| $150,000–350,000 | SAN FRANCISCO PLAYHOUSE | SAN FRANCISCO, CA | Mechanics Bank |
| $350,000–1 million | SAN JOAQUIN VALLEY CHRISTIAN SCHOOL ASSOCIATION | MERCED, CA | Mechanics Bank |
| $350,000–1 million | SAN LUIS DERMATOLOGY & LASER CLINIC, INC. | SAN LUIS OBISPO, CA | Mechanics Bank |
| $150,000–350,000 | SAN SABA VINEYARDS, INC. | SOLEDAD, CA | Mechanics Bank |
| $350,000–1 million | SAN YSIDRO FARMS, INC. | NIPOMO, CA | Mechanics Bank |
| $150,000–350,000 | SAND CASTLE RESTAURANT GROUP, LLC | CAYUCOS, CA | Mechanics Bank |
| $150,000–350,000 | SANDOR HITES DDS | BERKELEY, CA | Mechanics Bank |
| $350,000–1 million | SANTA BARBARA ARTIFICIAL KIDNEY CENTER | SANTA BARBARA, CA | Mechanics Bank |
| $1–2 million | SANTA BARBARA SHELLFISH CO INC | SANTA BARBARA, CA | Mechanics Bank |
| $150,000–350,000 | SANTA BARBARA SURFACING, INC. | SANTA BARBARA, CA | Mechanics Bank |
| $150,000–350,000 | SANTA CLARA CATHOLIC CHURCH | OXNARD, CA | Mechanics Bank |
| $150,000–350,000 | SANTA CLARA ELEMENTARY SCHOOL | OXNARD, CA | Mechanics Bank |
| $350,000–1 million | SANTA CLARA SYSTEMS | ALAMEDA, CA | Mechanics Bank |
| $150,000–350,000 | SANTA CRUZ UNDERGOUND & PAVING, INC | APTOS, CA | Mechanics Bank |
| $2–5 million | SANTA FE MERCADOS INC | SAN JOSE, CA | Mechanics Bank |
| $150,000–350,000 | SANTA LUCIA FARM INC. | SANTA YNEZ, CA | Mechanics Bank |
| $350,000–1 million | SANTA MARIA VALLEY YOUNG MEN'S CHRISTIAN ASSOCIATION | SANTA MARIA, CA | Mechanics Bank |
| $1–2 million | SANTA ROSA BERRY FARMS, LLC | OXNARD, CA | Mechanics Bank |
| $150,000–350,000 | SANTA YNEZ PET HOSPITAL | LOS OLIVOS, CA | Mechanics Bank |
| $150,000–350,000 | SANTA YNEZ VALLEY CHARTER SCHOOL, INC | SANTA YNEZ, CA | Mechanics Bank |
| $2–5 million | SANTOS MONTEMAYOR FARM LABOR CONTRACTOR INC. | DELANO, CA | Mechanics Bank |
| $150,000–350,000 | SARATOGA RESORT VILLAS | KISSIMMEE, FL | Mechanics Bank |
| $350,000–1 million | SAVINO FARMS, INC. | SANTA MARIA, CA | Mechanics Bank |
| $150,000–350,000 | SAX AND ROSCOE CONSTRUCTION, INC | NAPA, CA | Mechanics Bank |
| $350,000–1 million | SCANDIC SPRINGS, INC. | SAN LEANDRO, CA | Mechanics Bank |
| $150,000–350,000 | SCAPE GROUP, INC. | PALM DESERT, CA | Mechanics Bank |
| $350,000–1 million | SCHAFFNER DAIRY INC | HOLTVILLE, CA | Mechanics Bank |
| $150,000–350,000 | SCHARF FARMS INC | AMITY, OR | Mechanics Bank |
| $2–5 million | SCHEID VINEYARDS CALIFORNIA INC. | SALINAS, CA | Mechanics Bank |
| $150,000–350,000 | SCHOOL HOUSE, INC. | SANGER, CA | Mechanics Bank |
| $150,000–350,000 | SCHOOL OF THE MADELEINE | BERKELEY, CA | Mechanics Bank |
| $150,000–350,000 | SCHUG WINERY LLC | SONOMA, CA | Mechanics Bank |
| $350,000–1 million | SCOTT P RYAN INVESTMENTS CORP | BAKERSFIELD, CA | Mechanics Bank |
