| $150,000–350,000 | KMETKO AND ASSOCIATES, LTD. | CHICAGO, IL | First Midwest Bank |
| $1–2 million | KNIGHT BARRY TITLE, INC. | RACINE, WI | First Midwest Bank |
| $2–5 million | KNIGHT FACILITIES MANAGEMENT, INC. | SAGINAW, MI | First Midwest Bank |
| $150,000–350,000 | KOECKRITZ RUGS, INC. | ELK GROVE VILLAGE, IL | First Midwest Bank |
| $150,000–350,000 | KOETZ PLUMBING AND PIPING, INC. | LAKE BLUFF, IL | First Midwest Bank |
| $150,000–350,000 | KOLD-BAN INTERNATIONAL, LTD. | LAKE IN THE HILLS, IL | First Midwest Bank |
| $350,000–1 million | KOMAR SCREW CORP. | NILES, IL | First Midwest Bank |
| $150,000–350,000 | KOUBARO, INC. | CHICAGO, IL | First Midwest Bank |
| $150,000–350,000 | KOUNYADO, INC | CHICAGO, IL | First Midwest Bank |
| $350,000–1 million | KRAFTEX FLOOR CORP | WOOD DALE, IL | First Midwest Bank |
| $150,000–350,000 | KRAUSE CONSTRUCTION INC. | BLUE ISLAND, IL | First Midwest Bank |
| $1–2 million | KRUEGER BEARINGS, INC. | MILWAUKEE, WI | First Midwest Bank |
| $150,000–350,000 | KRULL WINDOW CO INC | OAK LAWN, IL | First Midwest Bank |
| $150,000–350,000 | KWI CABINETRY, INC | NILES, IL | First Midwest Bank |
| $350,000–1 million | L & L CARTAGE SERVICES, INC. | GARY, IN | First Midwest Bank |
| $350,000–1 million | L SQUARED HAIR CO., INC. | CHICAGO, IL | First Midwest Bank |
| $350,000–1 million | L&L FLOORCOVERING, INC | ROCK ISLAND, IL | First Midwest Bank |
| $150,000–350,000 | L.B. HALL ENTERPRISES, INC. | ELK GROVE VILLAGE, IL | First Midwest Bank |
| $150,000–350,000 | LA VOUTE | DEERFIELD, IL | First Midwest Bank |
| $2–5 million | LAKE BOOK MANUFACTURING, INC. | MELROSE PARK, IL | First Midwest Bank |
| $1–2 million | LAKE SHORE HEALTHCARE AND REHABILITATION CENTRE | CHICAGO, IL | First Midwest Bank |
| $150,000–350,000 | LAKELAND BUILDING SUPPLY, INC. | GURNEE, IL | First Midwest Bank |
| $350,000–1 million | LAKELAND HOLDINGS LLC | MUNDELEIN, IL | First Midwest Bank |
| $150,000–350,000 | LAKESIDE STONEWORKS, LLC | BROWN DEER, WI | First Midwest Bank |
| $350,000–1 million | LAKEVIEW FITNESS INVESTORS, LLC | CHICAGO, IL | First Midwest Bank |
| $150,000–350,000 | LAKEWOOD PAVING COMPANY LLC | NAPERVILLE, IL | First Midwest Bank |
| $350,000–1 million | LALONDE CONTRACTORS, INC. | WAUKESHA, WI | First Midwest Bank |
| $350,000–1 million | LANDMARK HEALTHCARE FACILITIES, LLC | MILWAUKEE, WI | First Midwest Bank |
| $350,000–1 million | LANG ICE COMPANY | CHICAGO, IL | First Midwest Bank |
| $350,000–1 million | LANGHENRY, GILLEN, LUNDQUIST & JOHNSON, LLC | WHEATON, IL | First Midwest Bank |
| $150,000–350,000 | LANNON TANK COMPANY | LANNON, WI | First Midwest Bank |
| $150,000–350,000 | LAW OFFICE OF MICHAEL P. MCCREADY, PC | CHICAGO, IL | First Midwest Bank |
| $150,000–350,000 | LAWN FUNERAL HOME LTD | ORLAND PARK, IL | First Midwest Bank |
