| NHNexpera Headquarters | Newark | DE | Chemical Manufacturing325180 | 20-99 | ◐ LIKELY ACTIVE |
| SASatys Aftermarket Delaware LLC | New Castle | DE | Chemical Manufacturing325510 | — | ◐ LIKELY ACTIVE |
| SNSDIX - Newark | Newark | DE | Chemical Manufacturing325413 | 20-99 | ◐ LIKELY ACTIVE |
| SLSolenis LLC | Wilmington | DE | Chemical Manufacturing325998 | — | ◐ LIKELY ACTIVE |
| TCThe Chemours CO Fc LLC | Wilmington | DE | Chemical Manufacturing325998 | — | ◐ LIKELY ACTIVE |
| WAWilmington Aquarius plant | Wilmington | DE | Chemical Manufacturing325510 | 20-99 | ◐ LIKELY ACTIVE |
| LGLumos Group, LLC | Middletown | DE | Chemical Manufacturing325611 | — | ◐ LIKELY ACTIVE |
| FSFlow Smart, INC. | Seaford | DE | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| ACAmspec Chemical Corporation | Bear | DE | Chemical Manufacturing325188 | — | ◇ UNVERIFIED |
| BLBurris Logistics | Harrington | DE | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| DUDanisco USA INC. - Newark | Newark | DE | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| EIE. I. Du Pont De Nemours and Company (dupont) | Delaware City | DE | Chemical Manufacturing325188 | — | ◇ UNVERIFIED |
| FIFfi Ionix | Dover | DE | Chemical Manufacturing325120 | — | ◇ UNVERIFIED |
| FPFormosa Plastics Corporation | Delaware City | DE | Textile Mills313320 | — | ◇ UNVERIFIED |
| FSFrontier Scientifc Services, INC. | Newark | DE | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| GFGrowmark Fs, LLC. | Milford | DE | Chemical Manufacturing325312 | — | ◇ UNVERIFIED |
| KCKuehne Chemical Co., INC. - Delaware City | Delaware City | DE | Chemical Manufacturing325181 | — | ◇ UNVERIFIED |
| LCLebanon Chemical CORP | Milford | DE | Chemical Manufacturing325314 | — | ◇ UNVERIFIED |
| MHMarcus Hook Termnial | Claymont | DE | Chemical Manufacturing325120 | — | ◇ UNVERIFIED |
| PTPenske Truck Leasing CO LP | New Castle | DE | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| PDPolyguard Division of Dyk Automotive, LLC | Wilmington | DE | Chemical Manufacturing325320 | — | ◇ UNVERIFIED |
| PIPpg Industries, INC. | Dover | DE | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
 Siemens Healthcare Diagnostics, INC. | Newark | DE | Chemical Manufacturing325413 | — | ◇ UNVERIFIED |
| SCSyntec CORP | New Castle | DE | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| TPTechmer Pm | New Castle | DE | Chemical Manufacturing325991 | — | ◇ UNVERIFIED |
| VIVeltec INC | Newark | DE | Chemical Manufacturing325212 | — | ◇ UNVERIFIED |
| VFVersogen - Fmc - S115 | Newark | DE | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
