| $350,000–1 million | CHICAGO MAILING TUBE COMPANY | CHICAGO, IL | Fifth Third Bank |
| $2–5 million | CHICAGO MEAT AUTHORITY, INC. | CHICAGO, IL | Fifth Third Bank |
| $150,000–350,000 | CHICAGO OAKBROOK FINANCIAL GROUP | OAK BROOK, IL | Fifth Third Bank |
| $150,000–350,000 | CHICAGO OPERA THEATER | CHICAGO, IL | Fifth Third Bank |
| $350,000–1 million | CHICAGO PALLET SERVICE, INC. | ELK GROVE VILLAGE, IL | Fifth Third Bank |
| $150,000–350,000 | CHICAGO QUICK CLEAN LLC | BUFFALO GROVE, IL | Fifth Third Bank |
| $150,000–350,000 | CHICAGO READER L3C | CHICAGO, IL | Fifth Third Bank |
| $150,000–350,000 | CHICAGO SCAFFOLDING, INC. | CHICAGO, IL | Fifth Third Bank |
| $150,000–350,000 | CHICAGO SINFONIETTA INC | CHICAGO, IL | Fifth Third Bank |
| $350,000–1 million | CHICAGO STEEL CONTAINER CORPORATION | CHICAGO, IL | Fifth Third Bank |
| $350,000–1 million | CHICAGO TAG & LABEL, INC. | LIBERTYVILLE, IL | Fifth Third Bank |
| $350,000–1 million | CHICAGO VOICE AND DATA AUTHORITY CORP. | CHICAGO, IL | Fifth Third Bank |
| $350,000–1 million | CHICAGO WICKER & TRADING COMPANY | ALSIP, IL | Fifth Third Bank |
| $150,000–350,000 | CHICAGOAN LOGISTIC COMPANY | CHICAGO, IL | Fifth Third Bank |
| $150,000–350,000 | CHICAGOLAMP BUILDERS INC | GLENDALE HEIGHTS, IL | Fifth Third Bank |
| $350,000–1 million | CHICAGOLAND BEVERAGE COMPANY | CHICAGO, IL | Fifth Third Bank |
| $1–2 million | CHICAGOLAND PAVING CONTRACTORS, INC. | LAKE ZURICH, IL | Fifth Third Bank |
| $150,000–350,000 | CHICKEN SHACK, INC. | ROYAL OAK, MI | Fifth Third Bank |
| $150,000–350,000 | CHILD AND ADOLESCENT CENTER, P.C. | SOUTHGATE, MI | Fifth Third Bank |
| $350,000–1 million | CHILD AND ADOLESCENT HEALTH ASSOCIATES, LTD. | CHICAGO, IL | Fifth Third Bank |
| $150,000–350,000 | CHILDREN'S CENTER, INCORPORATED | CHICAGO, IL | Fifth Third Bank |
| $1–2 million | CHILDREN'S HOME OF PITTSBURGH | PITTSBURGH, PA | Fifth Third Bank |
| $350,000–1 million | CHILDREN'S MUSEUM OF TAMPA INC | TAMPA, FL | Fifth Third Bank |
| $350,000–1 million | CHILDRENS THERAPY SOLUTIONS INC | BRADENDON, FL | Fifth Third Bank |
| $1–2 million | CHINN ENTERPRISES, INC. | WHEELING, IL | Fifth Third Bank |
| $1–2 million | CHISHOLM LUMBER & SUPPLY CO INC | INDIANAPOLIS, IN | Fifth Third Bank |
| $150,000–350,000 | CHITOWN FUTBOL & SOCIAL LLC | CHICAGO, IL | Fifth Third Bank |
| $2–5 million | CHIYODA USA | GREENCASTLE, IN | Fifth Third Bank |
| $150,000–350,000 | CHOI BRANDS INC. | CHICAGO, IL | Fifth Third Bank |
| $350,000–1 million | CHRIST THE KING CATHOLIC CHURCH, INDIANAPOLIS, INC. | INDIANAPOLIS, IN | Fifth Third Bank |
| $2–5 million | CHRISTEL HOUSE ACADEMY, INC. | INDIANAPOLIS, IN | Fifth Third Bank |
| $350,000–1 million | CHRISTIAN BROTHERS, INC. | CUMMING, GA | Fifth Third Bank |
| $1–2 million | CHRISTIAN COMMUNITY HEALTH CENTER, INC. | CHICAGO, IL | Fifth Third Bank |
