| $350,000–1 million | MAITLAND ENGINEERING INC | SOUTH BEND, IN | 1st Source Bank |
| $150,000–350,000 | MAMO TRANSPORTATION INC | OSCEOLA, IN | 1st Source Bank |
| $150,000–350,000 | MAMO TRANSPORTATION INC. | Osceola, IN | 1st Source Bank |
| $150,000–350,000 | MARKET FRESH GOURMET INC | Mishawaka, IN | 1st Source Bank |
| $150,000–350,000 | MARKET FRESH GOURMET, INC. | MISHAWAKA, IN | 1st Source Bank |
| $350,000–1 million | MARQUISS ELECTRIC INC | Michigan City, IN | 1st Source Bank |
| $350,000–1 million | MARQUISS ELECTRIC, INC. | MICHIGAN CITY, IN | 1st Source Bank |
| $350,000–1 million | MARSHALL-STARKE DEVELOPMENT CENTER | PLYMOUTH, IN | 1st Source Bank |
| $1–2 million | MARTIN & COMPANY EXCAVATING | OREGON, IL | 1st Source Bank |
| $150,000–350,000 | MAVRON, INC. | Warsaw, IN | 1st Source Bank |
| $150,000–350,000 | MAVRON, INC. | WARSAW, IN | 1st Source Bank |
| $350,000–1 million | MAY OBERFELL AND LORBER | MISHAWAKA, IN | 1st Source Bank |
| $350,000–1 million | MAY OBERFELL LORBER | Mishawaka, IN | 1st Source Bank |
| $150,000–350,000 | MCDANIELS CYCLES, INC. | SOUTH BEND, IN | 1st Source Bank |
| $150,000–350,000 | MCDONALD CARTER CORP | WARSAW, IN | 1st Source Bank |
| $150,000–350,000 | MCINTOSH ENERGY COMPANY INC | Fort Wayne, IN | 1st Source Bank |
| $150,000–350,000 | MCINTOSH ENERGY COMPANY, INC | FORT WAYNE, IN | 1st Source Bank |
| $350,000–1 million | MCLAUGHLIN SERVICES LLC | Avilla, IN | 1st Source Bank |
| $350,000–1 million | MCLAUGHLIN SERVICES, LLC | AVILLA, IN | 1st Source Bank |
| $150,000–350,000 | MCMANN ELECTRIC INC | OSCEOLA, IN | 1st Source Bank |
| $2–5 million | MDD INC | Commerce City, CO | 1st Source Bank |
| $2–5 million | MDD, INC | COMMERCE CITY, CO | 1st Source Bank |
| $150,000–350,000 | MED INC | Chesterton, IN | 1st Source Bank |
| $150,000–350,000 | MEISE CONSTRUCTION INC | Sauk City, WI | 1st Source Bank |
| $150,000–350,000 | MET-PAK SPECIALTIES CORPORATION | Fort Wayne, IN | 1st Source Bank |
| $150,000–350,000 | MET-PAK SPECIALTIES, CORPORATION | FORT WAYNE, IN | 1st Source Bank |
| $150,000–350,000 | MEYER GLASS & MIRROR CO. INC. | Michigan City, IN | 1st Source Bank |
| $150,000–350,000 | MEYER GLASS & MIRROR CO., INC. | MICHIGAN CITY, IN | 1st Source Bank |
| $150,000–350,000 | MGE WHOLESALE INC. | SOUTH BEND, IN | 1st Source Bank |
| $350,000–1 million | MICHIANA CONTRACTING INC | PLYMOUTH, IN | 1st Source Bank |
| $350,000–1 million | MICHIANA GLOBAL MOLD LLC | Mishawaka, IN | 1st Source Bank |
| $350,000–1 million | MICHIANA GLOBAL MOLD LLC | MISHAWAKA, IN | 1st Source Bank |
| $150,000–350,000 | MICHIANA HEATING & AIR CONDITIONING INC | Niles, MI | 1st Source Bank |
