| Sun Air | Sun Air | — | (831) 266 3678 | HVAC | Aptos · Santa Cruz County | — | — |
| Sunburst Construction INC | David Julius Hofvendahl | — | (813) 588 4875 | GC, remodel, ADU | Felton · Santa Cruz County | — | — |
| Sunny Landscaping | Sunny Landscaping | — | (831) 359 2422 | Windows, patio, painters | Santa Cruz · Santa Cruz County | — | — |
| Sunra Group INC | Jonathan Theodore Schantz | — | (831) 621 5115 | HVAC | Santa Cruz · Santa Cruz County | — | — |
| Sunrise Electrical Contracting INC | Branden Sean Husted | service@sunriseelectricalcontracting.com | (831) 786 5506 | Electricians | Santa Cruz · Santa Cruz County | — | — |
| Sunset Tile | Sunset Tile | — | (831) 239 9126 | Other | Scotts Valley · Santa Cruz County | — | — |
| Sunshine Electric | Raymond Evert | interested@domainmarket.com | (831) 222 0733 | Electricians | Santa Cruz · Santa Cruz County | — | — |
| Sunwest Construction | Drew Allyn Nieminen | — | (831) 566 9010 | GC, remodel, ADU | Soquel · Santa Cruz County | — | — |
| Super Rooter Plumbing INC | Jacy Guerin Aragao | — | (831) 475 1898 | Other | Santa Cruz · Santa Cruz County | — | — |
| Super Steam INC | Ryan Scott Alameda | — | (831) 425 3590 | Other | Santa Cruz · Santa Cruz County | — | — |
| Super Van Plumbing | Super Van Plumbing | — | (831) 421 1020 | Other | Felton · Santa Cruz County | — | — |
| Superior Alarm Company | Doyle Appleton Poland | — | (831) 425 5771 | Electricians | Santa Cruz · Santa Cruz County | — | — |
| Superior Garage Door LLC | Riley Hector Torres | %20superdoor1983@gmail.com | (951) 712-7652 | Other | Santa Cruz · Santa Cruz County | — | — |
| Superior Hydroseeding INC | Morgan Mc Pherson Kost | — | (831) 763 1811 | Windows, patio, painters | Watsonville · Santa Cruz County | — | — |
| Superior Pump Company | Jason Thomas Walsh | — | (831) 688 7867 | Other | Aptos · Santa Cruz County | — | — |
| Superior Structures INC | Brian Charles Leonardis | — | (831) 359 0794 | GC, remodel, ADU | Watsonville · Santa Cruz County | — | — |
| Superpro Painting INC | Julio Cesar Villalobos Arteaga | — | (831) 400 7471 | Windows, patio, painters | Watsonville · Santa Cruz County | — | — |
| Supreme Plumbing And Drain INC | Miguel Angel Fernandez Ortiz | — | (831) 900 8838 | Other | Freedom · Santa Cruz County | — | — |
| Sure Electric INC | Marc Lawrence Mengo | — | (831) 588 4661 | Electricians | Scotts Valley · Santa Cruz County | — | — |
| Surfnet Communications INC | Kenneth Mitchell Nye | support@surfnetc.com | (831) 439 7873 | Other | Scotts Valley · Santa Cruz County | — | — |
| Sushil Joshi | Sushil Joshi | — | (831) 335 3727 | GC, remodel, ADU | Felton · Santa Cruz County | — | — |
| Sweers Construction | Lorin Paul Sweers | — | (831) 335 5926 | GC, remodel, ADU | Mt Hermon · Santa Cruz County | — | — |
| Sweeters Construction | Nathaniel Stephen Sweeters | — | (408) 332 9592 | GC, remodel, ADU | Scotts Valley · Santa Cruz County | — | — |
| Sweetwater Construction | Mike Karl Smith | — | (408) 390 3826 | GC, remodel, ADU | Santa Cruz · Santa Cruz County | — | — |
| Swenson's Landscaping | Swenson's Landscaping | — | (831) 254 3693 | Windows, patio, painters | Watsonville · Santa Cruz County | — | — |
| Swingline Tree Services Co | Feliciano Gerard | — | (831) 252 0930 | GC, remodel, ADU | Brookdale · Santa Cruz County | — | — |
| Swint Construction | Christopher Seon Swint | — | (831) 239 3073 | GC, remodel, ADU | Scotts Valley · Santa Cruz County | — | — |
| Syres Electric | Michael Scott Syres | — | (831) 227 7001 | Electricians | Santa Cruz · Santa Cruz County | — | — |
| T & M Concrete | T & M Concrete | — | (831) 234 2652 | Windows, patio, painters | Aptos · Santa Cruz County | — | — |
| T D Construction | Ted Dean Egner | — | (831) 345 3681 | GC, remodel, ADU | Santa Cruz · Santa Cruz County | — | — |
| T J D Tile And Stone | Travis Jordan Dias | — | (707) 782 6131 | Other | Ben Lomond · Santa Cruz County | — | — |
| T J Radonich Construction | Tyler Jason Radonich | — | (408) 590 9310 | GC, remodel, ADU | Mount Hermon · Santa Cruz County | — | — |
| T Paul Sek | T Paul Sek | — | (831) 588 4080 | Windows, patio, painters | Santa Cruz · Santa Cruz County | — | — |
| T Pennington's Construction | Thomas Samuel Pennington | — | (831) 750 9674 | GC, remodel, ADU | Santa Cruz · Santa Cruz County | — | — |
| Tadashi Construction | Tadashi Conrad Stretton | — | (831) 251 5643 | GC, remodel, ADU | Santa Cruz · Santa Cruz County | — | — |
| Talmadge Construction INC | Lauren Patricia Talmadge | — | (831) 689 9133 | GC, remodel, ADU | Aptos · Santa Cruz County | — | — |
| Tate Construction | Raymon Edward Iii Tate | — | (831) 420 7170 | GC, remodel, ADU | Santa Cruz · Santa Cruz County | — | — |
| Tavio's General Construction | Jimenez Garcia Octavio | — | (831) 421 2798 | GC, remodel, ADU | Scotts Valley · Santa Cruz County | — | — |
| Taylor Built Construction | Mark Jeffrey Taylor | — | (831) 346 7717 | GC, remodel, ADU | Santa Cruz · Santa Cruz County | — | — |
| Taylor Reinhold INC DBA Fresh Walls Paint Company | Taylor Harris Reinhold | — | (831) 600 5513 | Windows, patio, painters | Soquel · Santa Cruz County | — | — |