| $150,000–350,000 | MUGSY'S PUB, INC. | BLOOMINGTON, IL | Busey Bank |
| $150,000–350,000 | MURPHY CONSTRUCTION SERV LLC - MAD4556 | Burr Ridge, IL | Busey Bank |
| $1–2 million | MURPHY PAVING AND SEALCOATING - MAD4779 | Burr Ridge, IL | Busey Bank |
| $1–2 million | MURPHY PAVING AND SEALCOATING, INC. | LEMONT, IL | Busey Bank |
| $350,000–1 million | NAPERVILLE MARKET, INC. | NAPERVILLE, IL | Busey Bank |
| $350,000–1 million | NAPERVILLE MEAT MARKET, INC | NAPERVILLE, IL | Busey Bank |
| $350,000–1 million | NARVICK BROTHERS LUMBER CO., INC. | MORRIS, IL | Busey Bank |
| $350,000–1 million | NASAW DOUGLASS AND ASSOCIATES - NAA2634 | Burr Ridge, IL | Busey Bank |
| $350,000–1 million | NASAW/DOUGLAS AND ASSOCIATES LTD. | Burr Ridge, IL | Busey Bank |
| $150,000–350,000 | NATHANI ELITE MANAGEMENT NETWORK INC - NAA7993 | Glenview, IL | Busey Bank |
| $150,000–350,000 | NATHANI ELITE MANAGEMENT NETWORK, INC | GLENVIEW, IL | Busey Bank |
| $350,000–1 million | NATIONAL COUNCIL OF TEACHERS - NAA2815 | Champaign, IL | Busey Bank |
| $350,000–1 million | NATIONAL COUNCIL OF TEACHERS OF ENGLISH | CHAMPAIGN, IL | Busey Bank |
| $1–2 million | NATIONAL DESIGN BUILD SERVICES LLC | SAINT LOUIS, MO | Busey Bank |
| $1–2 million | NATIONAL DESIGN BUILD SVCS - NAA2817 | Saint Louis, MO | Busey Bank |
| $1–2 million | NATIONAL HOSPICE MANAGEMENT INC | SAINT LOUIS, MO | Busey Bank |
| $350,000–1 million | NATIONAL SALES COMPANY | SAINT LOUIS, MO | Busey Bank |
| $150,000–350,000 | NATURE'S BLUEPRINT OF SOUTHWEST FLORIDA, LLC | FORT MYERS, FL | Busey Bank |
| $350,000–1 million | NEAL AUTO PARTS, INC | PEORIA, IL | Busey Bank |
| $150,000–350,000 | NEATO AGENCY LLC - NAA7983 | Chicago, IL | Busey Bank |
| $150,000–350,000 | NEATO AGENCY, LLC | CHICAGO, IL | Busey Bank |
| $150,000–350,000 | NEIGHBORHOOD HOUSE ASSOCIATION | PEORIA, IL | Busey Bank |
| $150,000–350,000 | NENNINGER FOODS, LLC | SAINT LOUIS, MO | Busey Bank |
| $350,000–1 million | NETCOM INC - NAA4155 | Wheeling, IL | Busey Bank |
| $350,000–1 million | NETCOM, INC | WHEELING, IL | Busey Bank |
| $150,000–350,000 | NETWORK PERCEPTION INC | CHICAGO, IL | Busey Bank |
| $2–5 million | NEUMAYER EQUIPMENT COMPANY | SAINT LOUIS, MO | Busey Bank |
| $2–5 million | NEUMAYER EQUIPMENT COMPANY INC - NAA4334 | Saint Louis, MO | Busey Bank |
| $350,000–1 million | NEVERMAN FLOOR ARTISANS INC - NAA4379 | TOLONO, IL | Busey Bank |
| $150,000–350,000 | NEVERMAN FLOOR ARTISANS, INC. | CHAMPAIGN, IL | Busey Bank |
| $150,000–350,000 | NEW CENTURY ARMORED LOGISTICS LLC | HAZELWOOD, MO | Busey Bank |
| $150,000–350,000 | NEW PRAIRIE CONSTRUCTION COMPANY | URBANA, IL | Busey Bank |
| $150,000–350,000 | NEW PRAIRIE CONSTRUCTION COMPANY - NAA4495 | Urbana, IL | Busey Bank |
| $1–2 million | NEW S.B.L. INC. | CHICAGO, IL | Busey Bank |
| $1–2 million | NEW SBL INC - NAA4498 | Chicago, IL | Busey Bank |
| $1–2 million | NEWCO ENTERPRISES INC - NAA7761 | Saint Charles, MO | Busey Bank |
| $2–5 million | NEWCO ENTERPRISES, INC. | SAINT CHARLES, MO | Busey Bank |
| $150,000–350,000 | NEWMAN ARCHITECTURE INC - NAA4708 | Naperville, IL | Busey Bank |
| $150,000–350,000 | NEWMAN ARCHITECTURE, INC. | NAPERVILLE, IL | Busey Bank |
| $1–2 million | NEWMAN CARRIERS INC. | Fairmont City, IL | Busey Bank |
| $150,000–350,000 | NEWTEC WINDOW & DOOR INC | CHICAGO, IL | Busey Bank |
| $150,000–350,000 | NEWTEC WINDOW & DOOR INC - NAA4860 | Chicago, IL | Busey Bank |
| $150,000–350,000 | NICHOLS VETERINARY SERVICES, P.C. | WASHINGTON, IL | Busey Bank |
| $2–5 million | NOBLE HEALTH AUDRAIN INC | Kansas City, MO | Busey Bank |
| $350,000–1 million | NOEL PAINTING OF THE USA LLC - NAA8311 | Fort Myers, FL | Busey Bank |
| $150,000–350,000 | NORATEL POWER ENGINEERING LLC | Carson, CA | Busey Bank |
| $350,000–1 million | NORMAL BLOOMINGTON ANESTHESIOLOGISTS, LTD | NAPERVILLE, IL | Busey Bank |
| $350,000–1 million | NORTH PORT RETIREMENT CENTER INC. | NORTH PORT, FL | Busey Bank |
| $350,000–1 million | NORTH PORT RETIREMENT CNTR INC - NAA6930 | North Port, FL | Busey Bank |
| $1–2 million | NORTH SHORE COMPANIONS, INC. | NORTHBROOK, IL | Busey Bank |
| $150,000–350,000 | NORTH STATES STEEL CORP. | HEBRON, IL | Busey Bank |
| $150,000–350,000 | NORTHCENTER LIGHTHOUSE LLC | CHICAGO, IL | Busey Bank |
| $150,000–350,000 | NORTHCENTER LIGHTHOUSE LLC - NAA6961 | Deerfield, IL | Busey Bank |
| $150,000–350,000 | NORTHEAST NEPHROLOGY CONSULTANTS, LTD. | JOLIET, IL | Busey Bank |
| $2–5 million | NORTHWEST ONCOLOGY & HEMATOLOGY, S. C. | ROLLING MEADOWS, IL | Busey Bank |
| $1–2 million | NOTRE DAME HIGH SCHOOL OF PEORIA, INC. | PEORIA, IL | Busey Bank |
| $150,000–350,000 | NPN ENVIRONMENTAL ENGINEERS - NAA7357 | Fenton, MO | Busey Bank |
| $150,000–350,000 | NPN ENVIRONMENTAL ENGINEERS, INC | FENTON, MO | Busey Bank |
| $5–10 million | NRRM, LLC | SAINT PETERS, MO | Busey Bank |
| $350,000–1 million | NUTRACOM LLC | CHESTERFIELD, MO | Busey Bank |
| $150,000–350,000 | O & O HOSPITALITY, LLC | SAINT LOUIS, MO | Busey Bank |
| $1–2 million | O'TECH CORPORATION | Rolling Prairie, IN | Busey Bank |
| $1–2 million | O'TECH CORPORATION | ROLLING PRAIRIE, IN | Busey Bank |
| $350,000–1 million | O+O HOSPITALITY LLC - OAA1519 | Webster Groves, MO | Busey Bank |
| $1–2 million | OAK BROOK MECHANICAL SERVICES - OAA1907 | Elmhurst, IL | Busey Bank |
| $1–2 million | OAK BROOK MECHANICAL SERVICES, INC. | ELMHURST, IL | Busey Bank |
| $350,000–1 million | OAKLEY SIGNS HOLDINGS LLC - OAA1984 | New York, NY | Busey Bank |
| $350,000–1 million | OAKLEY SIGNS HOLDINGS, LLC | NEW YORK, NY | Busey Bank |
| $150,000–350,000 | OASIS PAINTING SERVICE INC - OAA2008 | Homer Glen, IL | Busey Bank |
| $150,000–350,000 | OASIS PAINTING SERVICE, INC. | HOMER GLEN, IL | Busey Bank |
| $350,000–1 million | OATES ASSOCIATES, INC. | COLLINSVILLE, IL | Busey Bank |
| $350,000–1 million | OFDC COMMERCIAL INTERIORS INC - OAA2743 | Fort Myers, FL | Busey Bank |
| $350,000–1 million | OFDC COMMERCIAL INTERIORS, INC | FORT MYERS, FL | Busey Bank |
| $150,000–350,000 | OLD OAK COUNTRY CLUB INC | HOMER GLEN, IL | Busey Bank |
| $150,000–350,000 | OLD OAK COUNTRY CLUB INC - OAA3087 | Homer Glen, IL | Busey Bank |
| $350,000–1 million | OLIVE & OAK LLC | WEBSTER GROVES, MO | Busey Bank |
| $350,000–1 million | OLIVE & OAK LLC - OAA3255 | Saint Louis, MO | Busey Bank |
| $150,000–350,000 | OLIVE MEDITERRANEAN GRILL INC - OAA3254 | Rosemont, IL | Busey Bank |
| $150,000–350,000 | OLIVE MEDITERRANEAN GRILL INC. | ROSEMONT, IL | Busey Bank |
| $150,000–350,000 | OLYMPIC CONSTRUCTION LLC | URBANA, IL | Busey Bank |
| $150,000–350,000 | OMC RESTAURANT CORPORATION - OAA3766 | Saint Louis, MO | Busey Bank |
| $350,000–1 million | OMEGA PLUMBING, INC. | JOLIET, IL | Busey Bank |
| $350,000–1 million | OMEGA STEEL COMPANY | BRIDGETON, MO | Busey Bank |
| $350,000–1 million | OMEGA STEEL COMPANY - OAA6159 | Bridgeton, MO | Busey Bank |
| $150,000–350,000 | OMNI GEAR & MACHINE CORP | JOLIET, IL | Busey Bank |
| $350,000–1 million | ON THE JOB CONSULTING INC | URBANA, IL | Busey Bank |
| $150,000–350,000 | ONEFIRE MEDIA GROUP, INC | PEORIA, IL | Busey Bank |
| $150,000–350,000 | ONPATH FINANCIAL, LLC | SAINT CHARLES, IL | Busey Bank |
| $350,000–1 million | OPERA HOUSE OPERATOR, LLC | SAINT LOUIS, MO | Busey Bank |
| $350,000–1 million | OPERATING ENGINEERS LOCAL 520 - O600046 | Granite City, IL | Busey Bank |
| $150,000–350,000 | OPERATING ENGINEERS LOCAL 520 JOINT APPRENTICESHIP AND TRAIN | SAINT JACOB, IL | Busey Bank |
| $350,000–1 million | OPTIMA GROUP, LLC | CHESTERFIELD, MO | Busey Bank |
| $150,000–350,000 | ORBIT MACHINING COMPANY | Schiller Park, IL | Busey Bank |
| $150,000–350,000 | ORBIT MACHINING COMPANY | Schiller Park, IL | Busey Bank |
| $150,000–350,000 | ORTHOPEDIC & SPORTS ENHANCEMENT CENTER, LLC | BLOOMINGTON, IL | Busey Bank |
| $1–2 million | ORTHOPEDIC CENTER OF FLORIDA, INC. | FORT MYERS, FL | Busey Bank |
| $150,000–350,000 | ORTIZ EYE ASSOCIATES P.C. | MORRIS, IL | Busey Bank |
| $150,000–350,000 | OSPRO SYSTEMS LLC | FORT MYERS, FL | Busey Bank |
| $150,000–350,000 | OSWALT GENERAL SURGERY, P.C | MORRIS, IL | Busey Bank |
| $150,000–350,000 | OVERLAND METALS, LLC | Overland, MO | Busey Bank |