| $150,000–350,000 | SCREENMOBILE CORPORATION | THOUSAND PALMS, CA | Mechanics Bank |
| $150,000–350,000 | SCRIPTWORKS | WALNUT CREEK, CA | Mechanics Bank |
| $150,000–350,000 | SEA BREEZE HARVESTING | CASTROVILLE, CA | Mechanics Bank |
| $350,000–1 million | SEA MIST FARMS, LLC | CASTROVILLE, CA | Mechanics Bank |
| $150,000–350,000 | SEA SMOKE, INC. | LOMPOC, CA | Mechanics Bank |
| $150,000–350,000 | SEARLE ELECTRIC INC | MONTEREY, CA | Mechanics Bank |
| $150,000–350,000 | SEARSON BODY SHOP, INC. | SALINAS, CA | Mechanics Bank |
| $350,000–1 million | SECURETECH FENCE SYSTEMS, INC. | SAN JOSE, CA | Mechanics Bank |
| $150,000–350,000 | SEHATI JEWELRY COUTURE, INC. | VENTURA, CA | Mechanics Bank |
| $150,000–350,000 | SEMICONDUCTOR EQUIPMENT CORPORATION | MOORPARK, CA | Mechanics Bank |
| $350,000–1 million | SENSYS GATSO USA | BEVERLY, MA | Mechanics Bank |
| $350,000–1 million | SEQUOIA ORANGE COMPANY INC. | EXETER, CA | Mechanics Bank |
| $150,000–350,000 | SEROLOGICAL RESEARCH INSTITUTE | RICHMOND, CA | Mechanics Bank |
| $150,000–350,000 | SEVA FOUNDATION | BERKELEY, CA | Mechanics Bank |
| $150,000–350,000 | SHADY ACRES DAIRY LP | VISALIA, CA | Mechanics Bank |
| $150,000–350,000 | SHAFTER-WASCO INVESTMENT CO. | SHAFTER, CA | Mechanics Bank |
| $1–2 million | SHANNON BROS. CO. | TULARE, CA | Mechanics Bank |
| $150,000–350,000 | SHAR-CRAFT, INC. | BAKERSFIELD, CA | Mechanics Bank |
| $350,000–1 million | SHASTA FOREST PRODUCTS, INC | YREKA, CA | Mechanics Bank |
| $150,000–350,000 | SHELTER ROOFING & SOLAR CONSTRUCTION | MOORPARK, CA | Mechanics Bank |
| $350,000–1 million | SHIELD COMMERCIAL INSURANCE SERVICES, INC. | PALM DESERT, CA | Mechanics Bank |
| $350,000–1 million | SHOWSCAPES INC | CAMARILLO, CA | Mechanics Bank |
| $350,000–1 million | SIEGEL & STRAIN ARCHITECTS | EMERYVILLE, CA | Mechanics Bank |
| $150,000–350,000 | SIERRA AIR & ELECTRIC | IMPERIAL, CA | Mechanics Bank |
| $150,000–350,000 | SIERRA DEL TIGRE FARMS | SANTA MARIA, CA | Mechanics Bank |
| $2–5 million | SIERRA MEDICAL SERVICES ALLIANCE/ RIGGS AMBULANCE SERVICE | RENO, NV | Mechanics Bank |
| $150,000–350,000 | SIERRA VISTA RESIDENTIAL CARE HOME, INC. | FARMERSVILLE, CA | Mechanics Bank |
| $150,000–350,000 | SIGNS OF SUCCESS, INC | SANTA MARIA, CA | Mechanics Bank |
| $2–5 million | SILENT SPRINGS LLC | CAMARILLO, CA | Mechanics Bank |
| $5–10 million | SILICON VALLEY TECHNICAL STAFFING | OAKLAND, CA | Mechanics Bank |
| $1–2 million | SILVA FARMS, LLC | GONZALES, CA | Mechanics Bank |
| $350,000–1 million | SILVERTHORN RESORT INC | REDDING, CA | Mechanics Bank |
| $150,000–350,000 | SILVERWOOD LANDSCAPE CONSTRUCTION, INC. | SANTA ANA, CA | Mechanics Bank |
| $350,000–1 million | SISKIYOU DEVELOPMENT COMPANY, INC. | WEED, CA | Mechanics Bank |
