| $150,000–350,000 | MANTIS MASSAGE, LLC | AUSTIN, TX | Frost Bank |
| $350,000–1 million | MARCUS BOWEN LANDSCAPE, INC | HUDSON OAKS, TX | Frost Bank |
| $350,000–1 million | MARENTCO, INC. | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | MARGARITA LA BODEGA INC. | MIDLAND, TX | Frost Bank |
| $150,000–350,000 | MARINE SERVICES LLC | HOUSTON, TX | Frost Bank |
| $350,000–1 million | MARIO R ANZALDUA MD PA | MISSION, TX | Frost Bank |
| $150,000–350,000 | MARK M JONES & ASSOCIATES, RLLP | FORT WORTH, TX | Frost Bank |
| $150,000–350,000 | MARK PROVENZANO, M.D., P.A. | HOUSTON, TX | Frost Bank |
| $150,000–350,000 | MARKET SUSHI, INC. | SPRING, TX | Frost Bank |
| $150,000–350,000 | MARKETING EFFECTS, LLC. | SAN ANTONIO, TX | Frost Bank |
| $1–2 million | MARKETING MANAGEMENT, INC. | FORT WORTH, TX | Frost Bank |
| $350,000–1 million | MARSH & ASSOCIATES, INC. ARCHITECTURE/PLANNING/INTERIORS | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | MARTECH LLC | MIDLOTHIAN, TX | Frost Bank |
| $150,000–350,000 | MARTENS, TODD, LEONARD & AHLRICH | AUSTIN, TX | Frost Bank |
| $150,000–350,000 | MARTHA E GARZA P.C. | BELLAIRE, TX | Frost Bank |
| $150,000–350,000 | MARTIN & MARTIN MEDICATION MANAGEMENT CONSULTANTS, LLC | SPICEWOOD, TX | Frost Bank |
| $150,000–350,000 | MARTIN CHIROPRACTIC CLINIC, P.C. | MCALLEN, TX | Frost Bank |
| $150,000–350,000 | MARTIN LANDSCAPE MGT, INC. | HOUSTON, TX | Frost Bank |
| $150,000–350,000 | MARTINEZ & ASSOCIATES, PLLC | SAN ANTONIO, TX | Frost Bank |
| $350,000–1 million | MARTINEZ, WRIGHT AND MENDEZ, INC. | AUSTIN, TX | Frost Bank |
| $350,000–1 million | MARY LEE FOUNDATION | AUSTIN, TX | Frost Bank |
| $350,000–1 million | MASCO SERVICE CORPORATION | GRAPEVINE, TX | Frost Bank |
| $350,000–1 million | MASONS MILL & LUMBER CO., INC | HOUSTON, TX | Frost Bank |
| $350,000–1 million | MASRAM MECHANICAL, LP | HOUSTON, TX | Frost Bank |
| $150,000–350,000 | MASS MUTUAL SOUTH TEXAS | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | MASTERCRAFT PRINTED PRODUCTS & SERVICES, INC. | IRVING, TX | Frost Bank |
| $150,000–350,000 | MASTERTRONICS, INC. | FORT WORTH, TX | Frost Bank |
| $150,000–350,000 | MATHIS CONSULTING SERVICES INC | SAN ANTONIO, TX | Frost Bank |
| $350,000–1 million | MATRIX CONTRACTING SERVICES LLC | ADDISON, TX | Frost Bank |
| $350,000–1 million | MATT ELLIS MANAGEMENT CO INC. | MIDLAND, TX | Frost Bank |
| $150,000–350,000 | MATT KING MOTOR COMPANY LLC | ARLINGTON, TX | Frost Bank |
| $150,000–350,000 | MATTERN & FITZGERALD CUSTOM BUILDERS LLC | BOERNE, TX | Frost Bank |
| $350,000–1 million | MATTHEWS, LAWSON, MCCUTCHEON & JOSEPH, PLLC | HOUSTON, TX | Frost Bank |
| $350,000–1 million | MAUND AUTOMOTIVE GROUP, LP | AUSTIN, TX | Frost Bank |
| $350,000–1 million | MAVAGI ENTERPRISES INC | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | MAVERICK JACKETS, INC, | PLANO, TX | Frost Bank |
| $150,000–350,000 | MAVERICK MIDSTREAM SERVICES, LLC | SAN MARCOS, TX | Frost Bank |
| $2–5 million | MAVERICK OF TEXAS CONSTRUCTION, INC | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | MAXIMUM ENERGY SOLUTIONS, LLC | ROBSTOWN, TX | Frost Bank |
| $1–2 million | MAXWELL LOCKE & RITTER LLP | AUSTIN, TX | Frost Bank |
| $150,000–350,000 | MAXWELL MANUFACTURING INC. | MAXWELL, TX | Frost Bank |
| $150,000–350,000 | MAZON ASSOCIATES, INC. | IRVING, TX | Frost Bank |
| $350,000–1 million | MBCO ENGINEERING LLC | HOUSTON, TX | Frost Bank |
| $150,000–350,000 | MBW SERV CORPORATION | DALLAS, TX | Frost Bank |
| $150,000–350,000 | MC MANAGEMENT & DEVELOPMENT, INC. | BELLAIRE, TX | Frost Bank |
| $2–5 million | MCA COMMUNICATION INC. | HOUSTON, TX | Frost Bank |
| $350,000–1 million | MCCLURE OIL COMPANY INC. | MIDLAND, TX | Frost Bank |
| $1–2 million | MCCON BUILDING AND PETROLEUM SERVICES, INC | FLOWER MOUND, TX | Frost Bank |
| $150,000–350,000 | MCCOWN ENTERPRISES, LLC | MARION, TX | Frost Bank |
