| $350,000–1 million | BELLMART INC | Bremen, IN | 1st Source Bank |
| $350,000–1 million | BELLMART, INC. | BREMEN, IN | 1st Source Bank |
| $1–2 million | BENTLEY TRUCK SERVICES INC | PHILADELPHIA, PA | 1st Source Bank |
| $150,000–350,000 | BER REFRIGERATION HEATING AND COOLING, INC. | SAINT JOSEPH, MI | 1st Source Bank |
| $350,000–1 million | BERKEL MIDWEST SALES & SERVICE, INC. | LA PORTE, IN | 1st Source Bank |
| $150,000–350,000 | BERTRAND PRODUCTS INC | South Bend, IN | 1st Source Bank |
| $150,000–350,000 | BERTRAND PRODUCTS INC | SOUTH BEND, IN | 1st Source Bank |
| $150,000–350,000 | BETTCHER TRUCKING INC | LAKEVILLE, IN | 1st Source Bank |
| $150,000–350,000 | BETTCHER TRUCKING INC. | Lakeville, IN | 1st Source Bank |
| $2–5 million | BIG C LUMBER CO. INC. | GRANGER, IN | 1st Source Bank |
| $1–2 million | BISHOP DWENGER HIGH SCHOOL | Fort Wayne, IN | 1st Source Bank |
| $350,000–1 million | BISHOP LUERS HIGH SCHOOL | FORT WAYNE, IN | 1st Source Bank |
| $150,000–350,000 | BLUE JACKET INC | FORT WAYNE, IN | 1st Source Bank |
| $150,000–350,000 | BLYTHE'S ATHLETICS INC. | VALPARAISO, IN | 1st Source Bank |
| $150,000–350,000 | BLYTHES ATHLETICS INC | Valparaiso, IN | 1st Source Bank |
| $150,000–350,000 | BMD AGENCY, LLC | Fort Wayne, IN | 1st Source Bank |
| $150,000–350,000 | BMD AGENCY, LLC | FORT WAYNE, IN | 1st Source Bank |
| $150,000–350,000 | BOB FRAME PLUMBING SERVICES INC | SOUTH BEND, IN | 1st Source Bank |
| $350,000–1 million | BOLING VISION CENTER, LLC | ELKHART, IN | 1st Source Bank |
| $150,000–350,000 | BORNTRAGER ENTERPRISE INC | Goshen, IN | 1st Source Bank |
| $150,000–350,000 | BOYS AND GIRLS CLUB OF ST. JOSEPH COUNTY INC | SOUTH BEND, IN | 1st Source Bank |
| $350,000–1 million | BRANCH GYMNASTICS & PHYSICAL DEVELOPMENT INC | Springfield, MI | 1st Source Bank |
| $350,000–1 million | BRANCH GYMNASTICS & PHYSICAL DEVLOPMENT INC | BATTLE CREEK, MI | 1st Source Bank |
| $150,000–350,000 | BREMTOWN FINE CUSTOM CABINETRY INC | Bremen, IN | 1st Source Bank |
| $1–2 million | BRIDGE STAFFING INC | ELKHART, IN | 1st Source Bank |
| $150,000–350,000 | BRISTOL TOOL & DIE, INC. | BRISTOL, IN | 1st Source Bank |
| $350,000–1 million | BRITE ELECTRIC INC | GRANGER, IN | 1st Source Bank |
| $150,000–350,000 | BROADBAND ANTENNA TRACKING SYSTEMS INC | Indianapolis, IN | 1st Source Bank |
| $150,000–350,000 | BROADBAND ANTENNA TRACKING SYSTEMS, INC. | INDIANAPOLIS, IN | 1st Source Bank |
| $350,000–1 million | BROTHERS BAKING CO INC | Edwardsburg, MI | 1st Source Bank |
| $150,000–350,000 | BUILDERS IRON WORKS INC | Mishawaka, IN | 1st Source Bank |
| $150,000–350,000 | BUILDERS IRON WORKS INC | Mishawaka, IN | 1st Source Bank |
| $2–5 million | BULK TRANSPORT CORP | MICHIGAN CITY, IN | 1st Source Bank |
