| $1–2 million | NATIONAL TECHNOLOGIES, INC. | OAK CREEK, WI | First Midwest Bank |
| $150,000–350,000 | NATIONWIDE WIRELESS IL LLC | CHICAGO, IL | First Midwest Bank |
| $350,000–1 million | NATOLA CONCRETE, INC. | DES PLAINES, IL | First Midwest Bank |
| $350,000–1 million | NEL FREQUENCY CONTROLS, INC. | BURLINGTON, WI | First Midwest Bank |
| $150,000–350,000 | NEUROLOGICAL MONITORING ASSOCIATES, LLC | MILWAUKEE, WI | First Midwest Bank |
| $150,000–350,000 | NEW TITLE SERVICES, INC. | APPLETON, WI | First Midwest Bank |
| $350,000–1 million | NEWHAVEN DISPLAY INTERNATIONAL, INC. | ELGIN, IL | First Midwest Bank |
| $350,000–1 million | NGS PRINTING | ELGIN, IL | First Midwest Bank |
| $150,000–350,000 | NICHOLAS V RICCIO, DMD, PC D/B/A KLEPACKI AND BLAIR ORTHODONTICS | HINSDALE, IL | First Midwest Bank |
| $350,000–1 million | NIES ENGINEERING, INC. | HAMMOND, IN | First Midwest Bank |
| $150,000–350,000 | NORDIC PROPERTIES LTD | GRAYSLAKE, IL | First Midwest Bank |
| $150,000–350,000 | NORDSTROM & ASSOCIATES, P.C. | LAKE ZURICH, IL | First Midwest Bank |
| $350,000–1 million | NORTH CHURCH NURSING & REHAB, LLC | JACKSONVILLE, IL | First Midwest Bank |
| $350,000–1 million | NORTH PALM MOTORS LLC | PALM BEACH GARDENS, FL | First Midwest Bank |
| $150,000–350,000 | NORTH SHORE ALLERGY AND ASTHMA, S.C. | GURNEE, IL | First Midwest Bank |
| $350,000–1 million | NORTH SUBURBAN SYNAGOGUE BETH EL | HIGHLAND PARK, IL | First Midwest Bank |
| $150,000–350,000 | NORTHEAST ILLINOIS HEATING & AIR CONDITIONINIG CORP. | WAUKEGAN, IL | First Midwest Bank |
| $150,000–350,000 | NORTHSIDE CAF?, INC. | CHICAGO, IL | First Midwest Bank |
| $150,000–350,000 | NORTHWEST ORAL SURGEONS PC | SCHERERVILLE, IN | First Midwest Bank |
| $150,000–350,000 | NORTHWESTERN EXTRACT CO. | GERMANTOWN, WI | First Midwest Bank |
| $1–2 million | NOVAK CONSTRUCTION COMPANY | CHICAGO, IL | First Midwest Bank |
| $150,000–350,000 | NTE AVIATION, LLC | LEWISVILLE, TX | First Midwest Bank |
| $150,000–350,000 | NU-WAY ELECTRONICS | ELK GROVE VILLAGE, IL | First Midwest Bank |
| $1–2 million | NUTRIVO, LLC | AURORA, IL | First Midwest Bank |
| $1–2 million | O'HAGAN MEYER LLC | CHICAGO, IL | First Midwest Bank |
| $350,000–1 million | O'HAGAN MEYER LLP | WOODLAND HILLS, CA | First Midwest Bank |
| $1–2 million | O'HAGAN MEYER PLLC | RICHMOND, VA | First Midwest Bank |
| $350,000–1 million | O'HARE MECHANICAL CONTRACTORS, INC. | ELK GROVE VILLAGE, IL | First Midwest Bank |
| $150,000–350,000 | O'HARE PRECISION METALS, LLC | ARLINGTON HEIGHTS, IL | First Midwest Bank |
| $150,000–350,000 | OB/GYN HEALTH ASSOCIATES | ORLAND PARK, IL | First Midwest Bank |
| $150,000–350,000 | OBRIEN | ST CHARLES, IL | First Midwest Bank |
| $150,000–350,000 | OCCUPATIONAL TRAINING & SUPPLY, INC. | WILLOWBROOK, IL | First Midwest Bank |
| $150,000–350,000 | OCTAGON HAIRSTYLING SHOP, INC. | GURNEE, IL | First Midwest Bank |
