| ZCZoltek Corporation | Saint Charles | MO | Electrical Equipment, Appliance & Component Manufacturing335991 | — | ◇ UNVERIFIED |
| AGA Grateful Nation LLC | Saint Charles | MO | Food Manufacturing311920 | — | ◐ LIKELY ACTIVE |
| AWAquacomp Water Treatment Services LLC | Saint Charles | MO | Chemical Manufacturing325998 | — | ◐ LIKELY ACTIVE |
| ACAward Concepts INC | Saint Charles | IL | Miscellaneous Manufacturing339910 | — | ▲ REPORTED CLOSED |
| CBContinental Brake Equipment Company INC | Saint Charles | IL | Machinery Manufacturing333131 | — | ◐ LIKELY ACTIVE |
Fire Cam LLC | Saint Charles | MO | Computer and Electronic Product Manufacturing334310 | — | ◐ LIKELY ACTIVE |
| HGHoltec Gas Systems, LLC | Saint Charles | MO | Machinery Manufacturing333998 | 20-99 | ◐ LIKELY ACTIVE |
| LALmi Aerospace INC | Saint Charles | MO | Transportation Equipment Manufacturing336413 | — | ◐ LIKELY ACTIVE |
| MDMain DC | Saint Charles | MO | Printing and Related Support Activities323111 | 20-99 | ◐ LIKELY ACTIVE |
| MHMead Hall | Saint Charles | MO | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| MIMiTek Inc. St Charles | Saint Charles | MO | Machinery Manufacturing333519 | 100-499 | ◐ LIKELY ACTIVE |
| PSPretium St. Charles | Saint Charles | IL | Plastics and Rubber Products Manufacturing326160 | 100-499 | ◐ LIKELY ACTIVE |
| PHPrometheus Hydrogen, LLC | Saint Charles | IL | Chemical Manufacturing325120 | — | ▲ REPORTED CLOSED |
| PEPropper E-commerce INC | Saint Charles | MO | Apparel Manufacturing315210 | — | ◐ LIKELY ACTIVE |
| SMSedwall Mfg. Co. | Saint Charles | IL | Machinery Manufacturing333514 | 20-99 | ◐ LIKELY ACTIVE |
| SNSonaca North America - STC - HWY 94 | Saint Charles | MO | Transportation Equipment Manufacturing336413 | 20-99 | ◐ LIKELY ACTIVE |
| SCSt Charles, MO (MO003) | Saint Charles | MO | Transportation Equipment Manufacturing336414 | 500+ | ◐ LIKELY ACTIVE |
| SLSt. Louis Distillery | Saint Charles | MO | Beverage and Tobacco Product Manufacturing312140 | — | ◐ LIKELY ACTIVE |
Sun Chemical St. Charles | Saint Charles | IL | Chemical Manufacturing325910 | 20-99 | ◐ LIKELY ACTIVE |
| TWThe Wine Garden LLC | Saint Charles | MO | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| TSTwo Saints Winery | Saint Charles | IA | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| URUnited Refrigeration INC | Saint Charles | MO | Machinery Manufacturing333415 | — | ◐ LIKELY ACTIVE |
| VSVortex Surgical, INC | Saint Charles | MO | Miscellaneous Manufacturing339112 | — | ◐ LIKELY ACTIVE |
| VSVortex Surgical Inc Research Park | Saint Charles | MO | Miscellaneous Manufacturing339112 | 20-99 | ◐ LIKELY ACTIVE |
| WOWinery of the Little Hills | Saint Charles | MO | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| MBModern Business Interiors LLC | Saint Charles | MO | Furniture and Related Product Manufacturing337214 | — | ▲ REPORTED CLOSED |
| 3A38th Avenue Realty, LLC | Saint Charles | IL | Plastics and Rubber Products Manufacturing326111 | — | ◇ UNVERIFIED |
| ABAcco Brands INC | Saint Charles | IL | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| AIAll-states INC. | Saint Charles | IL | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| AIAyers Investment Group LLC | Saint Charles | IL | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| BIBema, Inc. | Saint Charles | IL | Plastics and Rubber Products Manufacturing326111 | — | ◇ UNVERIFIED |
| BIBright Interiors Studio LLC | Saint Charles | IL | Furniture and Related Product Manufacturing337110 | — | ◇ UNVERIFIED |
| CICartonCraft, Inc. | Saint Charles | IL | Paper Manufacturing322211 | — | ◇ UNVERIFIED |
| CSCF Span LLC | Saint Charles | MI | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| CHChesapeake Holdings LLC | Saint Charles | MN | Primary Metal Manufacturing331523 | — | ◇ UNVERIFIED |
| CCChicago Coding Systems, Inc. | Saint Charles | IL | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| CSC&s Specialties, INC. | Saint Charles | MO | Transportation Equipment Manufacturing336311 | — | ◇ UNVERIFIED |
| CMCustom Metal Products LLC | Saint Charles | MO | Miscellaneous Manufacturing339920 | — | ◇ UNVERIFIED |
| DSDiamond Spray Painting INC | Saint Charles | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| DIDippit, INC. Aka Prolong Tool | Saint Charles | IL | Fabricated Metal Product Manufacturing332811 | — | ◇ UNVERIFIED |
| EGEisen Group | Saint Charles | MO | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| EIEnvirolastech, Inc. | Saint Charles | MN | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| EMExcel Manufacturing INC | Saint Charles | MN | Machinery Manufacturing333922 | — | ◇ UNVERIFIED |
| FLFig & Lyles Bakery LLC | Saint Charles | MO | Food Manufacturing311811 | — | ◇ UNVERIFIED |
| GEGalloway Equipment, Inc. | Saint charles | IL | Plastics and Rubber Products Manufacturing326111 | — | ◇ UNVERIFIED |
| GBGame Bibs, Inc. | Saint Charles | IL | Apparel Manufacturing315990 | — | ◇ UNVERIFIED |
| GRGarden Row Foods, INC. | Saint Charles | IL | Food Manufacturing311942 | — | ◇ UNVERIFIED |
| GEGayton Enterprises | Saint Charles | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| GSGindo's Spice of Life, LLC | Saint Charles | IL | Food Manufacturing311941 | — | ◇ UNVERIFIED |
| HCHeartland Coca-cola Bottling Company | Saint Charles | MO | Beverage and Tobacco Product Manufacturing312111 | — | ◇ UNVERIFIED |