| $350,000–1 million | CHAMLIN & ASSOCIATES INC. EMPLOYEE STOCK OWNERSHIP PLAN AND TRUST | PERU, IL | First Midwest Bank |
| $150,000–350,000 | CHANDLER SERVICES, INC. | MOKENA, IL | First Midwest Bank |
| $350,000–1 million | CHARLES AUSTIN HOLDINGS LLC | CHICAGO, IL | First Midwest Bank |
| $350,000–1 million | CHECKERS RESTAURANTS | MILWAUKEE, WI | First Midwest Bank |
| $150,000–350,000 | CHEF KLAUS BIER STUBE, INC. | FRANKFORT, IL | First Midwest Bank |
| $1–2 million | CHEMICAL LIGHT, INC. | VERNON HILLS, IL | First Midwest Bank |
| $350,000–1 million | CHEMRITE COPAC, INC. | LANNON, WI | First Midwest Bank |
| $150,000–350,000 | CHEST PHYSICIAN CONSULTANTS, LTD | MUNSTER, IN | First Midwest Bank |
| $350,000–1 million | CHESTNUT HEALTH OF ILLINOIS | ELGIN, IL | First Midwest Bank |
| $150,000–350,000 | CHI TUNG RESTAURANT, INC. | EVERGREEN PARK, IL | First Midwest Bank |
| $150,000–350,000 | CHICAGO 1967 LLC | NORRIDGE, IL | First Midwest Bank |
| $150,000–350,000 | CHICAGO ACCESS CORP. (CAN TV) | CHICAGO, IL | First Midwest Bank |
| $150,000–350,000 | CHICAGO CENTER FOR PLASTIC & RECONSTRUCTIVE SURGERY | CHICAGO, IL | First Midwest Bank |
| $350,000–1 million | CHICAGO COSMETIC SURGERY & DERMATOLOGY SC | CHICAGO, IL | First Midwest Bank |
| $350,000–1 million | CHICAGO ENVELOPE INC | CAROL STREAM, IL | First Midwest Bank |
| $150,000–350,000 | CHICAGO FLYHOUSE INC. | CHICAGO, IL | First Midwest Bank |
| $150,000–350,000 | CHICAGO HAND AND ORTHOPEDIC SURGERY CENTERS | SCHAUMBURG, IL | First Midwest Bank |
| $150,000–350,000 | CHICAGO INDUSTRIAL RETREADERS | SOUTH HOLLAND, IL | First Midwest Bank |
| $150,000–350,000 | CHICAGO INTERMODAL TRANSPORTATION, INC. | CICERO, IL | First Midwest Bank |
| $150,000–350,000 | CHICAGO JEWISH FUNERALS | BUFFALO GROVE, IL | First Midwest Bank |
| $150,000–350,000 | CHICAGO LEGAL CLINIC, INC. | CHICAGO, IL | First Midwest Bank |
| $150,000–350,000 | CHICAGO LOGISTIC SERVICE INC | ELGIN, IL | First Midwest Bank |
| $150,000–350,000 | CHICAGO MARMON TRUCKS, INC. | PHOENIX, IL | First Midwest Bank |
| $1–2 million | CHICAGO PARTS & SOUND, LLC. | ELK GROVE VILLAGE, IL | First Midwest Bank |
| $150,000–350,000 | CHICAGO POWER & COMMUNICATIONS, INC. | ALSIP, IL | First Midwest Bank |
| $150,000–350,000 | CHICAGO SPORTS & NOVELTY, INC | CHICAGO, IL | First Midwest Bank |
| $150,000–350,000 | CHICAGO SW SUBURBAN COMMUNITY PARISH & COMMUNITY CENTER FOUNDATION | PALOS PARK, IL | First Midwest Bank |
| $350,000–1 million | CHICAGO TESTING LABORATORY, INC. | THORNTON, IL | First Midwest Bank |
| $350,000–1 million | CHICAGO TIRE | SOUTH HOLLAND, IL | First Midwest Bank |
| $150,000–350,000 | CHICAGO TRAILER POOL CORP | ELGIN, IL | First Midwest Bank |
| $350,000–1 million | CHICAGO TURNRITE CO., INC. | CHICAGO, IL | First Midwest Bank |
| $350,000–1 million | CHICAGOLAND QUAD CITIES EXPRESS, INC. | BRIDGEVIEW, IL | First Midwest Bank |
