| $350,000–1 million | MCELROY PLUMBING, INC. | WAUCONDA, IL | First Midwest Bank |
| $350,000–1 million | MCR CORPORATE SERVICES, INC. | DEERFIELD, IL | First Midwest Bank |
| $350,000–1 million | MCS OPERATING LLC | WOOD DALE, IL | First Midwest Bank |
| $150,000–350,000 | MD DESIGN & AUTOMATION, INC. | WEST BEND, WI | First Midwest Bank |
| $150,000–350,000 | MDR LAW LLC | CHICAGO, IL | First Midwest Bank |
| $2–5 million | MEANY INC. | EAST HAZEL CREST, IL | First Midwest Bank |
| $2–5 million | MECCON INDUSTRIES INC | LANSING, IL | First Midwest Bank |
| $350,000–1 million | MECHANICAL & INDUSTRIAL STEEL SERVICES, INC. | CHANNAHON, IL | First Midwest Bank |
| $150,000–350,000 | MEDALLION SLEEP PRODUCT | MINNEAPOLIS, MN | First Midwest Bank |
| $150,000–350,000 | MEDICAL BUSINESS OFFICES SERVICES, INC | HILLSIDE, IL | First Midwest Bank |
| $1–2 million | MELTZER, PURTILL & STELLE LLC | SCHAUMBURG, IL | First Midwest Bank |
| $2–5 million | MENORAH PARK CENTER FOR SENIOR LIVING | BEACHWOOD, OH | First Midwest Bank |
| $150,000–350,000 | MEREDITH GANTOS DDS LLC | NAPERVILLE, IL | First Midwest Bank |
| $150,000–350,000 | MESQUITE COUNTRY BUSINESS VENTURES, LLC | ROLLING MEADOWS, IL | First Midwest Bank |
| $350,000–1 million | MET2PLASTIC, LLC | ELK GROVE VILLAGE, IL | First Midwest Bank |
| $350,000–1 million | METALCUT PRODUCTS, INC. | SOUTH MILWAUKEE, WI | First Midwest Bank |
| $350,000–1 million | METRO CHICAGO SURGICAL ONCOLOGY, LLC | WILMETTE, IL | First Midwest Bank |
| $350,000–1 million | METRO EXHIBIT CORPORATION | ROMEOVILLE, IL | First Midwest Bank |
| $350,000–1 million | METRO FORD SALES & SERVICE INC | CHICAGO, IL | First Midwest Bank |
| $350,000–1 million | MGM EXCAVATING LLC | CHICAGO, IL | First Midwest Bank |
| $150,000–350,000 | MGR FREIGHT SYSTEM INC | COUNTRYSIDE, IL | First Midwest Bank |
| $150,000–350,000 | MICHAEL J. REICHERTS MD SC | NAPERVILLE, IL | First Midwest Bank |
| $150,000–350,000 | MICHAEL P MEEHAN PC DBA: MEEHAN ORTHODONTICS | PALOS HEIGHTS, IL | First Midwest Bank |
| $150,000–350,000 | MICHAEL T. COLLETTI DDS | LOMBARD, IL | First Midwest Bank |
| $150,000–350,000 | MICHET DENTAL OFFICES PC | EVERGREEN PARK, IL | First Midwest Bank |
| $1–2 million | MID CITY CORPORATION | BUTLER, WI | First Midwest Bank |
| $150,000–350,000 | MID CITY PLUMBING, INC. | ITASCA, IL | First Midwest Bank |
| $350,000–1 million | MID-STATES INDUSTRIAL, INC | SENECA, IL | First Midwest Bank |
| $1–2 million | MIDAMERICA ORTHOPAEDICS | PALOS HILLS, IL | First Midwest Bank |
| $350,000–1 million | MIDLAND ORAL SURGERY AND IMPLANT CENTERS, LTD | OAK LAWN, IL | First Midwest Bank |
| $1–2 million | MIDSTATE MANUFACTURING COMPANY | GALESBURG, IL | First Midwest Bank |
| $1–2 million | MIDWAY INDUSTRIES, INC. | BEDFORD PARK, IL | First Midwest Bank |
| $350,000–1 million | MIDWAY PIZZA LLC | CHICAGO, IL | First Midwest Bank |
