| $1–2 million | D AND S NORTH HOLDINGS, LLC | SAN ANTONIO, TX | Frost Bank |
| $350,000–1 million | D L BANDY CONSTRUCTORS INC | SAN ANTONIO, TX | Broadway National Bank |
| $150,000–350,000 | D&B PRECISION CUTTING AND MANUFACTURING, LLC | SAN ANTONIO, TX | JPMorgan Chase Bank, National Association |
| $1–2 million | D'ANN HARPER REALTY, INC | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | DADY RESTAURANTS LLC | SAN ANTONIO, TX | The Bank of San Antonio |
| $1–2 million | DAILEY AND WELLS COMMUNICATIONS, INC. | SAN ANTONIO, TX | Broadway National Bank |
| $350,000–1 million | DALLAS PIZZA HOLDINGS, LLC | SAN ANTONIO, TX | City National Bank of Florida |
| $150,000–350,000 | DAMARAYA LP | SAN ANTONIO, TX | City Bank |
| $150,000–350,000 | DAMCO UTILITY, INC. | SAN ANTONIO, TX | Truist Bank d/b/a Branch Banking & Trust Co |
| $150,000–350,000 | DANA HODGE KING, D.D.S., P.C. | SAN ANTONIO, TX | JPMorgan Chase Bank, National Association |
| $150,000–350,000 | DANN HARPER PROPERTY MANAGEMENT CORPORATION | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | DARA LP | SAN ANTONIO, TX | City Bank |
| $150,000–350,000 | DARAYAMA LP | SAN ANTONIO, TX | City Bank |
| $150,000–350,000 | DATA OPTICS CABLE INC | SAN ANTONIO, TX | Bank of America, National Association |
| $150,000–350,000 | DATA SEARCH COLLECTION INC | SAN ANTONIO, TX | Jefferson Bank |
| $150,000–350,000 | DAUGHTRY,, INC. | SAN ANTONIO, TX | Jefferson Bank |
| $350,000–1 million | DAUSIN ELECTRIC CO. | SAN ANTONIO, TX | Ozona National Bank |
| $350,000–1 million | DAVCOR AVIATION SERVICES, INC. | SAN ANTONIO, TX | First-Citizens Bank & Trust Company |
| $350,000–1 million | DAVID A. RAMOS M.D., P.A. DBA R FAMILY MEDICAL GROUP | SAN ANTONIO, TX | JPMorgan Chase Bank, National Association |
| $350,000–1 million | DAVIDSON TROILO REAM & GARZA | SAN ANTONIO, TX | PlainsCapital Bank |
| $350,000–1 million | DAVILA CONSTRUCTION, INC | SAN ANTONIO, TX | Frost Bank |
| $350,000–1 million | DAVILA PHARMACY INC | SAN ANTONIO, TX | Frost Bank |
| $350,000–1 million | DAVIS & SANTOS, PC | SAN ANTONIO, TX | Vantage Bank Texas |
| $1–2 million | DAVIS LAW FIRM | SAN ANTONIO, TX | American Bank, National Association |
| $350,000–1 million | DAVIS, CEDILLO & MENDOZA, INC. | SAN ANTONIO, TX | Zions Bank, A Division of |
| $150,000–350,000 | DAYARADA INC | SAN ANTONIO, TX | City Bank |
| $150,000–350,000 | DC SCOTT & ASSOCIATES FOOD BROKERAGE, INC. | SAN ANTONIO, TX | Jefferson Bank |
| $150,000–350,000 | DE LEON UNLIMITED INC. | SAN ANTONIO, TX | Newtek Small Business Finance, Inc. |
| $350,000–1 million | DEA SPECIALTIES II, LLC | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | DEACON PROFESSIONAL SERVICES, LLC | SAN ANTONIO, TX | Texas Capital Bank, National Association |
| $150,000–350,000 | DEACON RECRUITING, INC. | SAN ANTONIO, TX | Texas Capital Bank, National Association |
| $150,000–350,000 | DEAF INTERPRETER SERVICES, INC. | SAN ANTONIO, TX | Amarillo National Bank |
| $350,000–1 million | DEALER SOURCE, LTD. | SAN ANTONIO, TX | Texas Hill Country Bank |
