| $150,000–350,000 | W.E. SLITT COMPANY | THREE RIVERS, MI | Northwest Bank |
| $150,000–350,000 | W.P. DOTSON INC. | ERIE, PA | Northwest Bank |
| $150,000–350,000 | W.S. BUNCH COMPANY, INC. | OMAHA, NE | Northwest Bank |
| $350,000–1 million | WAIT INDUSTRIES LLC | ELKHART, IN | Northwest Bank |
| $150,000–350,000 | WAKESIDE MARINE, LLC | ELKHART, IN | Northwest Bank |
| $1–2 million | WALSH DOOR AND HARDWARE CO | DES MOINES, IA | Northwest Bank |
| $5–10 million | WALSH TRUCKING CO., LTD | TROUTDALE, OR | Northwest Bank |
| $150,000–350,000 | WALTER PIANO TRANSPORT, INC | ELKHART, IN | Northwest Bank |
| $350,000–1 million | WARNER CONSTRUCTION INC. | BOISE, ID | Northwest Bank |
| $350,000–1 million | WARREN MIDTOWN MOTORS, INC. | WARREN, PA | Northwest Bank |
| $350,000–1 million | WARSAW COMMUNITY CHURCH | WARSAW, IN | Northwest Bank |
| $150,000–350,000 | WASHINGTON COMMUNITIES HUMAN SERVICES, INC | WASHINGTON, PA | Northwest Bank |
| $350,000–1 million | WASHINGTON LIFTRUCK INC | SEATTLE, WA | Northwest Bank |
| $350,000–1 million | WASSON NURSERY , INC. | MUNCIE, IN | Northwest Bank |
| $150,000–350,000 | WATSON MEMORIAL HOME | WARREN, PA | Northwest Bank |
| $350,000–1 million | WE WEST TEXAS TOWCO LLC | SHEFFIELD, TX | Northwest Bank |
| $150,000–350,000 | WEAVER MEMORIALS, INC. | NEW HOLLAND, PA | Northwest Bank |
| $350,000–1 million | WEBSTER CITY RV, INC. | WEST DES MOINES, IA | Northwest Bank |
| $150,000–350,000 | WEISS EARLY LANDSCAPE DESIGN AND CONTRACTING, LLC | FAIRVIEW, PA | Northwest Bank |
| $350,000–1 million | WELL VERSED OILFIELD SERVICES | WELLSBORO, PA | Northwest Bank |
| $150,000–350,000 | WEST RIDGE FAMILY DENTAL, PC | ERIE, PA | Northwest Bank |
| $350,000–1 million | WESTERN NEW YORK DERMATOLOGY, PLLC | BUFFALO, NY | Northwest Bank |
| $150,000–350,000 | WESTWOOD COMMUNITY CHURCH | OMAHA, NE | Northwest Bank |
| $150,000–350,000 | WETZEL INSURANCE AGENCY, INC | NORTH MANCHESTER, IN | Northwest Bank |
| $1–2 million | WHIMET, INC. | WARSAW, IN | Northwest Bank |
| $2–5 million | WHIRLEY INDUSTRIES, INC | WARREN, PA | Northwest Bank |
| $350,000–1 million | WHISKEY CREEK PAYROLL, LLC | LAWTON, IA | Northwest Bank |
| $350,000–1 million | WHITING COMMERCIAL DEVELOPMENT CORP | WHITING, IA | Northwest Bank |
| $350,000–1 million | WHITINGER & COMPANY LLC | MUNCIE, IN | Northwest Bank |
| $150,000–350,000 | WIDEWATERS VICTOR COMPANY LLC | VICTOR, NY | Northwest Bank |
| $350,000–1 million | WIESE INDUSTRIES, INC. | PERRY, IA | Northwest Bank |
| $150,000–350,000 | WILDLIFE SPECIALISTS, LLC | WELLSBORO, PA | Northwest Bank |
| $150,000–350,000 | WILE PLUMBING, INC. | LANCASTER, PA | Northwest Bank |
| $150,000–350,000 | WILKINSON EXCAVATING, INC. | MEADVILLE, PA | Northwest Bank |
| $150,000–350,000 | WILLIAM SOPKO AND SONS CO INC | EUCLID, OH | Northwest Bank |
| $350,000–1 million | WILLIAMS & COMPANY CPA PC | SIOUX CITY, IA | Northwest Bank |
| $150,000–350,000 | WILLIAMS BROTHERS BUILDERS, INC. | ELYRIA, OH | Northwest Bank |
| $150,000–350,000 | WILLIAMS, MOLITERNO & SCULLY CO., L.P.A. | CLEVELAND, OH | Northwest Bank |
| $150,000–350,000 | WILLIG DENTISTRY | WARSAW, IN | Northwest Bank |
| $150,000–350,000 | WILSON ENGINEERING SERVICES, PC | MEADVILLE, PA | Northwest Bank |
| $150,000–350,000 | WILTFONG MOVING & STORAGE, INC. | MISHAWAKA, IN | Northwest Bank |
| $150,000–350,000 | WIXTED INC | WEST DES MOINES, IA | Northwest Bank |
| $350,000–1 million | WNY KNEE AND ORTHOPEDIC SURGERY, P.C. | WILLIAMSVILLE, NY | Northwest Bank |
| $150,000–350,000 | WOLF DIVERSIFIED, INC. | SPIRIT LAKE, IA | Northwest Bank |
| $150,000–350,000 | WONDER PLUMBING INC | OMAHA, NE | Northwest Bank |
| $150,000–350,000 | WOODCOX BUILDING CONTRACTOR, INC | SOUTH BEND, IN | Northwest Bank |
| $150,000–350,000 | WOODLAND CONTRACTORS, INC. | LEBANON, PA | Northwest Bank |
| $150,000–350,000 | WOOLY INC | LEHI, UT | Northwest Bank |
| $150,000–350,000 | WORLDWIDE INDUSTRIES INC | BUTLER, PA | Northwest Bank |
| $350,000–1 million | X-CELL TOOL AND MOLD INC | FAIRVIEW, PA | Northwest Bank |
| $350,000–1 million | YORK P. B. TRUSS, INC. | YORK, PA | Northwest Bank |
| $350,000–1 million | YOUN MENS CHRISTIAN ASSOCIATION OF FRANKLIN AND GROVE CITY | FRANKLIN, PA | Northwest Bank |
| $150,000–350,000 | YOUNG DEVELOPMENT, INC. | ELMA, NY | Northwest Bank |
| $350,000–1 million | YOUNG MEN'S CHRISTIAN ASSOCIATION OF JAMESTOWN, NY | JAMESTOWN, NY | Northwest Bank |
| $150,000–350,000 | YOUNG MEN'S CHRISTIAN ASSOCIATION OF WARREN PA | BROOKVILLE, PA | Northwest Bank |
| $150,000–350,000 | YOUNG MENS CHRISTIAN ASSOCIATION OF CORRY, PENNSYLVANIA | CORRY, PA | Northwest Bank |
| $150,000–350,000 | YOUNG WOMEN'S CHRISTIAN ASSOCIATION OF BRADFORD, INC. | BRADFORD, PA | Northwest Bank |
| $350,000–1 million | YOUR OWN HOME, INC. | JEFFERSON HILLS, PA | Northwest Bank |
| $150,000–350,000 | ZDARSKY, SAWICKI & AGOSTINELLI LLP | BUFFALO, NY | Northwest Bank |