| Silver Core Electric LLC | Silvestre Aparicio Mendoza | — | (831) 227 1318 | Electricians | King City · Monterey County | — | — |
| Silver Electric INC | Filemon Sr Medina Naranjo | interested@domainmarket.com | (831) 512 5435 | Electricians | Salinas · Monterey County | — | — |
| Silverleaf Tree Service | Victor Manuel Alvarez | — | (831) 726 9072 | Tree | Aromas · Monterey County | — | — |
| Silverstone Contracting A Joint Venture | Landscaping Silverstone | — | (831) 277 7854 | GC, remodel, ADU | Salinas · Monterey County | — | — |
| Silverstone Home Renovations | Silverstone Home Renovations | — | (831) 521 5527 | GC, remodel, ADU | Marina · Monterey County | — | — |
| Silverstone Landscaping | Silverstone Landscaping | — | (831) 277 7854 | Windows, patio, painters | Prunedale · Monterey County | — | — |
| Silvino Sanchez Landscaping | Silvino Sanchez Landscaping | — | (831) 521 3782 | Windows, patio, painters | Seaside · Monterey County | — | — |
| Simplify Painting | Simplify Painting | tom@simplifypainting.com | (831) 241 1636 | Windows, patio, painters | Seaside · Monterey County | — | — |
| Siteworx INC | Jared William Yedlicka | — | (831) 444 1390 | Other | Salinas · Monterey County | — | — |
| Sjvc Rancho Mirage | Sjvc Rancho Mirage | — | (442) 305-7701 | HVAC | Rancho Mirage · Monterey County | — | — |
| Skinner Construction | Wesley Lambert Skinner | — | (831) 238 6553 | GC, remodel, ADU | Carmel Valley · Monterey County | — | — |
| Sky Blue Pool Plastering Co | Sky Blue Pool Plastering Co | — | (626) 524-4427 | Pool | Monterey Park · Monterey County | — | — |
| Skye Builders | Skye Builders | — | (415) 286 0163 | GC, remodel, ADU | Prunedale · Monterey County | — | — |
| Skyline Engineering INC | Justin Allen Schalesky | — | (831) 663 6188 | Other roofers | Salinas · Monterey County | — | — |
| Skyview Builders INC | Stuart Andrew Elder | info@skyviewbuilders.com | (831) 620 1905 | GC, remodel, ADU | Monterey · Monterey County | — | — |
| Slaton & Son Roofing INC | Lloyd Douglas Slaton Iii | — | (831) 449 0599 | Other roofers | Salinas · Monterey County | — | — |
| Sloping Dirt & Land Management LLC | Thomas Garcia | — | (831) 210 8494 | Other | Soledad · Monterey County | — | — |
| Smith And Enright Landscaping INC | James Frankland Smith | — | (831) 758 6766 | Windows, patio, painters | Salinas · Monterey County | — | — |
| Smokey Key Service LLC | Ronnie Gene Rehn | — | (831) 422 2555 | Other | Salinas · Monterey County | — | — |
| Snjaa Enterprises INC | Neil Sheldon Njaa | — | (831) 757 6574 | Windows, patio, painters | Salinas · Monterey County | — | — |
| Sol Hydronics | Sol Hydronics | — | (831) 601 7998 | HVAC | Carmel · Monterey County | — | — |
| Solano's Tree Services INC | Morelos Gonzalo Solano | — | (831) 998 6230 | Other | Salinas · Monterey County | — | — |
| Solartecture | George Edward Porter | — | (831) 646 5200 | Electricians | Pacific Grove · Monterey County | — | — |
| Soltero's Construction | Soltero Esperanza | — | (831) 320 9724 | GC, remodel, ADU | Soledad · Monterey County | — | — |
| Solutions General Contractor | Solutions General Contractor | — | (831) 917 0191 | GC, remodel, ADU | Seaside · Monterey County | — | — |
| Soria Contracting And Solutions INC | Armando Ramirez Soria | asoria@soriainc.com | (831) 800 3150 | GC, remodel, ADU | Salinas · Monterey County | — | — |
| Soriano Painting | Soriano Painting | — | (831) 760 2413 | Windows, patio, painters | Seaside · Monterey County | — | — |
| Soule Construction Incorporated | David James Soule | — | (831) 726 9113 | GC, remodel, ADU | Aromas · Monterey County | — | — |
| Sound Design Audio Video Contractors | Brian Edward Shaw | — | (831) 422 2350 | Other | Salinas · Monterey County | — | — |
| Sound Integration | Sound Integration | interested@domainmarket.com | (831) 392 6202 | Other | Salinas · Monterey County | — | — |
| Soundside Construction LLC | Chris | sam@mooreislandproperties.com | (831) 224 9768 | GC, remodel, ADU | Pacific Grove · Monterey County | — | — |
| South Bay Tree Care INC | Jorge Luis De La Cruz | southbaytreecareinc@yahoo.com | (831) 663 2677 | Tree | Salinas · Monterey County | — | — |
| South Coast Construction | David Charles Petenbrink | — | (831) 512 6739 | GC, remodel, ADU | Monterey · Monterey County | — | — |
| South County Engineering INC | Ruben David Garcia | — | (831) 223 8330 | Other | Soledad · Monterey County | — | — |
| South County Plumbing & Heating | South County Plumbing & Heating | — | (805) 472 2173 | HVAC | Lockwood · Monterey County | — | — |
| South County Pool Maintenance | Jeffrey Michael Moline | — | (831) 595 6248 | Pool | Salinas · Monterey County | — | — |
| South Valley Doors | South Valley Doors | — | (831) 678 2856 | Other | Soledad · Monterey County | — | — |
| South Valley Heat & Air INC | Francisco Javier Vargas Perez | — | (831) 313 5193 | HVAC | King City · Monterey County | — | — |
| Spangri - La Landscape And Gardens | Jeffrey Jay Spang | — | (831) 238 5008 | Windows, patio, painters | Carmel · Monterey County | — | — |
| Spark Electrical Solutions | John Anthony Berryman | — | (831) 917 2002 | Electricians | Salinas · Monterey County | — | — |