| Saunders Painting | Saunders Painting | — | (209) 814 5346 | Windows, patio, painters | Oakdale · Stanislaus County | — | — |
| Saxon Electric Inc. | Saxon Electric Inc. | — | (760) 262-0720 | Electricians | Vista · Stanislaus County | — | — |
| Sbg Construction INC | Navarrete Marcos Salinas | — | (209) 390 3986 | GC, remodel, ADU | Newman · Stanislaus County | — | — |
| Schieffer Electric | Larry Paul Schieffer | — | (209) 996 9559 | Electricians | Oakdale · Stanislaus County | — | — |
| Schlegel Finish Carpentry | Schlegel Finish Carpentry | — | (209) 605 2218 | Other | Modesto · Stanislaus County | — | — |
| Schmid Landscaping | Schmid Landscaping | daniel@schmidlandscaping.com | (209) 495 5623 | Windows, patio, painters | Modesto · Stanislaus County | — | — |
| Schmidt Concrete | Schmidt Concrete | schmidtconcrete@gmail.com | (209) 445 1107 | Other | Modesto · Stanislaus County | — | — |
| Schneider Acoustics Specialties | Schneider Acoustics Specialties | — | (209) 652 4514 | GC, remodel, ADU | Modesto · Stanislaus County | — | — |
| Schwartz & Co Construction | Dan Edwin Schwartz | — | (209) 530 0900 | GC, remodel, ADU | Oakdale · Stanislaus County | — | — |
| Scion Construction | Brian Ronald Sanders | — | (209) 604 4484 | GC, remodel, ADU | Modesto · Stanislaus County | — | — |
| Scm Corporate Group | Mark Anthony Trinta | — | (209) 579 2020 | GC, remodel, ADU | Modesto · Stanislaus County | — | — |
| Scorpio General Contractor INC | Roberto Flaudio Valdivia | — | (209) 996 7801 | GC, remodel, ADU | Modesto · Stanislaus County | — | — |
| Scott Berg Performance Painting | Scott Berg Performance Painting | — | (209) 985 2444 | Windows, patio, painters | Modesto · Stanislaus County | — | — |
| Scott L Welch Construction | Scott Lance Welch | — | (209) 678 3855 | GC, remodel, ADU | Turlock · Stanislaus County | — | — |
| Scott Mooneyham Construction INC | Scott Gorrall Mooneyham | — | (209) 216 7553 | GC, remodel, ADU | Turlock · Stanislaus County | — | — |
| Scott Wright Electric INC | Patti Kay Wright | — | (209) 605 5656 | Electricians | Modesto · Stanislaus County | — | — |
| Scott's Pool Repair A Partnership | Joshua Michael Sneed | — | (209) 531 3611 | Pool | Hughson · Stanislaus County | — | — |
| Scotty's Painting | Scotty's Painting | — | (209) 416 1929 | Windows, patio, painters | Riverbank · Stanislaus County | — | — |
| Sd Mobile Welding & Repair LLC | Simon Joseph David | — | (209) 416 9449 | Other | Modesto · Stanislaus County | — | — |
| Sdp Drywall | Sdp Drywall | — | (209) 362 8512 | Other | Modesto · Stanislaus County | — | — |
| Sean W Smith INC | Sean Warren Smith | infoseansmusic@gmail.com | (415) 290 2921 | Other | Oakdale · Stanislaus County | — | — |
| Seca Equipment Removal & Dismantling INC | Espinoza Steve | — | (209) 543 1600 | Other | Modesto · Stanislaus County | — | — |
| Sentinel Rock Realty Trust | James Kent Mc Faddin | — | (209) 576 2240 | HVAC | Modesto · Stanislaus County | — | — |
| Serrato Painting | Serrato Painting | — | (530) 908 4875 | Windows, patio, painters | Turlock · Stanislaus County | — | — |
| Serv3 Networks | Abdel Rahim Varela | — | (209) 824 0025 | Other | Modesto · Stanislaus County | — | — |
| Service Installation Prefabricated Systems | Bryan Anthony Valdivia | — | (209) 534 7317 | Other | Modesto · Stanislaus County | — | — |
| Service Kings Heating And Air | Nathan Lee Datus | — | (209) 252 6222 | HVAC | Oakdale · Stanislaus County | — | — |
| Service Pro Locksmith | Sanroman-marquez Eduardo | — | (209) 678 3421 | Other | Salida · Stanislaus County | — | — |
| Service-temp Heating & Air Conditioning | Felipe De Jesus Rodriguez | — | (209) 214 5184 | HVAC | Modesto · Stanislaus County | — | — |
| Servicemaster Fire/water Restoration By Disaster Pros | Inderjit Singh Toor | — | (209) 579 3050 | GC, remodel, ADU | Modesto · Stanislaus County | — | — |
| Shacy Painting & Decorating | Shacy Painting & Decorating | — | (209) 485 1277 | Windows, patio, painters | Turlock · Stanislaus County | — | — |
| Shamalta Construction | Rommel Shamalta | — | (209) 669 8629 | GC, remodel, ADU | Turlock · Stanislaus County | — | — |
| Shannon D Paboojian | Shannon D Paboojian | — | (209) 499 6378 | GC, remodel, ADU | Oakdale · Stanislaus County | — | — |
| Shark Painting LLC | Iniguez Ruiz Gricelda | — | (801) 949-9215 | Windows, patio, painters | Modesto · Stanislaus County | — | — |
| Sharp Construction LLC | Kevin Dennis Sharp | — | (209) 765 1458 | GC, remodel, ADU | Modesto · Stanislaus County | — | — |
| Shaun Caulkins | Shaun Caulkins | — | (209) 613 4256 | GC, remodel, ADU | Modesto · Stanislaus County | — | — |
| Shawn Brandon Cullum | Shawn Brandon Cullum | — | (209) 324 7393 | Windows, patio, painters | Denair · Stanislaus County | — | — |
| Shawn Smith | Shawn Smith | — | (209) 534 8450 | Other | Modesto · Stanislaus County | — | — |
| Sheldons Cabinet Mill | Sheldons Cabinet Mill | — | (408) 313 4674 | Other | Patterson · Stanislaus County | — | — |
| Shelton & Davis INC | Denise Maureen Davis | — | (209) 404 2421 | GC, remodel, ADU | Modesto · Stanislaus County | — | — |