| $150,000–350,000 | MERRITT PLUMBING, LLC | BOERNE, TX | Frost Bank |
| $1–2 million | MESA WELL SERVICING LP | HOBBS, NM | Frost Bank |
| $150,000–350,000 | MESSER, FORT AND MCDONALD, PLLC | FRISCO, TX | Frost Bank |
| $350,000–1 million | MESSINA TOURING GROUP, LLC | AUSTIN, TX | Frost Bank |
| $350,000–1 million | METALINK, LLC | AUSTIN, TX | Frost Bank |
| $150,000–350,000 | METALLOY INC | HOUSTON, TX | Frost Bank |
| $350,000–1 million | METCALFE WOLFF STUART & WILLIAMS, LLP | AUSTIN, TX | Frost Bank |
| $350,000–1 million | METERING & TESTING SERVICE, INC. | ODESSA, TX | Frost Bank |
| $350,000–1 million | METRO BRICK AND STONE COMPANY | DALLAS, TX | Frost Bank |
| $150,000–350,000 | METRO CODE ANALYSIS, L.L.C. | FORT WORTH, TX | Frost Bank |
| $1–2 million | METRO ELECTRIC, INC. | MCALLEN, TX | Frost Bank |
| $150,000–350,000 | METRO FREIGHT & HAULING LLC | GRANBURY, TX | Frost Bank |
| $150,000–350,000 | METRO GUARD CORPORATION | HURST, TX | Frost Bank |
| $150,000–350,000 | METRO OPTICS OF AUSTIN, INC. | PFLUGERVILLE, TX | Frost Bank |
| $150,000–350,000 | METRO WASTE SYSTEMS, LLC | VON ORMY, TX | Frost Bank |
| $1–2 million | METROPLAN, INC. | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | METROPLEX GRAPHICS AND MARKETING, INC. | RICHLAND HILLS, TX | Frost Bank |
| $350,000–1 million | METROPOLITAN COLLISION SERVICE INC. | HOUSTON, TX | Frost Bank |
| $150,000–350,000 | MEYER DUNLAP INC. | DALLAS, TX | Frost Bank |
| $150,000–350,000 | MEYERLAND GLASS & MIRROR CO. | STAFFORD, TX | Frost Bank |
| $350,000–1 million | MFBC INCORPORATED | GEORGETOWN, TX | Frost Bank |
| $350,000–1 million | MFC CONTRACTING, L.L.C | GRAPEVINE, TX | Frost Bank |
| $5–10 million | MHI PARTNERSHIP, LTD. | HOUSTON, TX | Frost Bank |
| $350,000–1 million | MHK TECH INC | HOUSTON, TX | Frost Bank |
| $2–5 million | MI TIERRA CAFE & BAKERY | SAN ANTONIO, TX | Frost Bank |
| $350,000–1 million | MICHAEL COWEN LAW FIRM, P.C. | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | MICHAEL E. JAMES & ASSOCIATES, INC. | AUSTIN, TX | Frost Bank |
| $150,000–350,000 | MICHAEL E. TSCHICKARDT, M.D., P.A. | CORPUS CHRISTI, TX | Frost Bank |
| $150,000–350,000 | MICHAEL E. WEHRLE, D.D.S., P.A. | HURST, TX | Frost Bank |
| $150,000–350,000 | MICHAELIS ENTERPRISES, INC. | FORT WORTH, TX | Frost Bank |
| $350,000–1 million | MICHELLE LING SHEN LTD | EULESS, TX | Frost Bank |
| $150,000–350,000 | MICROBIOLOGY SPECIALIST INCORPORATED | HOUSTON, TX | Frost Bank |
| $2–5 million | MID-COAST ELECTRIC SUPPLY, INC | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | MID-VALLEY PAHTOLOGY, PLLC | WESLACO, TX | Frost Bank |
| $150,000–350,000 | MIDDLEBROOK I GOODSPEED, PLLC | GRAPEVINE, TX | Frost Bank |
| $150,000–350,000 | MIDDLEMAN CONSTRUCTION COMPANY LLC | SAN ANTONIO, TX | Frost Bank |
| $350,000–1 million | MIDLAND COMMUNITY HEALTHCARE SERVICES | MIDLAND, TX | Frost Bank |
| $350,000–1 million | MIDLAND VISION HEALTH SPECIALTIES LLP | MIDLAND, TX | Frost Bank |
| $350,000–1 million | MIKA DIGITAL SERVICES INC. | EULESS, TX | Frost Bank |
| $150,000–350,000 | MIKE'S GARDEN CENTER, INC. | FORT WORTH, TX | Frost Bank |
| $150,000–350,000 | MIKESKA, MONAHAN & PECKHAM PC | AUSTIN, TX | Frost Bank |
| $150,000–350,000 | MILAM.FELKER INSURANCE SERVICES, INC. | ODESSA, TX | Frost Bank |
| $150,000–350,000 | MILAN HOLDINGS, INC | SAN ANTONIO, TX | Frost Bank |
| $350,000–1 million | MILBERN RAY AND COMPANY, L.L.P. | GRAPEVINE, TX | Frost Bank |
| $350,000–1 million | MILESTONE BRANDS, LLC | AUSTIN, TX | Frost Bank |
| $150,000–350,000 | MILESTONE CONSTRUCTION, INC | CARROLLTON, TX | Frost Bank |
| $1–2 million | MILESTONE METALS, INC | HOUSTON, TX | Frost Bank |
| $150,000–350,000 | MILLAN & CO., P.C. | AUSTIN, TX | Frost Bank |
| $350,000–1 million | MILLARD DRYWALL & ACOUSTICAL CONSTRUCTION INC. | AUSTIN, TX | Frost Bank |
