| $150,000–350,000 | AMAZING SIDING OF SAN ANTONIO, INC. | SAN ANTONIO, TX | Frost Bank |
| $350,000–1 million | AMCAN ENERGY SERVICES CORP. | SAN ANTONIO, TX | Live Oak Banking Company |
| $150,000–350,000 | AMEDIA HOSPICE | SAN ANTONIO, TX | Capital One, National Association |
| $1–2 million | AMER TECHNOLOGY INC | SAN ANTONIO, TX | Bank of America, National Association |
| $350,000–1 million | AMERICAN ABATEMENT, LLC | SAN ANTONIO, TX | Broadway National Bank |
| $150,000–350,000 | AMERICAN COMMUNICATIONS & UTILITY LLC | SAN ANTONIO, TX | Frost Bank |
| $350,000–1 million | AMERICAN INTERIORS INC | SAN ANTONIO, TX | Broadway National Bank |
| $350,000–1 million | AMERICAN MAT & TIMBER | SAN ANTONIO, TX | Amarillo National Bank |
| $350,000–1 million | AMERICAN RESEARCH CORPORATION, INC | SAN ANTONIO, TX | JPMorgan Chase Bank, National Association |
| $1–2 million | AMERICAN ROOFING & METAL CO., INC. | SAN ANTONIO, TX | Texas Capital Bank, National Association |
| $150,000–350,000 | AMERICAN WEST LAUNDRY LLC | SAN ANTONIO, TX | Wallis Bank |
| $350,000–1 million | AMERISURVEYORS LLC | SAN ANTONIO, TX | Broadway National Bank |
| $350,000–1 million | AMERITEX ELEVATOR TEXAS, LLC | SAN ANTONIO, TX | Zions Bank, A Division of |
| $150,000–350,000 | AMG CONTRACTORS, LLC | SAN ANTONIO, TX | Frost Bank |
| $350,000–1 million | AMGREEN KARENA PARTNERSHIP, LTD | SAN ANTONIO, TX | International Bank of Commerce |
| $150,000–350,000 | AMISTAD HOMECARE INC. | SAN ANTONIO, TX | International Bank of Commerce |
| $150,000–350,000 | AMPM PIZZA, INC. | SAN ANTONIO, TX | Signature Bank |
| $150,000–350,000 | AMPSAFE LLC | SAN ANTONIO, TX | International Bank of Commerce |
| $150,000–350,000 | AMS OILFIELD SERVICES, LLC | SAN ANTONIO, TX | Lone Star Capital Bank, National Association |
| $150,000–350,000 | AMSTAR INC | SAN ANTONIO, TX | Texas Capital Bank, National Association |
| $150,000–350,000 | ANA T SAUCEDA, MD, PLLC | SAN ANTONIO, TX | Frost Bank |
| $350,000–1 million | ANALYTIC FOCUS LLC | SAN ANTONIO, TX | BBVA USA |
| $150,000–350,000 | ANCHOR HABILITATION SERVICES LLC | SAN ANTONIO, TX | Prosperity Bank |
| $1–2 million | ANCIRA MOTOR COMPANY | SAN ANTONIO, TX | Jefferson Bank |
| $1–2 million | ANCIRA NISSAN, INC. | SAN ANTONIO, TX | Jefferson Bank |
| $150,000–350,000 | ANDERSON ADVERTISING, INC. | SAN ANTONIO, TX | The Bank of San Antonio |
| $150,000–350,000 | ANDERSON JOHNS & YAO, CPAS, P.C. | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | ANDERSON MACHINERY SAN ANTONIO, INC. | SAN ANTONIO, TX | American Bank, National Association |
| $150,000–350,000 | ANDREW WEBER, DMD, MS, PLLC | SAN ANTONIO, TX | Live Oak Banking Company |
| $350,000–1 million | ANDY FOOD SERVICE INC | SAN ANTONIO, TX | JPMorgan Chase Bank, National Association |
| $350,000–1 million | ANEMOSTAT DOOR PRODUCTS, INC. | SAN ANTONIO, TX | Westfield Bank |
| $1–2 million | ANGEL STAFFING INCORPORATED | SAN ANTONIO, TX | Truist Bank d/b/a Branch Banking & Trust Co |
| $150,000–350,000 | ANGELS OF COMFORT INC | SAN ANTONIO, TX | JPMorgan Chase Bank, National Association |