| $350,000–1 million | DEANSTEEL MANUFACTURING COMPANY INC | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | DECORIQ, LLC | SAN ANTONIO, TX | Broadway National Bank |
| $1–2 million | DECYPHER TECHNOLOGIES, LTD | SAN ANTONIO, TX | TransPecos Banks, SSB. |
| $350,000–1 million | DEEPROOT STUDIOS, LLC | SAN ANTONIO, TX | WebBank |
| $350,000–1 million | DEEPROOT TECH, LLC | SAN ANTONIO, TX | Cross River Bank |
| $2–5 million | DEER OAKS CONSULTATION SERVICES, P.C. | SAN ANTONIO, TX | Zions Bank, A Division of |
| $150,000–350,000 | DEER OAKS EAP SERVICES, LLC | SAN ANTONIO, TX | Zions Bank, A Division of |
| $1–2 million | DEER OAKS MENTAL HEALTH ASSOCIATES, P.C. | SAN ANTONIO, TX | Zions Bank, A Division of |
| $350,000–1 million | DEF-LOGIX INC | SAN ANTONIO, TX | Frost Bank |
| $350,000–1 million | DEFENSE CONSULTING SERVICES LLC | SAN ANTONIO, TX | Truist Bank d/b/a Branch Banking & Trust Co |
| $150,000–350,000 | DEL REY EXPRESS, INC. | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | DEL SOL DELIVEY'S LLC | SAN ANTONIO, TX | Cross River Bank |
| $150,000–350,000 | DEL'S GRASS FARM, LTD. | SAN ANTONIO, TX | Jefferson Bank |
| $150,000–350,000 | DELICIOUS, INC. | SAN ANTONIO, TX | The Bank of San Antonio |
| $350,000–1 million | DELRAY OIL INC. | SAN ANTONIO, TX | Bank of America, National Association |
| $350,000–1 million | DELTA GRANITE AND MARBLE, INC. | SAN ANTONIO, TX | Customers Bank |
| $150,000–350,000 | DELTRA SYSTEMS LLC | SAN ANTONIO, TX | JPMorgan Chase Bank, National Association |
| $350,000–1 million | DEMOCRACY PREP TEXAS | SAN ANTONIO, TX | Bank of America, National Association |
| $5–10 million | DEN TEX CENTRAL INC | SAN ANTONIO, TX | Bank of America, National Association |
| $1–2 million | DENIM GROUP LP | SAN ANTONIO, TX | Frost Bank |
| $350,000–1 million | DENNIS KARASEK MD PLLC | SAN ANTONIO, TX | Broadway National Bank |
| $150,000–350,000 | DENNIS ROBERTO MONTALVAN CONSTRUCTION | SAN ANTONIO, TX | BSD Capital, LLC dba Lendistry |
| $350,000–1 million | DENTON NAVARRO ROCHA BERNAL & ZECH | SAN ANTONIO, TX | Broadway National Bank |
| $350,000–1 million | DEPENDABLE HEALTH SERVICES, INC. | SAN ANTONIO, TX | Lone Star National Bank |
| $1–2 million | DETMAR LOGISTICS LLC | SAN ANTONIO, TX | Frost Bank |
| $350,000–1 million | DEVILS RIVER HOLDINGS LLC | SAN ANTONIO, TX | Bank of America, National Association |
| $150,000–350,000 | DH SMITH AND ASSOCIATES, LP | SAN ANTONIO, TX | Frost Bank |
| $1–2 million | DHS SECURITY, LLC | SAN ANTONIO, TX | Texas Champion Bank |
| $1–2 million | DIABETES AND GLANDULAR DISEASE CLINIC, PA | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | DIABETES AND METABOLISM SPECIALISTS OF SAN ANTONIO, PLLC | SAN ANTONIO, TX | Zions Bank, A Division of |
| $1–2 million | DIESEL BARBERSHOP LLC | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | DIETZ-MCLEAN OPTICAL CO., INC. | SAN ANTONIO, TX | Jefferson Bank |
| $1–2 million | DIGITAL DEFENSE, INC. | SAN ANTONIO, TX | Broadway National Bank |
