher Acker | — | (831) 227 0247 | GC, remodel, ADU | Santa Cruz · Santa Cruz County | — | — |
| Acosta Building Company | Dennis Michael Acosta | — | (650) 201 4701 | GC, remodel, ADU | Ben Lomond · Santa Cruz County | — | — |
| Acosta Construction | Juan Carlos Acosta-trejo | — | (831) 435 0212 | GC, remodel, ADU | Soquel · Santa Cruz County | — | — |
| Acosta Construction Services LLC | Augustine Santana Acosta | — | (831) 319 2839 | GC, remodel, ADU | Watsonville · Santa Cruz County | — | — |
| Adam Fisher Construction | Adam Dawson Fisher | adamfisherconstruction@gmail.com | (831) 566 8014 | GC, remodel, ADU | Aptos · Santa Cruz County | — | — |
| Adobe Interiors | Adobe Interiors | — | (817) 294-0053 | GC, remodel, ADU | Ben Lomond · Santa Cruz County | — | — |
| Affordable Septic & Excavating | Affordable Septic & Excavating | — | (831) 234 3893 | GC, remodel, ADU | Boulder Creek · Santa Cruz County | — | — |
| Against The Grain | Against The Grain | — | (831) 458 2464 | GC, remodel, ADU | Santa Cruz · Santa Cruz County | — | — |
| Aimms | Robert John Thornton | — | (831) 566 9272 | GC, remodel, ADU | Santa Cruz · Santa Cruz County | — | — |
| Air Tight Vinyl Siding & Windows | James Lee Sampson | — | (831) 462 9695 | GC, remodel, ADU | Soquel · Santa Cruz County | — | — |
| Airel Construction | David Airel Yeakel | — | (831) 247 9388 | GC, remodel, ADU | Santa Cruz · Santa Cruz County | — | — |
| Ajs Builders INC | Andrew Jacob Slipsager | — | (831) 515 7015 | GC, remodel, ADU | Aptos · Santa Cruz County | — | — |
| Al-lami Construction | David Allan Al-lami | — | (831) 332 6463 | GC, remodel, ADU | Soquel · Santa Cruz County | — | — |
| Albro Construction INC | Jeffrey Paul Albro | — | (831) 818 7211 | GC, remodel, ADU | Ben Lomond · Santa Cruz County | — | — |
| Alex Work Construction | Alexander Vallee Work | — | (831) 818 2383 | GC, remodel, ADU | Santa Cruz · Santa Cruz County | — | — |
| Alexander Building Company INC | Daniel Anthony Alexander | — | (831) 901 3564 | GC, remodel, ADU | Felton · Santa Cruz County | — | — |
| Allen Rexrode | Allen Rexrode | — | (831) 566 0415 | GC, remodel, ADU | Felton · Santa Cruz County | — | — |
| Alliance Drywall Systems INC | Mark David Cole | — | (831) 239 8095 | GC, remodel, ADU | Scotts Valley · Santa Cruz County | — | — |