| DDDiesel Dr Diagnostics | Effingham | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| DDDouble D Signs, INC. | Effingham | IL | Miscellaneous Manufacturing339950 | — | ◇ UNVERIFIED |
| EHEffingham Homes | Effingham | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| EJEffingham Jumpin Jimmys | Effingham | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| EJEffingham Jumpin Jimmys | Effingham | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| HBHeuerman Brothers | Effingham | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| JFJack Flash | Effingham | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| JBJohn Boos - Metal Plant Expansion | Effingham | IL | Wood Product Manufacturing321999 | — | ◇ UNVERIFIED |
| JHJohn Habing Construction | Effingham | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| KWK Wohltman Construction INC | Effingham | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| MEM2x Effingham LLC | Effingham | IL | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| M1Mach 1 Food Shop 5 | Effingham | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| M1Mach 1 Food Shop 7 | Effingham | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| MPMarathon Pipeline LLC | Effingham | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| MCMbi Construction | Effingham | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MCMci Concrete Construction | Effingham | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| MCMechanovent Corporation Dba the New York Blower Company | Effingham | IL | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| MAMid America Motorworks INC | Effingham | IL | Transportation Equipment Manufacturing336399 | — | ◇ UNVERIFIED |
| MLMidwest Lift & Elevator LLC | Effingham | IL | Machinery Manufacturing333921 | — | ◇ UNVERIFIED |
| MIMoore INC | Effingham | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| PEParsons Engineering Science | Effingham | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| POPeerless of America Ii, INC. | Effingham | IL | Primary Metal Manufacturing331316 | — | ◇ UNVERIFIED |
| QGQuad Graphics Marketing LLC | Effingham | IL | Printing and Related Support Activities323110 | — | ◇ UNVERIFIED |
| QPQuad/graphics Printing CORP. | Effingham | IL | Printing and Related Support Activities323110 | — | ◇ UNVERIFIED |
| QNQuiktrip No 89-7191 | Effingham | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| SBSchulte Building Systems | Effingham | IL | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| SCSouth Central Fs | Effingham | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| SSpeedway | Effingham | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| SHSteffen Htg and A/c, INC | Effingham | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
