| $350,000–1 million | SAN ANTONIO HEAD & NECK SURGICAL ASSOCIATES, P.A. | SAN ANTONIO, TX | Zions Bank, A Division of |
| $350,000–1 million | SAN ANTONIO HEALTH SERVICE CORP | SAN ANTONIO, TX | BBVA USA |
| $150,000–350,000 | SAN ANTONIO HEALTHCARE CENTER | SAN ANTONIO, TX | Lone Star National Bank |
| $150,000–350,000 | SAN ANTONIO HOME CARE ASSISTANCE | SAN ANTONIO, TX | First Bank of the Lake |
| $350,000–1 million | SAN ANTONIO INSTITUTE OF MEDICINE INC. | SAN ANTONIO, TX | Frost Bank |
| $350,000–1 million | SAN ANTONIO KIDNEY DISEASE CENTER, PHYSICIANS GROUP PLLC | SAN ANTONIO, TX | Zions Bank, A Division of |
| $350,000–1 million | SAN ANTONIO LIFETIME RECOVERY, INC. | SAN ANTONIO, TX | Frost Bank |
| $2–5 million | SAN ANTONIO LIGHTHOUSE FOR THE BLIND | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | SAN ANTONIO LITTLE THEATRE INC | SAN ANTONIO, TX | Frost Bank |
| $1–2 million | SAN ANTONIO MASONRY & TOOL SUP | SAN ANTONIO, TX | Vantage Bank Texas |
| $350,000–1 million | SAN ANTONIO METROPOLITAN MINISTRY, INC. | SAN ANTONIO, TX | Broadway National Bank |
| $350,000–1 million | SAN ANTONIO MISSIONS BASEBALL CLUB, INC. | SAN ANTONIO, TX | Frost Bank |
| $350,000–1 million | SAN ANTONIO MUSEUM OF ART | SAN ANTONIO, TX | BBVA USA |
| $150,000–350,000 | SAN ANTONIO PET CARE NORTHWEST, P.C. | SAN ANTONIO, TX | Live Oak Banking Company |
| $150,000–350,000 | SAN ANTONIO PETROLEUM CLUB | SAN ANTONIO, TX | Broadway National Bank |
| $350,000–1 million | SAN ANTONIO PODIATRY ASSOCIATES, PLLC | SAN ANTONIO, TX | First United Bank and Trust Company |
| $350,000–1 million | SAN ANTONIO PREMIER INTERNAL MEDICINE PLLC | SAN ANTONIO, TX | Vantage Bank Texas |
| $350,000–1 million | SAN ANTONIO PREVENTATIVE & DIAGNOSTIC MEDICINE PA | SAN ANTONIO, TX | Broadway National Bank |
| $150,000–350,000 | SAN ANTONIO PROFESSIONAL BEAUTY, LLC | SAN ANTONIO, TX | Jefferson Bank |
| $150,000–350,000 | SAN ANTONIO REGION JFON | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | SAN ANTONIO REPORT | SAN ANTONIO, TX | The Bank of San Antonio |
| $350,000–1 million | SAN ANTONIO RESIDENCE EMPLOYMENT LLC | SAN ANTONIO, TX | Fifth Third Bank |
| $350,000–1 million | SAN ANTONIO RETAIL MERCHANTS ASSOCIATION | SAN ANTONIO, TX | The Bank of San Antonio |
| $150,000–350,000 | SAN ANTONIO SNACKS AND VENDING, L.P. | SAN ANTONIO, TX | Broadway National Bank |
| $150,000–350,000 | SAN ANTONIO SPORTS FOUNDATION | SAN ANTONIO, TX | Frost Bank |
| $350,000–1 million | SAN ANTONIO STEEL COMPANY | SAN ANTONIO, TX | TransPecos Banks, SSB. |
| $350,000–1 million | SAN ANTONIO SURGICAL ARTS, PA | SAN ANTONIO, TX | Frost Bank |
| $350,000–1 million | SAN ANTONIO SURGICAL ASSISTANTS, INC. | SAN ANTONIO, TX | The Bank of San Antonio |
| $150,000–350,000 | SAN ANTONIO TESTING LABORATORY, LLC | SAN ANTONIO, TX | Comerica Bank |
| $150,000–350,000 | SAN ANTONIO TITLE SERVICES, INC. | SAN ANTONIO, TX | The Bank of San Antonio |
| $350,000–1 million | SAN ANTONIO VASCULAR AND ENDOVASCULAR CLINIC PLLC | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | SAN ANTONIO VASCULAR SPECIALISTS CORP | SAN ANTONIO, TX | Western Alliance Bank |