| $350,000–1 million | BULLSKIN STONE & LIME COMPANY | LATROBE, PA | 1st Source Bank |
| $350,000–1 million | BULLSKIN STONE & LIME LLC | Latrobe, PA | 1st Source Bank |
| $350,000–1 million | BURKHART ADVERTISING INC | SOUTH BEND, IN | 1st Source Bank |
| $150,000–350,000 | BURNS CONSTRUCTION INC. | MACY, IN | 1st Source Bank |
| $350,000–1 million | BURT, BLEE, DIXON, SUTTON & BLOOM, LLP | FORT WAYNE, IN | 1st Source Bank |
| $350,000–1 million | C & B CUSTOM MODULAR, INC. | BRISTOL, IN | 1st Source Bank |
| $1–2 million | C & D HUGHES, INCORPORATED | CHARLOTTE, MI | 1st Source Bank |
| $1–2 million | C & S MACHINE PRODUCTS INC | Niles, MI | 1st Source Bank |
| $1–2 million | C & S MACHINE PRODUCTS INC | NILES, MI | 1st Source Bank |
| $350,000–1 million | C F B INC. | BRISTOL, IN | 1st Source Bank |
| $350,000–1 million | CADDO CONNECTIONS INC | LA PORTE, IN | 1st Source Bank |
| $350,000–1 million | CADDO CONNECTIONS INC | La Porte, IN | 1st Source Bank |
| $150,000–350,000 | CAGLE INDUSTRIAL SYSTEMS MAINTENANCE INC | VALPARAISO, IN | 1st Source Bank |
| $150,000–350,000 | CAGLE INDUSTRIAL SYSTEMS MAINTENANCE INCORPORATED | Valparaiso, IN | 1st Source Bank |
| $150,000–350,000 | CALIENTE LLC | Fort Wayne, IN | 1st Source Bank |
| $150,000–350,000 | CALIENTE LLC | FORT WAYNE, IN | 1st Source Bank |
| $350,000–1 million | CALIFORNIA RENT-A-CAR | CULVER CITY, CA | 1st Source Bank |
| $150,000–350,000 | CALIFORNIA RENT-A-CAR | Los Angeles, CA | 1st Source Bank |
| $150,000–350,000 | CAPITAL LEASE GROUP LTD | BROCKTON, MA | 1st Source Bank |
| $1–2 million | CAREER ACADEMY OF SOUTH BEND INC | SOUTH BEND, IN | 1st Source Bank |
| $150,000–350,000 | CARIBBEAN LEASING AND ECO TRANSPORTATION LLC | ST THOMAS, VI | 1st Source Bank |
| $150,000–350,000 | CARIBBEAN LEASING AND ECO TRANSPORTATION LLC | Charlotte Amalie, VI | 1st Source Bank |
| $350,000–1 million | CASS HUDSON CO INC | Elkhart, IN | 1st Source Bank |
| $350,000–1 million | CASS HUDSON CO. INC. | ELKHART, IN | 1st Source Bank |
| $150,000–350,000 | CAST COATINGS INC | Galien, MI | 1st Source Bank |
| $150,000–350,000 | CAST COATINGS INC. | Galien, MI | 1st Source Bank |
| $150,000–350,000 | CASTLETON VILLAGE CENTER INC | FORT WAYNE, IN | 1st Source Bank |
| $150,000–350,000 | CASTLETON VILLAGE CENTER INC. | Fort Wayne, IN | 1st Source Bank |
| $350,000–1 million | CATHERINE KASPER LIFE CENTER, INC. | PLYMOUTH, IN | 1st Source Bank |
| $150,000–350,000 | CAVANAUGH AND NONDORF ORTHODONTICS PC | Valparaiso, IN | 1st Source Bank |
| $350,000–1 million | CEDAR CREEK LOGGING INC | BLOUNTSTOWN, FL | 1st Source Bank |
| $150,000–350,000 | CENTERLINE MECHANICAL CONTRACTING INC | South Bend, IN | 1st Source Bank |
| $150,000–350,000 | CENTERLINE MECHANICAL CONTRACTING, INC. | SOUTH BEND, IN | 1st Source Bank |