| $150,000–350,000 | SISKIYOU EYE CENTER | ASHLAND, OR | Mechanics Bank |
| $350,000–1 million | SISKIYOU PROFESSIONAL MEDICAL SERVICE, PROF CORP | YREKA, CA | Mechanics Bank |
| $150,000–350,000 | SITECARE LANDSCAPE MAINTENANCE | RICHMOND, CA | Mechanics Bank |
| $350,000–1 million | SKIM ANALYTICAL INC. | HOBOKEN, NJ | Mechanics Bank |
| $150,000–350,000 | SKYLINE DAIRY | TULARE, CA | Mechanics Bank |
| $150,000–350,000 | SLATE GEOTECHNICAL CONSULTANTS, INC. | OAKLAND, CA | Mechanics Bank |
| $150,000–350,000 | SLH FARMS INC | GONZALES, CA | Mechanics Bank |
| $150,000–350,000 | SMALL TOWN CONSTRUCTION, LLC | ROSEVILLE, CA | Mechanics Bank |
| $1–2 million | SMD LOGISTICS, INC | HEBER, CA | Mechanics Bank |
| $150,000–350,000 | SMITH & SONS CONCRETE, INC. | SOMIS, CA | Mechanics Bank |
| $150,000–350,000 | SMITH & SONS RESTORATION & CONSTRUCTION INC | ARROYO GRANDE, CA | Mechanics Bank |
| $150,000–350,000 | SMITH PAVING | VENTURA, CA | Mechanics Bank |
| $150,000–350,000 | SMITH'S ALARMS AND ELECTRONICS | NIPOMO, CA | Mechanics Bank |
| $150,000–350,000 | SMITTEN CORP | BAKERSFIELD, CA | Mechanics Bank |
| $350,000–1 million | SNYDER FUNERAL HOMES, INC. | MANSFIELD, OH | Mechanics Bank |
| $2–5 million | SO MO CO LABOR SUPPLY | GREENFIELD, CA | Mechanics Bank |
| $1–2 million | SOCAL BERRY GROWERS, LLC | VENTURA, CA | Mechanics Bank |
| $350,000–1 million | SOILS ENGINEERING, INC. | BAKERSFIELD, CA | Mechanics Bank |
| $150,000–350,000 | SOLANO KIDNEY CARE | VACAVILLE, CA | Mechanics Bank |
| $150,000–350,000 | SOLID ROCK RANCHES | BRAWLEY, CA | Mechanics Bank |
| $150,000–350,000 | SOMM INC | SONOMA, CA | Mechanics Bank |
| $150,000–350,000 | SONOMA DESIGN APPAREL & PROMOTIONS INC | SANTA ROSA, CA | Mechanics Bank |
| $2–5 million | SORRENTO BERRY FARMS LLC | CAMARILLO, CA | Mechanics Bank |
| $1–2 million | SOUTH COAST WINERY INC | TEMECULA, CA | Mechanics Bank |
| $150,000–350,000 | SOUTH CORNER DAIRY | VISALIA, CA | Mechanics Bank |
| $150,000–350,000 | SOUTH COUNTY DRYWALL & PLASTERING, INC | HOLLISTER, CA | Mechanics Bank |
| $150,000–350,000 | SOUTH CREEK DAIRY | EARLIMART, CA | Mechanics Bank |
| $150,000–350,000 | SOUTHERN CALIFORNIA DESERT RETINA CONSULTANTS MEDICAL CORP | PALM DESERT, CA | Mechanics Bank |
| $350,000–1 million | SPANOS PRZETAK, A PROFESSIONAL LAW CORPORATION | OAKLAND, CA | Mechanics Bank |
| $150,000–350,000 | SPECIAL TREATMENT EDUCATION AND PREVENTION SERVICES, INC | BAKERSFIELD, CA | Mechanics Bank |
| $150,000–350,000 | SPENCERS RESTAURANTS, INC | BAKERSFIELD, CA | Mechanics Bank |
| $350,000–1 million | SPIESS CONSTRUCTION CO, INC. | SANTA MARIA, CA | Mechanics Bank |
| $150,000–350,000 | SPLASH CAFE INC. | SAN LUIS OBISPO, CA | Mechanics Bank |