| $350,000–1 million | MCCREERY AVIATION CO., INC. | MCALLEN, TX | Frost Bank |
| $350,000–1 million | MCCULLOUGH HALL NURSING HOME, INC | SAN ANTONIO, TX | Frost Bank |
| $350,000–1 million | MCDUFF ENTERPRISE LLC | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | MCELROY, SULLIVAN, MILLER & WEBER, LLP | AUSTIN, TX | Frost Bank |
| $350,000–1 million | MCEWEN & ASSOCIATES INC | IRVING, TX | Frost Bank |
| $350,000–1 million | MCFADDEN & MILLER, LTD | DALLAS, TX | Frost Bank |
| $150,000–350,000 | MCFALL, BREITBALL, & EIDMAN PC | HOUSTON, TX | Frost Bank |
| $350,000–1 million | MCGARRAH JESSEE MEDIA LP | AUSTIN, TX | Frost Bank |
| $2–5 million | MCGARRAH JESSEE, LP | AUSTIN, TX | Frost Bank |
| $150,000–350,000 | MCGOVERN ALLERGY CLINIC, A PROFESSIONAL ASSOCIATION | BELLAIRE, TX | Frost Bank |
| $350,000–1 million | MCGRAY & MCGRAY LAND SURVEYORS, INC. | AUSTIN, TX | Frost Bank |
| $350,000–1 million | MCGUIRE, CRADDOCK & STROTHER, P.C. | DALLAS, TX | Frost Bank |
| $350,000–1 million | MCINTOSH & ASSOCIATES, LLC | LEWISVILLE, TX | Frost Bank |
| $150,000–350,000 | MCJAM INC | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | MCKEE BURKE & ASSOCIATES LLC | HOUSTON, TX | Frost Bank |
| $150,000–350,000 | MCKENNA HEALTH MANAGEMENT | NEW BRAUNFELS, TX | Frost Bank |
| $150,000–350,000 | MCM ENERGY PARTNERS LLC | MIDLAND, TX | Frost Bank |
| $1–2 million | MCMC AUTO LTD | BURLESON, TX | Frost Bank |
| $350,000–1 million | MCNAY ART MUSEUM | SAN ANTONIO, TX | Frost Bank |
| $350,000–1 million | MDM SCAFFOLDING SERVICES INC | HURST, TX | Frost Bank |
| $150,000–350,000 | MDS LAND SURVEYING | KERRVILLE, TX | Frost Bank |
| $150,000–350,000 | MEADOW OAKS ACADEMY | MESQUITE, TX | Frost Bank |
| $350,000–1 million | MEADOW OAKS EDUCATION FOUNDATION INC | MESQUITE, TX | Frost Bank |
| $150,000–350,000 | MEADS CONSULTING AND CONTRACTING | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | MECCANOTECNICA USA INC. | PHARR, TX | Frost Bank |
| $1–2 million | MED SECURITY, INC. | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | MEDIA MOOLAH, LLC | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | MEDICAL CENTER ANESTHESIA ASSOCIATES, PA | HOUSTON, TX | Frost Bank |
| $1–2 million | MEDICAL CENTER OPHTHALMOLOGY ASSOCIATES | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | MEDICAL WHOLESALE, INC. | SAN ANTONIO, TX | Frost Bank |
| $1–2 million | MEDICO MD MANAGEMENT LLC | IRVING, TX | Frost Bank |
| $350,000–1 million | MEDIGY, LLC | FORT WORTH, TX | Frost Bank |
| $350,000–1 million | MEEKS + PARTNERS CO. | HOUSTON, TX | Frost Bank |
| $150,000–350,000 | MEG HEALTHCARE, INC | DALLAS, TX | Frost Bank |
| $150,000–350,000 | MEGA SYSTEMS, INC | HELOTES, TX | Frost Bank |
| $150,000–350,000 | MEMBERSY LLC | AUSTIN, TX | Frost Bank |
| $1–2 million | MEMORIAL DRIVE PRESBYTERIAN CHURCH | HOUSTON, TX | Frost Bank |
| $150,000–350,000 | MENDEZ ENGINEERING, PLLC | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | MENDIETA FAMILY FOODS INC | PEARLAND, TX | Frost Bank |
| $350,000–1 million | MENS T CLINIC, LLC | FRISCO, TX | Frost Bank |
| $350,000–1 million | MEP ENGINEERING, INC. | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | MERCED HOUSING TEXAS | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | MERCHANT MULTISERVICE LLC | SAN ANTONIO, TX | Frost Bank |
| $1–2 million | MERCHCO SERVICES INC. | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | MERCURY CHOP HOUSE ARLINGTON | ARLINGTON, TX | Frost Bank |
| $150,000–350,000 | MEREDITH O'DONNELL INC | HOUSTON, TX | Frost Bank |
| $150,000–350,000 | MEREKEN LAND & PRODUCTION CO. | FORT WORTH, TX | Frost Bank |
| $150,000–350,000 | MERIDIAN HEALTH CARE SERVICES LLC | SAN ANTONIO, TX | Frost Bank |
| $350,000–1 million | MERIT COFFEE LLC | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | MERITAX LLC | DALLAS, TX | Frost Bank |
| $150,000–350,000 | MERLIN 21 AUTOMOTIVE | SAN ANTONIO, TX | Frost Bank |