| $350,000–1 million | CHRISTIAN COMMUNITY HEALTH SERVICES | CINCINNATI, OH | Fifth Third Bank |
| $350,000–1 million | CHRISTOPHER BRYAN COMPANY, INC. | CHARLOTTE, NC | Fifth Third Bank |
| $1–2 million | CHRONOS IMAGING LLC | AURORA, IL | Fifth Third Bank |
| $1–2 million | CHT USA INC | CASSOPOLIS, MI | Fifth Third Bank |
| $150,000–350,000 | CHUCK A. TAYLOR, LLC | FORT MYERS, FL | Fifth Third Bank |
| $150,000–350,000 | CHURCH ACCOUNTING SERVICES LLC | NOBLESVILLE, IN | Fifth Third Bank |
| $150,000–350,000 | CHURCH AND CHAPEL METAL ARTS, INC. | CHICAGO, IL | Fifth Third Bank |
| $150,000–350,000 | CHURCH OF ANNUNCIATION BVM | CINCINNATI, OH | Fifth Third Bank |
| $150,000–350,000 | CHURCH OF THE ASCENSION | DAYTON, OH | Fifth Third Bank |
| $350,000–1 million | CHURCH OF THE HOLY ANGELS | DAYTON, OH | Fifth Third Bank |
| $350,000–1 million | CHURCH OF THE INCARNATION | CENTERVILLE, OH | Fifth Third Bank |
| $150,000–350,000 | CHURCHILL CABINET COMPANY | CICERO, IL | Fifth Third Bank |
| $150,000–350,000 | CI GUIDE, LLC | NASHVILLE, TN | Fifth Third Bank |
| $2–5 million | CI² AVIATION INC. | ATLANTA, GA | Fifth Third Bank |
| $150,000–350,000 | CICERO PLASTIC PRODUCTS, INC. | ROMEOVILLE, IL | Fifth Third Bank |
| $150,000–350,000 | CICERO'S DEVELOPMENT, INC. | PLAINFIELD, IL | Fifth Third Bank |
| $2–5 million | CINCINNAT ARTS ASSOCIATION | CINCINNATI, OH | Fifth Third Bank |
| $150,000–350,000 | CINCINNATI AIR FILTER SALES & SERVICE, INC | CINCINNATI, OH | Fifth Third Bank |
| $150,000–350,000 | CINCINNATI CATHOLIC CEMETERY SOCIETY | CINCINNATI, OH | Fifth Third Bank |
| $150,000–350,000 | CINCINNATI CHEESESTEAKS, INC | CINCINNATI, OH | Fifth Third Bank |
| $2–5 million | CINCINNATI HILLS CHRISTIAN ACADEMY | CINCINNATI, OH | Fifth Third Bank |
| $1–2 million | CINCINNATI IMAGING LEASING COMPANY LTD | CINCINNATI, OH | Fifth Third Bank |
| $150,000–350,000 | CINCINNATI INSTITUTE OF FINE ARTS | CINCINNATI, OH | Fifth Third Bank |
| $150,000–350,000 | CINCINNATI OCCUPATIONAL THERAPY INSTITUTE FOR SERVICE AND STUDY INC | CINCINNATI, OH | Fifth Third Bank |
| $150,000–350,000 | CINCINNATI PROCESS TECHNOLOGIES, LLC | CINCINNATI, OH | Fifth Third Bank |
| $150,000–350,000 | CINCINNATI RADIATOR, INC | HAMILTON, OH | Fifth Third Bank |
| $150,000–350,000 | CINCINNATI SERVICE AND REBUILDERS, INC | CINCINNATI, OH | Fifth Third Bank |
| $350,000–1 million | CINDUS CORPORATION | CINCINNATI, OH | Fifth Third Bank |
| $1–2 million | CINNAIRE CORPORATION | LANSING, MI | Fifth Third Bank |
| $350,000–1 million | CINTECH CONSTRUCTION, INC | CINCINNATI, OH | Fifth Third Bank |
| $2–5 million | CIRCLE B CONSTRUCTION SYSTEMS, LLC | INDIANAPOLIS, IN | Fifth Third Bank |
| $150,000–350,000 | CIRCLE URBAN MINISTRIES | CHICAGO, IL | Fifth Third Bank |
| $150,000–350,000 | CIRCOM, INC. | BENSENVILLE, IL | Fifth Third Bank |
