| Wye Electric Company, Inc. | | | labor relations violation | 2012 | $150,000 |
| Wyckoff Heights Medical Center | | | labor relations violation | 2006 | $24,500 |
| Wyckoff Heights Medical Center | | | labor relations violation | 2006 | $17,562 |
| Wyatt Field Service Company | | | labor relations violation | 2011 | $112,000 |
| Wyatt | | | labor relations violation | 2009 | $34,317 |
| Wyandanch Day Care Center, Inc. | | | labor relations violation | 2000 | $18,000 |
| WXGI Radio - AM 950 | | | labor relations violation | 2002 | $47,500 |
| WWF Operating Company d/b/a WhiteWave Foods | Danone | food products | labor relations violation | 2015 | $40,000 |
| WVHCS-Hospital | | | labor relations violation | 2003 | $20,000 |
| WUBE (CBS BROADCASTING INC.) | | | labor relations violation | 2003 | $6,689 |
| WRS Environmental Services, Inc. | | | labor relations violation | 2016 | $37,699 |
| Writers Guild of America, West, Inc. | | | labor relations violation | 2002 | $8,000 |
| WRIGHT TRAFFIC CONTROL, INC. | | | labor relations violation | 2019 | $13,144 |
| Wright Electrical Contracting Inc. | | | labor relations violation | 2000 | $18,500 |
| Wright Electric, Inc. | | | labor relations violation | 2002 | $6,059 |
| Wrico Stamping | | | labor relations violation | 2006 | $12,109 |
| Wrayco Industries | | | labor relations violation | 2008 | $5,000 |
| Wrangell Seafoods, Inc. | | | labor relations violation | 2009 | $47,270 |
| WPHG Daufuskie Human Resources, LLC, a wholly-owned subsidiary of The West Paces Hotel Group, LLC, e | | | labor relations violation | 2011 | $136,398 |
| Wozeiak Industries | | | labor relations violation | 2010 | $23,310 |
| Wound Care Advantage | | | labor relations violation | 2017 | $6,253 |
| Worth & Company, Inc. | | | labor relations violation | 2006 | $12,000 |
| Worley Distribution Services, Inc. | | | labor relations violation | 2005 | $8,400 |
| Worley Distribution Services, Inc. | | | labor relations violation | 2003 | $12,000 |
| Worldwide Food Products, Inc | | | labor relations violation | 2001 | $21,000 |
| WorldPoint Interactive Inc. | | | labor relations violation | 2001 | $14,000 |
| World Waste Services Inc. | | | labor relations violation | 2004 | $52,140 |
| World Technical Services, Inc. | | | labor relations violation | 2002 | $7,043 |
| World S S, Inc. | | | labor relations violation | 2003 | $116,820 |
| World Kitchen, Inc. | Cornell Capital | private equity (including portfolio companies) | labor relations violation | 2004 | $6,900 |
| World Journal | | | labor relations violation | 2004 | $5,259 |
| World Duty Free Group LLC, N.A. | | | labor relations violation | 2016 | $10,586 |
| World Duty Free America | | | labor relations violation | 2002 | $14,100 |
| World Class Processing, Inc. | | | labor relations violation | 2000 | $12,500 |
| World Class Plastics, Inc. | | | labor relations violation | 2016 | $17,400 |
| World Class Industries, Inc. | | | labor relations violation | 2012 | $26,000 |
| World Class Demolition Corporation and New World Interior Cleanout Services Inc., a Single Employer | | | labor relations violation | 2017 | $6,308 |
| World Class Corrugating, LLC | | | labor relations violation | 2014 | $120,000 |
| Workroom for Designers, Inc. and Sidney H. Sisselman | | | labor relations violation | 2000 | $40,666 |
| Workmen's Circle MultiCare Center | | | labor relations violation | 2008 | $10,500 |
| Workers Organizing Committee of Chicago | | | labor relations violation | 2017 | $23,058 |
| Work Connections International, LLC | | | labor relations violation | 2018 | $11,424 |
| Woonsocket Call d/b/a Evening Call Publishing Co. | | | labor relations violation | 2000 | $27,993 |
| Woods Services, Inc. | | | labor relations violation | 2001 | $12,000 |
| Woodlawn, Inc. | | | labor relations violation | 2003 | $8,912 |
| Woodlawn Memorial Park-Dignity Memorial-SCI, Houston, Texas | | | labor relations violation | 2010 | $6,023 |
| Woodlands of Oconto | | | labor relations violation | 2007 | $6,138 |
| Woodland Terrace of Citrus County | | | labor relations violation | 2005 | $7,673 |
| Woodland Acres Inc. & Woodland Acres Garden Center | | | labor relations violation | 2007 | $14,000 |
| Woodfield Ford Collision Center | | | labor relations violation | 2003 | $20,000 |