| $150,000–350,000 | ANGELS VENTURES INC. | SAN ANTONIO, TX | Comerica Bank |
| $150,000–350,000 | ANGIE SAGE DDS PLLC | SAN ANTONIO, TX | BBVA USA |
| $350,000–1 million | ANIMAL DEFENSE LEAGUE OF TEXAS | SAN ANTONIO, TX | The Bank of San Antonio |
| $350,000–1 million | ANOINTED ANGELS CAREGIVERS INC | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | ANTIOCH MISSIONARY BAPTIST CHURCH | SAN ANTONIO, TX | Frost Bank |
| $1–2 million | ANTONIAN COLLEGE PREPARATORY HIGH | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | ANY BABY CAN OF SAN ANTONIO, INC | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | ANYTIME FUEL PROS LLC | SAN ANTONIO, TX | Lone Star National Bank |
| $350,000–1 million | APARTMENT SOLUTIONS, INC | SAN ANTONIO, TX | Broadway National Bank |
| $350,000–1 million | APEC, LLC | SAN ANTONIO, TX | Randolph-Brooks FCU |
| $150,000–350,000 | APEXMED, PLLC | SAN ANTONIO, TX | Frost Bank |
| $1–2 million | APPDDICTION STUDIO LIMITED LIABILITY CO | SAN ANTONIO, TX | Truist Bank d/b/a Branch Banking & Trust Co |
| $150,000–350,000 | ARA CY SAN ANTONIO RIM, LLC | SAN ANTONIO, TX | Bank of America, National Association |
| $350,000–1 million | ARBER INC | SAN ANTONIO, TX | TexStar National Bank |
| $150,000–350,000 | ARCHCOMM MANAGEMENT, LLC | SAN ANTONIO, TX | Frost Bank |
| $1–2 million | ARCHDIOCESE OF SAN ANTONIO | SAN ANTONIO, TX | Frost Bank |
| $1–2 million | ARCHITECTURAL DIVISION 8 INC | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | ARCHPOINT BRANDING AND MARKETING, LLC | SAN ANTONIO, TX | Texas Capital Bank, National Association |
| $150,000–350,000 | ARCHPOINT GROUP, INC. | SAN ANTONIO, TX | Texas Capital Bank, National Association |
| $350,000–1 million | ARCHPOINT SALES TEXAS, LLC | SAN ANTONIO, TX | Texas Capital Bank, National Association |
| $350,000–1 million | ARD MOR INC | SAN ANTONIO, TX | JPMorgan Chase Bank, National Association |
| $150,000–350,000 | AREA REAL ESTATE, LLC | SAN ANTONIO, TX | Broadway National Bank |
| $350,000–1 million | AREG INVESTMENTS, LTD | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | AREVALOS TRADE COMPANY | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | ARGENT BASTROP OPERATIONS LLC | SAN ANTONIO, TX | Capital One, National Association |
| $150,000–350,000 | ARGUELLO VENTURES, INC. | SAN ANTONIO, TX | Broadway National Bank |
| $1–2 million | ARIAS & ASSOCIATES INC | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | ARIEL MINISTRIES | SAN ANTONIO, TX | Frost Bank |
| $1–2 million | ARNOLD REFRIGERATION, INC. | SAN ANTONIO, TX | JPMorgan Chase Bank, National Association |
| $350,000–1 million | ARROW MOVING & STORAGE OF TEXAS LLC | SAN ANTONIO, TX | Jonah Bank of Wyoming |
| $350,000–1 million | ARS SPECIALTY CONTRACTORS, LLC | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | ART & TECHNOLOGY DENTAL STUDIO LLC | SAN ANTONIO, TX | Vantage Bank Texas |
| $150,000–350,000 | ARTCOM ASSOCIATES INC | SAN ANTONIO, TX | Bank of America, National Association |
| $150,000–350,000 | ARTCOM COMMUNICATIONS NORTH LLC | SAN ANTONIO, TX | Bank of America, National Association |
