| Windmill Rice Company AR | Manufacturing | 0 | — | A |
| Windmill Trucking LLC WI | Transportation & Warehousing | 0 | — | A |
| Windom Area Health MN | Healthcare & Social Assistance | 0 | — | F |
| Windom Area Schools MN | Educational Services | 0 | — | D |
| Windom Wash, LLC MN | Other Services | 0 | — | A |
| Windor Supply & Manufacturing Inc OK | Manufacturing | 0 | — | F |
| Windover Construction MA | Construction | 0 | — | D |
| Window and Door Showplace, Inc VA | Construction | 0 | — | A |
| Window City NJ | Construction | 0 | — | F |
| Window Consultants, Inc. MD | Construction | 0 | — | A |
| Window Creations, LLC OH | Construction | 0 | — | A |
| Window Installation Specialists WA | Construction | 0 | — | F |
| Window Mart AR | Manufacturing | 0 | — | F |
| Window Masters Inc NV | Administrative & Waste Services | 0 | — | A |
| Window Solutions Inc. WI | Construction | 0 | — | F |
| Window Specialist Inc NY | Construction | 0 | — | F |
| Window Technologies Inc. MO | Manufacturing | 0 | — | F |
| Window Wizard, Inc ID | Administrative & Waste Services | 0 | — | A |
| Window World LA | Retail Trade | 0 | — | A |
| Window World of Baton Rouge, LLC LA | Retail Trade | 0 | — | A |
| Window World of Western Massachusetts, Inc. MA | Construction | 0 | — | F |
| Window World, Inc. HI | Wholesale Trade | 0 | — | C |
| WINDOWMAN OF SOUTH FLORIDA - BTP, LLC FL | Construction | 0 | — | A |
| Windows and Doors by Brownell, Inc NH | Construction | 0 | — | A |
| Windows and Doors by Brownell, Inc. VT | Construction | 0 | — | F |
| Windows Doors and More LA | Construction | 0 | — | F |
| Windows LLC IN | Construction | 0 | — | F |
| Windows LLC OH | Construction | 0 | — | C |
| Windows LLC TN | Construction | 0 | — | F |
| Windows of Wisconsin, LLC WI | Construction | 0 | — | F |
| Windows Plus Construction Inc CA | Construction | 0 | — | F |
| WindRiver Companies FL | Healthcare & Social Assistance | 0 | — | A |
| WindRiver Companies SC | Healthcare & Social Assistance | 0 | — | A |
| WindRiver Companies TX | Healthcare & Social Assistance | 0 | — | A |
| WindRiver Grain L.L.C. KS | Wholesale Trade | 0 | — | A |
| WINDROCK INC. TN | Manufacturing | 0 | — | F |
| Windrose Consulting Group LLC PA | Professional & Technical Services | 0 | — | A |
| Windsong Alaska Properties, LLC dba Alaska Tour & Travel AK | Administrative & Waste Services | 0 | — | A |
| Windsong at Eola Hills OR | Healthcare & Social Assistance | 0 | — | F |
| Windsong at Northridge CO | Healthcare & Social Assistance | 0 | — | F |
| WindSong at Southridge WA | Healthcare & Social Assistance | 0 | — | F |
| Windsor Anaheim CA | Healthcare & Social Assistance | 0 | — | F |
| Windsor Arvin Healthcare, LLC CA | Healthcare & Social Assistance | 0 | — | F |
| Windsor Austin House, LLC AZ | Healthcare & Social Assistance | 0 | — | A |
| Windsor Bakersfield Healthcare, LLC CA | Healthcare & Social Assistance | 0 | — | F |
| Windsor Beach Technologies, Inc. PA | Manufacturing | 0 | — | A |
| Windsor Board of Education CT | Public Administration | 0 | — | D |
| Windsor Building Systems WI | Construction | 0 | — | F |
| WINDSOR CAPITAL GROUP NV | Accommodation & Food Services | 0 | — | F |
| Windsor Care Center National City, Inc CA | Healthcare & Social Assistance | 0 | — | F |
