| Skyva Construction INC | Andrichuk Vladimir | — | (916) 726 4999 | GC, remodel, ADU | Granite Bay · Placer County | — | — |
| Slade Mechanical Services | Brian Donald Slade | brian@slademechanicalservices.com | (530) 878 3722 | Other | Auburn · Placer County | — | — |
| Slatter Built Construction | Eric Paul Slatter | — | (916) 276 3294 | GC, remodel, ADU | Newcastle · Placer County | — | — |
| Slf Capital Builders INC | Steven Leroy Fikes | — | (916) 532 7436 | GC, remodel, ADU | Roseville · Placer County | — | — |
| Sma America | Andrew Peter Deis | — | (916) 626 0820 | Electricians | Rocklin · Placer County | — | — |
| Small Town Construction | Steven Kent Jr Brown | — | (916) 813 5245 | Electricians | Roseville · Placer County | — | — |
| Small Town Construction LLC | Steven Kent Jr Brown | — | (916) 771 0793 | Electricians | Roseville · Placer County | — | — |
| Smart Home Construction | Stephen Michael Rue | — | (530) 887 1449 | Electricians | Auburn · Placer County | — | — |
| Smart Mechanical Solutions LLC | Michael| Vechto Mov Mikhail Vechtomov | info@smartmechanicalsolutions.com | (916) 223 5622 | HVAC | Roseville · Placer County | — | — |
| Smartspace Solutions Metal & Prefab | Timothy Patrick Lujan | — | (925) 639 8347 | Other | Lincoln · Placer County | — | — |
| Smb Construction | Steven Michael Bradley | — | (916) 764 2721 | GC, remodel, ADU | Auburn · Placer County | — | — |
| Smb Contracting | Stefan Mikol Buys | — | (916) 676 6646 | GC, remodel, ADU | Lincoln · Placer County | — | — |
| Smead Concrete | Smead Concrete | — | (530) 320 0208 | Other | Applegate · Placer County | — | — |
| Smile Roofing Ca | Smile Roofing Ca | — | (844) 719-3980 | Other roofers | Placer · Placer County | — | — |
| Smith Metal Works | Smith Metal Works | — | (530) 305 8416 | Other | Auburn · Placer County | — | — |
| Smoothcoat Painting | Smoothcoat Painting | — | (916) 773 4534 | Windows, patio, painters | Roseville · Placer County | — | — |
| Smv Renovation INC | Petr Sr Darmogray | — | (916) 490 9514 | GC, remodel, ADU | Auburn · Placer County | — | — |
| Snm Electric | Sean Michael Reed | — | (916) 908 7414 | Electricians | Lincoln · Placer County | — | — |
| Sol R Us Electrical INC | Romulo Alfredo Samaniego | — | (916) 281 7200 | Electricians | Rocklin · Placer County | — | — |
| Soldate Sheet Metal | Olivia Kate Soldate | — | (916) 774 0405 | Other | Rocklin · Placer County | — | — |
| Solid Building Services | Matthew Lee Denno | — | (530) 444 0439 | GC, remodel, ADU | Foresthill · Placer County | — | — |
| Solid Ground Concrete And Landscaping | Ronald Eugene Jr Owen | — | (916) 761 9743 | GC, remodel, ADU | Granite Bay · Placer County | — | — |
| Solid Ground Construction | Vitaliy Anatolyevich Lubko | interested@domainmarket.com | (916) 844 9814 | GC, remodel, ADU | Roseville · Placer County | — | — |
| Solid Home Builders INC | Timothy Puris | — | (916) 591 3803 | Electricians | Roseville · Placer County | — | — |
| Solid Rock Tile & Stone | Solid Rock Tile & Stone | — | (916) 597 6094 | Other | Lincoln · Placer County | — | — |
| Solomon Construction INC | Mark Alan Stacy | matt@solomon-construction.com | (916) 209 0172 | GC, remodel, ADU | Rocklin · Placer County | — | — |
| Solomon Electric | Richard Lyle Solomon | solomonelectric@yahoo.com | (530) 392 5665 | Electricians | Auburn · Placer County | — | — |
| Sonas Construction INC | Renee Jo Eastwood | reneejo@sonasconstruction.com | (209) 518 4836 | Electricians | Roseville · Placer County | — | — |
| Sondad Industries INC | Kellie Ann Gartrell | — | (916) 781 3627 | Other | Roseville · Placer County | — | — |
| Sonitrol Of Sacramento LLC | Ronald Steven Files | — | (916) 724 1170 | Electricians | Roseville · Placer County | — | — |
| Sonniks Construction INC | Vladimir A Sonnik | — | (916) 849 3002 | GC, remodel, ADU | Roseville · Placer County | — | — |
| Sonoma Fabricators INC | Jaime Richelle Holzer | — | (916) 771 8118 | Other | Roseville · Placer County | — | — |
| Sonray Construction | Kelly James Loftus | — | (916) 283 9087 | Other roofers | Rocklin · Placer County | — | — |
| Sorelle Homes LLC | Glen Michael Costanzo | — | (916) 315 1988 | GC, remodel, ADU | Rocklin · Placer County | — | — |
| Sorin's Interior & Exterior Painting | Sorin's Interior & Exterior Painting | — | (916) 828 8439 | Windows, patio, painters | Lincoln · Placer County | — | — |
| Southern Folger Contracting INC | Donovan Scott Meckes | — | (916) 900 6593 | Windows, patio, painters | Newcastle · Placer County | — | — |
| Southwest Electric | Stephen Paul Wilkens | sales@southwest-electric.com | (408) 506 4853 | Electricians | Auburn · Placer County | — | — |
| Southwest Grading INC | Derrick Lynn Wilkins | interested@domainmarket.com | (916) 632 6760 | Other | Loomis · Placer County | — | — |
| Spadi Custom Homes | Brett Christopher Spadi | info@spadicustomhomes.com | (530) 412 2712 | GC, remodel, ADU | Tahoe Vista · Placer County | — | — |
| Spangler Steel Structures INC | Leland Allen Spangler | — | (916) 645 9412 | GC, remodel, ADU | Lincoln · Placer County | — | — |