| $150,000–350,000 | CIRCULATORY ASSIST SERVICES, INCORPORATED | SYLVANIA, OH | Fifth Third Bank |
| $350,000–1 million | CITY ARCHITECTURE, INC. | CLEVELAND, OH | Fifth Third Bank |
| $350,000–1 million | CITY HAUL, INC. | CHICAGO, IL | Fifth Third Bank |
| $150,000–350,000 | CITY STUDIOS ARCHITECTURE, LLC | CINCINNATI, OH | Fifth Third Bank |
| $150,000–350,000 | CITYWIDE MATERIALS, INC | CINCINNATI, OH | Fifth Third Bank |
| $150,000–350,000 | CITYWIDE MOVING SYSTEMS, INC. | MONROE, NC | Fifth Third Bank |
| $1–2 million | CJBS, LLC | NORTHBROOK, IL | Fifth Third Bank |
| $350,000–1 million | CJK FOODS, LLC | CHICAGO, IL | Fifth Third Bank |
| $150,000–350,000 | CJM HOLDING LLC | ROYAL OAK, MI | Fifth Third Bank |
| $1–2 million | CKGP/PW & ASSOCIATES, INC. | TROY, MI | Fifth Third Bank |
| $350,000–1 million | CKM ENTERPRISES, LLC | NOBLESVILLE, IN | Fifth Third Bank |
| $150,000–350,000 | CKS SOLUTION, INC. | FAIRFIELD, OH | Fifth Third Bank |
| $150,000–350,000 | CLAAD MECHANICAL LLC | BROADVIEW HEIGHTS, OH | Fifth Third Bank |
| $150,000–350,000 | CLAM-TORCH RMPL, INC. | WILLIAMSBURG, MI | Fifth Third Bank |
| $150,000–350,000 | CLARETIAN ASSOCIATES INC | CHICAGO, IL | Fifth Third Bank |
| $1–2 million | CLARETIAN MISSIONARIES SERVICE CORPORATION | CHICAGO, IL | Fifth Third Bank |
| $150,000–350,000 | CLARITY CARE GIVERS, LLC | FISHERS, IN | Fifth Third Bank |
| $150,000–350,000 | CLARK ENGINEERING CO. | OWOSSO, MI | Fifth Third Bank |
| $150,000–350,000 | CLARK WIRE & CABLE CO., INC. | MUNDELEIN, IL | Fifth Third Bank |
| $350,000–1 million | CLARKE CONSTRUCTION GROUP, INC. | FORT MYERS, FL | Fifth Third Bank |
| $350,000–1 million | CLARKE CONTRACTORS, INC | WEST CHESTER, OH | Fifth Third Bank |
| $1–2 million | CLASSIC CARE HEALTH SERVICES, INC. | OLYMPIA FIELDS, IL | Fifth Third Bank |
| $150,000–350,000 | CLASSIC EQUIPMENT SERVICES, INC. | DANBURY, CT | Fifth Third Bank |
| $150,000–350,000 | CLASSIC INTERIORS COMPLETIONS, INC | WILLOUGHBY, OH | Fifth Third Bank |
| $350,000–1 million | CLASSIC PRODUCTS, INC. | MCHENRY, IL | Fifth Third Bank |
| $150,000–350,000 | CLASSIC RESURRECTION, LLC | GROVE CITY, OH | Fifth Third Bank |
| $150,000–350,000 | CLAY PRIMARY & FAMILY CARE, LLC | ORANGE PARK, FL | Fifth Third Bank |
| $150,000–350,000 | CLEANING CONTRACTORS INC. | TAYLOR, MI | Fifth Third Bank |
| $150,000–350,000 | CLEANROOM DESIGN, INC | TAMPA, FL | Fifth Third Bank |
| $150,000–350,000 | CLEARLOGIC CORPORATION | DAYTON, OH | Fifth Third Bank |
| $150,000–350,000 | CLEARVIEW HOMES, LLC | ROCHESTER HILLS, MI | Fifth Third Bank |
| $1–2 million | CLEARWATER SERVICES INCORPORATED | AKRON, OH | Fifth Third Bank |
| $150,000–350,000 | CLERMONT CHILI COMPANY, INC | CINCINNATI, OH | Fifth Third Bank |
| $150,000–350,000 | CLERMONT PARTNERS, LLC | CHICAGO, IL | Fifth Third Bank |