| $1–2 million | SAN ANTONIO WINGS HOLDING CO. LLC | SAN ANTONIO, TX | City National Bank of Florida |
| $350,000–1 million | SAN ANTONIO WINGS INC | SAN ANTONIO, TX | City National Bank of Florida |
| $150,000–350,000 | SAN ANTONIO YOUTH FOR CHRIST | SAN ANTONIO, TX | Frost Bank |
| $2–5 million | SAN ANTONIO ZOOLOGICAL SOCIETY | SAN ANTONIO, TX | Texas Capital Bank, National Association |
| $150,000–350,000 | SAN ANTONIO'S INCREDIBLE PIZZA COMPANY, LLC | SAN ANTONIO, TX | Regent Bank |
| $150,000–350,000 | SAN MARCOS NEUROLOGY ASSOCIATES, PA. | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | SAN MIGUEL, INC | SAN ANTONIO, TX | International Bank of Commerce |
| $350,000–1 million | SAN RAFAEL HEALTHCARE INCORPORATED | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | SANCHEZ-SALAZAR & ASSOCIATES, LLC | SAN ANTONIO, TX | JPMorgan Chase Bank, National Association |
| $150,000–350,000 | SANCHOS CANTINA LLC | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | SANDBOX BAR LLC | SAN ANTONIO, TX | TransPecos Banks, SSB. |
| $350,000–1 million | SANDOVAL TECHNOLOGY SOLUTIONS, LLC. DBA SANDTECH SOLUTIONS | SAN ANTONIO, TX | Live Oak Banking Company |
| $150,000–350,000 | SANJIV R. KUMAR, MD PA | SAN ANTONIO, TX | The Bank of San Antonio |
| $150,000–350,000 | SANKEY EQUIPMENT COMPANY, INC. | SAN ANTONIO, TX | Broadway National Bank |
| $350,000–1 million | SANTANA PRIMARY HOME CARE INC | SAN ANTONIO, TX | International Bank of Commerce |
| $1–2 million | SANTEX INTERNATIONAL TRUCKS, INC | SAN ANTONIO, TX | Frost Bank |
| $350,000–1 million | SANTOYO WEHMEYER P.C. | SAN ANTONIO, TX | The Bank of San Antonio |
| $150,000–350,000 | SAPTA SYSTEMS, LLC | SAN ANTONIO, TX | Bank of America, National Association |
| $2–5 million | SARLP-RESORT OWNER, LLC | SAN ANTONIO, TX | First United Bank and Trust Company |
| $150,000–350,000 | SASALITO CANTINA INC | SAN ANTONIO, TX | The Karnes County National Bank |
| $150,000–350,000 | SASPINE, LLC | SAN ANTONIO, TX | Bank of America, National Association |
| $350,000–1 million | SAT PARTNERS, LP | SAN ANTONIO, TX | Vantage Bank Texas |
| $350,000–1 million | SAT RADIO COMMUNICATIONS, LTD.DBA INDUST RIAL COMMUNICATIONS | SAN ANTONIO, TX | JPMorgan Chase Bank, National Association |
| $350,000–1 million | SATEX PLUMBING, INC. | SAN ANTONIO, TX | Broadway National Bank |
| $150,000–350,000 | SATRAC, INC. | SAN ANTONIO, TX | Vantage Bank Texas |
| $350,000–1 million | SAVE CLEANERS | SAN ANTONIO, TX | Wells Fargo Bank, National Association |
| $350,000–1 million | SAWI LLC | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | SB CRANE HOLDINGS LLC | SAN ANTONIO, TX | MetaBank, National Association |
| $150,000–350,000 | SB VALUE PAARTNERS LP | SAN ANTONIO, TX | Broadway National Bank |
| $2–5 million | SBC AUTOMOTIVE LTD | SAN ANTONIO, TX | Truist Bank d/b/a Branch Banking & Trust Co |
| $350,000–1 million | SC SHINES, PLLC | SAN ANTONIO, TX | Broadway National Bank |
| $150,000–350,000 | SCHILOS, INC. | SAN ANTONIO, TX | Jefferson Bank |
| $150,000–350,000 | SCHMIDT MECHANICAL GROUP INC | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | SCHMOYER REINHARD LLP | SAN ANTONIO, TX | BBVA USA |
