| $350,000–1 million | MATAGORDA EPISCOPAL HEALTH OUTREACH PROGRAM CORPORATION | BAY CITY, TX | Prosperity Bank |
| $350,000–1 million | MATAGORDA NURSING AND REHABILITATION CENTER LLC | GANADO, TX | Prosperity Bank |
| $150,000–350,000 | MATERIAL INSPECTION TECHNOLOGY, INC | HOUSTON, TX | Prosperity Bank |
| $150,000–350,000 | MATHEWS RESORTS, INC | ARANSAS PASS, TX | Prosperity Bank |
| $150,000–350,000 | MATT BISCHOF INSURANCE GROUP, INC. | THE COLONY, TX | Prosperity Bank |
| $150,000–350,000 | MATTHEW ROAD BAPTIST CHURCH | GRAND PRARIE, TX | Prosperity Bank |
| $350,000–1 million | MAUDIE'S AT SHADY HOLLOW, LP | AUSTIN, TX | Prosperity Bank |
| $150,000–350,000 | MAUDIE'S MILAGRO, L.P. | AUSTIN, TX | Prosperity Bank |
| $350,000–1 million | MAUDIE'S HILL COUNTRY, LLC | AUSTIN, TX | Prosperity Bank |
| $150,000–350,000 | MAUDIE'S ORIGINAL, LP | AUSTIN, TX | Prosperity Bank |
| $150,000–350,000 | MAUDIE'S TRIANGEL, LLC | AUSTIN, TX | Prosperity Bank |
| $150,000–350,000 | MAUDIES TOO, LP | AUSTIN, TX | Prosperity Bank |
| $350,000–1 million | MAXIMUM INDUSTRIES INC | IRVING, TX | Prosperity Bank |
| $150,000–350,000 | MAXTAB INC | AUSTIN, TX | Prosperity Bank |
| $2–5 million | MAXUS HEALTHCARE PARTNERS, LLC | FORT WORTH, TX | Prosperity Bank |
| $150,000–350,000 | MBCM MANAGEMENT INC. | NAVASOTA, TX | Prosperity Bank |
| $150,000–350,000 | MC WELDING & FABRICATION INC | CORPUS CHRISTI, TX | Prosperity Bank |
| $150,000–350,000 | MC WORD UP INC | AUSTIN, TX | Prosperity Bank |
| $2–5 million | MCADA DRILLING FLUIDS, INC. | BAY CITY, TX | Prosperity Bank |
| $150,000–350,000 | MCCART MEDICAL ASSOCIATES PA | FORT WORTH, TX | Prosperity Bank |
| $150,000–350,000 | MCCURDY SERVICES INC | BRYAN, TX | Prosperity Bank |
| $350,000–1 million | MCGUIRE INDUSTRIES, INC. | ODESSA, TX | Prosperity Bank |
| $1–2 million | MCGUIRE MOORMAN HOSPITALITY LLC | AUSTIN, TX | Prosperity Bank |
| $1–2 million | MCMAHAN SERVICES, LTD | CUERO, TX | Prosperity Bank |
| $2–5 million | MCNELLIE'S GROUP LLC | TULSA, OK | Prosperity Bank |
| $350,000–1 million | MCNORTON DEWATERING INC | CLEVELAND, TX | Prosperity Bank |
| $350,000–1 million | MEADOWLARK HOLDINGS LLP | HOUSTON, TX | Prosperity Bank |
| $150,000–350,000 | MEALS ON WHEELS COLLIN COUNTY | MCKINNEY, TX | Prosperity Bank |
| $150,000–350,000 | MECHANICAL AIR SYSTEMS, INC. | BROKEN ARROW, OK | Prosperity Bank |
| $150,000–350,000 | MECHANIX INC | BAY CITY, TX | Prosperity Bank |
| $150,000–350,000 | MEDCALF FABRICATION, INC. | HOUSTON, TX | Prosperity Bank |
| $150,000–350,000 | MEDFAB INTERESTS LLC | HOUSTON, TX | Prosperity Bank |
| $150,000–350,000 | MEDIA DEFINED INC. | DALLAS, TX | Prosperity Bank |
