| US Intermodal, Inc. NJ | Transportation & Warehousing | 0 | — | C |
| US Intermodal, Inc. NM | Transportation & Warehousing | 0 | — | A |
| US Intermodal, Inc. TX | Transportation & Warehousing | 0 | — | A |
| US Investigation Services, LLC PA | — | 0 | — | — |
| Us Joiner LLC CA | — | 0 | — | — |
| US Laboratories FL | — | 0 | — | — |
| US LBM CA | Manufacturing | 0 | — | F |
| US LBM CO | Retail Trade | 0 | — | D |
| US LBM KY | Retail Trade | 0 | — | D |
| US LBM NV | Retail Trade | 0 | — | F |
| US LBM OH | Retail Trade | 0 | — | A |
| US LBM WA | Retail Trade | 0 | — | A |
| US LBM - Mid-Cape Home Centers MA | Retail Trade | 0 | — | D |
| US LBM Holdings MS | Management of Companies | 0 | — | F |
| US LBM Holdings, LLC AL | Construction | 0 | — | F |
| US LBM Holdings, LLC AR | Retail Trade | 0 | — | D |
| US LBM Holdings, LLC AZ | Manufacturing | 0 | — | F |
| US LBM Holdings, LLC CT | Manufacturing | 0 | — | F |
| US LBM Holdings, LLC FL | Retail Trade | 0 | — | F |
| US LBM Holdings, LLC GA | Retail Trade | 0 | — | C |
| US LBM Holdings, LLC IA | Manufacturing | 0 | — | F |
| US LBM Holdings, LLC IL | Retail Trade | 0 | — | F |
| US LBM Holdings, LLC IN | Retail Trade | 0 | — | F |
| US LBM Holdings, LLC MA | Retail Trade | 0 | — | F |
| US LBM Holdings, LLC MD | Retail Trade | 0 | — | F |
| US LBM Holdings, LLC ME | Retail Trade | 0 | — | D |
| US LBM Holdings, LLC MI | Retail Trade | 0 | — | D |
| US LBM Holdings, LLC MN | Construction | 0 | — | F |
| US LBM Holdings, LLC MO | Retail Trade | 0 | — | C |
| US LBM Holdings, LLC NC | Retail Trade | 0 | — | C |
| US LBM Holdings, LLC ND | Retail Trade | 0 | — | F |
| US LBM Holdings, LLC NJ | Wholesale Trade | 0 | — | C |
| US LBM Holdings, LLC NM | Wholesale Trade | 0 | — | C |
| US LBM Holdings, LLC NY | Retail Trade | 0 | — | F |
| US LBM Holdings, LLC OK | Manufacturing | 0 | — | F |
| US LBM Holdings, LLC PA | Retail Trade | 0 | — | C |
| US LBM Holdings, LLC SC | Retail Trade | 0 | — | C |
| US LBM Holdings, LLC SD | Manufacturing | 0 | — | F |
| US LBM Holdings, LLC TX | Retail Trade | 0 | — | D |
| US LBM Holdings, LLC VA | Retail Trade | 0 | — | C |
| US LBM Holdings, LLC VT | Retail Trade | 0 | — | D |
| US LBM Holdings, LLC WI | Manufacturing | 0 | — | F |
| US Liner PA | Manufacturing | 0 | — | F |
| US Lines, LLC CA | — | 0 | — | — |
| US Logistics Solutions IN | Transportation & Warehousing | 0 | — | F |
| US Logistics Solutions MD | Transportation & Warehousing | 0 | — | A |
| US Logistics Solutions MI | Transportation & Warehousing | 0 | — | F |
| US Logistics Solutions MO | Transportation & Warehousing | 0 | — | A |
| US Logistics Solutions NC | Transportation & Warehousing | 0 | — | F |
| US Logistics Solutions TN | Transportation & Warehousing | 0 | — | F |