| $150,000–350,000 | RED BIRD RIM LP | SAN ANTONIO, TX | Lone Star National Bank |
| $150,000–350,000 | REDEEMER PRESBYTERIAN CHURCH | SAN ANTONIO, TX | Jefferson Bank |
| $150,000–350,000 | REECE SUPPLY COMPANY OF SAN ANTONIO | SAN ANTONIO, TX | Bank of the West |
| $150,000–350,000 | REED CANDLE COMPANY INC | SAN ANTONIO, TX | First Source Federal Credit Union |
| $350,000–1 million | REEL DINNER PARTNERS - CORPUS CHRISTI, LLC | SAN ANTONIO, TX | Texas Partners Bank |
| $350,000–1 million | REEL DINNER PARTNERS - LAREDO, LLC | SAN ANTONIO, TX | Texas Partners Bank |
| $350,000–1 million | REEP MANAGEMENT LLC | SAN ANTONIO, TX | Vista Bank |
| $350,000–1 million | REFRACTIVE SURGERY AND DIAGNOSTIC CENTER LLC | SAN ANTONIO, TX | Itria Ventures LLC |
| $350,000–1 million | REFRACTIVE SURGERY AND DIAGNOSTIC CENTER LLC | SAN ANTONIO, TX | Cadence Bank |
| $2–5 million | REFUGEE AND IMMIGRANT CENTER FOR EDUCATION AND LEGAL SERVICE | SAN ANTONIO, TX | First Source Federal Credit Union |
| $150,000–350,000 | REGENCY COMMUNITY SERVICES INC | SAN ANTONIO, TX | Frost Bank |
| $350,000–1 million | REGENT CARE CENTER OF SAN ANTONIO III, LP | SAN ANTONIO, TX | Texas First Bank |
| $150,000–350,000 | REGENT COACH LINE LDT | SAN ANTONIO, TX | Texas Partners Bank |
| $150,000–350,000 | REGENTX PARTNERS LLC | SAN ANTONIO, TX | TXN Bank |
| $150,000–350,000 | REHABILITATION PROFESSIONAL CONSULTANTS INC. | SAN ANTONIO, TX | First Source Federal Credit Union |
| $350,000–1 million | REHLER VAUGHN AND KOONE, INC. | SAN ANTONIO, TX | Texas Capital Bank |
| $150,000–350,000 | REILAND HOLDINGS INC. | SAN ANTONIO, TX | Broadway National Bank |
| $350,000–1 million | RELIABLE STAFFING CORPORATION | SAN ANTONIO, TX | Generations Community Federal Credit Union |
| $1–2 million | RENAL ASSOCIATES, P.A. | SAN ANTONIO, TX | Jefferson Bank |
| $5–10 million | RENHILL STAFFING SERVICES OF TEXAS INC | SAN ANTONIO, TX | Truist Bank |
| $350,000–1 million | RENTWERX LLC | SAN ANTONIO, TX | Enterprise Bank & Trust |
| $150,000–350,000 | RENTZ ELECTRIC CO. | SAN ANTONIO, TX | Cadence Bank |
| $150,000–350,000 | REOC PARTNERS, LTD | SAN ANTONIO, TX | International Bank of Commerce |
| $150,000–350,000 | RESONANT TECHNOLOGY PARTNERS LLC | SAN ANTONIO, TX | Frost Bank |
| $350,000–1 million | RESPITE CARE OF SAN ANTONIO INCORPORATED | SAN ANTONIO, TX | Broadway National Bank |
| $150,000–350,000 | RESPONSIVE INFORMATION MANAGEMENT | SAN ANTONIO, TX | JPMorgan Chase Bank, National Association |
| $150,000–350,000 | RESTAURANT GWENDOLYN LLC | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | RETINA ASSOCIATES OF SOUTH TEXAS, P.A. | SAN ANTONIO, TX | First Source Federal Credit Union |
| $350,000–1 million | RETINAL CONSULTANTS OF SAN ANTONIO PA | SAN ANTONIO, TX | First Source Federal Credit Union |
| $2–5 million | REYES AUTOMOTIVE GROUP II, LLC | SAN ANTONIO, TX | First Source Federal Credit Union |
| $5–10 million | REYNOLD TRANSPORTATION, INC | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | RGV INSURANCE AGENCY LLC | SAN ANTONIO, TX | Texas Regional Bank |