| $150,000–350,000 | MIDWAY TRAILER SALES & SERVICE, INC | BRIDGEVIEW, IL | First Midwest Bank |
| $1–2 million | MIDWEST ANIMAL HOSPITAL, LLC | ORLAND PARK, IL | First Midwest Bank |
| $350,000–1 million | MIDWEST CUSTOM BOTTLING, LLC | PEWAUKEE, WI | First Midwest Bank |
| $150,000–350,000 | MIDWEST DOCK SOLUTIONS INC | STEGER, IL | First Midwest Bank |
| $150,000–350,000 | MIDWEST ENERGY INC. | BURR RIDGE, IL | First Midwest Bank |
| $150,000–350,000 | MIDWEST FACILITY MAINTENANCE, LLC | WILMETTE, IL | First Midwest Bank |
| $1–2 million | MIDWEST ORTHOPAEDIC CONSULTANTS, S.C. | ORLAND PARK, IL | First Midwest Bank |
| $1–2 million | MIDWEST ORTHOPAEDIC INSTITUTE, P.C. | SYCAMORE, IL | First Midwest Bank |
| $2–5 million | MIDWEST PHYSICIANS ALLIANCE, INC. | PALOS PARK, IL | First Midwest Bank |
| $350,000–1 million | MIDWEST PROMOTIONAL GROUP CO. | BURR RIDGE, IL | First Midwest Bank |
| $350,000–1 million | MIDWEST TRADING HORTICULTURAL SUPPLIES, INC | MAPLE PARK, IL | First Midwest Bank |
| $150,000–350,000 | MIINEDOCTOR, INC | CRESTWOOD, IL | First Midwest Bank |
| $2–5 million | MIKE DITKA'S - CHICAGO LLC | PALOS HEIGHTS, IL | First Midwest Bank |
| $1–2 million | MIKE HAGGERTY BUICK GMC INC | OAK LAWN, IL | First Midwest Bank |
| $350,000–1 million | MIKE HAGGERTY VOLKSWAGEN | OAK LAWN, IL | First Midwest Bank |
| $350,000–1 million | MILCUT, INC. | MENOMONEE FALLS, WI | First Midwest Bank |
| $150,000–350,000 | MILLER'S AREA HEATING, INC | GRAYSLAKE, IL | First Midwest Bank |
| $150,000–350,000 | MILLWRIGHT MACHINE, INC | DYER, IN | First Midwest Bank |
| $150,000–350,000 | MILWAUKEE COUNTY WAR MEMORIAL, INC | MILWAUKEE, WI | First Midwest Bank |
| $350,000–1 million | MILWAUKEE DIRECT MARKETING | BROOKFIELD, WI | First Midwest Bank |
| $150,000–350,000 | MILWAUKEE EXCELLENCE, INC | MILWAUKEE, WI | First Midwest Bank |
| $2–5 million | MILWAUKEE INSTITUTE OF ART AND DESIGN | MILWAUKEE, WI | First Midwest Bank |
| $350,000–1 million | MILWAUKEE MENTAL HEALTH ASSOCIATES, INC. | MILWAUKEE, WI | First Midwest Bank |
| $150,000–350,000 | MILWAUKEE RESTAURANT LLC | SCHAUMBURG, IL | First Midwest Bank |
| $2–5 million | MILWAUKEE SYMPHONY ORCHESTRA INC | MILWAUKEE, WI | First Midwest Bank |
| $150,000–350,000 | MINKIN MANAGEMENT, INC | MILWAUKEE, WI | First Midwest Bank |
| $150,000–350,000 | MJC DEMOLITION, INC. | MATTESON, IL | First Midwest Bank |
| $1–2 million | MLE MERCHANDISING & SIGN SOLUTIONS, INC. | ELMHURST, IL | First Midwest Bank |
| $150,000–350,000 | MOCAT 2 | GLEN ELLYN, IL | First Midwest Bank |
| $350,000–1 million | MODERN MAINTENANCE BUILDING SERVICES, INC | NEW BERLIN, WI | First Midwest Bank |
| $350,000–1 million | MOLDING AUTOMATION CONCEPTS, INC | WOODSTOCK, IL | First Midwest Bank |
| $150,000–350,000 | MOLINE WELDING INC | MILAN, IL | First Midwest Bank |
| $150,000–350,000 | MONTESSORI CHILDREN'S SCHOOLHOUSE | HAMMOND, IN | First Midwest Bank |