| $150,000–350,000 | DIGITAL DISPLAY SOLUTIONS, INC. | SAN ANTONIO, TX | TexStar National Bank |
| $150,000–350,000 | DIGITECH SOLUTIONS GROUP LLC | SAN ANTONIO, TX | Truist Bank d/b/a Branch Banking & Trust Co |
| $150,000–350,000 | DILLEY ALLERGY & ASTHMA SPECIALISTS LLP | SAN ANTONIO, TX | Frost Bank |
| $2–5 million | DILLIGAS CORP | SAN ANTONIO, TX | BBVA USA |
| $150,000–350,000 | DILMAK SERVICES, LLC | SAN ANTONIO, TX | Broadway National Bank |
| $150,000–350,000 | DIRECT REHAB, INC. | SAN ANTONIO, TX | The Bank of San Antonio |
| $350,000–1 million | DIRECTIONS EQUITY, LLC | SAN ANTONIO, TX | PlainsCapital Bank |
| $150,000–350,000 | DISCOVERY SCHOOL OF SAN ANTONIO INC | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | DISPATCH, LTD. | SAN ANTONIO, TX | Vantage Bank Texas |
| $150,000–350,000 | DITTMAR LUMBER CORP | SAN ANTONIO, TX | International Bank of Commerce |
| $1–2 million | DIVISION LAUNDRY/CLNRS., INC. | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | DIXIE FLAG & BANNER COMPANY | SAN ANTONIO, TX | River City FCU |
| $150,000–350,000 | DJMJ ENTERPRISES LLC | SAN ANTONIO, TX | Bank of America, National Association |
| $150,000–350,000 | DKW ENTERPRISES, LLC | SAN ANTONIO, TX | Broadway National Bank |
| $350,000–1 million | DMCA PARTNERSHIP GROUP LLP | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | DO WHAT YOU LOVE I, LLC | SAN ANTONIO, TX | NewFirst National Bank |
| $150,000–350,000 | DO WHAT YOU LOVE II, LLC | SAN ANTONIO, TX | NewFirst National Bank |
| $150,000–350,000 | DOLLE SERVICES LLC | SAN ANTONIO, TX | Cross River Bank |
| $350,000–1 million | DOMINGO VARA CHEVROLET, LP | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | DOMINION AESTHETIC TECHNOLOGIES, INC | SAN ANTONIO, TX | JPMorgan Chase Bank, National Association |
| $150,000–350,000 | DOMINION DESIGN & INTEGRATION, LLC | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | DON ADOLFO'S BAR & GRILL LLC | SAN ANTONIO, TX | Bank of America, National Association |
| $150,000–350,000 | DON B MCDONALD JR ARCHITECTS LTD | SAN ANTONIO, TX | Wells Fargo Bank, National Association |
| $1–2 million | DON DURDEN, INC. | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | DON JOHNSON COMPANY, INC | SAN ANTONIO, TX | Frost Bank |
| $350,000–1 million | DON STRANGE OF TEXAS, INC. | SAN ANTONIO, TX | Frost Bank |
| $5–10 million | DONALD L MOONEY ENTERPRISES LLC | SAN ANTONIO, TX | Truist Bank d/b/a Branch Banking & Trust Co |
| $150,000–350,000 | DOS CAROLINAS INC. | SAN ANTONIO, TX | The Bank of San Antonio |
| $150,000–350,000 | DOUBLE DIAMOND TRANSPORT, LLC | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | DOUGH - PIZZERIA NAPOLETANA LL | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | DOUGH SOUTHTOWN LLC | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | DOUGSAN LLC | SAN ANTONIO, TX | Wells Fargo Bank, National Association |
| $350,000–1 million | DOYLE L BENTON INC | SAN ANTONIO, TX | Credit Human FCU |
| $1–2 million | DP AUTO SALES AND FINANCE | SAN ANTONIO, TX | The Bank of San Antonio |