| CWColor Works Painting - Edwards Avenue | New Castle | DE | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| CCCrowell Corporation | Newport | DE | Paper Manufacturing322220 | — | ◇ UNVERIFIED |
| IIIntervet INC. | Millsboro | DE | Chemical Manufacturing325414 | — | ◇ UNVERIFIED |
| JPJohnson Polymer INC | Seaford | DE | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| MFMountaire Farms INC. - Selbyville Processing | Selbyville | DE | Food Manufacturing311615 | — | ◇ UNVERIFIED |
| OSOwen Steel Company | Wilmington | DE | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| RARohm and Haas Electronic Materials Cmp INC | Newark | DE | Textile Mills313320 | — | ◇ UNVERIFIED |
| TPThe Pictsweet Company | Bridgeville | DE | Food Manufacturing311411 | — | ◇ UNVERIFIED |
| VRVp Racing Fuels | Newark | DE | Petroleum and Coal Products Manufacturing324199 | — | ◇ UNVERIFIED |
| ATAamco Transmissions | Dover | DE | Miscellaneous Manufacturing339112 | — | ◇ UNVERIFIED |
| AMA-bills Mower Parts & Svcs | Rising Sun - Lebanon | DE | Miscellaneous Manufacturing339112 | — | ◇ UNVERIFIED |
| ADA Duie Pyle - 204 Quigley Blvd, New Castle | New Castle | DE | Chemical Manufacturing325222 | — | ◇ UNVERIFIED |
| AMAig Marketing - 3 Beaver Valley Rd, Wilmington | Wilmington | DE | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| ALAir Liquide Industrial US LP | Delaware City | DE | Chemical Manufacturing325120 | — | ◇ UNVERIFIED |
| APAir Products & Chemicals, INC. H2 Smr Plant at Delaware City Refining Company | Delaware City | DE | Chemical Manufacturing325120 | — | ◇ UNVERIFIED |
| APAir Products New Castle De H2 Plant | Delaware City | DE | Chemical Manufacturing325120 | — | ◇ UNVERIFIED |
| ACAkzo Chemicals INC. | Delaware City | DE | Chemical Manufacturing325000 | — | ◇ UNVERIFIED |
| AWAlanx Wear Solutions INC | Newark | DE | Chemical Manufacturing325222 | — | ◇ UNVERIFIED |
| ADAlderman Datsun | New Castle | DE | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| AMAllan Myers, Delaware, INC - Dover | Dover | DE | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| AAAll-tech Autobody | Townsend | DE | Miscellaneous Manufacturing339112 | — | ◇ UNVERIFIED |
| ASAmazon.com Services LLC. | Middletown | DE | Printing and Related Support Activities323117 | — | ◇ UNVERIFIED |
| AAAmerican Air Liquide-glasgow | Newark | DE | Chemical Manufacturing325120 | — | ◇ UNVERIFIED |
| AIAmetek Inc., Chemical Products Division | Wilmington | DE | Textile Mills313221 | — | ◇ UNVERIFIED |
| AAmoco #5185 | Newark | DE | Miscellaneous Manufacturing339112 | — | ◇ UNVERIFIED |
| AGAny Garment Cleaners #106 | Wilmington | DE | Chemical Manufacturing325222 | — | ◇ UNVERIFIED |
| AAArc Automotive Radiator CO | Wilmington | DE | Miscellaneous Manufacturing339112 | — | ◇ UNVERIFIED |
| ACArch Chemicals INC | New Castle | DE | Chemical Manufacturing325910 | — | ◇ UNVERIFIED |
| AWArtesian Water Company | Newark | DE | Miscellaneous Manufacturing339112 | — | ◇ UNVERIFIED |
| APAstrazeneca Pharmaceuticals, Llc-newark | Newark | DE | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| AIAstropower INC Solar Park | Newark | DE | Computer and Electronic Product Manufacturing334413 | — | ◇ UNVERIFIED |
| ACAtlantic Coast Environmental - 225 State College, Dover | Dover | DE | Miscellaneous Manufacturing339112 | — | ◇ UNVERIFIED |
| AAAurora Agronomy | Seaford | DE | Chemical Manufacturing325320 | — | ◇ UNVERIFIED |
| ABAuto Body Supply | Dover | DE | Miscellaneous Manufacturing339112 | — | ◇ UNVERIFIED |
| ARAutomotive Restoration | Bear | DE | Miscellaneous Manufacturing339112 | — | ◇ UNVERIFIED |
| BEBeazer East, INC. & Dupont | Newport | DE | Wood Product Manufacturing321114 | — | ◇ UNVERIFIED |
| BHBeracah Homes INC | Greenwood | DE | Wood Product Manufacturing321992 | — | ◇ UNVERIFIED |
| BABernies Automotive | Middletown | DE | Chemical Manufacturing325222 | — | ◇ UNVERIFIED |
| BCBill Cannons Garage INC | Selbyville | DE | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| BWBj's Wholesale Club #0178 | Newark | DE | Chemical Manufacturing325222 | — | ◇ UNVERIFIED |
| BEBloom Energy Manufacturing Center Delaware | Newark | DE | Electrical Equipment, Appliance & Component Manufacturing335999 | — | ◇ UNVERIFIED |
 Bloom Energy - Plant #7 | Newark | DE | Electrical Equipment, Appliance & Component Manufacturing335999 | — | ◇ UNVERIFIED |
| BSBlue Swan Wilmington | Wilmington | DE | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| BOBradford Orthopedics | Dover | DE | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| BIBruce Industrial CO INC | New Castle | DE | Chemical Manufacturing325222 | — | ◇ UNVERIFIED |
| CBCarmines Body Shop INC | Wilmington | DE | Miscellaneous Manufacturing339112 | — | ◇ UNVERIFIED |
| CMCermet Materials INC | Wilmington | DE | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| CEChemical Equipment Labs, INC. | Wilmington | DE | Chemical Manufacturing325320 | — | ◇ UNVERIFIED |
| CEChemours - Edge Moor Plant | Wilmington | DE | Chemical Manufacturing325130 | — | ◇ UNVERIFIED |
| CBChiquita Brands | Wilmington | DE | Miscellaneous Manufacturing339112 | — | ◇ UNVERIFIED |