| $150,000–350,000 | MORAN INDUSTRIES, INC. | MIDLOTHIAN, IL | First Midwest Bank |
| $150,000–350,000 | MORRIS CC, LLC | MORRIS, IL | First Midwest Bank |
| $1–2 million | MORRISON TIMING SCREW COMPANY DBA MORRISON CONTAINER HANDLING SOLUTIONS | GLENWOOD, IL | First Midwest Bank |
| $150,000–350,000 | MOST BLESSED TRINITY ACADEMY/CATHOLIC BISHOP OF CHICAGO | WAUKEGAN, IL | First Midwest Bank |
| $150,000–350,000 | MOST BLESSED TRINITY PARISH/CATHOLIC BISHOP OF CHICAGO | WAUKEGAN, IL | First Midwest Bank |
| $350,000–1 million | MOST HOLY REDEEMER PARISH | EVERGREEN PARK, IL | First Midwest Bank |
| $1–2 million | MOTHER MCAULEY LIBERAL ARTS HIGH SCHOOL | CHICAGO, IL | First Midwest Bank |
| $1–2 million | MQ SEWER AND WATER CONTRACTORS, INC. | CHICAGO, IL | First Midwest Bank |
| $150,000–350,000 | MRR SOFT, INC. | WAUWATOSA, WI | First Midwest Bank |
| $150,000–350,000 | MRW TRUCK REPAIR, INC. | NAPERVILLE, IL | First Midwest Bank |
| $1–2 million | MTS NY LESSEE, L.P. | NEW YORK, NY | First Midwest Bank |
| $5–10 million | MULTI-TEMPS SERVICES, INC | STONE PARK, IL | First Midwest Bank |
| $1–2 million | MULTI-TEMPS STAFFING, INC | STONE PARK, IL | First Midwest Bank |
| $150,000–350,000 | MUNSTER ANIMAL HOSPITAL | MUNSTER, IN | First Midwest Bank |
| $150,000–350,000 | MURPHY & PRACHTHAUSER, S.C. | MILWAUKEE, WI | First Midwest Bank |
| $150,000–350,000 | MURRAYS WAREHOUSING INC | DAVENPORT, IA | First Midwest Bank |
| $150,000–350,000 | MUSIC OF THE BAROQUE | CHICAGO, IL | First Midwest Bank |
| $350,000–1 million | MVP ERECTORS, LLC | CORTLAND, IL | First Midwest Bank |
| $150,000–350,000 | MYD HOLDINGS, LLC - A | NORRIDGE, IL | First Midwest Bank |
| $150,000–350,000 | MYD HOLDINGS, LLC - B | NORRIDGE, IL | First Midwest Bank |
| $150,000–350,000 | MYD HOLDINGS, LLC - C | NORRIDGE, IL | First Midwest Bank |
| $150,000–350,000 | MYD HOLDINGS, LLC - D | NORRIDGE, IL | First Midwest Bank |
| $350,000–1 million | MYD MANAGEMENT COMPANY LLC | NORRIDGE, IL | First Midwest Bank |
| $350,000–1 million | MZI BUILDING SERVICES | CHICAGO, IL | First Midwest Bank |
| $2–5 million | MZI ELECTRIC, INC. | CHICAGO, IL | First Midwest Bank |
| $1–2 million | MZI TELECOM CORP. | CHICAGO, IL | First Midwest Bank |
| $350,000–1 million | N&C IMPACT CARE SOLUTIONS INC | OAK BROOK, IL | First Midwest Bank |
| $150,000–350,000 | NAPERVILLE EXCAVATING CO. | NAPERVILLE, IL | First Midwest Bank |
| $350,000–1 million | NAPLETON ORLANDO IMPORTS LLC | ORLANDO, FL | First Midwest Bank |
| $350,000–1 million | NAPLETON SANFORD IMPORTS LLC | SANFORD, FL | First Midwest Bank |
| $1–2 million | NAPLETON'S RIVER OAKS MOTORS, INC. | LANSING, IL | First Midwest Bank |
| $150,000–350,000 | NATIONAL HELLENIC MUSEUM | CHICAGO, IL | First Midwest Bank |
| $150,000–350,000 | NATIONAL HOSPITALITY SUPPLY CO, INC | MEQUON, WI | First Midwest Bank |
| $150,000–350,000 | NATIONAL POWER LLC | CHICAGO, IL | First Midwest Bank |