| $150,000–350,000 | KALAMAZOO MARKET I, INC. | KALAMAZOO, MI | Old National Bank |
| $150,000–350,000 | KALAMAZOO MARKET II, INC. | KALAMAZOO, MI | Old National Bank |
| $150,000–350,000 | KAMBIUM CAPITAL CORP. | LAKEVILLE, MN | Old National Bank |
| $150,000–350,000 | KAMBIUM CAPITAL CORP. | Lakeville, MN | Old National Bank |
| $150,000–350,000 | KAREN HRISOMALOS, D.D.S. & ELAINE COGHLAN, D.D.S., P.C. | BLOOMINGTON, IN | Old National Bank |
| $150,000–350,000 | KAREN HRISOMALOSDDS AND ELAINE COGHLAN DDS PC | Bloomington, IN | Old National Bank |
| $350,000–1 million | KBT ENTERPRISES, INC | FISHERS, IN | Old National Bank |
| $150,000–350,000 | KCD KC DISPOSAL | MINNEAPOLIS, MN | Old National Bank |
| $150,000–350,000 | KDAB, INC. | GRAND RAPIDS, MI | Old National Bank |
| $350,000–1 million | KEI ELECTRICAL CONSTRUCTION & MAINTENANCE, INC | KALAMAZOO, MI | Old National Bank |
| $350,000–1 million | KELLER DEVELOPMENT, INC. | FORT WAYNE, IN | Old National Bank |
| $2–5 million | KELLER SCHROEDER & ASSOCIATES, INC | EVANSVILLE, IN | Old National Bank |
| $150,000–350,000 | KELLER'S AUTOMOTIVE RUSTPROOFING SERVICE, INC. | BROWNSBURG, IN | Old National Bank |
| $2–5 million | KELLEY CONSTRUCTION INC | LOUISVILLE, KY | Old National Bank |
| $2–5 million | KELLEY CONSTRUCTION INC. | Louisville, KY | Old National Bank |
| $2–5 million | KELLINGTON CONSTRUCTION INC. | Minneapolis, MN | Old National Bank |
| $2–5 million | KELLINGTON CONSTRUCTION, INC. | MINNEAPOLIS, MN | Old National Bank |
| $150,000–350,000 | KEMPER CAPITAL MANAGEMENT LLC | ROBINSON, IL | Old National Bank |
| $5–10 million | KEMPER CPA GROUP, LLP | EVANSVILLE, IN | Old National Bank |
| $1–2 million | KEN NUNN LAW OFFICE P.C. | Bloomington, IN | Old National Bank |
| $350,000–1 million | KEN NUNN LAW OFFICE, PC. | BLOOMINGTON, IN | Old National Bank |
| $350,000–1 million | KENNEDY CARE ANN ARBOR LLC | ANN ARBOR, MI | Old National Bank |
| $350,000–1 million | KENT SCHOOL SERVICES NETWORK | Grand Rapids, MI | Old National Bank |
| $350,000–1 million | KENT SCHOOL SERVICES NETWORK | GRAND RAPIDS, MI | Old National Bank |
| $350,000–1 million | KERR-GREULICH MANAGEMENT, INC. | LOUISVILLE, KY | Old National Bank |
| $350,000–1 million | KESLER SCHAEFER AUTO AUCTION INC. | Indianapolis, IN | Old National Bank |
| $350,000–1 million | KESLER SCHAEFER AUTO AUCTION, INC | INDIANAPOLIS, IN | Old National Bank |
| $150,000–350,000 | KEVIN'S LANDSCAPING, INC | SALINE, MI | Old National Bank |
| $150,000–350,000 | KEY CONSTRUCTION CO. INC | Evansville, IN | Old National Bank |
| $350,000–1 million | KEY CONSTRUCTION CO. INC. | EVANSVILLE, IN | Old National Bank |
| $2–5 million | KEYSTAFF, INC. | PALM BEACH GARDENS, FL | Old National Bank |
| $350,000–1 million | KEYSTONE COMMUNITY SERVICES | SAINT PAUL, MN | Old National Bank |
