| DDDawson Dodd Heating & Cooling | Saint Louis | — | ◇ UNVERIFIED |
| DTDetroit Tool Engineering | Lebanon | — | ◇ UNVERIFIED |
| DTDetrot Tool Engineering-bishop Building | Lebanon | — | ◇ UNVERIFIED |
| DDrumtech | Saint Louis | — | ◇ UNVERIFIED |
| ECEfco CORP Plant Ii | Monett | — | ◇ UNVERIFIED |
| EBElectro Bumper Plating-electro Bumper Plating | Kansas City | — | ◇ UNVERIFIED |
| EAEngineered Air Systems Inc-price | Saint Louis | — | ◇ UNVERIFIED |
| EIEnvirologics INC Dba Blast It Clean | Kansas City | — | ◇ UNVERIFIED |
| FFFinal Finish-kansas City | Kansas City | — | ◇ UNVERIFIED |
| FCFlow Controls Former | Maryland Heights | — | ◇ UNVERIFIED |
| FMFord Motor Co-hazelwood | Hazelwood | — | ◇ UNVERIFIED |
| FSFour Star Finishing CO INC | Saint Louis | — | ◇ UNVERIFIED |
| FSFour Star Finishing CO Inc-four Star Finishing CO INC | Saint Louis | — | ◇ UNVERIFIED |
| GCGateway Company-graham | Saint Louis | — | ◇ UNVERIFIED |
| GSGoeke Sandblasting | Saint Charles | — | ◇ UNVERIFIED |
| GGreif-fenton-fenton | Fenton | — | ◇ UNVERIFIED |
 Ground Effects LLC | Kansas City | — | ◇ UNVERIFIED |
| HSHavens Steel Company | Kansas City | — | ◇ UNVERIFIED |
| HSHeckert Systems LLC | Kansas City | — | ◇ UNVERIFIED |
| HHH & H Farm Products Manufacturing | Bolivar | — | ◇ UNVERIFIED |
| HPHill Plating Incorporated | Springfield | — | ◇ UNVERIFIED |
| H1Holland 1916 | North Kansas City | — | ◇ UNVERIFIED |
| HNHolland Nameplate | North Kansas City | — | ◇ UNVERIFIED |
| HNHolland Nameplate & Engraving Co-holland Nameplate & Engraving CO | Kansas City | — | ◇ UNVERIFIED |
| HAHomer A. Doerr & Sons Plating Company | Saint Louis | — | ◇ UNVERIFIED |
| HOHouse of Metal Enclosures Inc-house of Metal Enclosures INC | Hermann | — | ◇ UNVERIFIED |
| HRH & R Plating Co-h & R Plating CO | Saint Louis | — | ◇ UNVERIFIED |
| HAHydro Aluminum North America Central Region Cassville Plant | Cassville | — | ◇ UNVERIFIED |
| IEIndustrial Enterpries INC | Jefferson City | — | ◇ UNVERIFIED |
| JPJackson Plating & Polishing INC | Kansas City | — | ◇ UNVERIFIED |
| JSJ S Alberici Construction | Saint Louis | — | ◇ UNVERIFIED |
| KTKc Tank | Kansas City | — | ◇ UNVERIFIED |
| KMKeller Mfg-keller Mfg | Saint Louis | — | ◇ UNVERIFIED |
| KKelpro | Sikeston | — | ◇ UNVERIFIED |
| KBKickham Boiler & Engineering | Saint Louis | — | ◇ UNVERIFIED |
| KCKnappco CORP | Riverside | — | ◇ UNVERIFIED |
| KFKoppel Fabrication INC | Sweet Springs | — | ◇ UNVERIFIED |
| KBKupferer Brothers-st Louis | Saint Louis | — | ◇ UNVERIFIED |
| LTLakeside Tech Solutions LLC | Monroe City | — | ◇ UNVERIFIED |
| LMLeonards Metal INC - Mueller Road Plant | Saint Charles | — | ◇ UNVERIFIED |
| LCLoren Cook Co-barnes St Plant | Springfield | — | ◇ UNVERIFIED |
 Lowell Manufacturing | Saint Louis | — | ◇ UNVERIFIED |
| MLMachine Laboratory LLC | Chesterfield | — | ◇ UNVERIFIED |
| MHMack Hils, INC. | Moberly | — | ◇ UNVERIFIED |
| MIMammoth INC | Springfield | — | ◇ UNVERIFIED |
| MTMapp Technologies, L.l.c. | Joplin | — | ◇ UNVERIFIED |
| MBMar Bal INC | Cuba | — | ◇ UNVERIFIED |
| MMMarmic Metal Treating | Saint Charles | — | ◇ UNVERIFIED |
| MTMarquette Tool & Die | Saint Louis | — | ◇ UNVERIFIED |
| MTMast Technology | Independence | — | ◇ UNVERIFIED |
