| $350,000–1 million | MARSHALL'S MARINE, INC. | LAKE CITY, SC | Pinnacle Bank |
| $2–5 million | MARTHA O'BRYAN CENTER, INC. | NASHVILLE, TN | Pinnacle Bank |
| $150,000–350,000 | MARTIN & RUSH MACHINING, INC. | TRINITY, NC | Pinnacle Bank |
| $150,000–350,000 | MARTIN DENTAL GROUP, LLC | KINGSPORT, TN | Pinnacle Bank |
| $350,000–1 million | MARTIN DENTISTRY, P.C. | KINGSPORT, TN | Pinnacle Bank |
| $350,000–1 million | MARTIN-BOYD CHRISTIAN HOME, INC. | CHATTANOOGA, TN | Pinnacle Bank |
| $350,000–1 million | MARTINSBURG OPERATIONS, LLC | ROANOKE, VA | Pinnacle Bank |
| $2–5 million | MARYVILLE COLLEGE | MARYVILLE, TN | Pinnacle Bank |
| $150,000–350,000 | MASONRY MANAGEMENT, INC. | LEXINGTON, NC | Pinnacle Bank |
| $150,000–350,000 | MASONRY UNLIMITED, LLC | KEARNEY, NE | Pinnacle Bank |
| $150,000–350,000 | MASRI BROTHERS INC. | ARLINGTON, TX | Pinnacle Bank |
| $150,000–350,000 | MASSMAN NELSON REINIG, P.C. | OMAHA, NE | Pinnacle Bank |
| $150,000–350,000 | MASTER CHANG'S TIGER DEN MARTIAL ARTS AND BALLET, INC. | RALEIGH, NC | Pinnacle Bank |
| $1–2 million | MASTER SERVICE COMPANIES, LLC. | KNOXVILLE, TN | Pinnacle Bank |
| $150,000–350,000 | MASTERCARE OF SOUTH CAROLINA, LLC | EASLEY, SC | Pinnacle Bank |
| $150,000–350,000 | MASTERCRAFT DENTAL COMPANY OF TEXAS | MIDLOTHIAN, TX | Pinnacle Bank |
| $150,000–350,000 | MATCHLESS LIMOUSINE, INC. | NASHVILLE, TN | Pinnacle Bank |
| $2–5 million | MATCO ELECTRIC CO. | VESTAL, NY | Pinnacle Bank |
| $350,000–1 million | MATEO TAPAS L.L.C. | DURHAM, NC | Pinnacle Bank |
| $150,000–350,000 | MATERIALS AND CHEMISTRY LABORATORY, INC. | OAK RIDGE, TN | Pinnacle Bank |
| $150,000–350,000 | MATHEWS PARTNERS, LLC | NASHVILLE, TN | Pinnacle Bank |
| $150,000–350,000 | MATTHEW JAMISON, D.D.S., P.A. | CHARLOTTE, NC | Pinnacle Bank |
| $150,000–350,000 | MATTHEW T. NORMAN, D.D.S., P.A. | GREENSBORO, NC | Pinnacle Bank |
| $350,000–1 million | MATTHEWS SPECIALTY VEHICLES, INC. | GREENSBORO, NC | Pinnacle Bank |
| $150,000–350,000 | MATTRESS GALLERY DIRECT, LLC | MURFREESBORO, TN | Pinnacle Bank |
| $150,000–350,000 | MAX MECHANICAL | ARLINGTON, TX | Pinnacle Bank |
| $350,000–1 million | MAX TRANS LOGISTICS OF CHATTANOOGA | CHATTANOOGA, TN | Pinnacle Bank |
| $1–2 million | MAXWELL ROOFING & SHEET METAL, INC. | NASHVILLE, TN | Pinnacle Bank |
| $150,000–350,000 | MAYBANK DINING GROUP, LLC | MT PLEASANT, SC | Pinnacle Bank |
| $150,000–350,000 | MAYCREATE, LLC | CHATTANOOGA, TN | Pinnacle Bank |
| $150,000–350,000 | MAYER & NEWTON | KNOXVILLE, TN | Pinnacle Bank |
| $350,000–1 million | MC ENTERPRISES, LLC | LENOIR CITY, TN | Pinnacle Bank |
| $150,000–350,000 | MCADAMS AND MCADAMS, INC. | ARCHDALE, NC | Pinnacle Bank |