| $150,000–350,000 | MEDRECOVERY SOLUTIONS LLC | HOUSTON, TX | Prosperity Bank |
| $150,000–350,000 | MEDSTAFFING, INC. | PLANO, TX | Prosperity Bank |
| $1–2 million | MEDTRIALS, INC. | DALLAS, TX | Prosperity Bank |
| $150,000–350,000 | MEDWED ENTERPRISES, INC. | RICHARDSON, TX | Prosperity Bank |
| $150,000–350,000 | MEEK'S ELECTRICAL SERVICES, INC. | TULSA, OK | Prosperity Bank |
| $150,000–350,000 | MEERS ENTERPRISES INC | LUBBOCK, TX | Prosperity Bank |
| $150,000–350,000 | MEGATEL CAPITAL INVESTMENTS, LLC | DALLAS, TX | Prosperity Bank |
| $2–5 million | MEGATEL HOMES, INC. | DALLAS, TX | Prosperity Bank |
| $150,000–350,000 | MELBYCO, INC | PLANO, TX | Prosperity Bank |
| $350,000–1 million | MEMORIAL CREME DE LA CREME, LLC | HOUSTON, TX | Prosperity Bank |
| $150,000–350,000 | MENAGERIE ENTERPRISES INC. | ADDISON, TX | Prosperity Bank |
| $150,000–350,000 | MENTALIX, INC. | DALLAS, TX | Prosperity Bank |
| $150,000–350,000 | MERIDAN CONSTRUCTORS | HOUSTON, TX | Prosperity Bank |
| $1–2 million | MERIT ELECTRIC COMPANY | HOUSTON, TX | Prosperity Bank |
| $150,000–350,000 | MESA PRECAST & SUPPLY, LLC | TEMPE, AZ | Prosperity Bank |
| $150,000–350,000 | MESQUITE KITCHENS LLC | MATHIS, TX | Prosperity Bank |
| $150,000–350,000 | MESSIAH LUTHERAN CHURCH OF PLANO TEXAS | PLANO, TX | Prosperity Bank |
| $150,000–350,000 | METAL DETAIL, INC. | DALLAS, TX | Prosperity Bank |
| $150,000–350,000 | METER CHECK MEASUREMENT SERVICES, L.L.C. | BROKEN ARROW, OK | Prosperity Bank |
| $350,000–1 million | METRO COMMUNICATION SYSTEMS, INC. | GRAPEVINE, TX | Prosperity Bank |
| $150,000–350,000 | METRO HEATING & COOLING | DALLAS, TX | Prosperity Bank |
| $150,000–350,000 | METRO MOTOR CENTER INC | HOUSTON, TX | Prosperity Bank |
| $350,000–1 million | METROPLEX CONCRETE CONSTRUCTION, INC. | ARGYLE, TX | Prosperity Bank |
| $150,000–350,000 | METROPOLITAN REPROGRAPHICS, INC. | DALLAS, TX | Prosperity Bank |
| $350,000–1 million | METROPORT CITIES FELLOWSHIP, INC | FORT WORTH, TX | Prosperity Bank |
| $350,000–1 million | MEYER LYTTON ALLEN WHITAKER INC | AUSTIN, TX | Prosperity Bank |
| $150,000–350,000 | MEYERLAND ANIMAL CLINIC | HOUSTON, TX | Prosperity Bank |
| $150,000–350,000 | MEYERLAND ANIMAL MANAGEMENT SERVICES | HOUSTON, TX | Prosperity Bank |
| $150,000–350,000 | MG CLEANERS LLC | CARTHAGE, TX | Prosperity Bank |
| $150,000–350,000 | MG INTERNATIONAL INC | DALLAS, TX | Prosperity Bank |
| $150,000–350,000 | MICROTECH LABORATORIES, LLC | PLANO, TX | Prosperity Bank |
| $350,000–1 million | MID-CITIES COMMUNITY CHURCH | MIDLAND, TX | Prosperity Bank |
| $350,000–1 million | MID-COAST FAMILY SERVICES INC | VICTORIA, TX | Prosperity Bank |
