| $150,000–350,000 | MARKSMEN CONSTRUCTION SERVICES, INC. | INDIANAPOLIS, IN | Fifth Third Bank |
| $350,000–1 million | MARLIN CONSTRUCTION GROUP, LLC | FORT MYERS, FL | Fifth Third Bank |
| $150,000–350,000 | MARO CARTON, INC. | BELLWOOD, IL | Fifth Third Bank |
| $2–5 million | MARQUIS CORP | INDEPENDENCE, OR | Fifth Third Bank |
| $150,000–350,000 | MARSHULL, INC. | MUSKEGON, MI | Fifth Third Bank |
| $150,000–350,000 | MARTHA BRONITSKY DBA NONE | HAYWARD, CA | Fifth Third Bank |
| $1–2 million | MARTIN ENERGY GROUP, LLC | TIPTON, MO | Fifth Third Bank |
| $350,000–1 million | MARTIN RAY LAUNDRY SYSTEMS, INC. | DENVER, CO | Fifth Third Bank |
| $1–2 million | MARTIN'S RESTAURANT SYSTEMS, INC. | MABLETON, GA | Fifth Third Bank |
| $350,000–1 million | MARTINEZ & SONS LABOR CONTRACTORS LLC | LANSING, MI | Fifth Third Bank |
| $350,000–1 million | MARTINIQUE DRURY LANE LLC | OAKBROOK TERRACE, IL | Fifth Third Bank |
| $150,000–350,000 | MARVIN S. TAYLOR, D.D.S., PROFESSIONAL CORPORATION | WATERFORD, MI | Fifth Third Bank |
| $150,000–350,000 | MARWEDEL, MINICHELLO & REEB, P.C. | CHICAGO, IL | Fifth Third Bank |
| $150,000–350,000 | MARY O'CONNOR & COMPANY | SAINT CHARLES, IL | Fifth Third Bank |
| $150,000–350,000 | MARYSVILLE GRACE BRETHREN CHURCH | MARYSVILLE, OH | Fifth Third Bank |
| $150,000–350,000 | MAS PLUMBING, INC. | ROSELLE, IL | Fifth Third Bank |
| $150,000–350,000 | MASTER CARBIDE TOOLS COMPANY | PAINESVILLE, OH | Fifth Third Bank |
| $150,000–350,000 | MASTER KRAFT, INC. | MATTHEWS, NC | Fifth Third Bank |
| $150,000–350,000 | MASTHEAD BREWING COMPANY, LLC | CLEVELAND, OH | Fifth Third Bank |
| $150,000–350,000 | MATHEW KLUJIAN SONS, INC. | CHICAGO, IL | Fifth Third Bank |
| $350,000–1 million | MATHEWS FORD SANDUSKY, INC | SANDUSKY, OH | Fifth Third Bank |
| $150,000–350,000 | MATHIS & SONS SEPTIC LLC | ORLANDO, FL | Fifth Third Bank |
| $150,000–350,000 | MATRIX CONSULTING ENGINEERS, INC. | LANSING, MI | Fifth Third Bank |
| $350,000–1 million | MATT'S COOKIE COMPANY | WHEELING, IL | Fifth Third Bank |
| $150,000–350,000 | MATUSHEK NILLES LLC | CHICAGO, IL | Fifth Third Bank |
| $1–2 million | MAURER'S TEXTILE RENTAL SERVICES, INC. | DEWITT, MI | Fifth Third Bank |
| $150,000–350,000 | MAVERICK DIRECT, INC | AKRON, OH | Fifth Third Bank |
| $150,000–350,000 | MAVS G LLC | INDEPENDENCE, MO | Fifth Third Bank |
| $350,000–1 million | MAX KATZ BAG COMPANY INC | INDIANAPOLIS, IN | Fifth Third Bank |
| $150,000–350,000 | MAX'S HOSPITALITY GROUP LLC | HIGHLAND PARK, IL | Fifth Third Bank |
| $150,000–350,000 | MAYBE ENTERPRISES, LLC | NORTH AURORA, IL | Fifth Third Bank |
| $350,000–1 million | MAYER TOOL & ENGINEERING, INC. | STURGIS, MI | Fifth Third Bank |
| $2–5 million | MAYERS ELECTRIC CO.,INC | CINCINNATI, OH | Fifth Third Bank |
