| $150,000–350,000 | RELIANCE INDUSTRIES, INC. | MISSOURI CITY, TX | Frost Bank |
| $350,000–1 million | RENAISSANCE WINDOWS & DOORS, INC | HOUSTON, TX | Frost Bank |
| $150,000–350,000 | RENCON LLC | HOUSTON, TX | Frost Bank |
| $150,000–350,000 | RENE'S PARCEL SERVICE INC | HELOTES, TX | Frost Bank |
| $150,000–350,000 | RENEW LIFE CHURCH, INC. | MIDLAND, TX | Frost Bank |
| $150,000–350,000 | RENFROW METALSMITHS, LLC | HOUSTON, TX | Frost Bank |
| $350,000–1 million | RENTAL WORLD, LLC | HARLINGEN, TX | Frost Bank |
| $150,000–350,000 | REPCO REPLACEMENT PARTS INC | FORT WORTH, TX | Frost Bank |
| $1–2 million | REPUBLIC EMS LTD. | MAGNOLIA, TX | Frost Bank |
| $350,000–1 million | REPUBLIC PROPERTY GROUP, LTD | DALLAS, TX | Frost Bank |
| $150,000–350,000 | RESONANT TECHNOLOGY PARTNERS LLC | SAN ANTONIO, TX | Frost Bank |
| $350,000–1 million | RESOURCE HEALTH CARE INC | HOUSTON, TX | Frost Bank |
| $2–5 million | RESOURCE STAFFING INC. | SUGAR LAND, TX | Frost Bank |
| $150,000–350,000 | RESTAURANT GWENDOLYN LLC | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | RESTAURANT INVESTORS GROUP #1, LLC | ARLINGTON, TX | Frost Bank |
| $150,000–350,000 | RESTORE BEHAVIORAL HEALTH PLLC | SAN ANTONIO, TX | Frost Bank |
| $1–2 million | RESULT ENTERPRISES INC. | HOUSTON, TX | Frost Bank |
| $350,000–1 million | RETINA FOUNDATION OF THE SOUTHWEST | DALLAS, TX | Frost Bank |
| $150,000–350,000 | REY DE LA REZA ARCHITECTS, INC | HOUSTON, TX | Frost Bank |
| $5–10 million | REYNOLD TRANSPORTATION, INC | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | REYNOLDS & FRANKE, PC | AUSTIN, TX | Frost Bank |
| $350,000–1 million | RGP CLUB MANAGEMENT LLC | MIDLAND, TX | Frost Bank |
| $350,000–1 million | RGS FINANCIAL, INC | RICHARDSON, TX | Frost Bank |
| $150,000–350,000 | RGV ALLIANCE CONSTRUCTION LLC | EDINBURG, TX | Frost Bank |
| $350,000–1 million | RGV DENTAL PLLC | HARLINGEN, TX | Frost Bank |
| $150,000–350,000 | RHONDA M. JOHNSON, PHD., PLLC | FORT WORTH, TX | Frost Bank |
| $350,000–1 million | RIALTO HOMES, LP | SAN ANTONIO, TX | Frost Bank |
| $350,000–1 million | RICANA, LLC | WESLACO, TX | Frost Bank |
| $150,000–350,000 | RICARDO A. ABRAHAM MD PA | BROWNSVILLE, TX | Frost Bank |
| $1–2 million | RICCA CHEMICA COMPANY LLC | PANTEGO, TX | Frost Bank |
| $350,000–1 million | RICE & GARDNER CONSULTANTS, INC. | HOUSTON, TX | Frost Bank |
| $350,000–1 million | RICHARD H. SMITH, LLC | EULESS, TX | Frost Bank |
| $150,000–350,000 | RICHARD M. WALDEN, DVM, INC | AUSTIN, TX | Frost Bank |
| $150,000–350,000 | RICHARD'S RAINWATER, INC | AUSTIN, TX | Frost Bank |
| $150,000–350,000 | RICK BERGER ELECTRICAL CONTRACTORS, INC. | HOUSTON, TX | Frost Bank |
| $350,000–1 million | RICOCHET FUEL DISTRIBUTORS, INC. | EULESS, TX | Frost Bank |
| $350,000–1 million | RIDA REALTY INVESTMENTS CORP. | HOUSTON, TX | Frost Bank |
| $350,000–1 million | RIDE CORE MANAGEMENT, LLC | TEMPLE, TX | Frost Bank |
| $1–2 million | RIDE TELEVISION NETWORK, INC. | FORT WORTH, TX | Frost Bank |
| $150,000–350,000 | RIDGEBACK SOLUTIONS GROUP, LLC | IRVING, TX | Frost Bank |
| $150,000–350,000 | RIDGEMONT PROPERTIES, INC | SAN ANTONIO, TX | Frost Bank |
| $350,000–1 million | RIDOUT, BARRETT & CO P.C. | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | RIFE ENERGY OPERATING INCORPORATED | FORT WORTH, TX | Frost Bank |
| $150,000–350,000 | RIFELINE, LLC | AUSTIN, TX | Frost Bank |
| $150,000–350,000 | RIG MART CORPORATION | HALTOM CITY, TX | Frost Bank |
| $150,000–350,000 | RIGZONE.COM INC | HOUSTON, TX | Frost Bank |
| $1–2 million | RIJE AUTO GROUP LP | SAN ANTONIO, TX | Frost Bank |
| $350,000–1 million | RIKELN INC. | MCALLEN, TX | Frost Bank |
