| $350,000–1 million | REPLACEMENT SERVICES, L.L.C. | BELLEVILLE, IL | Busey Bank |
| $150,000–350,000 | RESCUED HEART ANIMAL HOSPITAL, P.C. | PEKIN, IL | Busey Bank |
| $350,000–1 million | RESURGENCE LEGAL GROUP, P.C. | DEERFIELD, IL | Busey Bank |
| $350,000–1 million | REZIN ORTHOPEDICS AND SPORTS MEDICINE, SC | MORRIS, IL | Busey Bank |
| $150,000–350,000 | RICHARD H. TARVIN, INC. | BLOOMINGTON, IL | Busey Bank |
| $150,000–350,000 | RICHARD J REIMER & ASSOCIATES PC | HINSDALE, IL | Busey Bank |
| $150,000–350,000 | RISE COMMUNITY DEVELOPMENT | SAINT LOUIS, MO | Busey Bank |
| $150,000–350,000 | RIVERSIDE BAPTIST CHURCH OF FORT MYERS, INC | FORT MYERS, FL | Busey Bank |
| $150,000–350,000 | ROAD KING EXPRESS INC | PALOS PARK, IL | Busey Bank |
| $150,000–350,000 | ROBERT F GIRGIS DDS LTD | WOODRIDGE, IL | Busey Bank |
| $150,000–350,000 | ROD'S SERVICES, INC. | SAINT LOUIS, MO | Busey Bank |
| $150,000–350,000 | ROLAND REALTY, INC. | CHAMPAIGN, IL | Busey Bank |
| $150,000–350,000 | ROMOLO & ASSOCIATES, LLC | PEORIA, IL | Busey Bank |
| $150,000–350,000 | ROOSTER STRATEGIC SOLUTIONS LLC | CLINTON, IL | Busey Bank |
| $150,000–350,000 | ROSARIO CIBELLA & ASSOCIATES, LTD. | JOLIET, IL | Busey Bank |
| $150,000–350,000 | ROTON PRODUCTS, INC | SAINT LOUIS, MO | Busey Bank |
| $150,000–350,000 | ROY E. SCHMIDT, INC. | SAINT LOUIS, MO | Busey Bank |
| $150,000–350,000 | ROY'S AUTO REPAIR, L.L.C. | BALLWIN, MO | Busey Bank |
| $350,000–1 million | ROYAL PUBLISHING, INC. | PEORIA, IL | Busey Bank |
| $350,000–1 million | RV BUILDERS CORP | BRIDGEVIEW, IL | Busey Bank |
| $150,000–350,000 | S.W. GLASSMAN INC | URBANA, IL | Busey Bank |
| $150,000–350,000 | SAINT LORENZO HOSPITALITY, LLC | BELLEVILLE, IL | Busey Bank |
| $150,000–350,000 | SAINT MARK ROMAN CATHOLIC CONGREGATION | PEORIA, IL | Busey Bank |
| $350,000–1 million | SAINT MATTHEW ROMAN CATHOLIC CONGREGATION OF CHAMPAIGN, ILLINOIS | CHAMPAIGN, IL | Busey Bank |
| $150,000–350,000 | SAINTS JAMES AND PATRICK PARISH | DECATUR, IL | Busey Bank |
| $150,000–350,000 | SALT AND LIGHT, NFP | URBANA, IL | Busey Bank |
| $150,000–350,000 | SAN RAPHAEL INC | FAIRVIEW HEIGHTS, IL | Busey Bank |
| $350,000–1 million | SANA LAKE RECOVERY CENTER LLC | DITTMER, MO | Busey Bank |
| $150,000–350,000 | SANIBEL MOORINGS CONDOMINIUM ASSOCIATION, INC | SANIBEL, FL | Busey Bank |
| $1–2 million | SBS CREATIX, LLC | SAINT LOUIS, MO | Busey Bank |
| $1–2 million | SCHIBER TRUCK COMPANY, INC | HARTFORD, IL | Busey Bank |
| $350,000–1 million | SCHMERSAHL TRELOAR & CO., PC | SAINT LOUIS, MO | Busey Bank |
| $150,000–350,000 | SCHREITER CONCRETE COMPANY | O FALLON, MO | Busey Bank |
| $150,000–350,000 | SCHREITER MATERIALS LLC | O FALLON, MO | Busey Bank |
| $150,000–350,000 | SCHREITER READY-MIX AND MATERIALS, INC | O FALLON, MO | Busey Bank |
| $150,000–350,000 | SCOTSMAN COIN & JEWELRY, INC. | SAINT LOUIS, MO | Busey Bank |
| $150,000–350,000 | SCOTT F. ANDERSON, D.D.S., P.C | CHAMPAIGN, IL | Busey Bank |
| $350,000–1 million | SEA FOOD BUSINESS, INC. | EAST PEORIA, IL | Busey Bank |
| $350,000–1 million | SECOND MILE SERVICE SERIES, LLC | VALLEY PARK, MO | Busey Bank |
| $150,000–350,000 | SECURE CIRCLE LLC | SANTA CLARA, CA | Busey Bank |
| $350,000–1 million | SECURITY TRANSPORT, INC. | HAMMOND, IN | Busey Bank |
| $350,000–1 million | SELECTIVE SEARCH HOLDINGS, LLC | CHICAGO, IL | Busey Bank |
| $150,000–350,000 | SEMMELMEYER - CORBY CO | SAINT LOUIS, MO | Busey Bank |
| $1–2 million | SENDRA SERVICE CORP. | MOKENA, IL | Busey Bank |
| $150,000–350,000 | SENTINUS, LLC | OAK BROOK, IL | Busey Bank |
| $150,000–350,000 | SENTIO BIOSCIENCES, LLC | MARYLAND HEIGHTS, MO | Busey Bank |
| $150,000–350,000 | SENTRY SAFETY SUPPLY INC | PEORIA, IL | Busey Bank |
| $150,000–350,000 | SERBIN MEDICAL BILLING, LLC | FORT MYERS, FL | Busey Bank |
| $150,000–350,000 | SFW, INC. | DECATUR, IL | Busey Bank |
| $150,000–350,000 | SHANNON'S 5 STAR, INC. | BLOOMINGTON, 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 | SIGMA GRAPHICS INC. | OTTAWA, IL | Busey Bank |
| $150,000–350,000 | SILVESTRI SWEETS, INC. | GENEVA, IL | Busey Bank |
| $150,000–350,000 | SJ BROADCASTING LLC | URBANA, 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 |
| $350,000–1 million | SOCIETY OF ST. VINCENT DEPAUL OF JOLIET DIOCESAN COUNCIL, INC. | WEST CHICAGO, 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. | 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 |
| $150,000–350,000 | SPANESI AMERICAS INC. | NAPERVILLE, IL | Busey Bank |
| $1–2 million | SPIRTAS COMPANY | 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 DENNIS PARISH | LOCKPORT, IL | Busey Bank |
| $150,000–350,000 | ST JOSEPH DERMATOLOGY AND VEIN CLINIC PLLC | SAINT JOSEPH, MI | 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. 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, ILLINOIS | PEORIA, IL | Busey Bank |
| $350,000–1 million | ST. THOMAS ROMAN CATHOLIC CONGREGATION OF PEORIA HEIGHTS, ILLINOIS | 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, ILLINOIS | 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. | ROMEOVILLE, IL | Busey Bank |
| $150,000–350,000 | STEP BY STEP INCORPORATED | ALTON, 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 | STL BAKING, LLC | EARTH CITY, MO | Busey Bank |