| $350,000–1 million | LAWN MEDICAL CENTER SC | OAK LAWN, IL | First Midwest Bank |
| $150,000–350,000 | LAYER ONE MEDIA, INC. | MILWAUKEE, WI | First Midwest Bank |
| $350,000–1 million | LEADERSHIP RESOURCES INTERNATIONAL | PALOS HEIGHTS, IL | First Midwest Bank |
| $150,000–350,000 | LEECH BRIDGES INC | WINTHROP HARBOR, IL | First Midwest Bank |
| $350,000–1 million | LEGACY CHARTER SCHOOL | CHICAGO, IL | First Midwest Bank |
| $350,000–1 million | LEGAL AID SOCIETY OF MILWAUKEE, INC. | MILWAUKEE, WI | First Midwest Bank |
| $350,000–1 million | LEGEND HEALTHCARE, LLC | TONGANOXIE, KS | First Midwest Bank |
| $350,000–1 million | LEPAR ACQUISITION CORPORATION | EVERGREEN PARK, IL | First Midwest Bank |
| $150,000–350,000 | LEWIS, YOCKEY & BROWN, INC. | BLOOMINGTON, IL | First Midwest Bank |
| $350,000–1 million | LIFT SYSTEMS, INC. | EAST MOLINE, IL | First Midwest Bank |
| $150,000–350,000 | LIGHTS CAMERA PIXELS, LLC | CHICAGO, IL | First Midwest Bank |
| $150,000–350,000 | LINDEN GROUP INC. | ORLAND PARK, IL | First Midwest Bank |
| $350,000–1 million | LINDNER & MARSACK SC | MILWAUKEE, WI | First Midwest Bank |
| $350,000–1 million | LINDSAY, PICKETT & POSTEL, LLC | WAUKEGAN, IL | First Midwest Bank |
| $350,000–1 million | LINEAR ELECTRIC, INC. | ORLAND PARK, IL | First Midwest Bank |
| $150,000–350,000 | LINN, CAMPE & RIZZO, LTD. | WAUKEGAN, IL | First Midwest Bank |
| $150,000–350,000 | LITCHFIELD CARE CENTER | LINCOLNWOOD, IL | First Midwest Bank |
| $150,000–350,000 | LITTLE HANDS LEARNING CENTER ACADEMY INC. | CHICAGO, IL | First Midwest Bank |
| $5–10 million | LITURGICAL PUBLICATIONS, INC. | NEW BERLIN, WI | First Midwest Bank |
| $350,000–1 million | LLD ELECTRIC CO | GURNEE, IL | First Midwest Bank |
| $150,000–350,000 | LOGAN RESTAURANT GROUP | CHICAGO, IL | First Midwest Bank |
| $150,000–350,000 | LOWERY TILE COMPANY | ALSIP, IL | First Midwest Bank |
| $350,000–1 million | LP FITNESS LLC | CHICAGO, IL | First Midwest Bank |
| $350,000–1 million | LTS SALES & MARKETING, INC. | OAK BROOK, IL | First Midwest Bank |
| $350,000–1 million | LUDMAN INDUSTRIES, LLC | MILWAUKEE, WI | First Midwest Bank |
| $150,000–350,000 | LUDWIG AND COMPANY | GURNEE, IL | First Midwest Bank |
| $150,000–350,000 | LUTHERAN ASSOCIATION OF MISSIONARIES AND PILOTS U.S., INC. | BROOKFIELD, WI | First Midwest Bank |
| $2–5 million | LUTHERAN CHILD AND FAMILY SERVICES OF IL | OAKBROOK TERRACE, IL | First Midwest Bank |
| $350,000–1 million | LVJ CAFE CORPORATION | CHICAGO, IL | First Midwest Bank |
| $350,000–1 million | M & I TRUCKERS INC | CHICAGO, IL | First Midwest Bank |
| $150,000–350,000 | M & M AFFORDABLE PLUMBING INC | ROCKDALE, IL | First Midwest Bank |
| $350,000–1 million | M&M OFFICE INTERIORS, INC. | PEWAUKEE, WI | First Midwest Bank |
| $150,000–350,000 | M. T. KELLEY ELECTRIC LLC | CHICAGO RIDGE, IL | First Midwest Bank |
