| $1–2 million | SELGE CONSTRUCTION CO., INC. | NILES, MI | 1st Source Bank |
| $350,000–1 million | SERVICE ONE INDUSTRIAL | ELKHART, IN | 1st Source Bank |
| $150,000–350,000 | SERVICE SPECIALTIES OF ELKHART INC | ELKHART, IN | 1st Source Bank |
| $150,000–350,000 | SERVSTEEL INC | MORGAN, PA | 1st Source Bank |
| $150,000–350,000 | SEVEN GENERATIONS ARCHITECTURE & ENGINEERING LLC | KALAMAZOO, MI | 1st Source Bank |
| $150,000–350,000 | SHAMROCK DEVELOPMENT, INC | SOUTH BEND, IN | 1st Source Bank |
| $150,000–350,000 | SHARIN INC | VALPARAISO, IN | 1st Source Bank |
| $150,000–350,000 | SHIER AVIATION CORPORATION DBA CORPORATE HELICOPTERS | SAN DIEGO, CA | 1st Source Bank |
| $350,000–1 million | SIEGMUND EXCAVATION & CONSTRUCTION INC | STAYTON, OR | 1st Source Bank |
| $150,000–350,000 | SIGMA SWITCHES PLUS INC | ELKHART, IN | 1st Source Bank |
| $150,000–350,000 | SILICA SAND TRANSPORT INC | BLOOMINGTON, IL | 1st Source Bank |
| $150,000–350,000 | SLABAUGH METAL FAB LLC | BOURBON, IN | 1st Source Bank |
| $350,000–1 million | SLATILE ROOFING AND SHEET METAL INC | SOUTH BEND, IN | 1st Source Bank |
| $150,000–350,000 | SMCO, INC. | ELKHART, IN | 1st Source Bank |
| $350,000–1 million | SOUTH BEND EMERGENCY PHYSICIANS INC | SOUTH BEND, IN | 1st Source Bank |
| $150,000–350,000 | SOUTH BEND FORM TOOL COMPANY INC | SOUTH BEND, IN | 1st Source Bank |
| $350,000–1 million | SOUTH BEND MODERN MOLDING INC | MISHAWAKA, IN | 1st Source Bank |
| $1–2 million | SOUTH BEND PUBLIC TRANSPORTATION CORPORATION | SOUTH BEND, IN | 1st Source Bank |
| $150,000–350,000 | SOUTH BEND SYMPHONY ORCHESTRA ASSOCIATION | SOUTH BEND, IN | 1st Source Bank |
| $150,000–350,000 | SOUTHERN CROSS AIRCRAFT LLC | FORT LAUDERDALE, FL | 1st Source Bank |
| $150,000–350,000 | SOUTHSHORE DISTRIBUTION LLC | SAINT JOSEPH, MI | 1st Source Bank |
| $350,000–1 million | SOUTHSHORE ENTERPRISES INC | SAINT JOSEPH, MI | 1st Source Bank |
| $350,000–1 million | SPECIALIZED COMPONENT PARTS LIMITED LLC | AUBURN, IN | 1st Source Bank |
| $2–5 million | SPECIALIZED STAFFING SOLUTIONS LLC | SOUTH BEND, IN | 1st Source Bank |
| $350,000–1 million | SPECIALIZED TRANSPORT & RIGGING LLC | PALMER, AK | 1st Source Bank |
| $150,000–350,000 | SPECIALTY PRODUCTS AND POLYMERS | NILES, MI | 1st Source Bank |
| $350,000–1 million | SPRINGWISE FACILITY MANAGEMENT, INC. | SOUTH BEND, IN | 1st Source Bank |
| $2–5 million | ST ANNE HOME OF THE DIOCESE OF FORT WAYNE SOUTH BEND INC | FORT WAYNE, IN | 1st Source Bank |
| $350,000–1 million | ST ELIZABETH ANN SETON CATHOLIC CHURCH | FORT WAYNE, IN | 1st Source Bank |
| $350,000–1 million | ST JOSEPH CHURCH | SOUTH BEND, IN | 1st Source Bank |
| $350,000–1 million | ST JOSEPH PAPER AND PACKAGING INC | SOUTH BEND, IN | 1st Source Bank |
| $150,000–350,000 | ST JOSEPH PLACEMENT, LLC | ELKHART, IN | 1st Source Bank |