| $150,000–350,000 | MICHIANA PUBLIC BROADCASTING CORPORATION | SOUTH BEND, IN | 1st Source Bank |
| $350,000–1 million | MICHIANA SHEET METAL LLC | MISHAWAKA, IN | 1st Source Bank |
| $150,000–350,000 | MICHIANA SPINE, SPORTS, & OCCUPATIONAL REHAB PC | MISHAWAKA, IN | 1st Source Bank |
| $150,000–350,000 | MID STATES CONSTRUCTION INC | ELKHART, IN | 1st Source Bank |
| $1–2 million | MID-CITY SUPPLY CO, INC | ELKHART, IN | 1st Source Bank |
| $150,000–350,000 | MIDDLEBURY COMMUNITY CHURCH INC. | GOSHEN, IN | 1st Source Bank |
| $2–5 million | MIDLAND ENGINEERING COMPANY INC | South Bend, IN | 1st Source Bank |
| $2–5 million | MIDLAND ENGINEERING COMPANY INC. | SOUTH BEND, IN | 1st Source Bank |
| $150,000–350,000 | MIDWEST SALES AND SERVICE INC. | SOUTH BEND, IN | 1st Source Bank |
| $350,000–1 million | MIDWEST TILE & INTERIORS | MISHAWAKA, IN | 1st Source Bank |
| $350,000–1 million | MIDWEST TILE AND INTERIORS INC. | Mishawaka, IN | 1st Source Bank |
| $150,000–350,000 | MIDWEST TURBINE SERVICE LLC | HARTFORD, WI | 1st Source Bank |
| $150,000–350,000 | MIDWEST WHEELCOATERS, LLC | MICHIGAN CITY, IN | 1st Source Bank |
| $350,000–1 million | MIKE'S CUSTOM PAINTING INC | BREMEN, IN | 1st Source Bank |
| $350,000–1 million | MILLENNIUM MACHINERY INC | South Bend, IN | 1st Source Bank |
| $350,000–1 million | MILLENNIUM MACHINERY, INC | SOUTH BEND, IN | 1st Source Bank |
| $150,000–350,000 | MISHAWAKA CATHOLIC SCHOOL | MISHAWAKA, IN | 1st Source Bank |
| $350,000–1 million | MISHAWAKA DOOR LLC | MISHAWAKA, IN | 1st Source Bank |
| $150,000–350,000 | MISHHOME, LLC | MERRILLVILLE, IN | 1st Source Bank |
| $350,000–1 million | MITO CORPORATION | ELKHART, IN | 1st Source Bank |
| $150,000–350,000 | MITO CORPORATION | Elkhart, IN | 1st Source Bank |
| $150,000–350,000 | MOBILE MATERIALS, LLC | North Las Vegas, NV | 1st Source Bank |
| $150,000–350,000 | MODULAR TECHNICAL SERVICE INC | Elkhart, IN | 1st Source Bank |
| $150,000–350,000 | MODULAR TECHNICAL SERVICE, INC. | ELKHART, IN | 1st Source Bank |
| $150,000–350,000 | MONARCH TEXTILES RENTAL SERVICES | SOUTH BEND, IN | 1st Source Bank |
| $1–2 million | MONEYMAILERUSA INCORPORATED | Rolling Meadows, IL | 1st Source Bank |
| $1–2 million | MONEYMAILERUSA INCORPORATED | ROLLING MEADOWS, IL | 1st Source Bank |
| $5–10 million | MOR/RYDE INTERNATIONAL, INC. | ELKHART, IN | 1st Source Bank |
| $150,000–350,000 | MORNING VIEW ASSISTED LIVING LLC | Skokie, IL | 1st Source Bank |
| $150,000–350,000 | MORNING VIEW ASSISTED LIVING LLC | SKOKIE, IL | 1st Source Bank |
| $1–2 million | MOSHAY INC | Vernon, CA | 1st Source Bank |
| $1–2 million | MOSHAY INC. | LOS ANGELES, CA | 1st Source Bank |
| $1–2 million | MOSSBERG & COMPANY INC | SOUTH BEND, IN | 1st Source Bank |
