| $150,000–350,000 | SIERRA SMILES LLC | RENO, NV | Umpqua Bank |
| $150,000–350,000 | SIERRA VALLEY MECHANICAL | RANCHO CORDOVA, CA | Umpqua Bank |
| $150,000–350,000 | SIERRA VETERINARY CARE | SONORA, CA | Umpqua Bank |
| $150,000–350,000 | SIFT CUPCAKE & DESSERT BAR | SANTA ROSA, CA | Umpqua Bank |
| $5–10 million | SIGMA DESIGN, INC. | CAMAS, WA | Umpqua Bank |
| $350,000–1 million | SIGN FRACTURE CARE INTERNATIONAL | RICHLAND, WA | Umpqua Bank |
| $350,000–1 million | SIGNATURE DEVELOPMENT GROUP, INC. | OAKLAND, CA | Umpqua Bank |
| $150,000–350,000 | SIGNS NOW NORTHWEST, INC. | PORTLAND, OR | Umpqua Bank |
| $2–5 million | SILLER BROTHERS, INC. | YUBA CITY, CA | Umpqua Bank |
| $350,000–1 million | SILVEIRA BUICK GMC, INC | HEALDSBURG, CA | Umpqua Bank |
| $350,000–1 million | SILVEIRA CHEVROLET, INC | SONOMA, CA | Umpqua Bank |
| $150,000–350,000 | SILVER MOON BREWING | BEND, OR | Umpqua Bank |
| $150,000–350,000 | SILVERADO ORCHARDS, LLC | SAINT HELENA, CA | Umpqua Bank |
| $150,000–350,000 | SILVESTRE'S MECHANICAL COMPANY, INC. | LODI, CA | Umpqua Bank |
| $350,000–1 million | SIMON G JEWELRY INC | GLENDALE, CA | Umpqua Bank |
| $1–2 million | SIMPLICITY HOMES, LLC | REDMOND, OR | Umpqua Bank |
| $150,000–350,000 | SIMS ELECTRIC INC | ROSEBURG, OR | Umpqua Bank |
| $1–2 million | SINGING HILLS GOLF RESORT | EL CAJON, CA | Umpqua Bank |
| $350,000–1 million | SINGLE HANDED CONSULTING, INC. | OLYMPIA, WA | Umpqua Bank |
| $150,000–350,000 | SINGLEMIND CONSULTING, INC | LAKE OSWEGO, OR | Umpqua Bank |
| $150,000–350,000 | SIR COLUMBIA KNOLL ASSOCIATES LIMITED PARTNERSHIP | PORTLAND, OR | Umpqua Bank |
| $1–2 million | SIRI AND SON FARMS, INC | SAINT PAUL, OR | Umpqua Bank |
| $150,000–350,000 | SISKIYOU BUCKLE CO., INC. | MEDFORD, OR | Umpqua Bank |
| $150,000–350,000 | SISKIYOU CASCADE RESOURCES LLC | MEDFORD, OR | Umpqua Bank |
| $150,000–350,000 | SISKIYOU CORPORATION | GRANTS PASS, OR | Umpqua Bank |
| $150,000–350,000 | SIX STAR FRAMING CONCEPTS INC | OCEANSIDE, CA | Umpqua Bank |
| $150,000–350,000 | SKAUG BROTHERS INC | MOSES LAKE, WA | Umpqua Bank |
| $5–10 million | SKILLS INC | AUBURN, WA | Umpqua Bank |
| $150,000–350,000 | SKY BROTHERS, LLC | PUYALLUP, WA | Umpqua Bank |
| $150,000–350,000 | SKYLINE PLACE OPERATIONS LP | VANCOUVER, WA | Umpqua Bank |
| $350,000–1 million | SKYLINE TILE & MARBLE, INC | WOODINVILLE, WA | Umpqua Bank |
| $150,000–350,000 | SLD TECHNOLOGY, INC | PORTLAND, OR | Umpqua Bank |
| $150,000–350,000 | SLE CONSTRUCTION, INC. | EL DORADO HILLS, CA | Umpqua Bank |