| $350,000–1 million | ST JOSEPH VALLEY ANESTHESIA PC | SOUTH BEND, IN | 1st Source Bank |
| $350,000–1 million | ST PIUS X CHURCH | GRANGER, IN | 1st Source Bank |
| $150,000–350,000 | ST. ADALBERT CHURCH | SOUTH BEND, IN | 1st Source Bank |
| $1–2 million | ST. ANTHONY HEALTH CARE INC | LAFAYETTE, IN | 1st Source Bank |
| $150,000–350,000 | ST. LOUIS BESANCON CATHOLIC CHURCH | NEW HAVEN, IN | 1st Source Bank |
| $150,000–350,000 | ST. VINCENT DE PAUL CATHOLIC CHURCH | ELKHART, IN | 1st Source Bank |
| $350,000–1 million | STALLION COURIER SERVICES LLC | FORT WAYNE, IN | 1st Source Bank |
| $350,000–1 million | STAY METRICS LLC | SOUTH BEND, IN | 1st Source Bank |
| $150,000–350,000 | STEPPIN' UP PHYSICAL THERAPY, INC. | FORT WAYNE, IN | 1st Source Bank |
| $150,000–350,000 | STEVEN L LANGER, P.C. | VALPARAISO, IN | 1st Source Bank |
| $350,000–1 million | STOUTCO, INC. | BRISTOL, IN | 1st Source Bank |
| $150,000–350,000 | STRATIS GROUP LLC | NORTH PALM BEACH, FL | 1st Source Bank |
| $350,000–1 million | STUCKY BROTHERS INC | FORT WAYNE, IN | 1st Source Bank |
| $150,000–350,000 | STUTZMAN BROTHERS PROPERTY MAINTENANCE INC | DADE CITY, FL | 1st Source Bank |
| $150,000–350,000 | SUBWAY SHOP OF SOUTH BEND VII INC. | FORT WAYNE, IN | 1st Source Bank |
| $2–5 million | SUDBURY EXPRESS INC | GARY, IN | 1st Source Bank |
| $150,000–350,000 | SUMMIT MANUFACTURING AND MACHINING INC. | BREMEN, IN | 1st Source Bank |
| $350,000–1 million | SUPERIOR AXLE LLC | ELKHART, IN | 1st Source Bank |
| $150,000–350,000 | SUPERIOR FLOORING LLC | MISHAWAKA, IN | 1st Source Bank |
| $350,000–1 million | SUPREME CASTING INC | STEVENSVILLE, MI | 1st Source Bank |
| $350,000–1 million | SWING BATTER SWING LLC | SOUTH BEND, IN | 1st Source Bank |
| $150,000–350,000 | SYNERGY FOODS, LLC | BROOKSTON, IN | 1st Source Bank |
| $350,000–1 million | SYSTEMS & SERVICES OF MICHIANA INC. | SOUTH BEND, IN | 1st Source Bank |
| $150,000–350,000 | T & M RUBBER INC. | GOSHEN, IN | 1st Source Bank |
| $350,000–1 million | T J SNUGGLES INC. | BREMEN, IN | 1st Source Bank |
| $350,000–1 million | T.B.V. ENTERPRISES INCORPORATED | PHOENIX, AZ | 1st Source Bank |
| $350,000–1 million | TALON LLC | ELKHART, IN | 1st Source Bank |
| $350,000–1 million | TALON PRODUCTS LLC | BRISTOL, IN | 1st Source Bank |
| $150,000–350,000 | TAPE & LABEL GRAPHIC SYSTEMS INC | ELMHURST, IL | 1st Source Bank |
| $150,000–350,000 | TB PLASTIC EXTRUSIONS INC | ELKHART, IN | 1st Source Bank |
| $150,000–350,000 | TBK MATERIALS, LLC | PLANO, TX | 1st Source Bank |
| $1–2 million | TEAM QUALITY SERVICE, INC. | AUBURN, IN | 1st Source Bank |
| $150,000–350,000 | TECHNICKEL INC | BENTON HARBOR, MI | 1st Source Bank |
| $150,000–350,000 | TECHNOLOGY CONTRACTING SERVICE, INC. | FORT WAYNE, IN | 1st Source Bank |