| $350,000–1 million | RHEUMATOLOGY ASSOCIATES OF SOUTH TEXAS, P.L.L.C. | SAN ANTONIO, TX | Vantage Bank Texas |
| $150,000–350,000 | RHEUMATOLOGY SOLUTIONS, PLLC | SAN ANTONIO, TX | First Source Federal Credit Union |
| $350,000–1 million | RIALTO HOMES, LP | SAN ANTONIO, TX | Frost Bank |
| $350,000–1 million | RIALTO STUDIO INC | SAN ANTONIO, TX | Jefferson Bank |
| $150,000–350,000 | RIDGEMONT PROPERTIES, INC | SAN ANTONIO, TX | Frost Bank |
| $350,000–1 million | RIDGEWAY TOWING INC | SAN ANTONIO, TX | American Bank of Commerce |
| $350,000–1 million | RIDOUT, BARRETT & CO P.C. | SAN ANTONIO, TX | Frost Bank |
| $1–2 million | RIJE AUTO GROUP LP | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | RIO VALLEY HEALTHCARE SERVICES, LLC | SAN ANTONIO, TX | Frost Bank |
| $350,000–1 million | RIO, RIO CANTINA CORPORATION | SAN ANTONIO, TX | Frost Bank |
| $350,000–1 million | RIOS GOLDEN CUT, INC. | SAN ANTONIO, TX | Bank OZK |
| $150,000–350,000 | RISE RECOVERY | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | RIVER CITY EXCAVATION, INC. | SAN ANTONIO, TX | American Bank National Association |
| $350,000–1 million | RIVER CITY IMAGING ASSOCIATES | SAN ANTONIO, TX | Frost Bank |
| $350,000–1 million | RIVER CITY MARKETING INC | SAN ANTONIO, TX | Vantage Bank Texas |
| $1–2 million | RIVER CITY PRODUCE CO, INC. | SAN ANTONIO, TX | Texas Partners Bank |
| $150,000–350,000 | RIVER CITY REHABILITATION CENTER, INC. | SAN ANTONIO, TX | Texas Partners Bank |
| $150,000–350,000 | RIVER ENTERPRISES LIMITED | SAN ANTONIO, TX | International Bank of Commerce |
| $150,000–350,000 | RIVER RAMA INC | SAN ANTONIO, TX | City Bank |
| $1–2 million | RIVER RESTAURANTS, LTD. | SAN ANTONIO, TX | Broadway National Bank |
| $2–5 million | RIVER SUB LLC | SAN ANTONIO, TX | Frost Bank |
| $1–2 million | RIVER SUB LLC | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | RIVERCITY CARDIOVASCULAR OF SAN ANTONIO PLLC | SAN ANTONIO, TX | Frost Bank |
| $350,000–1 million | RIVERCITY CARDIOVASCULAR PLLC | SAN ANTONIO, TX | Frost Bank |
| $350,000–1 million | RIVERCITY WATERJET, INC. | SAN ANTONIO, TX | Frost Bank |
| $350,000–1 million | RIVERSIDE ENGINEERING, INC. | SAN ANTONIO, TX | Broadway National Bank |
| $350,000–1 million | RIVERWALK CY, LLC | SAN ANTONIO, TX | City National Bank of Florida |
| $150,000–350,000 | RIVERWALK OB-GYN | SAN ANTONIO, TX | Frost Bank |
| $350,000–1 million | RIVICOR RESTAURANTS, LTD. | SAN ANTONIO, TX | Frost Bank |
| $1–2 million | RK CULINARY GROUP, LLC | SAN ANTONIO, TX | Texas Capital Bank |
| $350,000–1 million | RL JONES LP | SAN ANTONIO, TX | Jefferson Bank |
| $150,000–350,000 | ROBERT A NORRIS, DDS, PA | SAN ANTONIO, TX | Vantage Bank Texas |
| $150,000–350,000 | ROBERT G. SZEWC, M.D., P.A. | SAN ANTONIO, TX | Texas Champion Bank |
| $150,000–350,000 | ROBERT N. SCHNITZLER, MD, PA | SAN ANTONIO, TX | International Bank of Commerce |