| $150,000–350,000 | MAYNARDS WATER CONDITIONING LLC | CALEDONIA, MI | Fifth Third Bank |
| $350,000–1 million | MAZEL & CO., INC. | CHICAGO, IL | Fifth Third Bank |
| $150,000–350,000 | MBR INC DBA ROCKY'S OF NORTHVILLE | NORTHVILLE, MI | Fifth Third Bank |
| $350,000–1 million | MC COOK COLD STORAGE CORPORATION | MCCOOK, IL | Fifth Third Bank |
| $350,000–1 million | MC PHERSON PLASTICS, INC. | OTSEGO, MI | Fifth Third Bank |
| $150,000–350,000 | MCC HEALTH CARE SERVICES INC | EVERGREEN PARK, IL | Fifth Third Bank |
| $150,000–350,000 | MCCANN PARTNERS LLC | CHICAGO, IL | Fifth Third Bank |
| $2–5 million | MCCLUSKEY CHEVROLET, INC. | LOVELAND, OH | Fifth Third Bank |
| $150,000–350,000 | MCCURDY & ASSOCIATES, INC | COLUMBUS, OH | Fifth Third Bank |
| $150,000–350,000 | MCCURDY MECHANICAL CORP. | FISHERS, IN | Fifth Third Bank |
| $2–5 million | MCDERMOTT CENTER | CHICAGO, IL | Fifth Third Bank |
| $350,000–1 million | MCDONALD AIR & SHEET METAL, INC. | ORLANDO, FL | Fifth Third Bank |
| $350,000–1 million | MCDONOUGH MECHANICAL SERVICES, INC. | WAUKEGAN, IL | Fifth Third Bank |
| $150,000–350,000 | MCEWEN TRUCKING, INC. | CORUNNA, MI | Fifth Third Bank |
| $1–2 million | MCF OPERATING, LLC | ANKENY, IA | Fifth Third Bank |
| $150,000–350,000 | MCGINTY, HITCH, PERSON, YEADON & ANDERSON, P.C. | EAST LANSING, MI | Fifth Third Bank |
| $350,000–1 million | MCGUIRE ENGINEERS, INC. | CHICAGO, IL | Fifth Third Bank |
| $150,000–350,000 | MCGUIRE'S EVERGREEN GOLF COURSE, INC. | CADILLAC, MI | Fifth Third Bank |
| $5–10 million | MCI, LC | IOWA CITY, IA | Fifth Third Bank |
| $150,000–350,000 | MCKAY'S MILL ANIMAL HOSPITAL, LLC | FRANKLIN, TN | Fifth Third Bank |
| $150,000–350,000 | MCKINNEY & NAMEI CO., L.P.A | CINCINNATI, OH | Fifth Third Bank |
| $150,000–350,000 | MCLAREN DENTAL ASSOCIATES, P.C. | MIDLAND, MI | Fifth Third Bank |
| $150,000–350,000 | MCNEELY OWNED, INCORPORATED | INDIANAPOLIS, IN | Fifth Third Bank |
| $350,000–1 million | MCNEILL CHEVROLET INC | SWANTON, OH | Fifth Third Bank |
| $350,000–1 million | MCNERNEY & ASSOCIATES, LLC | CINCINNATI, OH | Fifth Third Bank |
| $350,000–1 million | MCPENDER, INC | CINCINNATI, OH | Fifth Third Bank |
| $150,000–350,000 | MCPHERSON OIL COMPANY | HOWELL, MI | Fifth Third Bank |
| $150,000–350,000 | MD TOOLING, LLC | HOWELL, MI | Fifth Third Bank |
| $150,000–350,000 | MDCENTRIC TECHNOLOGIES, INC. | CHARLOTTE, NC | Fifth Third Bank |
| $150,000–350,000 | MDI SERVICES, LLC | ORLANDO, FL | Fifth Third Bank |
| $150,000–350,000 | MDRP RESTAURANTS, LLC | BRADENTON, FL | Fifth Third Bank |
| $150,000–350,000 | MEADOWBROOK SERVICES, LLC | MOGADORE, OH | Fifth Third Bank |
| $150,000–350,000 | MEADOWS HOTEL ASSOCIATES, LLC | PITTSBURGH, PA | Fifth Third Bank |
| $350,000–1 million | MEASUREMENT TECHNOLOGY GROUP INC | GREENWOOD, SC | Fifth Third Bank |
