| $1–2 million | BLAZE MIDWEST, INC. | HOUGHTON LAKE, MI | Mercantile Bank |
| $150,000–350,000 | BLYSTONE & BAILEY CPA'S P.C. | Mount Pleasant, MI | Mercantile Bank |
| $150,000–350,000 | BLYSTONE & BAILEY, CPAS PC | MOUNT PLEASANT, MI | Mercantile Bank |
| $350,000–1 million | BOHNING COMPANY, LTD | LAKE CITY, MI | Mercantile Bank |
| $150,000–350,000 | BOSVELD INC | GRAND RAPIDS, MI | Mercantile Bank |
| $150,000–350,000 | BRALYN, INC. | GRAND HAVEN, MI | Mercantile Bank |
| $150,000–350,000 | BRECK GRAPHICS, INC. | GRAND RAPIDS, MI | Mercantile Bank |
| $150,000–350,000 | BRIAN'S FRUIT AND MEAT MARKET, INC | WEST BRANCH, MI | Mercantile Bank |
| $150,000–350,000 | BRIDGE VENTURE'S INC | GRAND RAPIDS, MI | Mercantile Bank |
| $150,000–350,000 | BRIDGE VENTURES INC. | Grand Rapids, MI | Mercantile Bank |
| $350,000–1 million | BRINK, KEY & CHLUDZINSKI, PC | PORTAGE, MI | Mercantile Bank |
| $350,000–1 million | BROOKS & PERKINS, INC. | CADILLAC, MI | Mercantile Bank |
| $150,000–350,000 | BROWN CUSTOM HOMES AND REMODELING INC | KALAMAZOO, MI | Mercantile Bank |
| $150,000–350,000 | BUDDY'S ON THE BEACH LLC | Lake Odessa, MI | Mercantile Bank |
| $150,000–350,000 | BUDDY'S ON THE BEACH LLC | LAKE ODESSA, MI | Mercantile Bank |
| $350,000–1 million | BUNTING SAND & GRAVEL PRODUCTS INC | WEST BRANCH, MI | Mercantile Bank |
| $150,000–350,000 | BYRUM FISK COMMINICATIONS LLC | EAST LANSING, MI | Mercantile Bank |
| $150,000–350,000 | C & S HOSPITALITY LLC | Okemos, MI | Mercantile Bank |
| $2–5 million | C*MAC TRANSPORTATION LLC | Brownstown, MI | Mercantile Bank |
| $5–10 million | CADILLAC CASTING, INC | CADILLAC, MI | Mercantile Bank |
| $150,000–350,000 | CADILLAC CULVERT, INC. | CADILLAC, MI | Mercantile Bank |
| $150,000–350,000 | CALEDONIA EXCAVATING INC | CALEDONIA, MI | Mercantile Bank |
| $150,000–350,000 | CANADIAN LAKES PROPERTY OWNERS CORPORATION | STANWOOD, MI | Mercantile Bank |
| $350,000–1 million | CARDINAL FABRICATING INC. | Williamston, MI | Mercantile Bank |
| $350,000–1 million | CARDINAL FABRICATING, INC. | WILLIAMSTON, MI | Mercantile Bank |
| $2–5 million | CARELINC MEDICAL EQUIPMENT & SUPPLY CO LLC | GRAND RAPIDS, MI | Mercantile Bank |
| $150,000–350,000 | CARNEVALE ID, CORP | GRAND RAPIDS, MI | Mercantile Bank |
| $350,000–1 million | CASCADE HOSPITAL FOR ANIMALS, PC | GRAND RAPIDS, MI | Mercantile Bank |
| $150,000–350,000 | CATHERINE'S HEALTH CENTER | GRAND RAPIDS, MI | Mercantile Bank |
| $150,000–350,000 | CB INDUSTRIAL LLC | New Hudson, MI | Mercantile Bank |
| $1–2 million | CEDAR CREST DAIRY INC | HUDSONVILLE, MI | Mercantile Bank |
| $150,000–350,000 | CELEBRATION BANQUETS L.L.C. | GRAND RAPIDS, MI | Mercantile Bank |
| $350,000–1 million | CENTRAL MICHIGAN INNS INC. | Okemos, MI | Mercantile Bank |