| $2–5 million | M.C. PREPARATORY SCHOOL OF WISCONSIN, INC. | MILWAUKEE, WI | First Midwest Bank |
| $150,000–350,000 | M.J. MILLER & CO. | BARRINGTON, IL | First Midwest Bank |
| $150,000–350,000 | MADISON PINE DENTAL CLINIC | CHICAGO, IL | First Midwest Bank |
| $350,000–1 million | MAGICK WOODS INC. | AURORA, IL | First Midwest Bank |
| $150,000–350,000 | MAGNUS SCREW PRODUCTS | CHICAGO, IL | First Midwest Bank |
| $2–5 million | MANHARD CONSULTING, LTD | LINCOLNSHIRE, IL | First Midwest Bank |
| $350,000–1 million | MANHARD TX, LLC | LINCOLNSHIRE, IL | First Midwest Bank |
| $150,000–350,000 | MARCHONE ELECTRICAL DESIGN INC | WILLOW SPRINGS, IL | First Midwest Bank |
| $150,000–350,000 | MARCY LABORATORIES, INC. | ST CHARLES, IL | First Midwest Bank |
| $1–2 million | MARED MECHANICAL CONTRACTORS CORP | MILWAUKEE, WI | First Midwest Bank |
| $2–5 million | MARIST HIGH SCHOOL | CHICAGO, IL | First Midwest Bank |
| $350,000–1 million | MARK INDUSTRIES, LTD. | ELGIN, IL | First Midwest Bank |
| $350,000–1 million | MARKETING MIRACLES, INC. | MENOMONEE FALLS, WI | First Midwest Bank |
| $350,000–1 million | MARKOFF LAW LLC | CHICAGO, IL | First Midwest Bank |
| $2–5 million | MARQUARDT MEMORIAL MANOR, INC. | WATERTOWN, WI | First Midwest Bank |
| $150,000–350,000 | MARQUE FOODS LLC | SOUTH SAN FRANCISCO, CA | First Midwest Bank |
| $150,000–350,000 | MARSHALL FURNITURE INC | ANTIOCH, IL | First Midwest Bank |
| $350,000–1 million | MARTIN IMPLEMENT SALES, INC. | ORLAND PARK, IL | First Midwest Bank |
| $350,000–1 million | MARTIN YALE INDUSTRIES, LLC | WABASH, IN | First Midwest Bank |
| $350,000–1 million | MARTINEZ UNDERGROUND, INC. | THIRD LAKE, IL | First Midwest Bank |
| $350,000–1 million | MARY BART, LLC | MILWAUKEE, WI | First Midwest Bank |
| $150,000–350,000 | MAS CHICAGO NFP | BRIDGEVIEW, IL | First Midwest Bank |
| $150,000–350,000 | MASON ADMINISTRATION LLC | DEKALB, IL | First Midwest Bank |
| $150,000–350,000 | MASTER DESIGN BUILD LLC | CHICAGO, IL | First Midwest Bank |
| $150,000–350,000 | MAT ASPHALT, LLC | CHICAGO, IL | First Midwest Bank |
| $150,000–350,000 | MATER DOLOROSA PASSIONIST RETREAT CENTER | SIERRA MADRE, CA | First Midwest Bank |
| $150,000–350,000 | MATERIAL RECOVERY, INC. | MILWAUKEE, WI | First Midwest Bank |
| $350,000–1 million | MATTHEWS ROOFING COMPANY, INC. | CHICAGO, IL | First Midwest Bank |
| $350,000–1 million | MAY AVENUE, INC. | HARTLAND, WI | First Midwest Bank |
| $350,000–1 million | MBR IN-HOME CARE, LLC D/B/A VISITING ANGELS OF ORLAND PARK | ORLAND PARK, IL | First Midwest Bank |
| $1–2 million | MBT TRANSPORT INC | MC COOK, IL | First Midwest Bank |
| $350,000–1 million | MCC HOLDINGS GROUP LLC | CHICAGO, IL | First Midwest Bank |
| $350,000–1 million | MCDERMOTT CUE MFG., LLC | MENOMONEE FALLS, WI | First Midwest Bank |
| $150,000–350,000 | MCDILL LTD | MILWAUKEE, WI | First Midwest Bank |