| $150,000–350,000 | MUDLOVE,LLC | WARSAW, IN | 1st Source Bank |
| $1–2 million | MURKS VILLAGE MARKET INC | SOUTH HAVEN, MI | 1st Source Bank |
| $150,000–350,000 | MURRAY AND MAZUR DENTAL PARTNERSHIP | LAFAYETTE, IN | 1st Source Bank |
| $150,000–350,000 | MURRAY AND MAZUR DENTAL PARTNERSHIP | Lafayette, IN | 1st Source Bank |
| $150,000–350,000 | NANOVIS, LLC | COLUMBIA CITY, IN | 1st Source Bank |
| $150,000–350,000 | NATIONAL CONSOLIDATED CORPORATION | South Bend, IN | 1st Source Bank |
| $150,000–350,000 | NATIONAL CONSOLIDATED CORPORATION | SOUTH BEND, IN | 1st Source Bank |
| $350,000–1 million | NATIONAL ELECTRIC LLC | South Bend, IN | 1st Source Bank |
| $350,000–1 million | NATIONAL ELECTRIC, LLC | SOUTH BEND, IN | 1st Source Bank |
| $150,000–350,000 | NATIONWIDE JANITORIAL SERVICE INC. | MISHAWAKA, IN | 1st Source Bank |
| $150,000–350,000 | NAVARRE HOSPITALITY GROUP LLC | South Bend, IN | 1st Source Bank |
| $150,000–350,000 | NAVARRE HOSPITALITY GROUP LLC | South Bend, IN | 1st Source Bank |
| $150,000–350,000 | ND PUB LLC | South Bend, IN | 1st Source Bank |
| $150,000–350,000 | ND PUB LLC | South Bend, IN | 1st Source Bank |
| $150,000–350,000 | NEIGHBORS EDUCATIONAL OPPORTUNITIES INC | Portage, IN | 1st Source Bank |
| $150,000–350,000 | NEIGHBORS EDUCATIONAL OPPORTUNITIES, INC. | PORTAGE, IN | 1st Source Bank |
| $350,000–1 million | NELSON EQUIPMENT LTD | Baytown, TX | 1st Source Bank |
| $350,000–1 million | NELSON EQUIPMENT LTD | Baytown, TX | 1st Source Bank |
| $350,000–1 million | NELSONS INC | Wakarusa, IN | 1st Source Bank |
| $350,000–1 million | NELSONS INC | WAKARUSA, IN | 1st Source Bank |
| $150,000–350,000 | NEOTI, LLC | BLUFFTON, IN | 1st Source Bank |
| $350,000–1 million | NEPHROLOGY PHYSICIANS LLC | MISHAWAKA, IN | 1st Source Bank |
| $1–2 million | NETWORK PACKAGING GROUP LLC | WARSAW, IN | 1st Source Bank |
| $150,000–350,000 | NEW WESTERN LLC | GLENDALE, AZ | 1st Source Bank |
| $150,000–350,000 | NEXGEN GROUP INC | NAPPANEE, IN | 1st Source Bank |
| $1–2 million | NEXTREMITY SOLUTIONS INC | Warsaw, IN | 1st Source Bank |
| $1–2 million | NEXTREMITY SOLUTIONS INC. | WARSAW, IN | 1st Source Bank |
| $1–2 million | NEXUS RVS LLC | Elkhart, IN | 1st Source Bank |
| $350,000–1 million | NEXUS RVS LLC | Elkhart, IN | 1st Source Bank |
| $150,000–350,000 | NGMG LLC | BREMEN, IN | 1st Source Bank |
| $1–2 million | NIBLOCK EXCAVATING | BRISTOL, IN | 1st Source Bank |
| $150,000–350,000 | NICK'S PATIO INC | SOUTH BEND, IN | 1st Source Bank |
| $150,000–350,000 | NICKS PATIO INC | South Bend, IN | 1st Source Bank |
| $350,000–1 million | NIEMEYER MILK TRANSFER, INC. | CEDAR LAKE, IN | 1st Source Bank |