| $1–2 million | ODM TOOL & MANUFACTURING CO., INC. | HODGKINS, IL | First Midwest Bank |
| $350,000–1 million | OHI, LLC | ELK GROVE VILLAGE, IL | First Midwest Bank |
| $150,000–350,000 | OLD GROWTH CAPITAL, LLC | CHICAGO, IL | First Midwest Bank |
| $150,000–350,000 | OLD TOWN ACC, LLC | CHICAGO, IL | First Midwest Bank |
| $1–2 million | OLD TOWN SCHOOL OF FOLK MUSIC, INC. | CHICAGO, IL | First Midwest Bank |
| $350,000–1 million | OLSON TRANSPORTATION, INC. | GURNEE, IL | First Midwest Bank |
| $350,000–1 million | OLYMPIC EXPRESS, INC. | OAK CREEK, WI | First Midwest Bank |
| $150,000–350,000 | OLYMPIC STORE FIXTURES INC. | CHICAGO, IL | First Midwest Bank |
| $1–2 million | OLYMPUS GROUP, INC. | MILWAUKEE, WI | First Midwest Bank |
| $350,000–1 million | OMNI YOUTH SERVICES | BUFFALO GROVE, IL | First Midwest Bank |
| $350,000–1 million | ONCOURSE INFORMATION SERVICES, INC. | MILWAUKEE, WI | First Midwest Bank |
| $150,000–350,000 | ONYX DISTRIBUTION & SERVICES LLC | CHICAGO, IL | First Midwest Bank |
| $150,000–350,000 | ONYX ELECTRIC, INC. | FORT MYERS, FL | First Midwest Bank |
| $150,000–350,000 | OPH #1, INC | ORLAND PARK, IL | First Midwest Bank |
| $150,000–350,000 | ORAL & MAXILLOFACIAL SURGERY OF CHICAGO | ORLAND PARK, IL | First Midwest Bank |
| $150,000–350,000 | ORCHARD HILL CONSTRUCTION LLC | COUNTRYSIDE, IL | First Midwest Bank |
| $150,000–350,000 | ORGANIZING NEIGHBORHOODS FOR EQUALITY: NORTHSIDE (ONE NORTHSIDE) | CHICAGO, IL | First Midwest Bank |
| $150,000–350,000 | ORTHODONTIC SPECIALISTS, PC | MUNSTER, IN | First Midwest Bank |
| $350,000–1 million | OSTROM PAINTING & SANDBLASTING, INC. | ROCK ISLAND, IL | First Midwest Bank |
| $1–2 million | OSULLIVAN PLUMBING INC | MOKENA, IL | First Midwest Bank |
| $150,000–350,000 | OTTIMO LLC | ORLAND PARK, IL | First Midwest Bank |
| $350,000–1 million | OUR LADY OF ANGELS RETIREMENT HOME | JOLIET, IL | First Midwest Bank |
| $150,000–350,000 | OUR LADY OF HUMILITY CHURCH | BEACH PARK, IL | First Midwest Bank |
| $350,000–1 million | OUTSTANDING WOOD LOOKS INCORPORATED | DES PLAINES, IL | First Midwest Bank |
| $150,000–350,000 | OVERLAND BOND & INVESTMENT CORPORATION | CHICAGO, IL | First Midwest Bank |
| $150,000–350,000 | P & G ENGINEERING | PALOS PARK, IL | First Midwest Bank |
| $2–5 million | P.T. FERRO CONSTRUCTION CO | JOLIET, IL | First Midwest Bank |
| $350,000–1 million | PACKERLAND RENT-A-MAT, INC | BUTLER, WI | First Midwest Bank |
| $350,000–1 million | PALERMO PIZZA INC | OAK LAWN, IL | First Midwest Bank |
| $350,000–1 million | PALLETMAXX, INC | CRESTWOOD, IL | First Midwest Bank |
| $150,000–350,000 | PALMIRA GOLF AND COUNTRY CLUB INC | ST. JOHN, IN | First Midwest Bank |
| $150,000–350,000 | PALOS ANIMAL HOSPITAL, P.C. | PALOS HEIGHTS, IL | First Midwest Bank |
| $150,000–350,000 | PALOS HILLS SURGERY CENTER | PALOS HILLS, IL | First Midwest Bank |
| $150,000–350,000 | PAR TOWING INCORPORATED | HICKORY HILLS, IL | First Midwest Bank |