| $350,000–1 million | CENTRAL INDIANA GLASS & GLAZING INC. | Lafayette, IN | 1st Source Bank |
| $150,000–350,000 | CENTRAL INDIANA GLASS AND GLAZING INC. | LAFAYETTE, IN | 1st Source Bank |
| $1–2 million | CENTURY FOAM LLC | ELKHART, IN | 1st Source Bank |
| $1–2 million | CERES ENVIRONMENTAL INC. | LAKEWOOD RANCH, FL | 1st Source Bank |
| $2–5 million | CERES ENVIRONMENTAL SERVICES | MINNEAPOLIS, MN | 1st Source Bank |
| $2–5 million | CERES ENVIRONMENTAL SERVICES INC. | Minneapolis, MN | 1st Source Bank |
| $150,000–350,000 | CHARLIES GROUP LLC | South Bend, IN | 1st Source Bank |
| $150,000–350,000 | CHARLIES GROUP LLC. | SOUTH BEND, IN | 1st Source Bank |
| $150,000–350,000 | CHILDRENS THERAPY INNOVATIONS INC | South Bend, IN | 1st Source Bank |
| $150,000–350,000 | CHRIS & CHRIS INC | Plymouth, IN | 1st Source Bank |
| $150,000–350,000 | CHRIS & CHRIS INC. | PLYMOUTH, IN | 1st Source Bank |
| $350,000–1 million | CHRIST THE KING CHURCH | SOUTH BEND, IN | 1st Source Bank |
| $150,000–350,000 | CHRISTEN SOUERS, LLC | FORT WAYNE, IN | 1st Source Bank |
| $150,000–350,000 | CHRISTOPHER LOEHMER | Monterey, IN | 1st Source Bank |
| $150,000–350,000 | CHRISTYS AUTO RENTALS INC | Johnston, RI | 1st Source Bank |
| $350,000–1 million | CHUCK JAQUA REALTORS INC. | PORTAGE, MI | 1st Source Bank |
| $150,000–350,000 | CHURCH PLUMBING & HEATING, INC. | ELKHART, IN | 1st Source Bank |
| $150,000–350,000 | CHURCH PLUMBING AND HEATING INC. | Elkhart, IN | 1st Source Bank |
| $350,000–1 million | CIM TECH INC | Valparaiso, IN | 1st Source Bank |
| $350,000–1 million | CITY PATTERN AND FOUNDRY COMPANY INC | GRANGER, IN | 1st Source Bank |
| $350,000–1 million | CITY PATTERN AND FOUNDRY COMPANY INC. | Granger, IN | 1st Source Bank |
| $350,000–1 million | CLEAN-SEAL INC | South Bend, IN | 1st Source Bank |
| $350,000–1 million | CLEAN-SEAL INC | SOUTH BEND, IN | 1st Source Bank |
| $150,000–350,000 | CMS ROOFING INC | FORT WAYNE, IN | 1st Source Bank |
| $150,000–350,000 | CNM ENTERPRISES INC | SODDY DAISY, TN | 1st Source Bank |
| $150,000–350,000 | CNM ENTERPRISES INC. | Soddy Daisy, TN | 1st Source Bank |
| $150,000–350,000 | COASTAL VALLEY WATER COMPANY | VALPARAISO, IN | 1st Source Bank |
| $150,000–350,000 | COE HEATING & AIR CONDITIONING, INC. | FORT WAYNE, IN | 1st Source Bank |
| $150,000–350,000 | COE HEATING AND AIR CONDITIONING INC. | Fort Wayne, IN | 1st Source Bank |
| $150,000–350,000 | COFFEL VENDING COMPANY | Mishawaka, IN | 1st Source Bank |
| $150,000–350,000 | COFFEL VENDING COMPANY | MISHAWAKA, IN | 1st Source Bank |
| $150,000–350,000 | COIT AVENUE GRAVEL CO INC | GRAND RAPIDS, MI | 1st Source Bank |
| $350,000–1 million | COMMERCIAL STRUCTURES OF INDIANA CORP | NAPPANEE, IN | 1st Source Bank |
| $350,000–1 million | COMMERCIAL STRUCTURES OF INDIANA CORP | Nappanee, IN | 1st Source Bank |