| $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 |
| $350,000–1 million | THORGREN TOOL AND MOLDING CO, INC | VALPARAISO, IN | 1st Source Bank |
| $150,000–350,000 | THREE DAUGHTERS CORP | Auburn, 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 METAL FORMING, INC | ELKHART, IN | 1st Source Bank |
| $150,000–350,000 | TK STEEL 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 |
| $150,000–350,000 | TOLON LLC | Fort Wayne, IN | 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 |
| $350,000–1 million | TOWER ADVERTISING PRODUCTS INC | 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 | TRANSFORMATIONS BY WIELAND, INC. | FORT WAYNE, IN | 1st Source Bank |
| $1–2 million | TRANSPORTATION CHARTER SERVICES INC | Orange, CA | 1st Source Bank |
| $350,000–1 million | TRANSPORTATION CHARTER SERVICES INC | ORANGE, CA | 1st Source Bank |
| $350,000–1 million | TRI CORP WIRELESS INC. | Valparaiso, IN | 1st Source Bank |
| $350,000–1 million | TRI COUNTY AMBULANCE SERVICES INC | Wakarusa, IN | 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 |
| $350,000–1 million | TRI-CORP WIRELESS INC | VALPARAISO, IN | 1st Source Bank |
| $350,000–1 million | TRI-COUNTY AMBULANCE SERVICE, INC. | WAKARUSA, IN | 1st Source Bank |
| $350,000–1 million | TRI-STATES IMPORTS LLC | MISHAWAKA, IN | 1st Source Bank |
| $1–2 million | TRUCK SERVICE INC | FOREST CITY, NC | 1st Source Bank |
| $150,000–350,000 | TRUE BLUE SC LLC | SUMMERVILLE, SC | 1st Source Bank |
| $350,000–1 million | TUESLEY HALL KONOPA LLP | SOUTH BEND, IN | 1st Source Bank |
| $350,000–1 million | TWINLODE CORPORATION | SOUTH BEND, IN | 1st Source Bank |
| $350,000–1 million | U.S. TRUCK & TRAILER SERVICE, INC. | LAKEVILLE, IN | 1st Source Bank |
| $1–2 million | UNITED BEVERAGE COMPANY OF SOUTH BEND INC | SOUTH BEND, IN | 1st Source Bank |
| $2–5 million | UNITED CONSOLIDATED GROUP INC. | Fairburn, GA | 1st Source Bank |
| $350,000–1 million | UNITED CONTAINER CO. | SAINT JOSEPH, MI | 1st Source Bank |
| $350,000–1 million | UNITED ROLL FORMING INC | Elkhart, IN | 1st Source Bank |
| $150,000–350,000 | UNITED ROLL FORMING INC | ELKHART, IN | 1st Source Bank |
| $150,000–350,000 | UNITED WAY OF PORTER COUNTY INC | VALPARAISO, IN | 1st Source Bank |
| $150,000–350,000 | UNITED WAY OF PORTER COUNTY INDIANA INC. | Valparaiso, IN | 1st Source Bank |
| $150,000–350,000 | UNIVERSAL SERVICES COMPANY LLC | SOUTH BEND, IN | 1st Source Bank |
| $150,000–350,000 | UROLOGY ASSOCIATES OF ELKHART, INC. | ELKHART, IN | 1st Source Bank |
| $150,000–350,000 | US 31 SUPPLY INC | SOUTH BEND, IN | 1st Source Bank |
| $150,000–350,000 | US SIGNCRAFTERS INC. | OSCEOLA, IN | 1st Source Bank |
| $350,000–1 million | US TRUCK & TRAILER SERVICE INC | Lakeville, IN | 1st Source Bank |
| $150,000–350,000 | USA LOGISTICS INC | CHESTERTON, IN | 1st Source Bank |
| $350,000–1 million | VALLEY SCREEN PROCES CO. INC. | MISHAWAKA, IN | 1st Source Bank |
| $350,000–1 million | VALLEY SCREEN PROCESS CO INC | Mishawaka, IN | 1st Source Bank |
| $350,000–1 million | VALPARAISO FAMILY DENTISTRY PC | VALPARAISO, IN | 1st Source Bank |
| $150,000–350,000 | VALPO PIZZA INC | Saint Joseph, MI | 1st Source Bank |
| $350,000–1 million | VALPO PIZZA INC. | SAINT JOSEPH, MI | 1st Source Bank |
| $350,000–1 million | VALUE TOOL & ENGINEERING INC | SOUTH BEND, IN | 1st Source Bank |
| $350,000–1 million | VALUE TOOL & ENGINEERING INC | South Bend, IN | 1st Source Bank |
| $150,000–350,000 | VARNER'S GREENHOUSE INC. | NILES, MI | 1st Source Bank |
| $150,000–350,000 | VENNLI INC | South Bend, IN | 1st Source Bank |
| $150,000–350,000 | VENNLI, INC. | SOUTH BEND, IN | 1st Source Bank |
