| ALAllvac - Lockport Plant | Lockport | NY | Primary Metal Manufacturing331492 | — | ◇ UNVERIFIED |
| CCCandlelight Cabinetry | Lockport | NY | Paper Manufacturing322212 | — | ◇ UNVERIFIED |
| LSLockport Steel Fabricators | Lockport | IL | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| MAMilward Alloys | Lockport | NY | Primary Metal Manufacturing331312 | — | ◇ UNVERIFIED |
| TLTwin Lake Chemical, INC. | Lockport | NY | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| ACAmerican Concrete of Wny | Lockport | NY | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| AMAztec Material Service CORP | Lockport | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| BPBuffalo Paperboard | Lockport | NY | Paper Manufacturing322130 | — | ◇ UNVERIFIED |
| CACambria Asphalt Products, INC. | Lockport | NY | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| CRClark Rigging & Rental | Lockport | NY | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| EFEuraca Finishing INC | Lockport | NY | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| FSFuel Solutions LLC | Lockport | LA | Paper Manufacturing322121 | — | ◇ UNVERIFIED |
| GBGreif Bros CORP | Lockport | IL | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| GMG&s Marine INC | Lockport | LA | Machinery Manufacturing333611 | — | ◇ UNVERIFIED |
| GWGxo Warehouse Company, INC. Lockport | Lockport | NY | Plastics and Rubber Products Manufacturing326191 | — | ◇ UNVERIFIED |
| IIIfco Ics-chicago INC | Lockport | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| ITInternational Titanium Powder | Lockport | IL | Fabricated Metal Product Manufacturing332117 | — | ◇ UNVERIFIED |
| JPJw Peters & Sons INC | Lockport | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| MSMidwest Soil Remediation | Lockport | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| MPM-r-s Plating INC | Lockport | NY | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| OOldcastle | Lockport | IL | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| PPParamount Plastics INC | Lockport | IL | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| NFNiagara Fiberboard INC | Lockport | NY | Paper Manufacturing322130 | — | ◇ UNVERIFIED |
| 3C315 Chicago | Lockport | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| AVAspen Valley Landscape Supply INC | Lockport | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| CKCircle K 6832 Aka Shell | Lockport | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| CGCrimson Gulf LLC - Larose Crude Oil Pumping Station | Lockport | LA | Paper Manufacturing322219 | — | ◇ UNVERIFIED |
| DTDiamond Transport INC | Lockport | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| DPDove Prods INC | Lockport | IL | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| DPDove Products | Lockport | IL | Plastics and Rubber Products Manufacturing326150 | — | ◇ UNVERIFIED |
| EMExxon Mobil Pipeline CO | Lockport | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| FRFw Roberts Manufacturing CO | Lockport | NY | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| GWGeneral Wires, Inc. | Lockport | NY | Computer and Electronic Product Manufacturing334417 | — | ◇ UNVERIFIED |
| HIHomer Industries | Lockport | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| IIdot | Lockport | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| JWJ&m Wood Products | Lockport | IL | Wood Product Manufacturing321113 | — | ◇ UNVERIFIED |
| LILandcraft, INC. | Lockport | IL | Transportation Equipment Manufacturing336612 | — | ◇ UNVERIFIED |
| LVLegacy Vinyl Components, LLC | Lockport | IL | Wood Product Manufacturing321999 | — | ◇ UNVERIFIED |
| LVLegacy Vinyl Components, LLC | Lockport | IL | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| LFLg Fabricators | Lockport | LA | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| MAM14 Annex | Lockport | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| MTMcmahon Transport Group LLC | Lockport | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| MLMerutz, LLC | Lockport | IL | Wood Product Manufacturing321999 | — | ◇ UNVERIFIED |
| MMM & M Precision LLC | Lockport | NY | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| NPNiagara Precision INC. | Lockport | NY | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| NPNorthridge Printing Inc. | Lockport | NY | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| NINueva Inc. | Lockport | NY | Food Manufacturing311812 | — | ◇ UNVERIFIED |
| PLParker-Linden LLC | Lockport | NY | Machinery Manufacturing333991 | — | ◇ UNVERIFIED |
| PCPolyone CORP | Lockport | NY | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| SLSilva LLC | Lockport | NY | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
