| $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 | 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 |
| $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 | KERR-GREULICH MANAGEMENT, INC. | LOUISVILLE, KY | Old National Bank |
| $150,000–350,000 | KEVIN'S LANDSCAPING, INC | SALINE, MI | 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 |
| $150,000–350,000 | KID TALK INC / BROADBAND AMERI | VICTORIA, 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 | KINETIC DATA, INC. | SAINT PAUL, 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 |
| $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 |
| $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 | MINNEAPOLIS, MN | 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 |
| $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 | 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 |
| $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 | INDIANAPOLIS, IN | Old National Bank |
| $350,000–1 million | LAW OFFICES OF DAVID L. CARRIER, P.C. | GRAND RAPIDS, MI | Old National Bank |
| $350,000–1 million | LBK, LTD | PLAINWELL, MI | Old National Bank |
| $150,000–350,000 | LCS PRECISION MOLDING, INC. | WATERVILLE, MN | Old National Bank |
| $350,000–1 million | LEE EQUIPMENT COMPANY, INC. | TERRE HAUTE, IN | Old National Bank |
| $350,000–1 million | LEELANAU WINE CELLARS, LTD. | ANN ARBOR, MI | Old National Bank |
| $350,000–1 million | LEGACY ERECTORS LLC | INDIANAPOLIS, IN | Old National Bank |
| $150,000–350,000 | LEGACY LIVING OF JASPER LLC | JASPER, IN | Old National Bank |
| $1–2 million | LEGEND MECHANICAL, INC. | SAVAGE, MN | Old National Bank |
| $150,000–350,000 | LENCO PAINTING, INC | ADRIAN, MI | Old National Bank |
| $2–5 million | LENEX STEEL COMPANY | INDIANAPOLIS, IN | Old National Bank |
| $1–2 million | LENSING WHOLESALE INC | EVANSVILLE, IN | Old National Bank |
| $350,000–1 million | LENZEN CHEVROLET BUICK INC. | CHASKA, MN | Old National Bank |
| $150,000–350,000 | LEONARD J. BARTOSZEWICZ DDS | GRAND RAPIDS, MI | Old National Bank |
| $2–5 million | LESSORS TRUCKING INC | SAINT PAUL, MN | Old National Bank |
| $150,000–350,000 | LFR OF MADISON COUNTY, INC | ANDERSON, IN | Old National Bank |
| $150,000–350,000 | LIBERTY AUTO SALVAGE, INC | EVANSVILLE, IN | Old National Bank |
| $350,000–1 million | LIBERTY MANUFACTURING COMPANY | PORTAGE, MI | Old National Bank |
| $150,000–350,000 | LIFE TREATMENT CENTERS INC | SOUTH BEND, IN | Old National Bank |
| $150,000–350,000 | LIFE'S TOUCH HOME HEALTH | INDIANAPOLIS, IN | Old National Bank |
| $150,000–350,000 | LIGHTHOUSE CHRISTIAN ACADEMY INC | BLOOMINGTON, IN | Old National Bank |
| $150,000–350,000 | LIGHTHOUSE PSYCHOLOGICAL SERVICES, INC. | MINNEAPOLIS, MN | Old National Bank |
| $150,000–350,000 | LIGHTNING DISPOSAL INC. | INVER GROVE HEIGHTS, MN | Old National Bank |
| $150,000–350,000 | LINDER OIL CO., INC. A/K/A LINDER OIL COMPANY, INC. | OSSIAN, IN | Old National Bank |
| $150,000–350,000 | LINEN EFFECTS INC | MINNEAPOLIS, MN | Old National Bank |
| $150,000–350,000 | LIONS TAP INC | EDEN PRAIRIE, MN | Old National Bank |
| $150,000–350,000 | LIQUID ASSET PARTNERS LLC | GRAND RAPIDS, MI | Old National Bank |
| $350,000–1 million | LITINPAK, INC | ANDOVER, MN | Old National Bank |
| $150,000–350,000 | LITTLE SPROUTS CHILDCARE AND PRESCHOOL INC. | WOODBURY, MN | Old National Bank |
| $150,000–350,000 | LIVE OAK LLC | YPSILANTI, MI | Old National Bank |
| $150,000–350,000 | LIVING CHRIST LUTHERAN CHURCH | CHANHASSEN, MN | Old National Bank |
| $150,000–350,000 | LIVINGSTON ENGINEERING, LC | BRIGHTON, MI | Old National Bank |
| $150,000–350,000 | LLD, INC | CRESTWOOD, KY | Old National Bank |
| $150,000–350,000 | LLOYD'S ICE CREAM, INC. | EVANSVILLE, IN | Old National Bank |
| $150,000–350,000 | LM PRODUCTS, INC | ANDERSON, IN | Old National Bank |
| $350,000–1 million | LOCKMASTERS, INC. | NICHOLASVILLE, KY | Old National Bank |
| $150,000–350,000 | LOGISTICS SERVICES, INC. | EAGAN, MN | Old National Bank |
| $350,000–1 million | LONSDALE PACKAGING INC | LONSDALE, MN | Old National Bank |