| EMEffingham Machining & Assembly Components | Effingham | IL | Fabricated Metal Product Manufacturing332721 | 100-499 | ◐ LIKELY ACTIVE |
| MEMechanovent Effingham | Effingham | IL | Miscellaneous Manufacturing339999 | — | ◐ LIKELY ACTIVE |
| IRInterstate Recycle Corp./heuerman Bros. | Effingham | IL | Miscellaneous Manufacturing339999 | — | ◐ LIKELY ACTIVE |
| SSSuperior Solvents and Chemicals INC | Effingham | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| TSThe Sherwin-williams CO - Effingham Dsc | Effingham | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| ARAg Recycling | Effingham | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| BHB&b Homes INC | Effingham | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| BEBromley Excavating | Effingham | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| BEBromley Excavating | Effingham | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| BIBuening Implement INC | Effingham | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| CRCci Redi Mix | Effingham | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| CHC & H Gravel CO | Effingham | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| CHC & H Gravel CO | Effingham | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| CGC&h Gravel CO | Effingham | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| CGC&h Gravel CO | Effingham | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| 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 |
| JHJohn Habing Construction | Effingham | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| KWK Wohltman Construction INC | Effingham | IL | Miscellaneous Manufacturing339999 | — | ◇ 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 |
| MCMci Concrete Construction | Effingham | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| MIMoore INC | Effingham | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| PEParsons Engineering Science | Effingham | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| QNQuiktrip No 89-7191 | Effingham | IL | Miscellaneous Manufacturing339999 | — | ◇ 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 |