| $1–2 million | TECNIQ INC | GALESBURG, MI | 1st Source Bank |
| $350,000–1 million | TEKMODO HOLDINGS, LLC | ELKHART, IN | 1st Source Bank |
| $350,000–1 million | TEXMO PRECISION CASTING (US) INC. | WARSAW, IN | 1st Source Bank |
| $350,000–1 million | TGU, LLC | MINNEAPOLIS, MN | 1st Source Bank |
| $150,000–350,000 | THE AIRMARKING COMPANY INC | ROCHESTER, IN | 1st Source Bank |
| $350,000–1 million | THE ART MOSAIC & TILE CO OF SOUTH BEND INC | SOUTH BEND, IN | 1st Source Bank |
| $150,000–350,000 | THE ART OF DESIGN, INC | ELKHART, IN | 1st Source Bank |
| $150,000–350,000 | THE BROKERAGE GROUP INC. | SOUTH BEND, IN | 1st Source Bank |
| $150,000–350,000 | THE CENTER FOR THE HOMELESS, INC. | SOUTH BEND, IN | 1st Source Bank |
| $5–10 million | THE CORPORATION OF SAINT MARY'S COLLEGE NOTRE DAME | NOTRE DAME, IN | 1st Source Bank |
| $150,000–350,000 | THE GESCO GROUP LLC | FORT WAYNE, IN | 1st Source Bank |
| $5–10 million | THE HARRISON STEEL CASTINGS COMPANY | ATTICA, IN | 1st Source Bank |
| $350,000–1 million | THE HEALY GROUP INC | SOUTH BEND, IN | 1st Source Bank |
| $150,000–350,000 | THE MONTESSORI ACADEMY AT EDISON LAKES INC | MISHAWAKA, IN | 1st Source Bank |
| $1–2 million | THE NORTHWESTERN INDIANA TELEPHONE COMPANY INC | HEBRON, IN | 1st Source Bank |
| $150,000–350,000 | THE OSBY CO INC | HEBRON, IN | 1st Source Bank |
| $150,000–350,000 | THE RED HEN TURF FARM INC | NEW CARLISLE, IN | 1st Source Bank |
| $350,000–1 million | THE SERGIO CORPORATION | SOUTH BEND, IN | 1st Source Bank |
| $350,000–1 million | THE STANLEY CLARK SCHOOL INC | SOUTH BEND, IN | 1st Source Bank |
| $150,000–350,000 | THERMCO INSTRUMENT CORPORATION | LA PORTE, IN | 1st Source Bank |
| $350,000–1 million | THOMAS ELECTRICAL INC | PHOENIX, AZ | 1st Source Bank |
| $350,000–1 million | THORGREN TOOL AND MOLDING CO, INC | VALPARAISO, IN | 1st Source Bank |
| $150,000–350,000 | THREE DAUGHTERS CORPORATION | AUBURN, IN | 1st Source Bank |
| $150,000–350,000 | TK METAL FORMING, INC | ELKHART, IN | 1st Source Bank |
| $150,000–350,000 | TK STEEL, INC. | ELKHART, IN | 1st Source Bank |
| $150,000–350,000 | TMJ FLOORING INC | FORT WAYNE, IN | 1st Source Bank |
| $350,000–1 million | TOEFCO ENGINEERING, INC. | NILES, MI | 1st Source Bank |
| $1–2 million | TOTAL EXCAVATING LLC | RIVER FALLS, WI | 1st Source Bank |
| $350,000–1 million | TOWER ADVERTISING | TOPEKA, IN | 1st Source Bank |
| $150,000–350,000 | TOWNE INC | ELKHART, IN | 1st Source Bank |
| $350,000–1 million | TRANSFORMATIONS BY WIELAND, INC. | FORT WAYNE, IN | 1st Source Bank |
| $350,000–1 million | TRANSPORTATION CHARTER SERVICES INC | ORANGE, CA | 1st Source Bank |
| $350,000–1 million | TRI EAGLE PROVISIONS INC. | GARY, IN | 1st Source Bank |
| $350,000–1 million | TRI-CITY AGGREGATES INC | HOLLY, MI | 1st Source Bank |