| $150,000–350,000 | ARTESIAN CUSTOM POOLS, INC. | SAN ANTONIO, TX | Frost Bank |
| $350,000–1 million | ARTHRITIS ASOOCIATES PA | SAN ANTONIO, TX | Broadway National Bank |
| $150,000–350,000 | ARTHUR P. VELTMAN & ASSOCIATES, INC. | SAN ANTONIO, TX | Broadway National Bank |
| $150,000–350,000 | ARTISAN DENTAL STUDIO, INC | SAN ANTONIO, TX | Frost Bank |
| $350,000–1 million | ASGI LLC DBA SHARP GLASS | SAN ANTONIO, TX | Wells Fargo Bank, National Association |
| $150,000–350,000 | ASPECT WEALTH MANAGEMENT GROUP, LLC | SAN ANTONIO, TX | Generations Community FCU |
| $350,000–1 million | ASPIRE THERAPY SERVICES AND CONSULTANTS INC. | SAN ANTONIO, TX | Texas Capital Bank, National Association |
| $1–2 million | ASSESSMENT INTERVENTION MANAGEMENT, LLC | SAN ANTONIO, TX | Frost Bank |
| $350,000–1 million | ASSESSMENT TECHNOLOGNIES, LTD. | SAN ANTONIO, TX | The Bank of San Antonio |
| $150,000–350,000 | ASSET ESSENTIALS HOLDINGS, LLC | SAN ANTONIO, TX | The Bank of San Antonio |
| $150,000–350,000 | ASSOCIATED COLLISION CENTER INC | SAN ANTONIO, TX | BBVA USA |
| $150,000–350,000 | ASSOCIATED GLASS LTD | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | ASSOCIATED PAYROLL CONTROL, INC | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | ASSUMPTION SEMINARY | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | ASTELCO, INC. | SAN ANTONIO, TX | Comerica Bank |
| $350,000–1 million | ATKG, LLP | SAN ANTONIO, TX | Frost Bank |
| $350,000–1 million | ATKINS INTERNATIONAL, LLC | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | ATLAS AMALGAMATED OF SAN ANTONIO, INC. | SAN ANTONIO, TX | Broadway National Bank |
| $350,000–1 million | ATTEST HEALTH CARE ADVISORS, LLC | SAN ANTONIO, TX | JPMorgan Chase Bank, National Association |
| $1–2 million | AUGERMAN, INC | SAN ANTONIO, TX | Frost Bank |
| $350,000–1 million | AUGUSTIN ESTRADA III | SAN ANTONIO, TX | Bank of America, National Association |
| $150,000–350,000 | AUTHENTIC DENTAL LABORATORY, INC. | SAN ANTONIO, TX | International Bank of Commerce |
| $150,000–350,000 | AUTISM SERVICE CENTER OF SAN ANTONIO | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | AUTO XTRAS, INC. | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | AUTOGROSS MARKETING CONSULTANTS, LLC | SAN ANTONIO, TX | Truist Bank d/b/a Branch Banking & Trust Co |
| $150,000–350,000 | AUTOMATED CLEANING TECHNOLOGIES, INC. | SAN ANTONIO, TX | Broadway National Bank |
| $150,000–350,000 | AUTOMOTIVE PROMOTION CONSULTANTS, LLC | SAN ANTONIO, TX | Jefferson Bank |
| $350,000–1 million | AV TECHNICAL SUPPORT INC | SAN ANTONIO, TX | Texas Capital Bank, National Association |
| $150,000–350,000 | AVALON SALON & SPA | SAN ANTONIO, TX | Security Service FCU |
| $150,000–350,000 | AVANTI HOLDINGS LLC | SAN ANTONIO, TX | BBVA USA |
| $150,000–350,000 | AVENIDA GUADALUPE ASSOCIATION | SAN ANTONIO, TX | The Bank of San Antonio |
| $150,000–350,000 | AVERISOURCE, LLC | SAN ANTONIO, TX | WebBank |
| $150,000–350,000 | AVESTEE MANAGEMENT COMPANY LLC | SAN ANTONIO, TX | Zions Bank, A Division of |