| $350,000–1 million | CENTRAL MICHIGAN INNS, INC. | OKEMOS, MI | Mercantile Bank |
| $150,000–350,000 | CENTRAL RESTORATION INC. | Clare, MI | Mercantile Bank |
| $150,000–350,000 | CENTRAL RESTORATION, INC. | CLARE, MI | Mercantile Bank |
| $150,000–350,000 | CENTRIC LABORATORIES INC | GRAND RAPIDS, MI | Mercantile Bank |
| $150,000–350,000 | CENTRIC LABORATORIES INC. | Grand Rapids, MI | Mercantile Bank |
| $150,000–350,000 | CENTURY LANES, INC. | Holland, MI | Mercantile Bank |
| $150,000–350,000 | CENTURY LANES, INC. | HOLLAND, MI | Mercantile Bank |
| $150,000–350,000 | CHERNARD & OSBORN, INC | ADA, MI | Mercantile Bank |
| $1–2 million | CHESTER LIMITED, INC. | ROCHESTER, MI | Mercantile Bank |
| $150,000–350,000 | CHEZ DALIDA LLC | East Lansing, MI | Mercantile Bank |
| $150,000–350,000 | CHEZ DALIDA, L.L.C. | EAST LANSING, MI | Mercantile Bank |
| $350,000–1 million | CHRISTIAN HOME SERVICES, INC. | MOUNT PLEASANT, MI | Mercantile Bank |
| $1–2 million | CLARK RETIREMENT COMMUNITY, INC. | GRAND RAPIDS, MI | Mercantile Bank |
| $350,000–1 million | CLASSIC DIE INC. | Grand Rapids, MI | Mercantile Bank |
| $150,000–350,000 | CLEAN LOGIX, LLC | GRAND RAPIDS, MI | Mercantile Bank |
| $1–2 million | CLEARGAGE, LLC | TAMPA, FL | Mercantile Bank |
| $150,000–350,000 | CLINTON COUNTY MEDICAL CENTER PSYCHOLOGICAL SERVICES PLLC | SAINT JOHNS, MI | Mercantile Bank |
| $150,000–350,000 | CLM VIBETECH, INC. | KALAMAZOO, MI | Mercantile Bank |
| $2–5 million | CMAC TRANSPORTATION LLC | BROWNSTOWN, MI | Mercantile Bank |
| $150,000–350,000 | COCO JOE'S BEACH HOUSE INC. | Mt Pleasant, MI | Mercantile Bank |
| $150,000–350,000 | COHL, STOKER & TOSKEY, P.C. | LANSING, MI | Mercantile Bank |
| $2–5 million | COLES QUALITY FOODS INC | GRAND RAPIDS, MI | Mercantile Bank |
| $150,000–350,000 | COLOR HOUSE GRAPHICS INC. | Grand Rapids, MI | Mercantile Bank |
| $150,000–350,000 | COLOR HOUSE GRAPHICS, INC. | GRAND RAPIDS, MI | Mercantile Bank |
| $350,000–1 million | COLUMBIAN DISTRIBUTION SERVICES, INC. | GRAND RAPIDS, MI | Mercantile Bank |
| $350,000–1 million | COMMUNITY REBUILDERS | GRAND RAPIDS, MI | Mercantile Bank |
| $150,000–350,000 | COMPLETE ENCLOSURES INC. | Mason, MI | Mercantile Bank |
| $150,000–350,000 | COMPLETE ENCLOSURES, INC. | MASON, MI | Mercantile Bank |
| $350,000–1 million | COMPONENT ENGINEERING SOLUTIONS LLC | Wyoming, MI | Mercantile Bank |
| $350,000–1 million | COMPONENT ENGINEERING SOLUTIONS, LLC | WYOMING, MI | Mercantile Bank |
| $350,000–1 million | CONCEPT TOOLING SYSTEMS | GRAND RAPIDS, MI | Mercantile Bank |
| $1–2 million | CONCRETE CUTTING & BREAKING CO | GRAND RAPIDS, MI | Mercantile Bank |
| $150,000–350,000 | CONGRESS COLLECTION LLC FKA SIDLE HOLDINGS LLC | EAST LANSING, MI | Mercantile Bank |
