| Washington State Hospital Association WA | Other Services | 0 | — | A |
| Washington State Office of Financial Management WA | Public Administration | 1 | $110,000 | — |
| Washington State University WA | Educational Services | 48 | $86,675 | B |
| Washington Street Management, LLC NY | Real Estate | 0 | — | A |
| Washington Theological Seminary VA | Educational Services | 1 | $50,586 | — |
| Washington Township Healthcare District CA | Healthcare & Social Assistance | 2 | $152,932 | — |
| Washington Township Senior Living NJ | Healthcare & Social Assistance | 0 | — | A |
| Washington Traffic Control WA | Administrative & Waste Services | 0 | — | D |
| Washington Trails Association WA | Agriculture & Forestry | 0 | — | A |
| Washington Trotting Accusation d/b/a The Meadows Race Track and Casino PA | — | 0 | — | — |
| Washington Twp. MUA NJ | Utilities | 0 | — | F |
| Washington United Terminals INC WA | Transportation & Warehousing | 0 | — | D |
| Washington University MO | Educational Services | 251 | $91,789 | — |
| Washington University in St. Louis MO | Educational Services | 8 | $246,875 | — |
| Washington University of Science and Technology LLC VA | Educational Services | 1 | $83,200 | — |
| Washington University Prep, LLC WA | Public Administration | 1 | $82,000 | — |
| Washington Vintners WA | Manufacturing | 0 | — | A |
| Washington Window & Door, Inc. WA | Retail Trade | 0 | — | B |
| Washington Yu Ying Public Charter School DC | Educational Services | 6 | $61,714 | — |
| Washita Valley Living Center OK | Healthcare & Social Assistance | 0 | — | A |
| WASHMAN LLC OR | Other Services | 0 | — | F |
| WASHMAN LLC WA | Other Services | 0 | — | A |
| Washoe County School District NV | Educational Services | 0 | — | F |
| Washougal Assisted Living, LLC WA | Healthcare & Social Assistance | 0 | — | F |
| Washtenaw Contractors Association MI | Other Services | 0 | — | A |
| Washworld, Inc WI | Manufacturing | 0 | — | A |
| Wasserman & Associates APC CA | Professional & Technical Services | 1 | $120,000 | — |
| WASSERMAN MEDIA GROUP LLC CA | Professional & Technical Services | 3 | $86,300 | — |
| Wasserman, Mancini & Chang, P.C. DC | Professional & Technical Services | 1 | $67,059 | — |
| Waste Advantage Partners TX | Administrative & Waste Services | 0 | — | D |
| Waste Commission of Scott County IA | Wholesale Trade | 0 | — | F |
| Waste Connections TX | Administrative & Waste Services | 0 | — | C |
| Waste Connections Inc. CA | Administrative & Waste Services | 0 | — | F |
| Waste Connections of Alabama, Inc MS | Administrative & Waste Services | 0 | — | F |
| Waste Connections of Alaska, Inc. AK | Administrative & Waste Services | 0 | — | C |
| Waste Connections of Arizona, Inc. AZ | Administrative & Waste Services | 0 | — | D |
| Waste Connections of California, Inc. CA | Administrative & Waste Services | 0 | — | F |
| Waste Connections of Colorado, Inc. CO | Administrative & Waste Services | 0 | — | D |
| Waste Connections of El Paso, LP TX | Administrative & Waste Services | 0 | — | A |
| Waste Connections of Illinois, Inc - Millenium Waste IL | Administrative & Waste Services | 0 | — | F |
| Waste Connections of Illinois, Inc. IL | Administrative & Waste Services | 0 | — | F |
| Waste Connections of Iowa, Inc. IA | Administrative & Waste Services | 0 | — | F |
| Waste Connections of Kansas, Inc. KS | Administrative & Waste Services | 0 | — | F |
| Waste Connections of Kentucky, Inc. KY | Administrative & Waste Services | 0 | — | A |
| Waste Connections of Minnesota, Inc. MN | Administrative & Waste Services | 0 | — | F |
| Waste Connections of Missouri, Inc. MO | Administrative & Waste Services | 0 | — | F |
| Waste Connections of Nebraska, Inc. NE | Administrative & Waste Services | 0 | — | F |
| Waste Connections of New Mexico, Inc. NM | Administrative & Waste Services | 0 | — | A |
| Waste Connections of Oklahoma, Inc. OK | Administrative & Waste Services | 0 | — | C |
| Waste Connections of Oregon, Inc. OR | Administrative & Waste Services | 0 | — | F |