| $150,000–350,000 | MCBJSG PEST LLC | MIDLOTHIAN, TX | Pinnacle Bank |
| $350,000–1 million | MCBRIDE-OWENS, INC. | CLEMMONS, NC | Pinnacle Bank |
| $150,000–350,000 | MCBROTHERS, INC. | CLARKESVILLE, GA | Pinnacle Bank |
| $150,000–350,000 | MCCABE PUB, INC. | NASHVILLE, TN | Pinnacle Bank |
| $150,000–350,000 | MCCANNON GRANITE CO., INC. | ELBERTON, GA | Pinnacle Bank |
| $350,000–1 million | MCCOOK CLINIC, P.C. | MC COOK, NE | Pinnacle Bank |
| $350,000–1 million | MCCRACKEN AUTOMOTIVE LLC | UNADILLA, GA | Pinnacle Bank |
| $350,000–1 million | MCCULLEY ENTERPRISES, INC. | NASHVILLE, TN | Pinnacle Bank |
| $150,000–350,000 | MCCULLOUGH ELECTRIC CO., LLC | NASHVILLE, TN | Pinnacle Bank |
| $350,000–1 million | MCDREAMS ENTERPRISES, INC. | CLARKESVILLE, GA | Pinnacle Bank |
| $150,000–350,000 | MCDUFFY ENTERPRISES, L.L.C. | SHREVEPORT, LA | Pinnacle Bank |
| $1–2 million | MCELVEEN BUICK-GMC, INC. | SUMMERVILLE, SC | Pinnacle Bank |
| $150,000–350,000 | MCGEHEE CLINIC FOR ANIMALS PC | MEMPHIS, TN | Pinnacle Bank |
| $350,000–1 million | MCGEHEE ENGINEERING CORP. | JASPER, AL | Pinnacle Bank |
| $350,000–1 million | MCKAMEY-GATES II, LLC | RICHMOND, KY | Pinnacle Bank |
| $350,000–1 million | MCKAMEY-GATES, INC | RICHMOND, KY | Pinnacle Bank |
| $1–2 million | MCKAY BOOKS INCORPORATED | CHATTANOOGA, TN | Pinnacle Bank |
| $150,000–350,000 | MCKAY BOOKS NC, LLC | CHATTANOOGA, TN | Pinnacle Bank |
| $150,000–350,000 | MCKEANS FLOOR COVERING & COUNTERTOPS, INC | LA VISTA, NE | Pinnacle Bank |
| $150,000–350,000 | MCKENZIE CONSTRUCTION, LLC | NASHVILLE, TN | Pinnacle Bank |
| $150,000–350,000 | MCKINNEY INSURANCE SERVICES, INC. | ASHEVILLE, NC | Pinnacle Bank |
| $350,000–1 million | MCKUIN PIPELINE INC. | HOLLISTER, CA | Pinnacle Bank |
| $150,000–350,000 | MCLEROY'S ENTERPRISES, INC. | CLARKESVILLE, GA | Pinnacle Bank |
| $350,000–1 million | MCMAHAN LAW FIRM, P.C. | CHATTANOOGA, TN | Pinnacle Bank |
| $150,000–350,000 | MCMURRY & COMPANY, PLLC | KNOXVILLE, TN | Pinnacle Bank |
| $350,000–1 million | MCPEAKE HOTELS, INC. | SOUTHERN PINES, NC | Pinnacle Bank |
| $150,000–350,000 | MCPHERSON FAMILY EYE CARE, OD, PA | WAKE FOREST, NC | Pinnacle Bank |
| $1–2 million | MCROCKET, LLC | KNOXVILLE, TN | Pinnacle Bank |
| $1–2 million | MDG MASONRY LLC | ARLINGTON, TX | Pinnacle Bank |
| $350,000–1 million | MEADORS, INC. | CHARLESTON, SC | Pinnacle Bank |
| $1–2 million | MEADOWBROOK CARE CENTER | CLEVELAND, TN | Pinnacle Bank |
| $150,000–350,000 | MECHANICAL PIPE & SUPPLY COMPANY, L.P. | NASHVILLE, TN | Pinnacle Bank |
| $1–2 million | MECHANICAL RESOURCE GROUP, LLC | NASHVILLE, TN | Pinnacle Bank |