| $150,000–350,000 | SLEEP TECHNOLOGIES LTD | CLACKAMAS, OR | Umpqua Bank |
| $350,000–1 million | SMALL BUSINESS INNOVATIONS INC | PORTLAND, OR | Umpqua Bank |
| $150,000–350,000 | SMITH GOODFRIEND, P.S. | SEATTLE, WA | Umpqua Bank |
| $150,000–350,000 | SMITH RANCHES | MARYSVILLE, CA | Umpqua Bank |
| $350,000–1 million | SMITH TEAMAKER, LLC | PORTLAND, OR | Umpqua Bank |
| $1–2 million | SMK TRI-CITIES, INC. | PASCO, WA | Umpqua Bank |
| $150,000–350,000 | SMRK LLC | CORVALLIS, OR | Umpqua Bank |
| $150,000–350,000 | SNIDER LEASING CORP. | SACRAMENTO, CA | Umpqua Bank |
| $2–5 million | SNIDER MOTORS, INC. | ELK GROVE, CA | Umpqua Bank |
| $150,000–350,000 | SNOQUALMIE FALLS BREWERY, LLC | SNOQUALMIE, WA | Umpqua Bank |
| $150,000–350,000 | SNOQUALMIE INDIAN TRIBE | SNOQUALMIE, WA | Umpqua Bank |
| $2–5 million | SO CAL PETROLEUM TRANSPORT INC | COLTON, CA | Umpqua Bank |
| $150,000–350,000 | SOCIAL TECH UNLIMITED, LLC | BLAINE, WA | Umpqua Bank |
| $150,000–350,000 | SOCKEYE CONSTRUCTION CORPORATION | KENT, WA | Umpqua Bank |
| $150,000–350,000 | SOD LLC | GRANTS PASS, OR | Umpqua Bank |
| $350,000–1 million | SOHA & LANG, P.S. | SEATTLE, WA | Umpqua Bank |
| $150,000–350,000 | SOMERSET COUNSELING CENTER LLC | RICHLAND, WA | Umpqua Bank |
| $150,000–350,000 | SONG TECHNOLOGIES LLC | HUNTS POINT, WA | Umpqua Bank |
| $350,000–1 million | SONOMA SPECIALTY FOODS, INC. | SONOMA, CA | Umpqua Bank |
| $150,000–350,000 | SOUND PROPELLER SYSTEMS, LLC | SEATTLE, WA | Umpqua Bank |
| $350,000–1 million | SOUTH OGDEN OPERATIONS LLC | OGDEN, UT | Umpqua Bank |
| $150,000–350,000 | SOUTH PLACER HEATING AND AIR, INC. | LOOMIS, CA | Umpqua Bank |
| $350,000–1 million | SOUTH SALEM REHABILITATION, LLC | SALEM, OR | Umpqua Bank |
| $150,000–350,000 | SOUTH SOUND SOLAR INC | OLYMPIA, WA | Umpqua Bank |
| $150,000–350,000 | SOUTHERN OREGON HEATING & AIR CONDITIONING, INC. | MEDFORD, OR | Umpqua Bank |
| $350,000–1 million | SOUTHERN OREGON SANITATION, INC | GRANTS PASS, OR | Umpqua Bank |
| $350,000–1 million | SOUTHERN OREGON SKYWAYS, INC | MEDFORD, OR | Umpqua Bank |
| $2–5 million | SOUTHPORT INVESTMENTS, LLC | NORTH BEND, OR | Umpqua Bank |
| $2–5 million | SOUTHWEST MATERIAL HANDLING IN | JURUPA VALLEY, CA | Umpqua Bank |
| $150,000–350,000 | SOUTHWEST PHYSICAL THERAPY, L.L.C. | COOS BAY, OR | Umpqua Bank |
| $350,000–1 million | SOUTHWIND DG LLC | LAS VEGAS, NV | Umpqua Bank |
| $1–2 million | SOUTHWIND FOODS, LLC | LONG BEACH, CA | Umpqua Bank |
| $1–2 million | SPACE MICRO INC. | SAN DIEGO, CA | Umpqua Bank |
| $150,000–350,000 | SPAGHETTI EMPIRE, INC. | LINCOLN, CA | Umpqua Bank |
