| $350,000–1 million | WHIRLWIND VENTURES INVESTMENTS | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | WHITAKER INSURANCE ASSOCIATES, INC. | SAN ANTONIO, TX | Broadway National Bank |
| $150,000–350,000 | WHITBY ROAD ALLIANCE, INC. | SAN ANTONIO, TX | Texas Partners Bank |
| $150,000–350,000 | WHITE CONLEE BUILDERS, LTD. | SAN ANTONIO, TX | Broadway National Bank |
| $150,000–350,000 | WHITE STONE CUSTOM HOMES, LTD | SAN ANTONIO, TX | International Bank of Commerce |
| $150,000–350,000 | WHOLE PETS MARKET, LLC | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | WILBORN STEEL COMPANY, LTD | SAN ANTONIO, TX | Frost Bank |
| $350,000–1 million | WILDLIFE PARTNERS, LLC | SAN ANTONIO, TX | Broadway National Bank |
| $150,000–350,000 | WILDWOOD MANAGEMENT GROUP, INC | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | WILLCOX & ASSOCIATES, INC. | SAN ANTONIO, TX | Texas Partners Bank |
| $150,000–350,000 | WILLCOX METAL FABRICATORS, LLC | SAN ANTONIO, TX | Vantage Bank Texas |
| $350,000–1 million | WILLIAM ALEC TISDALL MD PA | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | WILLIAMS, CROW, MASK LLP | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | WINCHESTER OIL & GAS LLC | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | WINCREST ANIMAL HOSPITAL, INC. | SAN ANTONIO, TX | Jefferson Bank |
| $150,000–350,000 | WINGS OF HEALTH, INC. | SAN ANTONIO, TX | Frost Bank |
| $1–2 million | WITTE MUSEUM | SAN ANTONIO, TX | Frost Bank |
| $1–2 million | WITTE MUSEUM | SAN ANTONIO, TX | Frost Bank |
| $350,000–1 million | WJP PARTNERSHIP LTD | SAN ANTONIO, TX | Jefferson Bank |
| $150,000–350,000 | WOK INN, INC. | SAN ANTONIO, TX | Frost Bank |
| $350,000–1 million | WOMEN PARTNERS IN OB/GYN, P.A. | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | WOMEN'S CENTER AT WESTOVER HILLS, PLLC | SAN ANTONIO, TX | JPMorgan Chase Bank, National Association |
| $150,000–350,000 | WONDER CPA FIRM, PC | SAN ANTONIO, TX | First Source Federal Credit Union |
| $150,000–350,000 | WOOD ENT CO INC. | SAN ANTONIO, TX | Itria Ventures LLC |
| $150,000–350,000 | WOOD ENT CO. INC | SAN ANTONIO, TX | Renasant Bank |
| $150,000–350,000 | WOODCO MILLWORK, LTD | SAN ANTONIO, TX | Frost Bank |
| $350,000–1 million | WOODTOOLS OF TEXAS, LTD. | SAN ANTONIO, TX | Zions Bank, A Division of |
| $150,000–350,000 | WORKERS CLINIC, INC. | SAN ANTONIO, TX | Frost Bank |
| $1–2 million | WORKPLACE RESOURCE LLC | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | WORKSPACE SOLUTIONS MANAGEMENT LLC | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | WORLD AUDIO AND LIGHTS, LLC | SAN ANTONIO, TX | Frost Bank |
| $350,000–1 million | WORLD TECHNICAL SERVICES, INC. | SAN ANTONIO, TX | JPMorgan Chase Bank, National Association |
| $350,000–1 million | WORLDWIDE PEST CONTROL, INC | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | WRICO CORPORATION | SAN ANTONIO, TX | Texas Partners Bank |
| $150,000–350,000 | WRIGHT VETERINARY PARTNERS, P.C. | SAN ANTONIO, TX | BayFirst National Bank |
| $350,000–1 million | WYATT LAW FIRM PLLC | SAN ANTONIO, TX | Itria Ventures LLC |
| $350,000–1 million | WYATT LAW FIRM PLLC | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | WYTEC INTERNATIONAL INC | SAN ANTONIO, TX | Bank of America, National Association |
| $2–5 million | X TECHNOLOGIES INC | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | Y BAR RANCH, LTD | SAN ANTONIO, TX | BOKF, National Association |
| $150,000–350,000 | YAM YAM, LP | SAN ANTONIO, TX | City Bank |
| $150,000–350,000 | YAMA LP | SAN ANTONIO, TX | City Bank |
| $150,000–350,000 | YAMAKARA LP | SAN ANTONIO, TX | City Bank |
| $150,000–350,000 | YARA LP | SAN ANTONIO, TX | City Bank |
| $1–2 million | YASH & LUJAN CONSULTING, INC. | SAN ANTONIO, TX | First Source Federal Credit Union |
| $150,000–350,000 | YATES COMPANY, LLC | SAN ANTONIO, TX | Frost Bank |
| $2–5 million | YC PARTNERS, LTD. | SAN ANTONIO, TX | Broadway National Bank |
| $150,000–350,000 | YES I CAN INCORPORATED | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | YES OUR KIDS CAN, INC. | SAN ANTONIO, TX | Vantage Bank Texas |
| $150,000–350,000 | YOUNG FOREVER MED SPA, LLC | SAN ANTONIO, TX | Broadway National Bank |
| $150,000–350,000 | YOUNG WOMENS CHRISTIAN ASSOCIATION OF SAN ANTONIO, TEXAS | SAN ANTONIO, TX | Frost Bank |
| $350,000–1 million | YOUTH EMPOWERMENT SERVICES INC. | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | Z & L CONCRETE CONTRACTORS, INC. | SAN ANTONIO, TX | Cross River Bank |
| $150,000–350,000 | Z EMPLOYMENT LLC | SAN ANTONIO, TX | Lone Star National Bank |
| $350,000–1 million | ZACCA CONSTRUCTION, LLC | SAN ANTONIO, TX | Third Coast Bank |
| $350,000–1 million | ZACHMAN ENTERPRISES, INC. | SAN ANTONIO, TX | Jefferson Bank |
| $150,000–350,000 | ZEDRIC'S LLC | SAN ANTONIO, TX | Texas Partners Bank |
| $350,000–1 million | ZH AIRPORT HOTEL, LLC | SAN ANTONIO, TX | Broadway National Bank |
| $350,000–1 million | ZH LANDMARK HOTEL, LLC | SAN ANTONIO, TX | Broadway National Bank |
| $2–5 million | ZIOS RESTAURANT COMPANY LLC | SAN ANTONIO, TX | Arizona Bank and Trust, A Division of HTLF Bank |
| $1–2 million | ZIOS RESTAURANT COMPANY LLC | SAN ANTONIO, TX | Arizona Bank and Trust, A Division of HTLF Bank |
| $150,000–350,000 | ZULA PARTNERSHIP | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | ZURICH INTERNATIONAL PROPERTIES, INC | SAN ANTONIO, TX | Vantage Bank Texas |