| $350,000–1 million | KFI FURNITURE LLC | Louisville, KY | Old National Bank |
| $350,000–1 million | KFI FURNITURE, LLC | LOUISVILLE, KY | Old National Bank |
| $150,000–350,000 | KID TALK INC / BROADBAND AMERI | VICTORIA, MN | Old National Bank |
| $150,000–350,000 | KID TALK INC. | Victoria, MN | Old National Bank |
| $150,000–350,000 | KID'S HAVEN LLC | Buffalo, MN | Old National Bank |
| $350,000–1 million | KIDS HAVEN LLC | BUFFALO, MN | Old National Bank |
| $150,000–350,000 | KIEL NA LLC | ELKHART, IN | Old National Bank |
| $350,000–1 million | KINDEL FURNITURE COMPANY LLC | Grand Rapids, MI | Old National Bank |
| $350,000–1 million | KINDEL FURNITURE COMPANY LLC | GRAND RAPIDS, MI | Old National Bank |
| $350,000–1 million | KINETIC DATA, INC. | SAINT PAUL, MN | Old National Bank |
| $2–5 million | KING SOLUTIONS INC. | Maple Grove, MN | Old National Bank |
| $2–5 million | KING SOLUTIONS, INC. | OSSEO, MN | Old National Bank |
| $150,000–350,000 | KINNEY LIMITED, LLC | KALAMAZOO, MI | Old National Bank |
| $150,000–350,000 | KITCHENS ETC, INC | ELKHART, IN | Old National Bank |
| $150,000–350,000 | KJ WALK, INC | SAVAGE, MN | Old National Bank |
| $150,000–350,000 | KJELLBERG'S CARPET & INTERIORS INC. | BUFFALO, MN | Old National Bank |
| $350,000–1 million | KLAMM MECHANICAL CONTRACTORS INC. | Burnsville, MN | Old National Bank |
| $350,000–1 million | KLAMM MECHANICAL CONTRACTORS, INC. | BURNSVILLE, MN | Old National Bank |
| $350,000–1 million | KLOUDGAZE, INC. | MAPLE GROVE, MN | Old National Bank |
| $150,000–350,000 | KNECTIQ INC. | Saint Paul, MN | Old National Bank |
| $350,000–1 million | KNOX COUNTY EMS, INC. | VINCENNES, IN | Old National Bank |
| $1–2 million | KNU, LLC | FERDINAND, IN | Old National Bank |
| $350,000–1 million | KOBERSTEIN CONTRACTING INC | EVANSVILLE, IN | Old National Bank |
| $150,000–350,000 | KOBERSTEIN RENTAL & SALES INC | EVANSVILLE, IN | Old National Bank |
| $2–5 million | KOCH DEVELOPMENT CORPORATION | Santa Claus, IN | Old National Bank |
| $350,000–1 million | KOCH SCHOOL BUS SERVICE INC | Waconia, MN | Old National Bank |
| $350,000–1 million | KOCH SCHOOL BUS SERVICE, INC. | WACONIA, MN | Old National Bank |
| $150,000–350,000 | KOHLMEYER HAGEN, LAW OFFICE CHTD. | MANKATO, MN | Old National Bank |
| $350,000–1 million | KOPP CONCRETE INC. | BECKER, MN | Old National Bank |
| $350,000–1 million | KORTERRA, INC. | CHANHASSEN, MN | Old National Bank |
| $150,000–350,000 | KOSTERS AND DEVRIES, INC. | GRANDVILLE, MI | Old National Bank |
| $1–2 million | KREIS, ENDERLE, HUDGINS & BORSOS, P.C. | PORTAGE, MI | Old National Bank |
| $2–5 million | KRIEG DEVAULT, LLP | INDIANAPOLIS, IN | Old National Bank |
| $350,000–1 million | KRISTIAN ANDERSEN, INC. | INDIANAPOLIS, IN | Old National Bank |
| $150,000–350,000 | KRUEGER EXCAVATING INC | PRIOR LAKE, MN | Old National Bank |
