| $350,000–1 million | KENT MANUFACTURING COMPANY | GRAND RAPIDS, MI | Fifth Third Bank |
| $150,000–350,000 | KENT PEDIATRICS PC | Comstock Park, MI | Fifth Third Bank |
| $150,000–350,000 | KENT PEDIATRICS, P.C. | COMSTOCK PARK, MI | Fifth Third Bank |
| $150,000–350,000 | KENTEX CORP | COLUMBUS, OH | Fifth Third Bank |
| $150,000–350,000 | KENTEX CORP | Columbus, OH | Fifth Third Bank |
| $1–2 million | KENTUCKIANA COMFORT CENTER, INC. | Louisville, KY | Fifth Third Bank |
| $5–10 million | KENTUCKIANA CURB COMPANY, INC. | Louisville, KY | Fifth Third Bank |
| $150,000–350,000 | KENTUCKY MACHINE & TOOL COMPANY | LOUISVILLE, KY | Fifth Third Bank |
| $150,000–350,000 | KENTUCKY MACHINERY COMPANY LLC | Richmond, KY | Fifth Third Bank |
| $150,000–350,000 | KENTUCKY MACHINERY COMPANY, LLC | RICHMOND, KY | Fifth Third Bank |
| $150,000–350,000 | KENTUCKY OPERA ASSOCIATION | LOUISVILLE, KY | Fifth Third Bank |
| $150,000–350,000 | KENTUCKY PSYCHIATRIC AND MENTAL HEALTH SERVICES, PLLC | LOUISVILLE, KY | Fifth Third Bank |
| $350,000–1 million | KENTUCKY RIVER PROPERTIES LLC | LEXINGTON, KY | Fifth Third Bank |
| $350,000–1 million | KENTWOOD EXCAVATING INC. | GRAND RAPIDS, MI | Fifth Third Bank |
| $350,000–1 million | KENTWOOD EXCAVATING, INC. | GRAND RAPIDS, MI | Fifth Third Bank |
| $150,000–350,000 | KENWEL PRINTERS INC | Columbus, OH | Fifth Third Bank |
| $150,000–350,000 | KENWEL PRINTERS, INC | COLUMBUS, OH | Fifth Third Bank |
| $350,000–1 million | KENWOOD BISTRO GROUP INC | Cincinnati, OH | Fifth Third Bank |
| $350,000–1 million | KENWOOD BISTRO GROUP, INC | CINCINNATI, OH | Fifth Third Bank |
| $350,000–1 million | KERR LAKESIDE INC | Euclid, OH | Fifth Third Bank |
| $350,000–1 million | KERR LAKESIDE INC. | Euclid, OH | Fifth Third Bank |
| $350,000–1 million | KESSLER CREATIVE LLC | Jacksonville, FL | Fifth Third Bank |
| $350,000–1 million | KESSLER CREATIVE, LLC | JACKSONVILLE, FL | Fifth Third Bank |
| $150,000–350,000 | KESWICK ENTERPRISES, INC | GROVE CITY, OH | Fifth Third Bank |
| $150,000–350,000 | KEVIN PATTERSON INDUSTRIES LLC | SABINA, OH | Fifth Third Bank |
| $150,000–350,000 | KEVIN PATTERSON INDUSTRIES LLC | Sabina, OH | Fifth Third Bank |
| $150,000–350,000 | KEY POINTE MEDICAL WEIGHT LOSS & WELLNESS CENTER LLC | CINCINNATI, OH | Fifth Third Bank |
| $150,000–350,000 | KEYSTONE ENGINEERING & MANUFACTURING CORPORATION | AVON, IN | Fifth Third Bank |
| $150,000–350,000 | KEYSTONE VETERINARY CLINIC, INC | STOW, OH | Fifth Third Bank |
| $150,000–350,000 | KGH LLC | CUYAHOGA FALLS, OH | Fifth Third Bank |
| $150,000–350,000 | KGH LLC | Cuyahoga Falls, OH | Fifth Third Bank |
| $350,000–1 million | KHM CONSULTING INC | BRUNSWICK, OH | Fifth Third Bank |
| $350,000–1 million | KHM CONSULTING INC | Brunswick, OH | Fifth Third Bank |
