| BWBorg Warner Torq Transfer Systems | Seneca | SC | Transportation Equipment Manufacturing336350 | — | ◇ UNVERIFIED |
| JAJohn a Biewer CO of Illinois | Seneca | IL | Wood Product Manufacturing321114 | — | ◇ UNVERIFIED |
| MLMatric LTD Seneca | Seneca | PA | Computer and Electronic Product Manufacturing334412 | — | ◇ UNVERIFIED |
| SESchneider Electric | Seneca | SC | Electrical Equipment, Appliance & Component Manufacturing335314 | — | ◇ UNVERIFIED |
| ASAec Seneca-closed | Seneca | SC | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| CICf Industries Sales - Seneca Terminal | Seneca | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| MOMartin Operating Partnership LP | Seneca | IL | Chemical Manufacturing325130 | — | ◇ UNVERIFIED |
| MCMiller & CO | Seneca | IL | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| PPParkway Products INC | Seneca | SC | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| SISchake Ind Seneca Fac | Seneca | PA | Fabricated Metal Product Manufacturing332420 | — | ◇ UNVERIFIED |
| SISchake Industries INC | Seneca | PA | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| SSSkf Sealing Solutions | Seneca | KS | Miscellaneous Manufacturing339991 | — | ◇ UNVERIFIED |
| TCThomas Concrete of South Carolina Incorporated Seneca | Seneca | SC | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CSClark Station | Seneca | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
 Eaglepicher Technologies, LLC | Seneca | MO | Fabricated Metal Product Manufacturing332993 | — | ◇ UNVERIFIED |
 Griffin Industries | Seneca | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| ISIdeal Steel INC | Seneca | SC | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| KCKoch & Company Door Division INC. | Seneca | KS | Furniture and Related Product Manufacturing337110 | — | ◇ UNVERIFIED |
| LRLifetime Rooftile CO | Seneca | IL | Machinery Manufacturing333248 | — | ◇ UNVERIFIED |
| NMNick's Metal Fabricating & Sons, Inc. | Seneca | IL | Fabricated Metal Product Manufacturing332323 | — | ◇ UNVERIFIED |
| SESeneca Enterprise CORP | Seneca | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| SSSeneca Sand LLC | Seneca | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| TFTycoon Fabrication LLC | Seneca | SC | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