| $2–5 million | MEATS BY LINZ, INC. | CALUMET CITY, IL | Fifth Third Bank |
| $2–5 million | MECHANICAL CONSTRUCTION MANAGERS LLC | DAYTON, OH | Fifth Third Bank |
| $150,000–350,000 | MECHANICAL CONSULTANTS, INCORPORATED | OWENSBORO, KY | Fifth Third Bank |
| $2–5 million | MECHANICAL SYSTEMS OF DAYTON, INC | DAYTON, OH | Fifth Third Bank |
| $350,000–1 million | MECKLENBURG COMMUNITY CHURCH | CHARLOTTE, NC | Fifth Third Bank |
| $150,000–350,000 | MECKLENBURG VALVE SOURCE, LLC | CHARLOTTE, NC | Fifth Third Bank |
| $2–5 million | MECUM AUCTION INC | WALWORTH, WI | Fifth Third Bank |
| $350,000–1 million | MED EX DIRECT, LLC | WARREN, MI | Fifth Third Bank |
| $1–2 million | MED1CARE HOME HEALTH, LLC | FINDLAY, OH | Fifth Third Bank |
| $350,000–1 million | MED1CARE OF TOLEDO LTD | HOLLAND, OH | Fifth Third Bank |
| $1–2 million | MEDEFIL, INC. | GLENDALE HEIGHTS, IL | Fifth Third Bank |
| $2–5 million | MEDICAL CENTER EMERGENCY SERVICES | DETROIT, MI | Fifth Third Bank |
| $350,000–1 million | MEDICAL EMERGENCY TREATMENT CORPORATION | MAUMEE, OH | Fifth Third Bank |
| $350,000–1 million | MEDICAL RECOVERY SYSTEMS, INC | CINCINNATI, OH | Fifth Third Bank |
| $150,000–350,000 | MEDICAL VENDOR CONSULTING | WATERFORD, MI | Fifth Third Bank |
| $150,000–350,000 | MEDIGREEN WASTE SERVICES, LLC | ORLANDO, FL | Fifth Third Bank |
| $1–2 million | MEDISYNC INC. | CINCINNATI, OH | Fifth Third Bank |
| $150,000–350,000 | MEDLEY'S BRAKE & SAFETY PARTS, INC. | LOUISVILLE, KY | Fifth Third Bank |
| $150,000–350,000 | MEDLIN COMMUNICATIONS INC | BURR RIDGE, IL | Fifth Third Bank |
| $150,000–350,000 | MEDOVENT SOLUTIONS, LLC | WEST PALM BEACH, FL | Fifth Third Bank |
| $2–5 million | MEDRANO USA INC | COLUMBUS, OH | Fifth Third Bank |
| $350,000–1 million | MEDUS, INC | CINCINNATI, OH | Fifth Third Bank |
| $150,000–350,000 | MEETING ASSISTANCE INC | NAPIERVILLE, IL | Fifth Third Bank |
| $150,000–350,000 | MEG BUSINESS MANAGEMENT, LLC | BELLEAIR, FL | Fifth Third Bank |
| $150,000–350,000 | MEGA POLYMERS INC. | ROMEOVILLE, IL | Fifth Third Bank |
| $150,000–350,000 | MEGAN CARRICK, LLC | NORTHFIELD, IL | Fifth Third Bank |
| $150,000–350,000 | MEISTER SEALCOAT & SUPPLIES, LLC | SANDUSKY, OH | Fifth Third Bank |
| $150,000–350,000 | MELANIE TURNER INTERIORS, LLC | ATLANTA, GA | Fifth Third Bank |
| $150,000–350,000 | MELODY LIVING ASSOCIATES - CO, LLC | FAIRLAWN, OH | Fifth Third Bank |
| $150,000–350,000 | MELOON FOUNDRIES, LLC | SYRACUSE, NY | Fifth Third Bank |
| $350,000–1 million | MELROSE PYROTECHNICS, INC. | FRANKFORT, IL | Fifth Third Bank |
| $150,000–350,000 | MELVIN BELK ROOFING CONTRACTORS LLC | CEDAR SPRINGS, MI | Fifth Third Bank |
| $150,000–350,000 | MELVIN S GALE DBA MELVIN S GALE, M.D. AND ASSOCIATES | CINCINNATI, OH | Fifth Third Bank |