| $350,000–1 million | MECHANICAL SALES INC. | OMAHA, NE | Pinnacle Bank |
| $150,000–350,000 | MECHANICAL SALES MIDWEST INC. | OMAHA, NE | Pinnacle Bank |
| $150,000–350,000 | MED-CARE. INC | GRAND ISLAND, NE | Pinnacle Bank |
| $350,000–1 million | MEDAXION, INC. | NASHVILLE, TN | Pinnacle Bank |
| $350,000–1 million | MEDCYCLE MANAGEMENT, LLC | BRENTWOOD, TN | Pinnacle Bank |
| $150,000–350,000 | MEDIA WHISPER LLC | NASHVILLE, TN | Pinnacle Bank |
| $150,000–350,000 | MEDICAL CONSULTING SOLUTIONS, INC. | HIGH POINT, NC | Pinnacle Bank |
| $150,000–350,000 | MEDICAL FORMS MANAGEMENT, INC. | NASHVILLE, TN | Pinnacle Bank |
| $150,000–350,000 | MEDICAL JUSTICE SERVICES, INC | GREENSBORO, NC | Pinnacle Bank |
| $150,000–350,000 | MEDLINK, LLC | OMAHA, NE | Pinnacle Bank |
| $350,000–1 million | MEEHAN CONTRACTORS, LTD | MANSFIELD, TX | Pinnacle Bank |
| $150,000–350,000 | MEEHAN CORPORATION | NASHVILLE, TN | Pinnacle Bank |
| $150,000–350,000 | MEGAN M. RAYNOR, DMD, PLLC | HARRISBURG, NC | Pinnacle Bank |
| $150,000–350,000 | MEGATRADE INTERNATIONAL, INC. | MIAMI, FL | Pinnacle Bank |
| $350,000–1 million | MEMPHIS CONSUMER CREDIT ASSOCIATION, INC. | MEMPHIS, TN | Pinnacle Bank |
| $350,000–1 million | MEMPHIS LEADERSHIP FOUNDATION, INC. | MEMPHIS, TN | Pinnacle Bank |
| $150,000–350,000 | MEMPHIS MANAGEMENT PARTNERS, LLC | MEMPHIS, TN | Pinnacle Bank |
| $150,000–350,000 | MEMPHIS MUSEUMS, INC. | MEMPHIS, TN | Pinnacle Bank |
| $350,000–1 million | MEMPHIS RISE ACADEMY, INC. | MEMPHIS, TN | Pinnacle Bank |
| $150,000–350,000 | MEMPHIS WAX CENTER LLC | GERMANTOWN, TN | Pinnacle Bank |
| $150,000–350,000 | MENCER'S TREE SERVICE, LLC | KNOXVILLE, TN | Pinnacle Bank |
| $150,000–350,000 | MENDING HEARTS INC. | NASHVILLE, TN | Pinnacle Bank |
| $150,000–350,000 | MENIMA LLC | MEMPHIS, TN | Pinnacle Bank |
| $150,000–350,000 | MENTAL HEALTH ASSOCIATION OF MIDDLE TENNESSEE | NASHVILLE, TN | Pinnacle Bank |
| $150,000–350,000 | MERAKI, LLC | KEARNEY, NE | Pinnacle Bank |
| $150,000–350,000 | MERCANTILE PARTNERS, L. P. | FORT WORTH, TX | Pinnacle Bank |
| $350,000–1 million | MERCY HILL CHURCH | GREENSBORO, NC | Pinnacle Bank |
| $150,000–350,000 | MERIDIAN 3D, INC. | GREENSBORO, NC | Pinnacle Bank |
| $350,000–1 million | MERIDIAN HOTEL PARTNERS, LLC | FRANKLIN, TN | Pinnacle Bank |
| $1–2 million | MERIDIAN RACK & PINION, INC. | SAN DIEGO, CA | Pinnacle Bank |
| $2–5 million | MERRYMAN-FARR, LLC | NASHVILLE, TN | Pinnacle Bank |
| $350,000–1 million | METALWORKING SOLUTIONS, LLC | CHATTANOOGA, TN | Pinnacle Bank |
| $350,000–1 million | METRO BOILER TUBE COMPANY, INC | RINGGOLD, GA | Pinnacle Bank |
| $150,000–350,000 | METRO CONSTRUCTION, LLC | MEMPHIS, TN | Pinnacle Bank |