| $150,000–350,000 | ROCHAL INDUSTRIES LLC | SAN ANTONIO, TX | Cadence Bank |
| $150,000–350,000 | ROCKIT SHEARS IC DBA GREAT CLIPS | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | ROCO FOOD MANAGEMENT LLC | SAN ANTONIO, TX | Bremer Bank, National Association |
| $150,000–350,000 | RODDIS LUMBER & VENEER CO LP | SAN ANTONIO, TX | Frost Bank |
| $2–5 million | ROGER WARD - SAN ANTONIO, INC. | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | ROHDE REALTY, INC. | SAN ANTONIO, TX | First National Bank Texas |
| $150,000–350,000 | ROMO MEDICAL EQUIPMENT, LLC | SAN ANTONIO, TX | Newtek Small Business Finance, Inc. |
| $150,000–350,000 | RON BLANK & ASSOCIATES, INC. | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | RONALD MCDONALD HOUSE CHARITIES OF SAN ANTONIO | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | ROSARIO'S SAN PEDRO INC. | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | ROSELLA MANAGEMENT, LLC | SAN ANTONIO, TX | Lone Star National Bank |
| $350,000–1 million | ROSENTHAL PAUERSTEIN SANDOLOSKI AGATHER LLP | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | ROSS ELECTRIC COMPANY, INC. | SAN ANTONIO, TX | Jefferson Bank |
| $150,000–350,000 | ROSS FAMILY CLINICS, PLLC | SAN ANTONIO, TX | Lone Star Capital Bank, National Association |
| $1–2 million | ROY MAAS YOUTH ALTERNATIVES INC | SAN ANTONIO, TX | Frost Bank |
| $350,000–1 million | ROYBERG INC. | SAN ANTONIO, TX | International Bank of Commerce |
| $150,000–350,000 | RSR JACKSON LLC | SAN ANTONIO, TX | First Commercial Bank, National Association |
| $150,000–350,000 | RTSA OPERATIONS I, LP | SAN ANTONIO, TX | Jefferson Bank |
| $150,000–350,000 | RUBIOLA CONSTRUCTION COMPANY | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | RUDEL FAMILY LIMITED PARTNERSHIP | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | RUIZ AND FORSH JV LLC | SAN ANTONIO, TX | First National Bank Texas |
| $150,000–350,000 | RUIZ AND LOUVIN ENTERPRISES, LLC | SAN ANTONIO, TX | Texas Capital Bank |
| $150,000–350,000 | RWPK PLLC | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | RWPK, PLLC | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | RYC FOODS LLC | SAN ANTONIO, TX | First Source Federal Credit Union |
| $150,000–350,000 | S. POTTS & PROFESSIONALS, INC. | SAN ANTONIO, TX | Lone Star Capital Bank, National Association |
| $150,000–350,000 | S. TCB LIN LLC | SAN ANTONIO, TX | Itria Ventures LLC |
| $350,000–1 million | S.A. FIVE STAR CLEANER #2, INC. | SAN ANTONIO, TX | Broadway National Bank |
| $150,000–350,000 | S.A. RITEWAY SERVICE COMPANY | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | S.A.O.S., PLLC | SAN ANTONIO, TX | Texas Partners Bank |
| $150,000–350,000 | SA BIKE WORLD, LLC | SAN ANTONIO, TX | Cadence Bank |
| $150,000–350,000 | SA CHRISTIAN HOPE RESOURCE CENTER, INC | SAN ANTONIO, TX | Texas Partners Bank |
| $150,000–350,000 | SA HOU ALAMO LLC | SAN ANTONIO, TX | Jefferson Bank |
| $150,000–350,000 | SA LIBERTY FIELD PREP SCHOOL, LLC | SAN ANTONIO, TX | Zions Bank, A Division of |