| Westin Detroit Metropolitan Airport MI | — | 0 | — | — |
| Westin Governor Morristown NJ | Accommodation & Food Services | 0 | — | F |
| Westin Hapuna Beach Resort & Mauna Kea Beach Hotel HI | — | 0 | — | — |
| Westin Homes and Properties, LP TX | Construction | 0 | — | A |
| Westin Kaanapali Ocean Resort HI | — | 0 | — | — |
| Westin La Paloma Resort and Spa AZ | — | 0 | — | — |
| Westin Las Vegas Hotel & Spa NV | — | 0 | — | — |
| Westin Milwaukee WI | — | 0 | — | — |
| Westin Mpls 2020 MN | — | 0 | — | — |
| Westin Nashville TN | Accommodation & Food Services | 0 | — | F |
| Westin Princeville Ocean Resort Villas HI | Accommodation & Food Services | 0 | — | B |
| Westin Sheraton Vacation Services, Inc. and CA | — | 0 | — | — |
| Westin St. Francis CA | — | 0 | — | — |
| Westin Stonbriar Hotel TX | — | 0 | — | — |
| Westin Tampa Harbour Island FL | — | 0 | — | — |
| Westin, Inc MO | Manufacturing | 0 | — | F |
| Westin, Inc NE | Manufacturing | 0 | — | F |
| Westinghouse Air Brake Technologies Corporation (Wabtec US Rail) OH | Manufacturing | 0 | — | A |
| Westinghouse Air Brake Technologies Corporation (Wabtec) OH | Manufacturing | 0 | — | F |
| Westinghouse Electric SC | — | 0 | — | — |
| Westinghouse Electric Company MN | Manufacturing | 0 | — | A |
| Westinghouse Electric Company PA | Manufacturing | 0 | — | A |
| WESTINGHOUSE ELECTRIC COMPANY UT | Manufacturing | 0 | — | A |
| Westinghouse Electric Company LLC CT | — | 0 | — | — |
| Westinghouse Electric Company LLC (Update to 3/26/14 notice) CT | — | 0 | — | — |
| Westinghouse Electric Company, LLC (Update to 1/9/14 notice) CT | — | 0 | — | — |
| Westlake AZ | Manufacturing | 0 | — | B |
| Westlake FL | Manufacturing | 0 | — | C |
| Westlake LA | Manufacturing | 0 | — | A |
| Westlake SC | Manufacturing | 0 | — | A |
| Westlake WA | Manufacturing | 0 | — | D |
| Westlake WI | Manufacturing | 0 | — | A |
| Westlake Chemical KS | Manufacturing | 0 | — | D |
| Westlake Chemical LA | Manufacturing | 0 | — | A |
| Westlake Chemical TX | Manufacturing | 0 | — | A |
| Westlake Chemical - Plaquemine LA | Manufacturing | 0 | — | A |
| Westlake Chemical, LLC MS | Manufacturing | 0 | — | C |
| Westlake Chemicals LA | Manufacturing | 0 | — | A |
| Westlake Convalescent Hospital CA | Healthcare & Social Assistance | 0 | — | F |
| Westlake Corporation KY | Manufacturing | 0 | — | A |
| Westlake Corporation MI | Manufacturing | 0 | — | A |
| Westlake Corporation OH | Manufacturing | 0 | — | C |
| Westlake Corporation WV | Manufacturing | 0 | — | B |
| WESTLAKE EPOXY INC. FL | Manufacturing | 0 | — | A |
| Westlake Epoxy Inc. IL | Manufacturing | 0 | — | A |
| Westlake Epoxy Inc. TX | Manufacturing | 0 | — | A |
| Westlake Health & Rehabilitation Center CO | Healthcare & Social Assistance | 0 | — | F |
| Westlake Management Services, Inc MS | Manufacturing | 0 | — | B |
| Westlake Management Services, Inc. TX | Manufacturing | 9 | $150,863 | — |
| Westlake Operations LLC OH | Healthcare & Social Assistance | 0 | — | F |