| $350,000–1 million | VINTAGE TRAILERS LTD | ELKHART, IN | 1st Source Bank |
| $150,000–350,000 | VISION LIGHTING CORPORATION | Fort Wayne, IN | 1st Source Bank |
| $150,000–350,000 | VISION LIGHTING CORPORATION | Fort Wayne, IN | 1st Source Bank |
| $150,000–350,000 | VISION TRAINING PRODUCTS INC | MISHAWAKA, IN | 1st Source Bank |
| $350,000–1 million | VISITING NURSE ASSOCIATION OF PORTER COUNTY INDIANA | VALPARAISO, IN | 1st Source Bank |
| $350,000–1 million | VITRACOAT AMERICA, INC. | Elkhart, IN | 1st Source Bank |
| $150,000–350,000 | VOLADA INC | La Porte, IN | 1st Source Bank |
| $150,000–350,000 | VOLADA INC. | LA PORTE, IN | 1st Source Bank |
| $150,000–350,000 | W J HAGERTY & SONS LTD INC | SOUTH BEND, IN | 1st Source Bank |
| $150,000–350,000 | W J HAGERTY AND SONS LTD INC | South Bend, IN | 1st Source Bank |
| $150,000–350,000 | WALKERTON TOOL & DIE INC | WALKERTON, IN | 1st Source Bank |
| $150,000–350,000 | WALKERTON TOOL & DIE INC | Walkerton, IN | 1st Source Bank |
| $350,000–1 million | WARSAW ENGINEERING & FABRICATING INC | WARSAW, IN | 1st Source Bank |
| $350,000–1 million | WARSAW ENGINEERING & FABRICATING INC | Warsaw, IN | 1st Source Bank |
| $150,000–350,000 | WAY ROUTES INC. | Tampa, FL | 1st Source Bank |
| $350,000–1 million | WBK ENGINEERING LLC | SAINT CHARLES, IL | 1st Source Bank |
| $150,000–350,000 | WE CARE FOOD STORES INC | KNOX, IN | 1st Source Bank |
| $150,000–350,000 | WELLINGTON & WEDDELL EYE CARE PC | GOSHEN, IN | 1st Source Bank |
| $150,000–350,000 | WELLINGTON & WEDDELL EYE CARE PC | Goshen, IN | 1st Source Bank |
| $350,000–1 million | WENDT LLP | Wabash, IN | 1st Source Bank |
| $350,000–1 million | WENDT, LLP | WABASH, IN | 1st Source Bank |
| $350,000–1 million | WEOC EAST INC | FORT WAYNE, IN | 1st Source Bank |
| $350,000–1 million | WEOC SOUTH INC | FORT WAYNE, IN | 1st Source Bank |
| $1–2 million | WEOC, INC. | FORT WAYNE, IN | 1st Source Bank |
| $1–2 million | WEST AIR INC | FRESNO, CA | 1st Source Bank |
| $150,000–350,000 | WESTERN CONSTRUCTION AUCTIONS, INC. | PERRIS, CA | 1st Source Bank |
| $350,000–1 million | WESTERN TRANSPORT INC | IDAHO FALLS, ID | 1st Source Bank |
| $150,000–350,000 | WGE EQUIPMENT SOLUTIONS LLC | Fort Wayne, IN | 1st Source Bank |
| $150,000–350,000 | WGE EQUIPMENT SOLUTIONS LLC | FORT WAYNE, IN | 1st Source Bank |
| $150,000–350,000 | WHITAKER TRANSPORTATION COMPANY | SPARTANBURG, SC | 1st Source Bank |
| $150,000–350,000 | WHITAKER TRANSPORTATION COMPANY INC. | Boiling Springs, SC | 1st Source Bank |
| $350,000–1 million | WIERS FLEET PARTNERS INC | PLYMOUTH, IN | 1st Source Bank |
| $1–2 million | WIERS INTERNATIONAL TRUCKS, INC | PLYMOUTH, IN | 1st Source Bank |
| $150,000–350,000 | WILLIAMS AERIAL & MAPPING INC | South Bend, IN | 1st Source Bank |
| $150,000–350,000 | WILLIAMS AERIAL & MAPPING INC | SOUTH BEND, IN | 1st Source Bank |
| $350,000–1 million | WILLIAMSON EMPLOYMENT SERVICES, INC. | SAINT JOSEPH, MI | 1st Source Bank |
| $2–5 million | WINAMAC COIL SPRING INC | KEWANNA, IN | 1st Source Bank |
| $350,000–1 million | WINGS ETC INC | FORT WAYNE, IN | 1st Source Bank |
| $1–2 million | WISHBONE MEDICAL INC | WARSAW, IN | 1st Source Bank |
| $350,000–1 million | WISSCO IRRIGATION INC | SOUTH BEND, IN | 1st Source Bank |
| $150,000–350,000 | WOLF COMMERCIAL ROOFING INC | South Bend, IN | 1st Source Bank |
| $150,000–350,000 | WOLF CORPORATION | FORT WAYNE, IN | 1st Source Bank |
| $350,000–1 million | WOMEN'S CARE CENTER, INC. | SOUTH BEND, IN | 1st Source Bank |
| $350,000–1 million | WOODENWARE USA, INC. | ETNA GREEN, IN | 1st Source Bank |