| $350,000–1 million | KSU NA LLC | BELLWOOD, IL | Old National Bank |
| $150,000–350,000 | KSW ENTERPRISES, LLC | MINNEAPOLIS, MN | Old National Bank |
| $150,000–350,000 | KUHN AND SONS INC. | EVANSVILLE, IN | Old National Bank |
| $150,000–350,000 | KUSSKE CONSTRUCTION COMPANY LLC | CHASKA, MN | Old National Bank |
| $150,000–350,000 | KW SPECIALTY SERVICES LLC | Fridley, MN | Old National Bank |
| $150,000–350,000 | KW SPECIALTY SERVICES, LLC | MINNEAPOLIS, MN | Old National Bank |
| $350,000–1 million | L.L. PARKS LIVESTOCK INC. | Danville, IL | Old National Bank |
| $350,000–1 million | L.L. PARKS LIVESTOCK, INC. | DANVILLE, IL | Old National Bank |
| $350,000–1 million | L.O.F., INC. | ELKHART, IN | Old National Bank |
| $150,000–350,000 | LABORATORY STAFFING INC | MINNEAPOLIS, MN | Old National Bank |
| $150,000–350,000 | LABORE, GIULIANI, SHACKELFORD, KLEHR & JENSEN-LEA LTD | HOPKINS, MN | Old National Bank |
| $350,000–1 million | LAFAYETTE CLUB | Minnetonka Beach, MN | Old National Bank |
| $350,000–1 million | LAFAYETTE CLUB | MINNETONKA BEACH, MN | Old National Bank |
| $150,000–350,000 | LAFAYETTE CONSOLIDATED | Ann Arbor, MI | Old National Bank |
| $150,000–350,000 | LAFAYETTE CONSOLIDATED | ANN ARBOR, MI | Old National Bank |
| $350,000–1 million | LAFAYETTE INSTRUMENT COMPANY, INC | LAFAYETTE, IN | Old National Bank |
| $150,000–350,000 | LAFAYETTE SANI-WASH INC | LAFAYETTE, IN | Old National Bank |
| $150,000–350,000 | LAFAYETTE SUITES DEVELOPERS LP | Lafayette, IN | Old National Bank |
| $150,000–350,000 | LAFAYETTE SUITES DEVELOPERS, LP | LAFAYETTE, IN | Old National Bank |
| $150,000–350,000 | LAFITTE EXPLORATION, INC. | EVANSVILLE, IN | Old National Bank |
| $1–2 million | LAKE CHEVROLET INC. | MILWAUKEE, WI | Old National Bank |
| $150,000–350,000 | LAKE COUNTRY DISTRIBUTING INC. | Ypsilanti, MI | Old National Bank |
| $150,000–350,000 | LAKE COUNTRY DISTRIBUTING, INC. | YPSILANTI, MI | Old National Bank |
| $350,000–1 million | LAKE ENGINEERING INC. | Long Lake, MN | Old National Bank |
| $350,000–1 million | LAKE ENGINEERING, INC. | LONG LAKE, MN | Old National Bank |
| $350,000–1 million | LAKE FORD, INC | MILWAUKEE, WI | Old National Bank |
| $150,000–350,000 | LAKERS NEW PRAGUE SANITARY, INC | WEBSTER, MN | Old National Bank |
| $350,000–1 million | LAKESHORE ANESTHESIA, P. C. | VALPARAISO, IN | Old National Bank |
| $2–5 million | LAKEWINDS NATURAL FOODS COOPERATIVE | EDEN PRAIRIE, MN | Old National Bank |
| $150,000–350,000 | LANDSCAPE SOLUTIONS, L.L.C. | NOBLESVILLE, IN | Old National Bank |
| $150,000–350,000 | LAUCK MANUFACTURING CO INC. | INDIANAPOLIS, IN | Old National Bank |
| $350,000–1 million | LAW OFFICES DAVID L. CARRIER, P.C. | Grand Rapids, MI | Old National Bank |
| $350,000–1 million | LAW OFFICES DAVID L. CARRIER, P.C. | GRAND RAPIDS, MI | Old National Bank |