| $150,000–350,000 | RIME DOWNHOLE TECHNOLOGIES, LLC | BENBROOK, TX | Frost Bank |
| $1–2 million | RINA TECH USA, INC. | HOUSTON, TX | Frost Bank |
| $150,000–350,000 | RIO BRAVO SERVICES, INC | HOUSTON, TX | Frost Bank |
| $2–5 million | RIO GRANDE PACIFIC CORPORATION | BENBROOK, TX | Frost Bank |
| $150,000–350,000 | RIO GRANDE VALLEY HEALTH ALLIANCE, LLC | MCALLEN, TX | Frost Bank |
| $150,000–350,000 | RIO GRANDE VALLEY SECURITY LLC | RICHMOND, TX | Frost Bank |
| $150,000–350,000 | RIO PLEX SAFETY COUNCIL, LLC | MCALLEN, TX | Frost Bank |
| $150,000–350,000 | RIO TECHNICAL SERVICES, LLC | FORT WORTH, TX | Frost Bank |
| $150,000–350,000 | RIO VALLEY FROZEN FOODS, INC. | MCALLEN, 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 |
| $150,000–350,000 | RIPPNERTENNIS, LLC | AUSTIN, TX | Frost Bank |
| $350,000–1 million | RIPTIDE WATERS, LLC | AUSTIN, TX | Frost Bank |
| $150,000–350,000 | RISE RECOVERY | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | RISHERMARTIN LLC | AUSTIN, TX | Frost Bank |
| $150,000–350,000 | RISING STAR RESOURCE DEVELOPMENT CORP. | DALLAS, TX | Frost Bank |
| $350,000–1 million | RIVER CITY IMAGING ASSOCIATES | SAN ANTONIO, TX | Frost Bank |
| $1–2 million | RIVER SUB LLC | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | RIVERBED CONCRETE LLC | BOERNE, TX | Frost Bank |
| $350,000–1 million | RIVERBEND CHURCH | AUSTIN, 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 |
| $150,000–350,000 | RIVERTREE ACADEMY, INC | FORT WORTH, TX | Frost Bank |
| $150,000–350,000 | RIVERWALK OB-GYN | SAN ANTONIO, TX | Frost Bank |
| $350,000–1 million | RIVICOR RESTAURANTS, LTD. | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | RJ RIVERA ASSOCIATES INC. | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | RM MANIFOLD GROUP INC | FORT WORTH, TX | Frost Bank |
| $150,000–350,000 | RMAB, INC. | KATY, TX | Frost Bank |
| $350,000–1 million | RMD MANUFACTURING LTD. | MANSFIELD, TX | Frost Bank |
| $150,000–350,000 | RMJ HEALTHCARE MANAGEMENT LLC | HOUSTON, TX | Frost Bank |
| $2–5 million | ROADCLIPPER ENTERPRISES, INC | MOUNT PLEASANT, TX | Frost Bank |
| $350,000–1 million | ROADWAY SPECIALTIES, INC. | AUSTIN, TX | Frost Bank |
| $2–5 million | ROBERT HEATH TRUCKING INC. | DALLAS, TX | Frost Bank |
| $150,000–350,000 | ROBERT IZOR | AUSTIN, TX | Frost Bank |
| $350,000–1 million | ROBERT J. CORNELL, M.D., P.A. | HOUSTON, TX | Frost Bank |
| $350,000–1 million | ROBERT M. BEREN ACADEMY | HOUSTON, TX | Frost Bank |
| $150,000–350,000 | ROBERT W. RICKORDS DVM PA | FORT WORTH, TX | Frost Bank |
| $150,000–350,000 | ROBERTS FAMILY HOMES, LLC | SEGUIN, TX | Frost Bank |
| $1–2 million | ROBERTS MARKEL WEINBERG BUTLER HAILEY PC | HOUSTON, TX | Frost Bank |
| $350,000–1 million | ROBINDELL PRIVATE SCHOOL INC | HOUSTON, TX | Frost Bank |
| $150,000–350,000 | ROBNETT CPAS, LLC | AUSTIN, TX | Frost Bank |
| $350,000–1 million | ROBO6K LLC | AUSTIN, TX | Frost Bank |
| $350,000–1 million | ROCK CUTTERS LLC | GARLAND, TX | Frost Bank |
| $150,000–350,000 | ROCK PAPER SCISSORS LLC | HOUSTON, TX | Frost Bank |
| $150,000–350,000 | ROCK TOOL, LTD | ODESSA, TX | Frost Bank |
| $150,000–350,000 | ROCKIT SHEARS INC. | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | ROCKWOOD MEDICAL CLINIC PA | FORT WORTH, TX | Frost Bank |
| $150,000–350,000 | ROD SERVICES OF OKLAHOMA, INC. | THE WOODLANDS, TX | Frost Bank |
| $150,000–350,000 | RODDIS LUMBER & VENEER CO LP | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | RODRIGO ARGENAL MD PA | EDINBURG, TX | Frost Bank |
| $350,000–1 million | RODRIGUEZ CONSTRUCTION GROUP, LLC | STAFFORD, TX | Frost Bank |