| $350,000–1 million | KICKR DESIGN LLC | ATLANTA, GA | Fifth Third Bank |
| $150,000–350,000 | KIDCO INC | Vernon Hills, IL | Fifth Third Bank |
| $150,000–350,000 | KIDCO INC. | Libertyville, IL | Fifth Third Bank |
| $150,000–350,000 | KIDQUEST INC | MT CLEMENS, MI | Fifth Third Bank |
| $350,000–1 million | KIDS IN MOTION PEDIATRIC THERAPY SERVICES LTD. | HIGHLAND, MI | Fifth Third Bank |
| $350,000–1 million | KIDS' CHOICE PEDIATRIC REHAB & THERAPY CENTER, LLC | BOARDMAN, OH | Fifth Third Bank |
| $150,000–350,000 | KIDS' CHOICE PEDIATRIC REHAB & THERAPY CENTER, LLC | Boardman, OH | Fifth Third Bank |
| $150,000–350,000 | KIDSVILLE PEDIATRICS I P.A. | Davenport, FL | Fifth Third Bank |
| $150,000–350,000 | KIDSVILLE PEDIATRICS I PA | DAVENPORT, FL | Fifth Third Bank |
| $150,000–350,000 | KIEF'S REEF INC. | McHenry, IL | Fifth Third Bank |
| $350,000–1 million | KIESLER POLICE SUPPLY INC | Jeffersonville, IN | Fifth Third Bank |
| $350,000–1 million | KIFFER INDUSTRIES INC. | Cleveland, OH | Fifth Third Bank |
| $350,000–1 million | KIFFER INDUSTRIES, INC. | CLEVELAND, OH | Fifth Third Bank |
| $150,000–350,000 | KIKER PLUMBING SERVICE, INC. | MONROE, NC | Fifth Third Bank |
| $150,000–350,000 | KIMCO DISTRIBUTING CORPORATION OF OHIO | MENTOR, OH | Fifth Third Bank |
| $1–2 million | KING & UNION MEMPHIS ACQUISITIONS LLC | Columbus, OH | Fifth Third Bank |
| $150,000–350,000 | KING CONCRETE, INC | COLUMBUS, OH | Fifth Third Bank |
| $150,000–350,000 | KING DOUGH II LLC | Indianapolis, IN | Fifth Third Bank |
| $150,000–350,000 | KING DOUGH, LLC | BLOOMINGTON, IN | Fifth Third Bank |
| $350,000–1 million | KING LIGHTING, INC | FLORENCE, KY | Fifth Third Bank |
| $350,000–1 million | KING MILLING COMPANY | LOWELL, MI | Fifth Third Bank |
| $1–2 million | KING OCEAN AGENCY INC | Doral, FL | Fifth Third Bank |
| $1–2 million | KING OCEAN AGENCY INC | MIAMI, FL | Fifth Third Bank |
| $350,000–1 million | KING UNION MEMPHIS ACQUISITIONS LLC | Columbus, OH | Fifth Third Bank |
| $350,000–1 million | KING'S LANDSCAPING CO. | LEMONT, IL | Fifth Third Bank |
| $150,000–350,000 | KINGDOM CONSTRUCTION INC. | TAYLOR, MI | Fifth Third Bank |
| $150,000–350,000 | KINGDOM CONSTRUCTION INC. | Plymouth, MI | Fifth Third Bank |
| $1–2 million | KINSALE CONTRACTING GROUP INC | Westmont, IL | Fifth Third Bank |
| $1–2 million | KINSALE CONTRACTING GROUP, INC. | WESTMONT, IL | Fifth Third Bank |
| $150,000–350,000 | KINZIE INDUSTRIAL DEVELOPMENT CORP | CHICAGO, IL | Fifth Third Bank |
| $150,000–350,000 | KIPER HIBBARD LLC | LOUISVILLE, KY | Fifth Third Bank |
| $2–5 million | KIRBY SERVICES LLC | Troy, MI | Fifth Third Bank |
| $2–5 million | KIRBY SERVICES, LLC | TROY, MI | Fifth Third Bank |
