| Rx2 Electric INC | Raymundo Joel Lopez | — | (805) 630 8019 | Electricians | Thousand Oaks · Ventura County | — | — |
| Ryan Baldwin | Ryan Baldwin | — | (805) 701 7088 | GC, remodel, ADU | Ventura · Ventura County | — | — |
| Ryan Construction And Remodeling INC | Dennis George Ryan | — | (805) 857 8421 | GC, remodel, ADU | Thousand Oaks · Ventura County | — | — |
| Ryan Construction INC | Michael Peter Ryan | — | (818) 612 0465 | GC, remodel, ADU | Thousand Oaks · Ventura County | — | — |
| Ryan Denger Contracting INC | Ryan Daryl Denger | — | (805) 651 9936 | GC, remodel, ADU | Ventura · Ventura County | — | — |
| Ryan Real Estate And Development INC | Timothy Kirk Ryan | — | (805) 370 8572 | GC, remodel, ADU | Thousand Oaks · Ventura County | — | — |
| Ryan Salinas Pools | Ryan Michael Salinas | — | (818) 808 8293 | Pool | Simi Valley · Ventura County | — | — |
| Ryan's Plumbing INC | Ryan Scott Wood | — | (805) 651 9720 | Electricians | Ventura · Ventura County | — | — |
| Ryan's Pool Service INC | Ryan Blake Brashear | — | (805) 501 7007 | Pool | Newbury Park · Ventura County | — | — |
| Ryff Design Group INC DBA Landscape Design-build | Kody Lance Ryff | — | (805) 330 7124 | Windows, patio, painters | Camarillo · Ventura County | — | — |
| Rytech Of Ventura County | Mathew Thomas Stone | — | (805) 300 5364 | GC, remodel, ADU | Simi Valley · Ventura County | — | — |
| S & J Remediation | Stephanie Margaret Osburn | — | (858) 829 3956 | GC, remodel, ADU | Camarillo · Ventura County | — | — |
| S & L Construction | Lawrence Charles Gallardo | — | (805) 223 1688 | GC, remodel, ADU | Santa Paula · Ventura County | — | — |
| S & S Concrete Construction INC | Mark Lee Sharp | — | (928) 733 7963 | GC, remodel, ADU | Westlake Village · Ventura County | — | — |
| S & S Fence & Fab | Anthony Alexander Sanchez | — | (805) 793 8436 | Other | Oxnard · Ventura County | — | — |
| S & S Landscape Maintenance | S & S Landscape Maintenance | — | (805) 732 6263 | Windows, patio, painters | Moorpark · Ventura County | — | — |
| S & S Paving INC | Jose Hurtado | — | (818) 591 0668 | Other | Simi Valley · Ventura County | — | — |
| S A C Builders Construction Co | Santiago Cardenas Alonzo | — | (805) 701 7613 | GC, remodel, ADU | Oxnard · Ventura County | — | — |
| S B S Corporation | David Anthony Alatorre | — | (805) 494 4363 | GC, remodel, ADU | Camarillo · Ventura County | — | — |
| S C Coastline Electric | Steven Lee Cravens | — | (805) 404 4893 | Electricians | Thousand Oaks · Ventura County | — | — |
| S C Construction | Steve Lawrence Collins | — | (310) 871 1530 | GC, remodel, ADU | Ventura · Ventura County | — | — |
| S C M C Incorporated | Gerald Christopher Schober | — | (805) 495 1141 | GC, remodel, ADU | Thousand Oaks · Ventura County | — | — |
| S C Masonry | S C Masonry | office@scmasonry.com | (818) 522-3145 | GC, remodel, ADU | Ojai · Ventura County | — | — |
| S C Sheet Metal INC | Craig John Reibenspies | — | (805) 376 3330 | Other roofers | Newbury Park · Ventura County | — | — |
| S E T Drywall | S E T Drywall | — | (805) 236 7533 | Other | Port Hueneme · Ventura County | — | — |
| S G Masonry | S G Masonry | — | (805) 551 9154 | Other | Camarillo · Ventura County | — | — |
| S J B Masonry | S J B Masonry | — | (805) 750 0385 | Other | Newbury Park · Ventura County | — | — |
| S J Electric | Sergio Abraham Jimenez | — | (818) 416 5373 | Electricians | Simi Valley · Ventura County | — | — |
| S J H Construction | Shane Joseph Handy | — | (805) 338 4487 | GC, remodel, ADU | Newbury Park · Ventura County | — | — |
| S J M Construction | Steven Jeffrey Merkel | — | (907) 738 1992 | GC, remodel, ADU | Thousand Oaks · Ventura County | — | — |
| S J S Cabinets | Steven Louis Delahunt | — | (805) 577 9534 | GC, remodel, ADU | Simi Valley · Ventura County | — | — |
| S K S Electric | Carrillo Edwin | — | (805) 248 5536 | Electricians | Camarillo · Ventura County | — | — |
| S L Electric | Steven Blair Lapin | — | (818) 633 9300 | Electricians | Moorpark · Ventura County | — | — |
| S Luby Construction | Sean Casey Luby | — | (818) 631 3628 | GC, remodel, ADU | Newbury Park · Ventura County | — | — |
| S M Electrical Maintenance Services | Mack Arthur Boone | — | (805) 889 4612 | Electricians | Oxnard · Ventura County | — | — |
| S M Masonry | S M Masonry | — | (805) 391 4541 | Other | Simi Valley · Ventura County | — | — |
| S N T Construction | Rodriguez Steven | — | (805) 469 8166 | GC, remodel, ADU | Ventura · Ventura County | — | — |
| S O S | S O S | — | (805) 836 9852 | GC, remodel, ADU | Ojai · Ventura County | — | — |
| S O S General Construction | Barragan Hector | impallari@gmail.com | (805) 890 3239 | GC, remodel, ADU | Oxnard · Ventura County | — | — |
| S P Construction | Perales Sergio | — | (805) 612 9390 | GC, remodel, ADU | Port Hueneme · Ventura County | — | — |