| WOODCREST HEALTH CARE CENTER | | | labor relations violation | 2020 | $79,316 |
| Woodbridge Corporation | | | labor relations violation | 2005 | $8,770 |
| Wood Trucking Company | | | labor relations violation | 2012 | $25,028 |
| Wood Dining Service, Division of Sodexho | | | labor relations violation | 2005 | $10,720 |
| Wondra Excavating, Inc. | | | labor relations violation | 2002 | $30,000 |
| Wonder Star Construction | | | labor relations violation | 2008 | $10,003 |
| Wonder Meats | | | labor relations violation | 2007 | $212,500 |
| Women's International League for Peace and Freedom | | | labor relations violation | 2008 | $50,000 |
| Women's Health Associates of Southern Nevada | | | labor relations violation | 2021 | $51,127 |
| Women's Health and Family Planning Association of Texas | | | labor relations violation | 2015 | $41,594 |
| Womco Insulation Inc. | | | labor relations violation | 2010 | $40,000 |
| Wolverine Redi-Mix & Supply, L.L.C. | | | labor relations violation | 2004 | $25,000 |
| Wolfe Electric Company, Incorporated | | | labor relations violation | 2006 | $210,000 |
| Wolf Fire Protection, Inc. | | | labor relations violation | 2011 | $20,000 |
| Wolf Creek Nuclear Operating Corporation | | | labor relations violation | 2000 | $20,219 |
| Wolf Appliance, Inc. | | | labor relations violation | 2017 | $125,000 |
| WOL-MED | | | labor relations violation | 2000 | $10,000 |
| Wohlert Corp. | | | labor relations violation | 2004 | $400,000 |
| WL Gore & Associates | W.L. Gore | miscellaneous manufacturing | labor relations violation | 2008 | $6,500 |
| WKYC-TV, Inc. | Tegna | media | labor relations violation | 2003 | $100,000 |
| WKI Holding Co. - EKCO Housewares - Massillon Ohio Plant [World Kitchen Incorporated] | Cornell Capital | private equity (including portfolio companies) | labor relations violation | 2004 | $13,511 |
| Wiza Industries, Inc. | | | labor relations violation | 2004 | $8,630 |
| Wismarq Valencia, LLC | | | labor relations violation | 2012 | $65,881 |
| Wise Services | | | labor relations violation | 2009 | $5,301 |
| Wise International Trucks of Ohio, Inc. D/b/a Wise International Trucks, Inc. | | | labor relations violation | 2004 | $7,422 |
| Wise Alloys, LLC | | | labor relations violation | 2006 | $14,848 |
| Wisconsin State AFL-CIO | | | labor relations violation | 2004 | $44,297 |
| Wisconsin Aluminum Foundry, Inc. | | | labor relations violation | 2010 | $6,000 |
| WIRELESS ZONE-ADMC ENTERPRISES, LLC | | | labor relations violation | 2015 | $34,040 |
| Wiregrass Metal Trades Council | | | labor relations violation | 2004 | $12,000 |
| Wire Works Business Systems Inc | | | labor relations violation | 2011 | $8,000 |
| Wire Rope Works, Inc. | | | labor relations violation | 2008 | $5,000 |
| Wire Rope Corporation of America, Inc. | | | labor relations violation | 2007 | $9,243 |
| Wire Rope Corporation of America - Kirksville Division | | | labor relations violation | 2006 | $7,817 |
| Wire Rope Corporation of America | | | labor relations violation | 2001 | $7,427 |
| Wire Products Manufacturing Corporation | | | labor relations violation | 2000 | $9,772 |
| Wintz Freight-Ways, Inc. | | | labor relations violation | 2004 | $22,400 |
| Wintonbury Care Center, Inc. | | | labor relations violation | 2010 | $12,000 |
| Winpak Portion Packaging | | | labor relations violation | 2000 | $15,000 |
| Winona Health Services | | | labor relations violation | 2016 | $19,523 |
| Winner Steel, Inc. | | | labor relations violation | 2007 | $26,876 |
| Winner Steel, Inc. | | | labor relations violation | 2006 | $28,575 |
| Winner Steel, Inc. | | | labor relations violation | 2003 | $10,000 |
| Winner Steel Inc. | | | labor relations violation | 2000 | $15,500 |
| Winn Residential | | | labor relations violation | 2002 | $30,000 |
| Winkelman Heating and Air Conditioning Co. | | | labor relations violation | 2016 | $19,800 |
| Wings Enterprises, Inc. | | | labor relations violation | 2010 | $75,000 |
| Wingra Redi-Mix, Inc. | | | labor relations violation | 2013 | $110,000 |
| Wingfoot Commercial Tire | Goodyear Tire & Rubber | automotive parts | labor relations violation | 2007 | $10,000 |
| Winebow | | | labor relations violation | 2009 | $34,797 |
| Wine Concrete Products, Inc. | | | labor relations violation | 2004 | $13,000 |