| $150,000–350,000 | SCHNEIDER STEEL LLC | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | SCHOENBAUM, CURPHY & SCANLAN, P.C. | SAN ANTONIO, TX | Broadway National Bank |
| $150,000–350,000 | SCHOLASTIC SHOOTING SPORTS FOUNDATION | SAN ANTONIO, TX | Wells Fargo Bank, National Association |
| $350,000–1 million | SCHOOL OF EXCELLENCE IN EDUCATION | SAN ANTONIO, TX | Frost Bank |
| $350,000–1 million | SCHULMAN, LOPEZ, HOFFER & ADELSTEIN, L.L.P. | SAN ANTONIO, TX | The Bank of San Antonio |
| $150,000–350,000 | SCREENFAST, LLC | SAN ANTONIO, TX | Broadway National Bank |
| $150,000–350,000 | SEA ISLAND - FORUM, LTD. | SAN ANTONIO, TX | Broadway National Bank |
| $150,000–350,000 | SEA ISLAND - I-10, LTD. | SAN ANTONIO, TX | Broadway National Bank |
| $150,000–350,000 | SEA ISLAND - INGRAM, LTD. | SAN ANTONIO, TX | Broadway National Bank |
| $150,000–350,000 | SEA ISLAND - SOUTH PARK, LTD. | SAN ANTONIO, TX | Broadway National Bank |
| $150,000–350,000 | SEA ISLAND BANDERA POINTE, LTD | SAN ANTONIO, TX | Broadway National Bank |
| $150,000–350,000 | SEA ISLAND DEVELOPMENT COMPANY, INC. | SAN ANTONIO, TX | Broadway National Bank |
| $150,000–350,000 | SEA ISLAND FOOD, INC. | SAN ANTONIO, TX | Broadway National Bank |
| $1–2 million | SECURELOGIX CORPORATION | SAN ANTONIO, TX | Silicon Valley Bank |
| $350,000–1 million | SECURITY BY BSG LLC | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | SEE YOU AT THE TOP, INC. | SAN ANTONIO, TX | Sunflower Bank, National Association |
| $150,000–350,000 | SEEMA A.DAR, M.D., P.A. | SAN ANTONIO, TX | BBVA USA |
| $1–2 million | SELRICO SERVICES, INC. | SAN ANTONIO, TX | JPMorgan Chase Bank, National Association |
| $350,000–1 million | SENDERO PARTNERS, LLC | SAN ANTONIO, TX | Texas Heritage Bank |
| $150,000–350,000 | SENIOR BUDDIES, LLC | SAN ANTONIO, TX | Frost Bank |
| $350,000–1 million | SENO MEDICAL INSTRUMENTS, INC | SAN ANTONIO, TX | JPMorgan Chase Bank, National Association |
| $150,000–350,000 | SENTRYSIX DEFENSE GROUP, INC | SAN ANTONIO, TX | Security Service FCU |
| $350,000–1 million | SEPULVEDA ENTERPRISES INCORPORATED | SAN ANTONIO, TX | Frost Bank |
| $350,000–1 million | SERENE LODGING INC | SAN ANTONIO, TX | PlainsCapital Bank |
| $150,000–350,000 | SERVICE COMPANY OF SAN ANTONIO, LLC | SAN ANTONIO, TX | Frost Bank |
| $350,000–1 million | SERVICE MECHANICAL GROUP LLC | SAN ANTONIO, TX | Wells Fargo Bank, National Association |
| $350,000–1 million | SETON HOME | SAN ANTONIO, TX | Frost Bank |
| $350,000–1 million | SEVEN OAKS WOMENS CENTER LLC | SAN ANTONIO, TX | Frost Bank |
| $350,000–1 million | SEVEN Q SEVEN | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | SEYMOUR'S GARAGE | SAN ANTONIO, TX | Vantage Bank Texas |
| $350,000–1 million | SHADOW MOUNTAIN RECOVERY LLC | SAN ANTONIO, TX | ServisFirst Bank |
| $350,000–1 million | SHAFER-ANDERSON HOLDINGS, LLC | SAN ANTONIO, TX | Jefferson Bank |
| $150,000–350,000 | SHARP EYE CONSULTANTS, P.A. | SAN ANTONIO, TX | Comerica Bank |
| $150,000–350,000 | SHAVANO FAMILY PRACTICE, P.A. | SAN ANTONIO, TX | Jefferson Bank |