| 6th Gen Masonry | 6th Gen Masonry | 6thgenmasonry@gmail.com | (831) 359 3849 | Other | Aptos · Santa Cruz County | — | — |
| 831 Garage Doors | 831 Garage Doors | — | (831) 400 6596 | Other | Watsonville · Santa Cruz County | — | — |
| A & B Raingutters | A & B Raingutters | — | (831) 588 0720 | Other | Santa Cruz · Santa Cruz County | — | — |
| A & C Grading INC | Steven Frank Gonzales | — | (831) 840 0554 | Other | Watsonville · Santa Cruz County | — | — |
| A - 1 Garage Doors | A - 1 Garage Doors | — | (831) 818 1527 | Other | Watsonville · Santa Cruz County | — | — |
| A - Locksmith - Craig | A - Locksmith - Craig | — | (831) 234 4025 | Other | Felton · Santa Cruz County | — | — |
| A And G Tile | A And G Tile | info@agtile.com | (831) 818 4002 | Other | Watsonville · Santa Cruz County | — | — |
| A C Bentley Concrete INC | Adam Calman Bentley | adam@acbentleyconcrete.com | (831) 419 0368 | Other | Soquel · Santa Cruz County | — | — |
| A C Fencing | A C Fencing | — | (831) 566 2914 | Other | Capitola · Santa Cruz County | — | — |
| A P C S C INC | Andrew Maximilian Towne | — | (831) 345 8101 | Other | Scotts Valley · Santa Cruz County | — | — |
| Abacherli Fence Company | Rodney Warren Herd | abacherlifence@cruzio.com | (831) 476 2255 | Other | Soquel · Santa Cruz County | — | — |
| Above & Beyond Fire Protection INC | Marc Lyle Henry | — | (831) 466 9647 | Other | Santa Cruz · Santa Cruz County | — | — |
| Access Options INC | Ira Marc Sagal | — | (831) 722 6804 | Other | Watsonville · Santa Cruz County | — | — |
| Action Pump And Water LLC | Capener | — | (916) 622 4886 | Other | Watsonville · Santa Cruz County | — | — |
| Activated Communications INC | Jason Cooper Meyers | — | (831) 438 2900 | Other | Santa Cruz · Santa Cruz County | — | — |
| Advanced Awareness Surveillance Systems | Advanced Awareness Surveillance Systems | — | (831) 332 7757 | Other | Boulder Creek · Santa Cruz County | — | — |
| Advanced Blind & Shade INC | Todd John Rybczyk | — | (831) 479 1109 | Other | Soquel · Santa Cruz County | — | — |
| Affordable Fire Sprinkler Design LLC | Thomas Raymond Reed | cameron@afsdplans.com | (831) 332 6106 | Other | Santa Cruz · Santa Cruz County | — | — |
| Alan Renzi Plumbing | Alan Renzi Plumbing | — | (831) 454 6360 | Other | Santa Cruz · Santa Cruz County | — | — |
| Alberi Plastering INC | Scott Richard Alberi | anapbm@gmail.com | (831) 346 6702 | Other | Santa Cruz · Santa Cruz County | — | — |
| Albert D Soriano | Albert D Soriano | — | (831) 212 6171 | Other | Santa Cruz · Santa Cruz County | — | — |
| Albert's Plumbing & Drain Service | Albert Dean Soriano | albertsplumbing831@gmail.com | (831) 633 2000 | Other | Santa Cruz · Santa Cruz County | — | — |
| All Earth Geotechnical Engineering INC | Philip T Edwards | — | (831) 345 8852 | Other | Santa Cruz · Santa Cruz County | — | — |
| All Metal Construction | Graham George Bubb | — | (408) 210 7324 | Other | Aptos · Santa Cruz County | — | — |
| Allison Woodworking | Allison Woodworking | — | (831) 419 0455 | Other | Santa Cruz · Santa Cruz County | — | — |
| Allsafe Lock Co | Vickie Lynn Dahl | — | (831) 462 6045 | Other | Santa Cruz · Santa Cruz County | — | — |
| Aluffi Tile And Natural Stone | Aluffi Tile And Natural Stone | — | (831) 212 6738 | Other | Santa Cruz · Santa Cruz County | — | — |
| Am Rough Carpentry | Am Rough Carpentry | — | (831) 776 2254 | Other | Watsonville · Santa Cruz County | — | — |
| American River Constructors A Joint Venture | Construction Company Granite | — | (831) 768 4086 | Other | Watsonville · Santa Cruz County | — | — |
| Americon INC | Jeremy Paul Oliveira | info@americon.com | (831) 750 6551 | Other | Watsonville · Santa Cruz County | — | — |
| Anchor Pipe & Drain INC | Darrel Ochieng Forde | — | (831) 566 7493 | Other | Ben Lomond · Santa Cruz County | — | — |
| Andre Gandrup | Andre Gandrup | — | (831) 621 2242 | Other | Scotts Valley · Santa Cruz County | — | — |
| Angel Guevara | Angel Guevara | — | (831) 334 9442 | Other | Santa Cruz · Santa Cruz County | — | — |
| Anytime Plumbing INC | Amer Abdul Jalil Zaghlouleh | — | (831) 431 6593 | Other | Santa Cruz · Santa Cruz County | — | — |
| Apex Frame Co | Luis Angel Medina | — | (831) 888 6853 | Other | Santa Cruz · Santa Cruz County | — | — |
| Apollo Plumbing | Jamin David Lyons | — | (831) 227 4333 | Other | Boulder Creek · Santa Cruz County | — | — |
| Aptos Plumbing | Aptos Plumbing | — | (831) 421 2700 | Other | Aptos · Santa Cruz County | — | — |
| Arellano Lath & Plaster | Arellano Lath & Plaster | — | (831) 840 3375 | Other | Watsonville · Santa Cruz County | — | — |
| Artisan Works Plastering | Artisan Works Plastering | — | (831) 247 9615 | Other | Scotts Valley · Santa Cruz County | — | — |
| Asante Plumbing INC | Robert Waruingi Thuita | — | (831) 420 7332 | Other | Santa Cruz · Santa Cruz County | — | — |