| Silgan Containers MN | Manufacturing | 0 | — | D |
| Silgan Containers MO | Manufacturing | 0 | — | D |
| Silgan Containers NC | Manufacturing | 0 | — | A |
| Silgan Containers NJ | Manufacturing | 0 | — | C |
| Silgan Containers NY | Manufacturing | 0 | — | A |
| Silgan Containers OH | Manufacturing | 0 | — | A |
| Silgan Containers PA | Manufacturing | 0 | — | A |
| Silgan Containers PR | Manufacturing | 0 | — | A |
| Silgan Containers SC | Manufacturing | 0 | — | A |
| Silgan Containers TN | Manufacturing | 0 | — | A |
| Silgan Containers TX | Manufacturing | 0 | — | B |
| Silgan Containers WA | Manufacturing | 0 | — | B |
| Silgan Containers WI | Manufacturing | 0 | — | A |
| Silgan Containers Manufacturing Corp WI | — | 0 | — | — |
| Silgan Containers Manufacturing Corporation CA | — | 0 | — | — |
| Silgan Containers Manufacturing Corporation MO | — | 0 | — | — |
| Silgan Containers Manufacturing Corporation - Revision 1 WI | — | 0 | — | — |
| Silgan Containers Revised IN | — | 0 | — | — |
| Silgan Dispensing CT | Manufacturing | 0 | — | F |
| Silgan Dispensing OH | Manufacturing | 0 | — | D |
| Silgan Dispensing Systems Corporation KS | Manufacturing | 0 | — | D |
| Silgan Dispensing Systems Corporation MO | Manufacturing | 0 | — | F |
| Silgan Dispensing Systems Corporation VA | Manufacturing | 1 | $87,714 | — |
| Silgan Dispensing Systems Covit America Corporation (Seemar) CT | Manufacturing | 0 | — | F |
| Silgan Dispensing Systems Covit America Corporation, DBA Silgan Aluminum Solutions CT | Manufacturing | 0 | — | F |
| Silgan Dispensing Systems Covit America Corporation, DBA Silgan Aluminum Solutions (Waterbury) CT | Manufacturing | 0 | — | F |
| Silgan Dispensing Systems Thomaston Corporation CT | Manufacturing | 0 | — | F |
| Silgan PFC AR | Manufacturing | 0 | — | F |
| Silgan Plastic Food Containers MO | Manufacturing | 0 | — | F |
| Silgan Plastics CT | Manufacturing | 0 | — | A |
| Silgan Plastics GA | Manufacturing | 0 | — | A |
| Silgan Plastics IL | Manufacturing | 0 | — | B |
| Silgan Plastics IN | Manufacturing | 0 | — | B |
| Silgan Plastics KY | Manufacturing | 0 | — | A |
| Silgan Plastics MO | Manufacturing | 0 | — | B |
| Silgan Plastics NY | Manufacturing | 0 | — | A |
| Silgan Plastics OH | Manufacturing | 0 | — | A |
| Silgan Plastics PA | Manufacturing | 0 | — | C |
| Silgan Plastics TX | Manufacturing | 0 | — | B |
| Silgan Plastics WV | Manufacturing | 0 | — | A |
| Silgan Plastics Corporation Revised (8/24/15) IN | — | 0 | — | — |
| Silgan Plastics LLC (Silgan) PA | — | 0 | — | — |
| Silgan Specialty Packaging WI | Manufacturing | 0 | — | A |
| Silhol Builders Supply Co. PA | Manufacturing | 0 | — | D |
| Silica Transport, Inc. AR | Transportation & Warehousing | 0 | — | A |
| Silicon Carbide Products, Inc. NY | Manufacturing | 0 | — | F |
| SILICON LABORATORIES INC. TX | Manufacturing | 9 | $164,453 | — |
| Silicon Motion, Inc. CA | Manufacturing | 1 | $170,000 | — |
| Silicon Software Technologies Inc TX | Professional & Technical Services | 5 | $91,578 | — |
| SILICON STAFF IT SERVICES INC NJ | Professional & Technical Services | 8 | $94,323 | — |
