| $350,000–1 million | SIMMS, INC | BEVERLY HILLS, CA | Western Alliance Bank |
| $150,000–350,000 | SIMS BUSINESS SYSTEMS | TEMPE, AZ | Western Alliance Bank |
| $350,000–1 million | SIN NOMBRE INCORPORATED | SAN DIEGO, CA | Western Alliance Bank |
| $350,000–1 million | SINGLE EAGLE, INC. | POWAY, CA | Western Alliance Bank |
| $150,000–350,000 | SJ CREATIONS | ENCINITAS, CA | Western Alliance Bank |
| $150,000–350,000 | SKOUSEN, GULBRANDSEN & PATIENCE, PLC | MESA, AZ | Western Alliance Bank |
| $350,000–1 million | SKYKIT LLC | MINNEAPOLIS, MN | Western Alliance Bank |
| $1–2 million | SKYLINE ADVANCED TECHNOLOGY SERVICES | CAMPBELL, CA | Western Alliance Bank |
| $350,000–1 million | SKYLINE CAPITAL BUILDERS, LLC | WALNUT CREEK, CA | Western Alliance Bank |
| $2–5 million | SKYLINE COMMERCIAL INTERIORS, INC. | SAN FRANCISCO, CA | Western Alliance Bank |
| $350,000–1 million | SKYLINE EDUCATION, INC. | CHANDLER, AZ | Western Alliance Bank |
| $350,000–1 million | SM SANTA CRUZ LIMITED PARTNERSHIP | LAKE OSWEGO, OR | Western Alliance Bank |
| $150,000–350,000 | SMART BAR USA, LLC | HENDERSON, NV | Western Alliance Bank |
| $150,000–350,000 | SMC CONSTRUCTION CO. | SPARKS, NV | Western Alliance Bank |
| $350,000–1 million | SMS RETAIL MANAGEMENT, LLC. | LAGUNA BEACH, CA | Western Alliance Bank |
| $350,000–1 million | SNIPES ENGINEERING, INC. | LA MESA, CA | Western Alliance Bank |
| $150,000–350,000 | SNIPP INTERACTIVE INC. | BETHESDA, MD | Western Alliance Bank |
| $1–2 million | SOCIAL ADVOCATES FOR YOUTH, SAN DIEGO, INC. | SAN DIEGO, CA | Western Alliance Bank |
| $350,000–1 million | SOCIETY OF ST. VINCENT DE PAUL OF ALAMEDA COUNTY | OAKLAND, CA | Western Alliance Bank |
| $1–2 million | SOCKET MOBILE, INC. | NEWARK, CA | Western Alliance Bank |
| $350,000–1 million | SOIREE VALET PARKING SERVICE, INC | SAN FRANCISCO, CA | Western Alliance Bank |
| $350,000–1 million | SOLAR GAIN, INC | TUCSON, AZ | Western Alliance Bank |
| $350,000–1 million | SOLIX TECHNOLOGIES INCORPORATED | SANTA CLARA, CA | Western Alliance Bank |
| $350,000–1 million | SOLO GROUP MANAGEMEN, INC. | SAN DIEGO, CA | Western Alliance Bank |
| $150,000–350,000 | SOLUTIONS SOURCES PROGRAMMING | SAN JOSE, CA | Western Alliance Bank |
| $1–2 million | SONORAN SCHOOLS | GILBERT, AZ | Western Alliance Bank |
| $150,000–350,000 | SONORAN STONE & STUCCO, INC. | MESA, AZ | Western Alliance Bank |
| $350,000–1 million | SOUND & SECURE, INC. | LAS VEGAS, NV | Western Alliance Bank |
| $350,000–1 million | SOUTHERN ARIZONA PAVING & CONSTRUCTION CO | TUCSON, AZ | Western Alliance Bank |
| $150,000–350,000 | SOUTHERN ARIZONA PERIODONTICS, P.L.C. | TUCSON, AZ | Western Alliance Bank |
| $1–2 million | SOUTHERN NEVADA JOINT MANAGEMENT CULINARY & BARTENDERS TRAINING FUND | NORTH LAS VEGAS, NV | Western Alliance Bank |
| $150,000–350,000 | SOUTHERN NEVADA SURGERY SPECIALISTS, LTD. | HENDERSON, NV | Western Alliance Bank |
| $150,000–350,000 | SOUTHERN NEVADA WELDING, INC. | LAS VEGAS, NV | Western Alliance Bank |