| $1–2 million | KIRKPATRICK MANAGEMENT CO., INC. | INDIANAPOLIS, IN | Fifth Third Bank |
| $350,000–1 million | KISLING NESTICO & REDICK, LLC | WADSWORTH, OH | Fifth Third Bank |
| $150,000–350,000 | KITTYHAWK MOLDING COMPANY, INC | CARLISLE, OH | Fifth Third Bank |
| $350,000–1 million | KLAUSING GROUP INC. | Lexington, KY | Fifth Third Bank |
| $350,000–1 million | KLAUSING GROUP, INC. | LEXINGTON, KY | Fifth Third Bank |
| $150,000–350,000 | KLB INDUSTRIES, INC | BELLEFONTAINE, OH | Fifth Third Bank |
| $1–2 million | KLEAN KANTEEN INC. | Chico, CA | Fifth Third Bank |
| $1–2 million | KLEAN KANTEEN, INC. | CHICO, CA | Fifth Third Bank |
| $350,000–1 million | KLEEN AIR CORPORATION | CHICAGO, IL | Fifth Third Bank |
| $350,000–1 million | KLEEN AIR SERVICE CORPORATION | Chicago, IL | Fifth Third Bank |
| $150,000–350,000 | KLEEN-TEX INDUSTRIES, INC. | Atlanta, GA | Fifth Third Bank |
| $350,000–1 million | KLEINERT KUTZ AND ASSOCIATES HAND CARE CENTER PLLC | Louisville, KY | Fifth Third Bank |
| $150,000–350,000 | KLEINERT KUTZ SURGERY CENTER LLC | New Albany, IN | Fifth Third Bank |
| $150,000–350,000 | KLEINERT KUTZ SURGERY CENTER, LLC | NEW ALBANY, IN | Fifth Third Bank |
| $350,000–1 million | KLEINERT, KUTZ AND ASSOCIATES HAND CARE CENTER, PLLC | LOUISVILLE, KY | Fifth Third Bank |
| $150,000–350,000 | KLEK INDUSTRIES, INC | KETTERING, OH | Fifth Third Bank |
| $150,000–350,000 | KLI SHELL LUMBER & HARDWARE, LLC | KEY LARGO, FL | Fifth Third Bank |
| $350,000–1 million | KMC ENTERPRISES | SOUTH HAVEN, MI | Fifth Third Bank |
| $150,000–350,000 | KMGRAFX, INC | LOVELAND, OH | Fifth Third Bank |
| $350,000–1 million | KNIGHT, HOPPE, KURNIK & KNIGHT, LTD. | ROSEMONT, IL | Fifth Third Bank |
| $150,000–350,000 | KNIGHTHORST SHREDDING, LLC | NASHVILLE, TN | Fifth Third Bank |
| $350,000–1 million | KNIGHTHOUSE MEDIA INC. | CHICAGO, IL | Fifth Third Bank |
| $150,000–350,000 | KNOLL AMERICA INC. | MADISON HEIGHTS, MI | Fifth Third Bank |
| $350,000–1 million | KNOTT EBELINI HART & HAAK P.A. | Fort Myers, FL | Fifth Third Bank |
| $350,000–1 million | KNOTT, EBELINI, HART & HAAK, P.A. | FORT MYERS, FL | Fifth Third Bank |
| $1–2 million | KNR CONSULTING CORP | FAIRLAWN, OH | Fifth Third Bank |
| $2–5 million | KOERNER DISTRIBUTOR, INC. | EFFINGHAM, IL | Fifth Third Bank |
| $150,000–350,000 | KOLOR PATCH, INC. | GILBERTS, IL | Fifth Third Bank |
| $150,000–350,000 | KONSTANT ARCHITECTURE PLANNING, INC. | SKOKIE, IL | Fifth Third Bank |
| $150,000–350,000 | KOO LLC | CHICAGO, IL | Fifth Third Bank |
| $150,000–350,000 | KOO LLC | Chicago, IL | Fifth Third Bank |
| $2–5 million | KOOPS INCORPORATED | HOLLAND, MI | Fifth Third Bank |
| $350,000–1 million | KORE 4, LLC | SAINT CHARLES, IL | Fifth Third Bank |
| $150,000–350,000 | KORENERGY, LTD | GALENA, OH | Fifth Third Bank |