| LMLafrance Manufacturing Company | Maryland Heights | MO | Petroleum and Coal Products Manufacturing324191 | 1-19 | ◇ UNVERIFIED |
| CCChevron Chemical CO - Maryland Heights | Maryland Heights | MO | Chemical Manufacturing325320 | — | ◇ UNVERIFIED |
| CBCott Beverages, INC. | Maryland Heights | MO | Beverage and Tobacco Product Manufacturing312111 | — | ◇ UNVERIFIED |
| DADupont Automotive Technical Service-northline Industrial | Maryland Heights | MO | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| FSFive Star Concrete | Maryland Heights | MO | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| FCFlow Controls Former | Maryland Heights | MO | Fabricated Metal Product Manufacturing332613 | — | ◇ UNVERIFIED |
| FWFred Weber - Concrete Plant 4 | Maryland Heights | MO | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| FWFred Weber Inc-portable Asphalt Plant | Maryland Heights | MO | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| GRGateway Ready Mix Inc-maryland Heights | Maryland Heights | MO | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| KCKeller Crescent Company-keller Crescent Company | Maryland Heights | MO | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| PSPennzoil-quaker State Company (dba Sopus Products) (no Longer Subject to Frp) | Maryland Heights | MO | Petroleum and Coal Products Manufacturing324191 | — | ◇ UNVERIFIED |
| PBPetrofskys Bakery Products-maryland Heights | Maryland Heights | MO | Food Manufacturing311812 | — | ◇ UNVERIFIED |
| WCWest Continental Auto Parts Company | Maryland Heights | MO | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| WMWilco Molding | Maryland Heights | MO | Plastics and Rubber Products Manufacturing326199 | 20-99 | ◇ UNVERIFIED |
| ASAcera Surgical | Maryland Heights | MO | Miscellaneous Manufacturing339112 | — | ◇ UNVERIFIED |
| AIAllon Industries, INC. | Maryland Heights | MO | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| AHApertus Holdings, LLC | Maryland Heights | MO | Chemical Manufacturing325411 | — | ◇ UNVERIFIED |
| APAzar Printing INC. | Maryland Heights | MO | Printing and Related Support Activities323110 | — | ◇ UNVERIFIED |
| BDB & D Trading Worldwide, LLC | Maryland Heights | MO | Computer and Electronic Product Manufacturing334119 | — | ◇ UNVERIFIED |
| BFBeck Flavors Inc | Maryland Heights | MO | Food Manufacturing311930 | — | ◇ UNVERIFIED |
| CPCarlisle Polyurethane Systems | Maryland Heights | MO | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| DCDigital Concepts of Missouri, INC. | Maryland Heights | MO | Computer and Electronic Product Manufacturing334519 | — | ◇ UNVERIFIED |
| DSDNA Servers, Inc | Maryland Heights | MO | Computer and Electronic Product Manufacturing334111 | — | ◇ UNVERIFIED |
| ESEngineered Sales | Maryland Heights | MO | Machinery Manufacturing333611 | — | ◇ UNVERIFIED |
| EPErgosafe Products, LLC | Maryland Heights | MO | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| JPJubilee Promotional Company, INC. | Maryland Heights | MO | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| LNLafarge North America Inc-page Plant | Maryland Heights | MO | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| LCLED Craft, Inc | Maryland Heights | MO | Miscellaneous Manufacturing339950 | — | ◇ UNVERIFIED |
| MSM.b. Sturgis INC. | Maryland Heights | MO | Fabricated Metal Product Manufacturing332912 | — | ◇ UNVERIFIED |
| OBOzark Building Materials-plant 6 | Maryland Heights | MO | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| QLQuest Lithographics Ltd-northline Ind Drive | Maryland Heights | MO | Printing and Related Support Activities323110 | — | ◇ UNVERIFIED |
| RRRidge Runner Outdoors llc | Maryland Heights | MO | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| RCRiver City Litho INC | Maryland Heights | MO | Printing and Related Support Activities323110 | — | ◇ UNVERIFIED |
Rockwell Automation | Maryland Heights | MO | Computer and Electronic Product Manufacturing334519 | — | ◇ UNVERIFIED |
| RPRoncept Properties, LLC | Maryland Heights | MO | Electrical Equipment, Appliance & Component Manufacturing335314 | — | ◇ UNVERIFIED |
| SCStarcco Company, INC. | Maryland Heights | MO | Fabricated Metal Product Manufacturing332311 | — | ◇ UNVERIFIED |
| SIStoneland, INC. | Maryland Heights | MO | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |