| $150,000–350,000 | SFW, INC. | DECATUR, IL | Busey Bank |
| $150,000–350,000 | SHANNON'S FIVE STAR, INC | BLOOMINGTON, IL | Busey Bank |
| $150,000–350,000 | SHANNONS 5 STAR INC - SAC9726 | Bloomington, IL | Busey Bank |
| $1–2 million | SHEET METAL WERKS INC. | Arlington Hts, IL | Busey Bank |
| $1–2 million | SHERMAN'S PLACE, INC. | PEORIA HEIGHTS, IL | Busey Bank |
| $150,000–350,000 | SHIELDS AUTO CENTER, INC. | RANTOUL, IL | Busey Bank |
| $150,000–350,000 | SHIELDS AUTOMART OF PAXTON, INC. | PAXTON, IL | Busey Bank |
| $150,000–350,000 | SHORE TO SHORE FREIGHTLINES, INC | FORT MYERS, FL | Busey Bank |
| $150,000–350,000 | SHOW ME BIKERS, INC | COLUMBIA, MO | Busey Bank |
| $1–2 million | SIEVERS EQUIPMENT CO. | HAMEL, IL | Busey Bank |
| $150,000–350,000 | SIEVERT MECHANICAL SERVICES, INC. | Richmond, IL | Busey Bank |
| $150,000–350,000 | SIGMA GRAPHICS INC. | OTTAWA, IL | Busey Bank |
| $150,000–350,000 | SILVESTRI SWEETS, INC. | GENEVA, IL | Busey Bank |
| $350,000–1 million | SKC CONSTRUCTION, INC. | Elgin, IL | Busey Bank |
| $150,000–350,000 | SKYHIGH ERECTORS LLC - SAD4640 | Morris, IL | Busey Bank |
| $150,000–350,000 | SKYHIGH ERECTORS, LLC | MORRIS, IL | Busey Bank |
| $350,000–1 million | SKYKING LIFTS INC. | BENSENVILLE, IL | Busey Bank |
| $350,000–1 million | SMJM, LLC | SAINT LOUIS, MO | Busey Bank |
| $150,000–350,000 | SOCIETY OF ST VINCENT DE PAUL - SAD8223 | West Chicago, IL | Busey Bank |
| $350,000–1 million | SOCIETY OF ST. VINCENT DEPAUL OF JOLIET DIOCESAN COUNCIL, IN | WEST CHICAGO, IL | Busey Bank |
| $150,000–350,000 | SORCE ENTERPRISES,INC | East Peoria, IL | Busey Bank |
| $150,000–350,000 | SORCE ENTERPRISES,INC | EAST PEORIA, IL | Busey Bank |
| $150,000–350,000 | SOUTH SIDE COUNTRY CLUB | DECATUR, IL | Busey Bank |
| $2–5 million | SOUTH SIDE MACHINE WORKS INC - SAD9040 | Saint Louis, MO | Busey Bank |
| $2–5 million | SOUTH SIDE MACHINE WORKS, INC. | SAINT LOUIS, MO | Busey Bank |
| $350,000–1 million | SOUTHWEST DISPOSAL & CLEAN UP, INC | FORT MYERS, FL | Busey Bank |
| $150,000–350,000 | SOUTHWEST DISPOSAL TRANSFER STATION INC. | FORT MYERS, FL | Busey Bank |
| $350,000–1 million | SOVEREIGN TAP LLC | PLAINFIELD, IL | Busey Bank |
| $350,000–1 million | SOVEREIGN TAP LLC - SAF0216 | Plainfield, IL | Busey Bank |
| $150,000–350,000 | SPANESI AMERICAS INC - SAF0204 | Naperville, IL | Busey Bank |
| $150,000–350,000 | SPANESI AMERICAS INC. | NAPERVILLE, IL | Busey Bank |
| $1–2 million | SPIRTAS COMPANY | SAINT LOUIS, MO | Busey Bank |
| $1–2 million | SPIRTAS COMPANY - SAE0062 | Saint Louis, MO | Busey Bank |
| $150,000–350,000 | SPOT CONTENT STUDIO INC - SAA8065 | Saint Louis, MO | Busey Bank |
| $150,000–350,000 | SPOT CONTENT STUDIO, INC. | SAINT LOUIS, MO | Busey Bank |
| $350,000–1 million | SPRINKMANN INSULATION, INC. | PEORIA, IL | Busey Bank |
| $150,000–350,000 | SS. PETER AND PAUL PARISH OF COLLINSVILLE, ILLINOIS | COLLINSVILLE, IL | Busey Bank |
| $150,000–350,000 | ST BONIFACE PARISH OF EDWARDSVILLE ILLINOIS - S000492 | Edwardsville, IL | Busey Bank |
| $150,000–350,000 | ST DENNIS PARISH | LOCKPORT, IL | Busey Bank |
| $150,000–350,000 | ST JOSEPH DERMATOLOGY & VEIN C - SAE0673 | Hinsdale, IL | Busey Bank |
| $150,000–350,000 | ST JOSEPH DERMATOLOGY AND VEIN CLINIC PLLC | SAINT JOSEPH, MI | Busey Bank |
| $150,000–350,000 | ST LOUIS STABILIZING INC - SAF0158 | Manchester, MO | Busey Bank |
| $150,000–350,000 | ST MARY NATIVITY | JOLIET, IL | Busey Bank |
| $350,000–1 million | ST RAPHAEL CHURCH | NAPERVILLE, IL | Busey Bank |
| $350,000–1 million | ST RAPHAEL CHURCH - SAE0800 | Naperville, IL | Busey Bank |
| $350,000–1 million | ST. AUBREY SERVICES LLC | CHESTERFIELD, MO | Busey Bank |
| $150,000–350,000 | ST. BONIFACE PARISH OF EDWARDSVILLE, ILLINOIS | EDWARDSVILLE, IL | Busey Bank |
| $150,000–350,000 | ST. JOSEPH CHURCH | LOCKPORT, IL | Busey Bank |
| $350,000–1 million | ST. LOUIS PAVING LLC | SAINT LOUIS, MO | Busey Bank |
| $150,000–350,000 | ST. LOUIS STABILIZING, INC. | VALLEY PARK, MO | Busey Bank |
| $1–2 million | ST. LOUIS TESTING LABORATORIES, INC. | SAINT LOUIS, MO | Busey Bank |
| $150,000–350,000 | ST. MARY PARISH OF EDWARDSVILLE ILLINOIS | EDWARDSVILLE, IL | Busey Bank |
| $1–2 million | ST. PATRICK CENTER | SAINT LOUIS, MO | Busey Bank |
| $150,000–350,000 | ST. PATRICK'S ROMAN CATHOLIC CONGREGATION OF WASHINGTON | WASHINGTON, IL | Busey Bank |
| $150,000–350,000 | ST. PAUL'S LUTHERAN CHURCH | DECATUR, IL | Busey Bank |
| $350,000–1 million | ST. PHILOMENA'S ROMAN CATHOLIC CONGREGATION OF PEORIA, ILLIN | PEORIA, IL | Busey Bank |
| $150,000–350,000 | ST. RAYMOND PARISH / CATHOLIC BISHOP OF CHICAGO | Mt Prospect, IL | Busey Bank |
| $350,000–1 million | ST. THOMAS ROMAN CATHOLIC CONGREGATION OF PEORIA HEIGHTS, IL | PEORIA HEIGHTS, IL | Busey Bank |
| $150,000–350,000 | ST. THOMAS THE APOSTLE PARISH | NAPERVILLE, IL | Busey Bank |
| $350,000–1 million | ST. VINCENT DE PAUL CATHOLIC CONGREGATION OF PEORIA, ILLINOI | PEORIA, IL | Busey Bank |
| $150,000–350,000 | STACI R. YOUNG, MD, P.C. | EDWARDSVILLE, IL | Busey Bank |
| $350,000–1 million | STAFFING RESOURCES, DBA FAST | SAINT LOUIS, MO | Busey Bank |
| $150,000–350,000 | STALLMAN TRUCKING, INC. | STREAMWOOD, IL | Busey Bank |
| $150,000–350,000 | STANDARD BUILDING SERVICES INC - SAE1251 | ROMEOVILLE, IL | Busey Bank |
| $150,000–350,000 | STANDARD BUILDING SERVICES, INC. | ROMEOVILLE, IL | Busey Bank |
| $350,000–1 million | STANDARD LUMBER CO. | Glenview, IL | Busey Bank |
| $350,000–1 million | STAR DIE MOLDING INC. | Elk Grove Village, IL | Busey Bank |
| $350,000–1 million | STAR DIE MOLDING INC. | ELK GROVE VILLAGE, IL | Busey Bank |
| $150,000–350,000 | STEEL SERVICES ENTERPRISES INC - SAF0962 | Lansing, IL | Busey Bank |
| $150,000–350,000 | STEEL SERVICES ENTERPRISES, INC. | LANSING, IL | Busey Bank |
| $150,000–350,000 | STEP BY STEP INCORPORATED | ALTON, IL | Busey Bank |
| $150,000–350,000 | STERLING SERVICES INC - SAE3049 | Darien, IL | Busey Bank |
| $150,000–350,000 | STERLING SERVICES, INC | DARIEN, IL | Busey Bank |
| $2–5 million | STEVENSON CRANE SERVICE, INC. | BOLINGBROOK, IL | Busey Bank |
| $150,000–350,000 | STIPES PUBLISHING L.L.C. - SAE4086 | Champaign, IL | Busey Bank |
| $150,000–350,000 | STL BAKING | EARTH CITY, MO | Busey Bank |
| $350,000–1 million | STL BAKING LLC - SAE4169 | SAINT LOUIS, MO | Busey Bank |
| $150,000–350,000 | STL SMASH LLC - SAF0202 | Chesterfield, MO | Busey Bank |
| $350,000–1 million | STOCK & ASSOCIATES CONSULTING ENGINEERS, INC. | CHESTERFIELD, MO | Busey Bank |
| $150,000–350,000 | STOCK AUTO BODY INC - SAA2069 | Wood River, IL | Busey Bank |
| $150,000–350,000 | STOCK AUTO BODY, INC. | WOOD RIVER, IL | Busey Bank |
| $150,000–350,000 | STOCKS BUSINESS FURNITURE INC - SAE4274 | Champaign, IL | Busey Bank |
| $150,000–350,000 | STOCKS BUSINESS FURNITURE INCORPORATED | CHAMPAIGN, IL | Busey Bank |
| $150,000–350,000 | STOUT'S FACTORY FAMILY SHOE STORE - SAF0277 | Indianapolis, IN | Busey Bank |
| $150,000–350,000 | STOUT'S FACTORY SHOE STORE COMPANY INC. | INDIANAPOLIS, IN | Busey Bank |
| $150,000–350,000 | STREAMTECH ENGINEERING LLC | SAINT LOUIS, MO | Busey Bank |
| $350,000–1 million | STRONG PRECISION TECHNOLOGIES INC. | Elk Grove Village, IL | Busey Bank |
| $350,000–1 million | STUDIO R.K. INC - SAF0144 | Fort Myers, FL | Busey Bank |
| $350,000–1 million | STUDIO R.K., INC. | FORT MYERS, FL | Busey Bank |
| $350,000–1 million | SULLIVAN-PARKHILL AUTOMOTIVE, INC. | CHAMPAIGN, IL | Busey Bank |
| $350,000–1 million | SUMMER CAMP MUSIC FESTIVAL, LLC | PEORIA, IL | Busey Bank |
| $350,000–1 million | SUMMIT MASONRY & STONEWORKS, INC. | PEORIA, IL | Busey Bank |
| $1–2 million | SUNCOAST CONTRACTORS SUPPLY, INC. | FORT MYERS, FL | Busey Bank |
| $150,000–350,000 | SUNIL MALKANI, M.D., P.A. | FORT MYERS, FL | Busey Bank |
| $1–2 million | SUNRISE HOSPITALITY, INC. | Danville, IL | Busey Bank |
| $1–2 million | SUNRISE HOSPITALITY, INC. | FREMONT, OH | Busey Bank |
| $150,000–350,000 | SUNSHINE STL COMPANY LLC - SAE7373 | Saint Louis, MO | Busey Bank |
| $150,000–350,000 | SUPERIOR EXCAVATING CO - SAE7406 | Minooka, IL | Busey Bank |
| $150,000–350,000 | SUPERIOR EXCAVATING CO. | MINOOKA, IL | Busey Bank |
| $150,000–350,000 | SURFACE 51, INC. | CHAMPAIGN, IL | Busey Bank |