| $350,000–1 million | MIDIOSDA LLC | ROSHARON, TX | Prosperity Bank |
| $350,000–1 million | MIDLAND ACADEMY CHARTER SCHOOL INC | MIDLAND, TX | Prosperity Bank |
| $150,000–350,000 | MIDLAND CANAM ENTERPRISES LTD | MIDLAND, TX | Prosperity Bank |
| $150,000–350,000 | MIKKI'S CAFE & CATERING INC | HOUSTON, TX | Prosperity Bank |
| $150,000–350,000 | MILLEN OIL COMPANY, INC. | MCKINNEY, TX | Prosperity Bank |
| $150,000–350,000 | MILLWORK SOLUTIONS LTD | MANSFIELD, TX | Prosperity Bank |
| $1–2 million | MISSION CARDIOVASCULAR CONSULTANTS PA | NEW BRAUNFELS, TX | Prosperity Bank |
| $1–2 million | MLA LABS INC | AUSTIN, TX | Prosperity Bank |
| $150,000–350,000 | MO THI NGUYEN | FORT WORTH, TX | Prosperity Bank |
| $350,000–1 million | MOBILE DESTINATION, INC. | NACOGDOCHES, TX | Prosperity Bank |
| $150,000–350,000 | MOBILE INSURANCE AGENCY OF TEXAS, INC. | SPRING, TX | Prosperity Bank |
| $350,000–1 million | MOBILE MOUNTING SOLUTIONS INC. | MCKINNEY, TX | Prosperity Bank |
| $350,000–1 million | MODERN PLUMBING COMPANY INC. | PASADENA, TX | Prosperity Bank |
| $150,000–350,000 | MOHANNA & ASSOCIATES INC. | PLANO, TX | Prosperity Bank |
| $150,000–350,000 | MOMENTUM AUTO GROUP LLC | MIDLAND, TX | Prosperity Bank |
| $150,000–350,000 | MONAHAN ENTERPRISES LP | SAN ANTONIO, TX | Prosperity Bank |
| $350,000–1 million | MONARCH SILICA, LLC | MAGNOLIA, TX | Prosperity Bank |
| $150,000–350,000 | MONFREY CONCESSIONS, L.L.C. | SAN ANTONIO, TX | Prosperity Bank |
| $150,000–350,000 | MONTEREY CHURCH OF CHRIST | LUBBOCK, TX | Prosperity Bank |
| $150,000–350,000 | MONTGOMERY WILLIS & CONROE INSURANCE AGENCY LLC | MONTGOMERY, TX | Prosperity Bank |
| $350,000–1 million | MOODY'S JEWELRY | TULSA, OK | Prosperity Bank |
| $150,000–350,000 | MORGAN SERVICES CO LLC | MUSKOGEE, OK | Prosperity Bank |
| $150,000–350,000 | MOTEC LTD. | CISCO, TX | Prosperity Bank |
| $150,000–350,000 | MOTLEY ASSET MANAGEMENT LLC | ODESSA, TX | Prosperity Bank |
| $150,000–350,000 | MOUNCE & ASSOCIATES INC. | CARROLLTON, TX | Prosperity Bank |
| $150,000–350,000 | MOURSUND LIMITED | ROUND MOUNTAIN, TX | Prosperity Bank |
| $150,000–350,000 | MRSP, LLC | PLANO, TX | Prosperity Bank |
| $350,000–1 million | MSI CREDIT SOLUTIONS | DALLAS, TX | Prosperity Bank |
| $350,000–1 million | MTW PIPEWORKS LTD | CYPRESS, TX | Prosperity Bank |
| $1–2 million | MUNICIPAL OPERATIONS & CONSULTING | CONROE, TX | Prosperity Bank |
| $350,000–1 million | MURFEE ENGINEERING CO, INC | AUSTIN, TX | Prosperity Bank |
| $350,000–1 million | MUV, INC. | DALLAS, TX | Prosperity Bank |
| $150,000–350,000 | MY HILLSIDE CHURCH, INC | MONT BELVIEU, TX | Prosperity Bank |
| $150,000–350,000 | MYRAID FABRICATION, LLC | HOUSTON, TX | Prosperity Bank |