| $350,000–1 million | SPECIALTY PAVING INC. | LINCOLN, CA | Umpqua Bank |
| $150,000–350,000 | SPECIALTY SERVICES II, LLC | PORT ANGELES, WA | Umpqua Bank |
| $350,000–1 million | SPECIALTY STEEL POST-TENSIONING, INC. | SANTA ANA, CA | Umpqua Bank |
| $150,000–350,000 | SPEECHLESS, INC | SAN FRANCISCO, CA | Umpqua Bank |
| $1–2 million | SPEEDEE MART, INC. | HENDERSON, NV | Umpqua Bank |
| $150,000–350,000 | SPIELMAN COFFEE AND BAGEL COMPANY LLC | PORTLAND, OR | Umpqua Bank |
| $150,000–350,000 | SPINAL DIAGNOSTICS, PC | TUALATIN, OR | Umpqua Bank |
| $150,000–350,000 | SPINETTI MACHINERY | RENO, NV | Umpqua Bank |
| $150,000–350,000 | SPLENDID PLEASURES LLC | SHORELINE, WA | Umpqua Bank |
| $350,000–1 million | SPOKANE ADDICTION RECOVERY CENTERS | SPOKANE, WA | Umpqua Bank |
| $350,000–1 million | SPOKANE EYE CLINIC, PS | SPOKANE, WA | Umpqua Bank |
| $2–5 million | SPOKANE INDUSTRIES, INC. | SPOKANE VALLEY, WA | Umpqua Bank |
| $150,000–350,000 | SPOKANE SOFTWARE SYSTEMS, INC. | SPOKANE VALLEY, WA | Umpqua Bank |
| $150,000–350,000 | SPORK, LLC | BEND, OR | Umpqua Bank |
| $150,000–350,000 | SPORT & REHAB PHYSICAL THERAPY, INCORPORATED | LOS BANOS, CA | Umpqua Bank |
| $150,000–350,000 | SPORTY'S, INC. | MOSES LAKE, WA | Umpqua Bank |
| $150,000–350,000 | SPOTLIGHT EVENTS, INC | EAGLE, ID | Umpqua Bank |
| $1–2 million | SPRINGFIELD FAMILY PHYSICIANS, LLP | SPRINGFIELD, OR | Umpqua Bank |
| $350,000–1 million | SPRINTER TRUCKING INC | WINSTON, OR | Umpqua Bank |
| $350,000–1 million | SPROUL TIMBER SALVAGE INC | MYRTLE POINT, OR | Umpqua Bank |
| $150,000–350,000 | SPROUT FORESTRY INC | CENTRAL POINT, OR | Umpqua Bank |
| $150,000–350,000 | SPRUCE STREET SCHOOL | SEATTLE, WA | Umpqua Bank |
| $150,000–350,000 | SPRYSCAPES CONSTRUCTION, INC. | SAN FRANCISCO, CA | Umpqua Bank |
| $150,000–350,000 | SRAN AG., INCORPORATED | KERMAN, CA | Umpqua Bank |
| $150,000–350,000 | SRI-ROCHLIN CONSTRUCTION SERVICES JV | BELLEVUE, WA | Umpqua Bank |
| $350,000–1 million | SRNM HOLDINGS, INC. | PORTLAND, OR | Umpqua Bank |
| $1–2 million | SS SKIKOS INCORPORATED | SANTA ROSA, CA | Umpqua Bank |
| $150,000–350,000 | SSG LLC | RENO, NV | Umpqua Bank |
| $350,000–1 million | ST ANTHONY VILLAGE LLP | PORTLAND, OR | Umpqua Bank |
| $350,000–1 million | ST FRANCIS OF ASSISI PARISH | BURIEN, WA | Umpqua Bank |
| $350,000–1 million | ST JOHNS EVANGELICAL LUTHERAN CHURCH | NAPA, CA | Umpqua Bank |
| $150,000–350,000 | ST LEO PARISH | TACOMA, WA | Umpqua Bank |
| $150,000–350,000 | ST. AGATHA CATHOLIC CHURCH, PORTLAND, OREGON | PORTLAND, OR | Umpqua Bank |