| $350,000–1 million | SOUTHGATE ACADEMY, INC. | TUCSON, AZ | Western Alliance Bank |
| $150,000–350,000 | SOUTHLAND MECHANICAL SERVICES | SPARKS, NV | Western Alliance Bank |
| $150,000–350,000 | SOUTHWEST ANIMAL HOSPITAL, PETER PERRON, D.V.M., LTD. | LAS VEGAS, NV | Western Alliance Bank |
| $1–2 million | SOUTHWEST AUTISM RESEARCH & RESOURCE CENTER | PHOENIX, AZ | Western Alliance Bank |
| $1–2 million | SOUTHWEST COLLEGE OF NATUROPATHIC MEDICINE & HEALTH SCIENCES INC | TEMPE, AZ | Western Alliance Bank |
| $150,000–350,000 | SOUTHWEST INSURANCE AGENTS ALLIANCE, LLC | GILBERT, AZ | Western Alliance Bank |
| $150,000–350,000 | SOUTHWEST SELF-STORAGE CORP. | SAN DIEGO, CA | Western Alliance Bank |
| $150,000–350,000 | SOUTHWEST SPECIALTIES, INC. | LAS VEGAS, NV | Western Alliance Bank |
| $150,000–350,000 | SOUTHWEST VETERINARY HOSPITAL, LTD. - RASMUSSON & MARTINI | RENO, NV | Western Alliance Bank |
| $350,000–1 million | SPA ENTERPRISES | OAKLAND, CA | Western Alliance Bank |
| $1–2 million | SPANISH SPRINGS CONSTRUCTION, INC. | SPARKS, NV | Western Alliance Bank |
| $350,000–1 million | SPARKLE CLEANERS, INC | TUCSON, AZ | Western Alliance Bank |
| $150,000–350,000 | SPEAK, INC | SAN DIEGO, CA | Western Alliance Bank |
| $350,000–1 million | SPECIALTY/SEDONA LOAN HOLDINGS LLC | SEDONA, AZ | Western Alliance Bank |
| $1–2 million | SPECTER OPS, INC | ALEXANDRIA, VA | Western Alliance Bank |
| $1–2 million | SPECTRA ELECTRICAL SERVICES, INC. | FLAGSTAFF, AZ | Western Alliance Bank |
| $350,000–1 million | SPECTRUM ACCOUNTABLE CARE COMPANY | LAS VEGAS, NV | Western Alliance Bank |
| $150,000–350,000 | SPEEDGAUGE, INC. | SAN FRANCISCO, CA | Western Alliance Bank |
| $350,000–1 million | SPORTRX LLC | SAN DIEGO, CA | Western Alliance Bank |
| $150,000–350,000 | SPRAY ART FINISHERS INC. | ESCONDIDO, CA | Western Alliance Bank |
| $150,000–350,000 | SPROTTE & WATSON ARCHITECTURE AND PLANNING, INC. | VISTA, CA | Western Alliance Bank |
| $150,000–350,000 | SPROWLS & COMPANY, PC | CHANDLER, AZ | Western Alliance Bank |
| $350,000–1 million | SPRUCE L.L.C. | RENO, NV | Western Alliance Bank |
| $350,000–1 million | SQS LA LLC | LAS VEGAS, NV | Western Alliance Bank |
| $150,000–350,000 | SQUARETWO INC | SAN FRANCISCO, CA | Western Alliance Bank |
| $150,000–350,000 | SR ARIZONA, LLC | LAS VEGAS, NV | Western Alliance Bank |
| $2–5 million | SSCW CORPORATE OFFICE, LLC | PHOENIX, AZ | Western Alliance Bank |
| $150,000–350,000 | SSM HOTELS LLC | CAMPBELL, CA | Western Alliance Bank |
| $350,000–1 million | ST. ALBERT THE GREAT CATHOLIC PARISH | RENO, NV | Western Alliance Bank |
| $2–5 million | ST. GEORGE AUTO SALES, INC. | MONTCLAIR, CA | Western Alliance Bank |
| $1–2 million | ST. MAR 2.0 INCORPORATED | ESCONDIDO, CA | Western Alliance Bank |
| $1–2 million | ST. MAR ENTERPRISES, INC. | ESCONDIDO, CA | Western Alliance Bank |
| $350,000–1 million | ST. VINCENT GENERAL HOSPITAL DISTRICT | LEADVILLE, CO | Western Alliance Bank |
