| Sean Haggett | Sean Haggett | — | (831) 673 2037 | GC, remodel, ADU | Hollister · San Benito County | — | — |
| Service Pros | Anthony Victor Montoya | — | (408) 677 6923 | HVAC | Hollister · San Benito County | — | — |
| Servpro Of East Poway/ramona | Servpro Of East Poway/ramona | — | (760) 968-0416 | Restoration | Ramona · San Benito County | — | — |
| Seven Oaks Construction INC | Mark Russell Cirelli | — | (831) 902 5312 | GC, remodel, ADU | Hollister · San Benito County | — | — |
| Sheet Metal Systems INC | Nicholas Charles Hough | — | (831) 635 9090 | Other | Hollister · San Benito County | — | — |
| Signone | Sangwung Park | — | (831) 583 9800 | Other | Hollister · San Benito County | — | — |
| Silva Tile Co | Jeffery David Silva | — | (831) 673 5551 | Other | Hollister · San Benito County | — | — |
| Silveira Construction LLC | Joseph John Silveira | — | (831) 902 5741 | Other | Hollister · San Benito County | — | — |
| Simplisafe | Simplisafe | customer-support@simplisafe.co.uk | — | Alarm and generators | San Benito · San Benito County | — | — |
| Slb Services | Sean David Bolin | — | (831) 801 0286 | GC, remodel, ADU | Hollister · San Benito County | — | — |
| So Cal Inspectors INC | So Cal Inspectors INC | — | (760) 591-9244 | Inspectors | San Marcos · San Benito County | — | — |
| Soho Construction Co. | Soho Construction Co. | — | (760) 717-7887 | GC, remodel, ADU | Solana Beach · San Benito County | — | — |
| Solana Beach Budget Window Ca | Solana Beach Budget Window Ca | — | (619) 314-9295 | Windows, patio, painters | Solana Beach · San Benito County | — | — |
| Solis Landscape And Construction INC | Solis Herman | — | (831) 902 0227 | GC, remodel, ADU | Hollister · San Benito County | — | — |
| Source Flow Pump | Source Flow Pump | tysonr.enzweiler@gmail.com | (831) 420 7244 | Other | Hollister · San Benito County | — | — |
| South Bay Finish Carpentry LLC | Alberto Allan Rodriguez | — | (831) 801 5081 | Other | Hollister · San Benito County | — | — |
| South Bay Tile And Stone | South Bay Tile And Stone | — | (408) 705 3211 | Other | Hollister · San Benito County | — | — |
| South County Drywall & Plastering INC | Steven M Grow | — | (831) 902 5373 | Other | Hollister · San Benito County | — | — |
| Spa/pool Repair | David William Sanchez | — | (831) 246 3131 | Pool | San Juan Bautista · San Benito County | — | — |
| Sparks Electrical Solutions INC | Steven S Sparks | — | (408) 512 4500 | Electricians | San Juan Bautista · San Benito County | — | — |
| Specialty Floors & More | Specialty Floors & More | — | (831) 665 2777 | Other | Hollister · San Benito County | — | — |
| Src Roofing | Camarillo Saul | mail@src-roofing.com | (408) 710 5589 | Other roofers | Hollister · San Benito County | — | — |
| Staley Construction INC | Jason Darrell Staley | — | (831) 757 1250 | GC, remodel, ADU | Hollister · San Benito County | — | — |
| Statua Construction | Michael Anthony Statua | — | (831) 345 5053 | GC, remodel, ADU | San Juan Bautista · San Benito County | — | — |
| Steel Solutions INC | Royce Evan Bowlus | — | (831) 638 0774 | GC, remodel, ADU | Hollister · San Benito County | — | — |
| Stellar Landscaping | Stellar Landscaping | — | (831) 801 3955 | Windows, patio, painters | Hollister · San Benito County | — | — |
| Steven D Franco | Steven D Franco | — | (408) 804 1854 | Other | Hollister · San Benito County | — | — |
| Stonewall Plastering INC | Michael Guy Franks | — | (831) 630 9019 | Other | Hollister · San Benito County | — | — |
| Straight Edge Engineering Co | Magana Antonio | — | (831) 261 3033 | Other | San Juan Bautista · San Benito County | — | — |
| Sun Coast Heating And Cooling | Sun Coast Heating And Cooling | — | (831) 235 7898 | HVAC | Hollister · San Benito County | — | — |
| Sunrise Home Construction INC | Robert John Mills | — | (831) 637 8077 | GC, remodel, ADU | Hollister · San Benito County | — | — |
| Sunrise Landscape And Tree Services | Sunrise Landscape And Tree Services | — | (760) 453-3316 | Tree | Del Mar · San Benito County | — | — |
| Superior Cover Cleaning | Superior Cover Cleaning | — | (831) 801 8144 | Pool | Hollister · San Benito County | — | — |
| Superior Metal Gutters | Superior Metal Gutters | — | (831) 750 6293 | Other | Hollister · San Benito County | — | — |
| Sustainable Eco Systems INC | Rick Alvernaz Silva | — | (831) 801 8051 | Windows, patio, painters | Hollister · San Benito County | — | — |
| Sustainable Property Management- | Sustainable Property Management- | — | (858) 360-2540 | Property managers | Escondido · San Benito County | — | — |
| Swiftvoltage INC | Frederico Angel Jr Rodriguez | info@swiftvoltage.com | (408) 905 6055 | Electricians | Hollister · San Benito County | — | — |
| Symmetry Design + Build INC | Jason Matthew Guerra | — | (831) 750 5252 | GC, remodel, ADU | Hollister · San Benito County | — | — |
| T B Awnings | T B Awnings | — | (408) 806 7574 | Other | Hollister · San Benito County | — | — |
| T R Construction | Rafael Correa Salcedo | — | (831) 524 2704 | GC, remodel, ADU | Hollister · San Benito County | — | — |