| $150,000–350,000 | CHILD ABUSE COUNCIL | MOLINE, IL | First Midwest Bank |
| $1–2 million | CHILTON YAMBERT PORTER LLP | CHICAGO, IL | First Midwest Bank |
| $1–2 million | CHINESE MUTUAL AID ASSOCIATION | CHICAGO, IL | First Midwest Bank |
| $1–2 million | CHRIST CHURCH OF OAK BROOK | OAK BROOK, IL | First Midwest Bank |
| $350,000–1 million | CHRIST THE KING PARISH | CHICAGO, IL | First Midwest Bank |
| $150,000–350,000 | CHRIST UNIVERSAL TEMPLE, INC. | CHICAGO, IL | First Midwest Bank |
| $150,000–350,000 | CHRIST-ST.PETER LUTHERAN SCHOOL INC. | MILWAUKEE, WI | First Midwest Bank |
| $150,000–350,000 | CHRISTIAN BROTHERS OF THE MIDWEST | BURR RIDGE, IL | First Midwest Bank |
| $2–5 million | CHRISTOPHER HOUSE | CHICAGO, IL | First Midwest Bank |
| $2–5 million | CIC PLUS, INC. | SKOKIE, IL | First Midwest Bank |
| $350,000–1 million | CIRCLE CREATIONS DBA LION CIRCLE | CHICAGO, IL | First Midwest Bank |
| $350,000–1 million | CIRCLE ELECTRIC, INC. | BUTLER, WI | First Midwest Bank |
| $350,000–1 million | CIRCLE FOUNDATION | CHICAGO, IL | First Midwest Bank |
| $150,000–350,000 | CITY CHILDRENS ACADEMY | CHICAGO, IL | First Midwest Bank |
| $150,000–350,000 | CITY LINE VETERINARY CENTER, LLC | MOLINE, IL | First Midwest Bank |
| $1–2 million | CITY STAFFING | CHICAGO, IL | First Midwest Bank |
| $350,000–1 million | CL VENDING INC. | CEDAR LAKE, IN | First Midwest Bank |
| $150,000–350,000 | CLASSIC TOUCH PAINTING INC | HOMER GLEN, IL | First Midwest Bank |
| $350,000–1 million | CLEAN CAR CONNEXION | JOLIET, IL | First Midwest Bank |
| $150,000–350,000 | CLECO INDUSTRIAL FASTENERS COMPANY INC | HARVEY, IL | First Midwest Bank |
| $150,000–350,000 | CLEVELAND CORPORATION | ZION, IL | First Midwest Bank |
| $150,000–350,000 | CLINICAL CONNECTIONS, INC | BANNOCKBURN, IL | First Midwest Bank |
| $1–2 million | CLINICARE CORPORATION | WAUWATOSA, WI | First Midwest Bank |
| $350,000–1 million | CLOVERLEAF FARMS DISTRIBUTORS, L.L.C. | CRESTWOOD, IL | First Midwest Bank |
| $150,000–350,000 | CLOVERLEAF REAL ESTATE GROUP, INC. | NORTHBROOK, IL | First Midwest Bank |
| $350,000–1 million | CLUB LUCKY INC. | CHICAGO, IL | First Midwest Bank |
| $150,000–350,000 | CMK DEVELOPMENT-CHICAGO, LLC | CHICAGO, IL | First Midwest Bank |
| $150,000–350,000 | CML USA INC | DAVENPORT, IA | First Midwest Bank |
| $150,000–350,000 | COACH EVE LEARN TO SWIM | OAK LAWN, IL | First Midwest Bank |
| $350,000–1 million | COLBORNE ACQUISITION COMPANY, LLC | LAKE FOREST, IL | First Midwest Bank |
| $150,000–350,000 | COLE WIRE & CABLE CO., INC. | LINCOLNSHIRE, IL | First Midwest Bank |
| $1–2 million | COLLINS CONSULTING, INC. | SCHAUMBURG, IL | First Midwest Bank |
| $350,000–1 million | COLLISION DAMGE EXPERTS GROUP LLC | TINLEY PARK, IL | First Midwest Bank |
| $150,000–350,000 | COLONIAL BRICK CO INC | CHICAGO, IL | First Midwest Bank |
| $350,000–1 million | COLVIN MASONRY CO. | SAINT JOHN, IN | First Midwest Bank |