| $150,000–350,000 | STADIUM USA, LLC | RENO, NV | Western Alliance Bank |
| $1–2 million | STAMFORD HOTEL OPCO LLC | STAMFORD, CT | Western Alliance Bank |
| $5–10 million | STARCORP, LLC | PHOENIX, AZ | Western Alliance Bank |
| $150,000–350,000 | STARDUST NON-PROFIT BUILDING SUPPLIES, INC | MESA, AZ | Western Alliance Bank |
| $2–5 million | STARPOINT RESORT GROUP, INC. | LAS VEGAS, NV | Western Alliance Bank |
| $150,000–350,000 | STEEL CONCEPTS, LLC | NORTH LAS VEGAS, NV | Western Alliance Bank |
| $150,000–350,000 | STEINERS MANAGEMENT CO., INC. | LAS VEGAS, NV | Western Alliance Bank |
| $150,000–350,000 | STEPHENSEN PEST CONTROL | NORTH LAS VEGAS, NV | Western Alliance Bank |
| $150,000–350,000 | STEPPING STONES ACADEMY INC. | PHOENIX, AZ | Western Alliance Bank |
| $150,000–350,000 | STEVEN C GARHARDT DDS LTD | LAS VEGAS, NV | Western Alliance Bank |
| $150,000–350,000 | STEVEN D. ROBINSON, D.D.S., LTD. | RENO, NV | Western Alliance Bank |
| $150,000–350,000 | STEVENS CRESTO ENGINEERING, INC. | SAN DIEGO, CA | Western Alliance Bank |
| $1–2 million | STEWART & SUNDELL CONCRETE, INC. | NORTH LAS VEGAS, NV | Western Alliance Bank |
| $350,000–1 million | STG AUTO SERVICE, INC. | MONTCLAIR, CA | Western Alliance Bank |
| $5–10 million | STINE ENTERPRISES, INC. | PHOENIX, AZ | Western Alliance Bank |
| $150,000–350,000 | STITCHED LIFESTYLE, LLC | LAS VEGAS, NV | Western Alliance Bank |
| $1–2 million | STOCKDALE MANAGEMENT LLC | SCOTTSDALE, AZ | Western Alliance Bank |
| $2–5 million | STONE PUBLISHING, INC. | SANTA CLARA, CA | Western Alliance Bank |
| $1–2 million | STONESCAPE PAVERS LLC | LAS VEGAS, NV | Western Alliance Bank |
| $150,000–350,000 | STORAGE SOLUTIONS TECHNOLOGY GROUP, INC | SANTA CLARA, CA | Western Alliance Bank |
| $150,000–350,000 | STOUT CONSTRUCTION SERVICES INC | MESA, AZ | Western Alliance Bank |
| $150,000–350,000 | STRATEGIC MARKET SOLUTIONS, INC. | CHANDLER, AZ | Western Alliance Bank |
| $2–5 million | STREAMLINE HEALTH, INC. | ALPHARETTA, GA | Western Alliance Bank |
| $1–2 million | STRELIC PLUMBING INC. | EL CAJON, CA | Western Alliance Bank |
| $350,000–1 million | STRICKBINE PUBLISHING, INC. | TEMPE, AZ | Western Alliance Bank |
| $2–5 million | STRONGMIND, INC. | CHANDLER, AZ | Western Alliance Bank |
| $350,000–1 million | STRUCTURES WEST, INC. | ESCONDIDO, CA | Western Alliance Bank |
| $150,000–350,000 | STUDY SMARTER LLC | DEL MAR, CA | Western Alliance Bank |
| $150,000–350,000 | SUBROSA INVESTIGATIONS, LLC | PHOENIX, AZ | Western Alliance Bank |
| $1–2 million | SUBWAY NEVADA, LLC | HENDERSON, NV | Western Alliance Bank |
| $350,000–1 million | SUGAR AND SCRIBE BAKERY AND FINE FOOD LLC | LA JOLLA, CA | Western Alliance Bank |
| $150,000–350,000 | SUITES L.P. | SAN DIEGO, CA | Western Alliance Bank |
| $1–2 million | SULLIVAN HILL REZ & ENGEL, APLC | SAN DIEGO, CA | Western Alliance Bank |
| $350,000–1 million | SUMMERWINDS RESORT MANAGEMENT COMPANY II, LLC | MYRTLE BEACH, SC | Western Alliance Bank |