| $2–5 million | CONSUMERS CONCRETE CORPORATION | KALAMAZOO, MI | Mercantile Bank |
| $350,000–1 million | CONTRACT DEWATERING SERVICES INC. | Saranac, MI | Mercantile Bank |
| $350,000–1 million | CONTRACT DEWATERING SVC, INC. | SARANAC, MI | Mercantile Bank |
| $1–2 million | CONTROL SOLUTIONS INC. | WYOMING, MI | Mercantile Bank |
| $1–2 million | CONTROL SOLUTIONS, INC. | BYRON CENTER, MI | Mercantile Bank |
| $1–2 million | COPPERROCK CONSTRUCTION INC | Grand Rapids, MI | Mercantile Bank |
| $350,000–1 million | COPPERROCK CONSTRUCTION INC | GRAND RAPIDS, MI | Mercantile Bank |
| $150,000–350,000 | CREATIVE DAY TECHNOLOGIES, INC. | TROY, MI | Mercantile Bank |
| $150,000–350,000 | CREATIVE DAY TECHNOLOGIES, INC. | Troy, MI | Mercantile Bank |
| $2–5 million | CRYSTAL FLASH INC EMPLOYEE STOCK OWNERSHIP PLAN | GRAND RAPIDS, MI | Mercantile Bank |
| $2–5 million | CUP ACQUISITION LLC | Grand Rapids, MI | Mercantile Bank |
| $2–5 million | CUP AQUISITION, LLC | GRAND RAPIDS, MI | Mercantile Bank |
| $150,000–350,000 | CURTIS LAUNDRY & DRYCLEANERS, | LOWELL, MI | Mercantile Bank |
| $150,000–350,000 | CURTIS LAUNDRY AND DRY CLEANERS INC. | Lowell, MI | Mercantile Bank |
| $150,000–350,000 | CUSTOM CAULKING, INC. | MARNE, MI | Mercantile Bank |
| $350,000–1 million | CWD REAL ESTATE INVESTMENT L.L.C. | Grand Rapids, MI | Mercantile Bank |
| $350,000–1 million | CWD REAL ESTATE INVESTMENT LLC | GRAND RAPIDS, MI | Mercantile Bank |
| $150,000–350,000 | D & D WATER & SEWER INC. | Canton, MI | Mercantile Bank |
| $150,000–350,000 | D & D WATER & SEWER, INC. | CANTON, MI | Mercantile Bank |
| $350,000–1 million | D & R FABRICATION INC. | Belding, MI | Mercantile Bank |
| $350,000–1 million | D & R FABRICATION, INC. | BELDING, MI | Mercantile Bank |
| $350,000–1 million | D & R SPORTS CENTER, INC. | KALAMAZOO, MI | Mercantile Bank |
| $2–5 million | D&D BUILDING, INC | GRAND RAPIDS, MI | Mercantile Bank |
| $2–5 million | D. A. BLODGETT - ST. JOHN'S | GRAND RAPIDS, MI | Mercantile Bank |
| $2–5 million | D.A. BLODGETT - ST. JOHN'S | Grand Rapids, MI | Mercantile Bank |
| $150,000–350,000 | D.K. WEISS, HOLT & ASSOCIATES, PLLC | GRAND RAPIDS, MI | Mercantile Bank |
| $150,000–350,000 | DA REAL ESTATE CONSULTING, LLC | SOUTHFIELD, MI | Mercantile Bank |
| $350,000–1 million | DALE & MICHAEL CORPORATION | LANSING, MI | Mercantile Bank |
| $150,000–350,000 | DAMAR ENTERPRISES INC | Bay City, MI | Mercantile Bank |
| $150,000–350,000 | DART FROG CREATIVE LLC | GRAND RAPIDS, MI | Mercantile Bank |
| $2–5 million | DAVENPORT MASONRY INC. | Holt, MI | Mercantile Bank |
| $2–5 million | DAVENPORT MASONRY, INC | HOLT, MI | Mercantile Bank |
| $350,000–1 million | DBI HOLDING CO. | Lansing, MI | Mercantile Bank |
| $350,000–1 million | DBI HOLDING CO. | LANSING, MI | Mercantile Bank |