| HUHenkel US Operating CORP | Elgin | IL | Wood Product Manufacturing321911 | — | ◇ UNVERIFIED |
| UBUS Brick Elgin Plant | Elgin | TX | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| AEAdvance Engineering CORP | Elgin | IL | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| HPHagg Press INC | Elgin | IL | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| 1A1st Ayd Corporation | Elgin | IL | Chemical Manufacturing325611 | — | ◇ UNVERIFIED |
| 737-eleven 33135 | Elgin | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| AIAlchemitron INC | Elgin | IL | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| APAmax Plating Incorporated | Elgin | IL | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| AEAmeren - Elgin Energy Center | Elgin | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| AIAmerichem INC | Elgin | IL | Chemical Manufacturing325991 | — | ◇ UNVERIFIED |
| BABall Aerosol & Specialty Container INC | Elgin | IL | Fabricated Metal Product Manufacturing332431 | — | ◇ UNVERIFIED |
| BTBalzers Tool Coating INC | Elgin | IL | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| BPButler Plt 1 & 2 | Elgin | TX | Nonmetallic Mineral Product Manufacturing327121 | — | ◇ UNVERIFIED |
| CCCapital Concrete CO Elgin | Elgin | SC | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CSCap & Seal LP | Elgin | IL | Miscellaneous Manufacturing339991 | — | ◇ UNVERIFIED |
| DED E H Printed Circuits | Elgin | IL | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| DDDsm Desotech INC | Elgin | IL | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| ECElmhurst Chicago Stone | Elgin | IL | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| GPGraphic Packaging International LLC | Elgin | IL | Paper Manufacturing322212 | — | ◇ UNVERIFIED |
| HIHbd Industries Elgin | Elgin | SC | Plastics and Rubber Products Manufacturing326220 | — | ◇ UNVERIFIED |
| HAHenkel Adhesives Corporation | Elgin | IL | Chemical Manufacturing325520 | — | ◇ UNVERIFIED |
| HSHinckley Springs | Elgin | IL | Beverage and Tobacco Product Manufacturing312111 | — | ◇ UNVERIFIED |
| HGHytel Group | Elgin | IL | Computer and Electronic Product Manufacturing334419 | — | ◇ UNVERIFIED |
| ITIllinois Tool Works | Elgin | IL | Fabricated Metal Product Manufacturing332722 | — | ◇ UNVERIFIED |
| ICImage Circuit INC | Elgin | IL | Computer and Electronic Product Manufacturing334412 | — | ◇ UNVERIFIED |
| IIIndevcon INC | Elgin | IL | Fabricated Metal Product Manufacturing332618 | — | ◇ UNVERIFIED |
| IBItw Buildex | Elgin | IL | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| JBJohn B Sanfilippo & Sons INC | Elgin | IL | Food Manufacturing311911 | — | ◇ UNVERIFIED |
| KEKinney Electrical Mfg CO | Elgin | IL | Electrical Equipment, Appliance & Component Manufacturing335313 | — | ◇ UNVERIFIED |
| LFLaird Funeral Home | Elgin | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| MMMaster Molded Products | Elgin | IL | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| MCMiddleby Cooking System | Elgin | IL | Machinery Manufacturing333241 | — | ◇ UNVERIFIED |
| NBNorthfield Block Company | Elgin | IL | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| OOldcastle | Elgin | IL | Nonmetallic Mineral Product Manufacturing327332 | — | ◇ UNVERIFIED |
| OLOldcastle Lawn & Garden | Elgin | TX | Wood Product Manufacturing321999 | — | ◇ UNVERIFIED |
| OIOzinga Illinois Rmc INC | Elgin | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| PBPackaging By Design | Elgin | IL | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| PSParker Seals/gnp Operations | Elgin | IL | Miscellaneous Manufacturing339991 | — | ◇ UNVERIFIED |
| PDPlastic Decorators INC | Elgin | IL | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| RMRedline Metals | Elgin | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
 Siemens Industry | Elgin | IL | Machinery Manufacturing333611 | — | ◇ UNVERIFIED |
| SSSkf Sealing Solutions | Elgin | IL | Plastics and Rubber Products Manufacturing326299 | — | ◇ UNVERIFIED |
| SPStarro Precision Products INC | Elgin | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| SPSuburban Plastics CO | Elgin | IL | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| SPSunstar Pharmaceutical INC | Elgin | IL | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| TITin INC Dba Elgin Corrugated Box | Elgin | IL | Paper Manufacturing322211 | — | ◇ UNVERIFIED |
| WTWauconda Tool & Engineering CO INC | Elgin | IL | Fabricated Metal Product Manufacturing332119 | — | ◇ UNVERIFIED |
| NDNationwide Di Water Solutions | Elgin | MN | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| AWAdp Water Reclamation Facility | Elgin | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| APA&e Plastics, LLC | Elgin | IL | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