| $350,000–1 million | PARADIGM SERVICES | SAINT PAUL, MN | First Midwest Bank |
| $150,000–350,000 | PARKLAWN ASSEMBLY OF GOD CHURCH | MILWAUKEE, WI | First Midwest Bank |
| $1–2 million | PARKVIEW ORTHOPAEDIC GROUP, SC | PALOS HEIGHTS, IL | First Midwest Bank |
| $350,000–1 million | PARTICLE TECHNOLOGY GROUP | DOWNERS GROVE, IL | First Midwest Bank |
| $150,000–350,000 | PATHWAYS HIGH, INC. | MILWAUKEE, WI | First Midwest Bank |
| $150,000–350,000 | PATRICK J. FOLLIARD CPA PC | PALOS HILLS, IL | First Midwest Bank |
| $350,000–1 million | PAUL BORG CONSTRUCTION COMPANY, INC. | CHICAGO, IL | First Midwest Bank |
| $350,000–1 million | PAUL ETCHISON DDS. LTD. | NEW LENOX, IL | First Midwest Bank |
| $350,000–1 million | PAVEMENT SOLUTIONS LLC | PALATINE, IL | First Midwest Bank |
| $150,000–350,000 | PB LUBE, INC. | BARRINGTON, IL | First Midwest Bank |
| $350,000–1 million | PEACE VILLAGE | PALOS PARK, IL | First Midwest Bank |
| $350,000–1 million | PEARL HOSPITALITY LLC | SCHAUMBURG, IL | First Midwest Bank |
| $350,000–1 million | PEARLSHIRE SCHAUMBURG LLC | SCHAUMBURG, IL | First Midwest Bank |
| $350,000–1 million | PEEL & STIK ADHESIVE PROD (BS) | WOODRIDGE, IL | First Midwest Bank |
| $1–2 million | PENTA TECHNOLOGIES INC. | BROOKFIELD, WI | First Midwest Bank |
| $150,000–350,000 | PERFORMANCE CHEMICAL & SUPPLY, INC. | TINLEY PARK, IL | First Midwest Bank |
| $1–2 million | PERFORMANCE FLOORS, CORPORATION | JOLIET, IL | First Midwest Bank |
| $150,000–350,000 | PERFORMING ARTS AT METROPOLIS | ARLINGTON HEIGHTS, IL | First Midwest Bank |
| $150,000–350,000 | PERIODONTAL MEDICINE AND SURGICAL SPECIALISTS | OAKBROOK TERRACE, IL | First Midwest Bank |
| $150,000–350,000 | PERITUS PLASTICS, LLC | MAZON, IL | First Midwest Bank |
| $350,000–1 million | PERSONNEL SPECIALISTS LTD | WEST ALLIS, WI | First Midwest Bank |
| $1–2 million | PET FACTORY, INC. | MUNDELEIN, IL | First Midwest Bank |
| $150,000–350,000 | PETE'S HEATING, VENTILATION & AIR CONDITIONING, INC. | MUNDELEIN, IL | First Midwest Bank |
| $150,000–350,000 | PETER PERELLA & CO | JOLIET, IL | First Midwest Bank |
| $150,000–350,000 | PETERSON, JOHNSON, MURRAY CHICAGO, LLC | CHICAGO, IL | First Midwest Bank |
| $150,000–350,000 | PHILIP COOK DDS LLC | WILMETTE, IL | First Midwest Bank |
| $150,000–350,000 | PHOENIX ELECTRIC | CHICAGO, IL | First Midwest Bank |
| $150,000–350,000 | PHYSICAL THERAPY AND SPORTS INJURY REHABILITATION | HAZEL CREST, IL | First Midwest Bank |
| $350,000–1 million | PINDEL GLOBAL PRECISION, INC. | NEW BERLIN, WI | First Midwest Bank |
| $150,000–350,000 | PINKSTON-TADD, INC | DEKALB, IL | First Midwest Bank |
| $150,000–350,000 | PINNACLE ELECTRIC, INC. | TINLEY PARK, IL | First Midwest Bank |
| $350,000–1 million | PINTO CONSTRUCTION GROUP, INC. | PALOS HILLS, IL | First Midwest Bank |
| $350,000–1 million | PIONEER ENGINEERING & ENVIRONMENTAL SERVICES, LLC | CHICAGO, IL | First Midwest Bank |