| $150,000–350,000 | COMMERCIAL FOOD SYSTEMS, INC | BRIDGEVIEW, IL | First Midwest Bank |
| $2–5 million | COMMON LINKS CONSTRUCTION, LLC | BROOKFIELD, WI | First Midwest Bank |
| $150,000–350,000 | COMMON SENSE SOLUTIONS | DARIEN, IL | First Midwest Bank |
| $150,000–350,000 | COMMONWEALTH VENTURES, LLC | CHICAGO, IL | First Midwest Bank |
| $150,000–350,000 | COMMUNICOR. INC. | MILWAUKEE, WI | First Midwest Bank |
| $1–2 million | COMMUNITY CHRISTIAN CHURCH OF NAPERVILLE | NAPERVILLE, IL | First Midwest Bank |
| $150,000–350,000 | COMMUNITY HOUSING SERVICES | ROCK ISLAND, IL | First Midwest Bank |
| $150,000–350,000 | COMMUNITY YOUTH NETWORK, INC. | GRAYSLAKE, IL | First Midwest Bank |
| $350,000–1 million | COMPANION ANIMAL HOSPITAL OF HYDE PARK, LLC | CHICAGO, IL | First Midwest Bank |
| $150,000–350,000 | COMPANION ANIMAL HOSPITAL OF NORRIDGE | NORRIDGE, IL | First Midwest Bank |
| $150,000–350,000 | COMPANION ANIMAL HOSPITAL RIVER NORTH LLC | CHICAGO, IL | First Midwest Bank |
| $350,000–1 million | COMPLETE TRANSPORT REFRIGERATION SERVICE, INC. | CHICAGO, IL | First Midwest Bank |
| $150,000–350,000 | COMPUTER VIEW, INC. | DOWNERS GROVE, IL | First Midwest Bank |
| $350,000–1 million | CONCEPT LABORATORIES INC | CHICAGO, IL | First Midwest Bank |
| $350,000–1 million | CONCORD NURSING AND REHABILITATION CENTER, LLC | OAK LAWN, IL | First Midwest Bank |
| $1–2 million | CONCRETE BY WAGNER INC | LOCKPORT, IL | First Midwest Bank |
| $350,000–1 million | CONDATA GLOBAL INC. | MOKENA, IL | First Midwest Bank |
| $350,000–1 million | CONDITIONED AIR DESIGN, INC. | WEST ALLIS, WI | First Midwest Bank |
| $150,000–350,000 | CONFERENCE TECHNOLOGY ENHANCEMENTS, INC. | PARK RIDGE, IL | First Midwest Bank |
| $150,000–350,000 | CONGREGATION BETH JUDEA | LONG GROVE, IL | First Midwest Bank |
| $150,000–350,000 | CONLON AND THOMPSON ORTHODONTICS | MCHENRY, IL | First Midwest Bank |
| $350,000–1 million | CONSULTANTS IN CARDIOLOGY AND ELECTROPHYSIOLOGY LLC | EVERGREEN PARK, IL | First Midwest Bank |
| $350,000–1 million | CONSULTING SOLUTIONS INC. | CHICAGO, IL | First Midwest Bank |
| $350,000–1 million | CONTRACTORS ACCESS EQUIPMENT INC | TAMPA, FL | First Midwest Bank |
| $150,000–350,000 | CONTRACTORS ACCESS EQUIPMENT INC | CHICAGO, IL | First Midwest Bank |
| $350,000–1 million | CONTRACTORS ACCESS EQUIPMENT INC | GRAND PRAIRIE, TX | First Midwest Bank |
| $1–2 million | CONTRACTORS ACCESS EQUIPMENT JACKSON INC | CHICAGO, IL | First Midwest Bank |
| $150,000–350,000 | CONTROL SALES, INC. | SCHAUMBURG, IL | First Midwest Bank |
| $150,000–350,000 | CONTROLLINK INC | ELGIN, IL | First Midwest Bank |
| $150,000–350,000 | CONVENTUAL FRANCISCAN FRIARS OF MARYTOWN | LIBERTYVILLE, IL | First Midwest Bank |
| $1–2 million | CORAL CHEMICAL COMPANY | ZION, IL | First Midwest Bank |
| $350,000–1 million | CORNERSTONE COMMUNITY OUTREACH | CHICAGO, IL | First Midwest Bank |
| $1–2 million | CORNERSTONE ONE, LLC | BROOKFIELD, WI | First Midwest Bank |