| APAccurage Paving & Seal Coating | Dixon | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| AAAction Athletic Equipment INC | Zion | IL | Miscellaneous Manufacturing339920 | — | ◇ UNVERIFIED |
| ADAction Disposal | Chicago | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| ABAcuity Brands Lighting | Hanover Park | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| ADAdvanced Diamond Technologies | Romeoville | IL | Miscellaneous Manufacturing339991 | — | ◇ UNVERIFIED |
| AMAdvanced Material Svcs | Aurora | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| ATAdvantage Tree Service and Lawncare | Charleston | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| AIAgri-load INC | Joliet | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| APAkshar Plastic INC | Bloomington | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| ACAlamp Concrete Contractors INC | Northbrook | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| ACAlamp Concrete Contractors INC | Maywood | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| AMAlbar Metals | Wheeling | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| ASAlessio & Sons CO | Norridge | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| ALAlfa Laval Inc-standard Refrigeration | Wood Dale | IL | Fabricated Metal Product Manufacturing332410 | — | ◇ UNVERIFIED |
| ACAll Cleaners | Aurora | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| ATAllied Tube & Conduit | South Holland | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| AMAlton Materials | Alton | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| AIAlvar INC | Washburn | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| ASAmazon.com Services LLC Hmw1 | Wilmington | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| AEAmeren - Elgin Energy Center | Elgin | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| ARAmerenenergy Resouces Generating CO | Peoria | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| AMAmerica Material Sales | Maywood | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| ADAmerican Demolition CORP | La Grange Park | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| AHAnderson Heat Treating INC | Rockford | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| APAntioch Packing House | Antioch | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| ARAppliance Recylcers INC | Granite City | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| AIAquion INC | Roselle | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| AWAquion Water Treatment Products LLC Awtp Holding LLC | Elk Grove Village | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| ADArea Diesel Service INC | Carlinville | IL | Fabricated Metal Product Manufacturing332721 | — | ◇ UNVERIFIED |
| ABArends Bros. LLC. | Melvin | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| ALArlington LLC | Arlington Heights | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| AGArnold Graphic Resources INC. | Schaumburg | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| AArtco | Lemont | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| ATAsian Trendwares INC | Lombard | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| ATAstro Tire Removal INC | Thomasboro | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| AWAt&t Wireless Navy Pier-water | Chicago | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| AFAugusta Fire Protection District | Augusta | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| ATAurora Transmission | Montgomery | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| ATAvicenna Technology, INC Dba Laserage | Waukegan | IL | Miscellaneous Manufacturing339112 | — | ◇ UNVERIFIED |
| AZAw Zengeler Cleaners INC | Northbrook | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| BBBaker's Body Repair | Chebanse | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| BBBattery Builders LLC | North Aurora | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| BAB Auto Parts | East Saint Louis | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| BWBaxter & Woodman Inc- Woodstock | Woodstock | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| BBBdi Brands LLC | Elmhurst | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| BRBell Racing CO | Rantoul | IL | Miscellaneous Manufacturing339920 | — | ◇ UNVERIFIED |
| BSBell Sports CO | Rantoul | IL | Miscellaneous Manufacturing339920 | — | ◇ UNVERIFIED |
| BSBell Sports INC | Rantoul | IL | Machinery Manufacturing333992 | — | ◇ UNVERIFIED |
| BCBerkeley Contract Packaging | Edwardsville | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| BMBeverly Manufacturing CO | Tinley Park | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
