| $150,000–350,000 | WEST MICHIGAN COMMERCIAL PROPERTY ADVISORS, INC. | GRAND RAPIDS, MI | United Bank of Michigan |
| $150,000–350,000 | WEST MICHIGAN ENDODONTISTS | GRAND RAPIDS, MI | PNC Bank, National Association |
| $150,000–350,000 | WEST MICHIGAN EYECARE ASSOCIATES, PLLC | GRAND RAPIDS, MI | Grand River Bank |
| $150,000–350,000 | WEST MICHIGAN GAGE, INC. | GRAND RAPIDS, MI | Mercantile Bank of Michigan |
| $350,000–1 million | WEST MICHIGAN HOME CARE SERVICES INC | GRAND RAPIDS, MI | PNC Bank, National Association |
| $1–2 million | WEST MICHIGAN HORTICULTURAL SOCIETY, INC. | GRAND RAPIDS, MI | Macatawa Bank |
| $2–5 million | WEST MICHIGAN INTERNATIONAL, LLC | GRAND RAPIDS, MI | Macatawa Bank |
| $350,000–1 million | WEST MICHIGAN LIGHTING INC | GRAND RAPIDS, MI | PNC Bank, National Association |
| $150,000–350,000 | WEST MICHIGAN PARTNERSHIP FOR CHILDREN | GRAND RAPIDS, MI | Mercantile Bank of Michigan |
| $150,000–350,000 | WEST MICHIGAN PRECISION MACHINING INC | GRAND RAPIDS, MI | PNC Bank, National Association |
| $150,000–350,000 | WEST MICHIGAN REHAB, PLLC | GRAND RAPIDS, MI | Macatawa Bank |
| $1–2 million | WEST MICHIGAN SHARED HOSPITAL LAUNDRY | GRAND RAPIDS, MI | Comerica Bank |
| $350,000–1 million | WEST SIDE CHRISTIAN SCHOOL | GRAND RAPIDS, MI | Mercantile Bank of Michigan |
| $350,000–1 million | WEST THOMAS PARTNERS, LLC | GRAND RAPIDS, MI | Comerica Bank |
| $150,000–350,000 | WEST WALKER STEEL COMPANY | GRAND RAPIDS, MI | Old National Bank |
| $150,000–350,000 | WESTERN MICHIGAN BONE AND JOINT SURGEONS, P.C. | GRAND RAPIDS, MI | Fifth Third Bank |
| $150,000–350,000 | WESTERN MICHIGAN PEDIATRICS, P.C. | GRAND RAPIDS, MI | Grand River Bank |
| $350,000–1 million | WESTMINSTER PRESBYTERIAN CHURCH | GRAND RAPIDS, MI | TCF National Bank |
| $150,000–350,000 | WHEELER UPHAM, PC | GRAND RAPIDS, MI | Mercantile Bank of Michigan |
| $350,000–1 million | WHISKERS PET RESORT AND SPA INC | GRAND RAPIDS, MI | JPMorgan Chase Bank, National Association |
| $150,000–350,000 | WHITSON INSULATION COMPANY OF GRAND RAPIDS INC. | GRAND RAPIDS, MI | The Huntington National Bank |
| $350,000–1 million | WIL-KAST, INC | GRAND RAPIDS, MI | West Michigan Community Bank |
| $150,000–350,000 | WILDLIFE REAL ESTATE LLC | GRAND RAPIDS, MI | TCF National Bank |
| $350,000–1 million | WILLIAM B. EERDMANS PUBLISHING COMPANY | GRAND RAPIDS, MI | Macatawa Bank |
| $350,000–1 million | WILLIAMS & WORKS, INC. | GRAND RAPIDS, MI | Macatawa Bank |
| $5–10 million | WILLIAMS DISTRIBUTING CO. | GRAND RAPIDS, MI | The Huntington National Bank |
| $350,000–1 million | WILLIAMS GROUP, INC. | GRAND RAPIDS, MI | Fifth Third Bank |
| $150,000–350,000 | WINCHESTER ON WEALTHY | GRAND RAPIDS, MI | Old National Bank |
| $150,000–350,000 | WINNERS BRAND CORPORATE MKTING INTL | GRAND RAPIDS, MI | The Huntington National Bank |
| $350,000–1 million | WITTE ASSOCIATES, INC. | GRAND RAPIDS, MI | First National Bank of Michigan |
| $150,000–350,000 | WIZ WHEELZ, INC. | GRAND RAPIDS, MI | Union Bank |
| $150,000–350,000 | WMIB, INC. | GRAND RAPIDS, MI | Consumers CU |
| $2–5 million | WOLVERINE BUILDING GROUP INC | GRAND RAPIDS, MI | The Huntington National Bank |
| $350,000–1 million | WOLVERINE COIL SPRING COMPANY | GRAND RAPIDS, MI | Macatawa Bank |
| $350,000–1 million | WOLVERINE CRANE & SERVICE, INC | GRAND RAPIDS, MI | The Huntington National Bank |
| $350,000–1 million | WOLVERINE GAS AND OIL CORPORATION | GRAND RAPIDS, MI | TCF National Bank |
| $150,000–350,000 | WOLVERINE SPECIAL TOOL | GRAND RAPIDS, MI | ChoiceOne Bank |
| $150,000–350,000 | WOODCHUCK ENTERPRISES, LLC | GRAND RAPIDS, MI | Mercantile Bank of Michigan |
| $150,000–350,000 | WOODLAND TRAVEL CENTER, INC. | GRAND RAPIDS, MI | Mercantile Bank of Michigan |
| $150,000–350,000 | WORDS OF HOPE INC. | GRAND RAPIDS, MI | The Huntington National Bank |
| $5–10 million | WORKBOX STAFFING LLC | GRAND RAPIDS, MI | Mercantile Bank of Michigan |
| $1–2 million | WORKBOX STAFFING SC, LLC | GRAND RAPIDS, MI | Mercantile Bank of Michigan |
| $150,000–350,000 | XTREME DEMOLITION, INC. | GRAND RAPIDS, MI | United Bank of Michigan |
| $150,000–350,000 | YOUCAN,LLC | GRAND RAPIDS, MI | Fifth Third Bank |
| $350,000–1 million | YOUNGBLOOD AIR SYSTEMS LLC | GRAND RAPIDS, MI | TCF National Bank |
| $350,000–1 million | YWCA WEST CENTRAL MICHIGAN | GRAND RAPIDS, MI | Mercantile Bank of Michigan |
| $350,000–1 million | ZEICHMAN MFG INC | GRAND RAPIDS, MI | Macatawa Bank |
| $150,000–350,000 | ZINGER SHEET METAL CO | GRAND RAPIDS, MI | The Huntington National Bank |