| $350,000–1 million | MILLER AND LENTS, LTD | HOUSTON, TX | Frost Bank |
| $150,000–350,000 | MILLER CONSULTING, INC. | AUSTIN, TX | Frost Bank |
| $150,000–350,000 | MILLER LAPOINT CONSTRUCTION, LLC | HOUSTON, TX | Frost Bank |
| $150,000–350,000 | MINAMOTO WHOLESALE LIMITED | AUSTIN, TX | Frost Bank |
| $150,000–350,000 | MINI COMPUTER MAINTENANCE, INC. | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | MINIT TACO 2 INC | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | MINIT TACO INC | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | MINNIE STEVENS PIPER FOUNDATION | SAN ANTONIO, TX | Frost Bank |
| $350,000–1 million | MIRA VISTA COUNTRY CLUB | FORT WORTH, TX | Frost Bank |
| $350,000–1 million | MIRELES PARTY ICE, INC. | SAN ANTONIO, TX | Frost Bank |
| $350,000–1 million | MISSION EAST DALLAS AND METROPLEX PROJECT | MESQUITE, TX | Frost Bank |
| $350,000–1 million | MISSION ELECTRIC SUPPLY, INC. | SAN ANTONIO, TX | Frost Bank |
| $350,000–1 million | MISSION WRECKER SERVICE S.A. INC | CONVERSE, TX | Frost Bank |
| $150,000–350,000 | MITCHELL HISTORIC PROPERTIES | SPRING, TX | Frost Bank |
| $150,000–350,000 | MJC ENTERPRISES INC | HOUSTON, TX | Frost Bank |
| $150,000–350,000 | MJD EFFECTS, LLC | KELLER, TX | Frost Bank |
| $1–2 million | MK CUSTOM ROOFING, INC. | RICHLAND HILLS, TX | Frost Bank |
| $150,000–350,000 | MK PERSONNEL | HOUSTON, TX | Frost Bank |
| $350,000–1 million | MK1 CONSTRUCTION SERVICES L.L.C. | SAN ANTONIO, TX | Frost Bank |
| $2–5 million | MKV ENTERPRISES INC | PANTEGO, TX | Frost Bank |
| $150,000–350,000 | MLA STORES, LLC | BOERNE, TX | Frost Bank |
| $150,000–350,000 | MMEX RESOURCES CORPORATION | AUSTIN, TX | Frost Bank |
| $1–2 million | MMLJ INC | HOUSTON, TX | Frost Bank |
| $150,000–350,000 | MO VAC SERVICE COMPANY OF ALICE | EDINBURG, TX | Frost Bank |
| $350,000–1 million | MO-VAC SERVICE COMPANY, INC. | EDINBURG, TX | Frost Bank |
| $150,000–350,000 | MOBILE ELECTRIC POWER SOLUTION, INC. | GARLAND, TX | Frost Bank |
| $150,000–350,000 | MOBILE H.T.S., LLC | PEARLAND, TX | Frost Bank |
| $350,000–1 million | MOBILE LOAVES & FISHES, INC. | AUSTIN, TX | Frost Bank |
| $350,000–1 million | MOBILEASE INC. | HOUSTON, TX | Frost Bank |
| $150,000–350,000 | MOCZULSKI & MOCZULSKI PROPERTIES INC | HOUSTON, TX | Frost Bank |
| $150,000–350,000 | MODERN CONTRACTORS INC. | BEDFORD, TX | Frost Bank |
| $350,000–1 million | MODSIW MANAGEMENT OF TEXAS INC. | AUSTIN, TX | Frost Bank |
| $150,000–350,000 | MOELLER INGALLS, LLC | NEW BRAUNFELS, TX | Frost Bank |
| $350,000–1 million | MOHAWK ENERGY LTD. | HOUSTON, TX | Frost Bank |
| $150,000–350,000 | MOLECULE SOFTWARE INC. | HOUSTON, TX | Frost Bank |
| $150,000–350,000 | MOMENTUM APPRAISAL MANAGEMENT GROUP, INC. | SAN ANTONIO, TX | Frost Bank |
| $350,000–1 million | MOMENTUM MECHANICAL, INC. | FORT WORTH, TX | Frost Bank |
| $150,000–350,000 | MOODY LAW GROUP, LLC | HOUSTON, TX | Frost Bank |
| $150,000–350,000 | MOONTOWER LLC | AUSTIN, TX | Frost Bank |
| $350,000–1 million | MOORE'S HILL COUNTRY LUMBER LP | KERRVILLE, TX | Frost Bank |
| $1–2 million | MOORING RECOVERY SERVICES, INC. | GRAND PRAIRIE, TX | Frost Bank |
| $150,000–350,000 | MOREHANDS.COM, INC. | AUSTIN, TX | Frost Bank |
| $350,000–1 million | MORELAND PROPERTIES, INC. | AUSTIN, TX | Frost Bank |
| $150,000–350,000 | MORGAN AIR SERVICES, LLC | HOUSTON, TX | Frost Bank |
| $350,000–1 million | MORGAN ELECTRIC, INC. | KELLER, TX | Frost Bank |
| $1–2 million | MORROW ENERGY LLC | MIDLAND, TX | Frost Bank |
| $350,000–1 million | MORTELLARO'S NURSERY LTD | SCHERTZ, TX | Frost Bank |
| $150,000–350,000 | MOSAIC LAND DEVELOPMENT, LLC | SAN ANTONIO, TX | Frost Bank |
| $350,000–1 million | MOSS, LUSE & WOMBLE, LLC | ADDISON, TX | Frost Bank |
| $2–5 million | MOSSY NISSAN TX INC | HOUSTON, TX | Frost Bank |
| $150,000–350,000 | MOTOCICLETTA, INC. | GRAPEVINE, TX | Frost Bank |