W
| W. Haut Specialty Company | Menomanee Falls |
| WAGO Corporation | Germantown |
| Wakeman Equipment Sales, Inc. | Brown Deer |
| Wald Wire & Manufacturing Co. | Oshkosh |
| Waldbillig & Besteman, Inc. | Madison |
| Walker Equiptment | New Lisbon |
| WalMart | Milwaukee |
| Walters Buildings | Allenton |
| Ward-Brodt | Madison |
| Warren Industries, Inc. | Racine |
| Wasco | Milwaukee |
| Waukesha Cherry-Burrell | Delavan |
| Waukesha Foundry, Inc. | Waukesha |
| Waupaca Foundry, Inc. | Waupaca |
| Wausau Paper Mills Co. | Wausau |
| Wausau Tile, Inc. | Wausau |
| Wausau-Mosinee Paper Corp | Mosinee |
| Wauwatosa Savings Bank | Wauwatosa |
| WCLO Radio | Janesville |
| Weas Development | Milwaukee |
| Weasler Engineering, Inc. | West Bend |
| WebBaton | Middleton |
| Webcom Inc. | Milwaukee |
| WebProjkt, Inc. | Madison |
| Webster Instruments | Milwaukee |
| WebWise Design & Marketing | Fennimore |
| We-Energies | Milwaukee |
| Wegner LLP | Madison |
| Weiss Berzowski Brady LLP | Milwaukee |
| Weiss Environmental Technology Inc. | Menomonee Falls |
| WEL Companies, Inc. | De Pere |
| Weller Machinery Company | Pewaukee |
| Wenniger Company | New Berlin |
| The West Bend Co. | West Bend |
| Westaff Services | Wauwatosa |
| Westermo US | New Berlin |
| Western Industries, Inc. | Milwaukee |
| Wetzel Brothers, Inc. | Cudahy |
| Weyco Group Inc | Milwaukee |
| Whimway Com Systems | Beloit |
| Whitaker Works LLC | Milwaukee |
| Whitewater Marketing Services LLC | Whitewater |
| whoshome.com | Madison |
| Whyte Hirschboeck Dudek S.C. | Milwaukee |
| Wick Building Systems, Inc. | Mezomanie |
| Widen Enterprises, Inc. | Madison |
| Wildeck | Waukesha |
| Wild Promotions Inc. | New Berlin |
| Wilke Realty, LLC | Allenton |
| Williams Young, LLC | Madison |
| Wingra Engineering, S.C. | Madison |
| Wingra Technologies, Inc. | Madison |
| Winter, Kloman, Moter & Repp | Oconomowoc |
| Wipfli Ullrich Bertelson LLP | Milwaukee |
| WireTech Fabricators, Inc. | Sturgeon |
| WisBusiness.com | Madison |
| WISC TV 3 | Madison |
| Wiscomp Systems Inc | Waukesha |
| Wisconsin Aluminum Foundry Co., Inc. | Manitowoc |
| Wisconsin Aviation, Inc. | Watertown |
| Wisconsin Bench | Thorp |
| Wisconsin Bimetallic Corp. | Sullivan |
| Wisconsin Box Co. | Wausau |
| Wisconsin Brick & Block Corp. | Madison |
| Wisconsin Child Care | Green Bay |
| Wisconsin Clock Company, Inc. | Clintonville |
| Wisconsin Coil Spring, Inc. | Muskego |
| Wisconsin Concrete Products, Inc. | Kiel |
| Wisconsin Converting, Inc. | Green Bay |
| Wisconsin Corporate Central Credit Union | Hales Corners |
| Wisconsin Drapery Supply, Inc. | Pewaukee |
| Wisconsin Energy Corp | Milwaukee |
| Wisconsin Engraving Co. | New Berlin |
| Wisconsin EPS | Fond du Lac |
| Wisconsin Express Lines, Inc. | De Pere |
| Wisconsin Fabricating Co. | Green Bay |
| Wisconsin Gas Company | Sun Prairie |
| Wisconsin Grocers Association | Madison |
| Wisconsin Health Insurance Network | Brookfield |
| Wisconsin Logistics, Inc. | Darien |
| Wisconsinmade.com | Madison |
| Wisconsin Marketing Services Inc. | Milwaukee |
| Wisconsin Oven Corp. | East Troy |
| Wisconsin Paper | Wauwatosa |
| Wisconsin Power Control, Inc. | Madison |
| Wisconsin Public Radio | Madison |
| Wisconsin Public Television | Madison |
| Wisconsin Scottish Rite Foundation Inc. | Milwaukee |
| Wisconsin Stamping Co., Inc. | Butler |
| Wisconsin Valley Concrete Products Co. | Wisconsin Rapids |
| Wiscraft, Inc. | Milwaukee |
| WisLogistics, Inc. | New Berlin |
| Wisniewski Law Office | Milwaukee |
| WisPark LLC | Pleasant Prairie |
| WisPolitics.com | Madison |
| Wiswell Group | Madison |
| WITI Fox 6 | Milwaukee |
| Wixon Fontarome, Inc. | St. Francis |
| WJJO 94.1 FM | Madison |
| WJVL 99.9 FM | Janesville |
| WKOW-TV | Madison |
| WMGN 98.1 FM (Magic 98) | Madison |
| WMTV “NBC 15” | Madison |
| Wojdula & Associates, Ltd. | Whitewater |
| Wood Communications Group | Madison |
| Woodland Communications, Inc. | Madison |
| Woodland Realty | Washburn |
| The Workforce Development Center | Pewaukee |
| WorkWise, Inc. | Milwaukee |
| World Wide Connections | Madison |
| World Wide Digital | Sussex |
| WORT Radio 89.9 FM | Madison |
| The Worth Company | Stevens Point |
| WPS Resources Corp | Green Bay |
| WPXE TV 55 – PAX | Milwaukee |
| The Write Place | Milwaukee |
| Wrought Washer Mfg., Inc. | Milwaukee |
| WTDY 1670 AM | Madison |
X
| Xact Wire E.D.M. Corp. | Waukesha |
| Xcel Energy Corp | Minneapolis, MN |
| Xorbix Technologies, Inc. | Milwaukee |
| Xpanded Label Technology LLC | Appleton |
http://www.xymox.com/ | Milwaukee |
Y
| Yahara Software | Madison |
| Yale Equipment and Services | Menomonee Falls |
| Young Touchstone A Wabtec Co. | Racine |
| Your Gifts of Choice | Muskego |
Z
| Zeitgeist Consulting | Madison |
| Zenith Sintered Products, Inc. | Germantown |
| Zenith Tech, Inc. | Waukesha |
| Zentley & Cohn, S.C., Attorneys at Law | Milwaukee |
| Zeppos & Associates Inc. | Milwaukee |
| Ziegler & Companies | Milwaukee |
| Zigman, Joseph & Stevenson | |
| Zillges Materials Inc. | Oshkosh |
| Zillman Advertising and Marketing | Madison |
| The Zimmerman Design Group | Milwaukee |
| Zinga Industries | Madison |
| Zizzo Group Advertising | Milwaukee |
