| HSHallmark Stone | Fenton | — | ◇ UNVERIFIED |
| HSHamm St. Joseph Ready-mix Plant | Saint Joseph | — | ◇ UNVERIFIED |
| HIHarbisonwalker International, INC Fulton Brick Plant | Fulton | — | ◇ UNVERIFIED |
| HIHarbison-walker International, INC. Vandalia Plant | Vandalia | — | ◇ UNVERIFIED |
| HSHegger & Sons Mirror CO. | Saint Louis | — | ◇ UNVERIFIED |
| HIHolcim (us) INC Ste Genevieve Plant | Bloomsdale | — | ◇ UNVERIFIED |
| IRIdeal Ready Mix Inc-unionville | Unionville | — | ◇ UNVERIFIED |
| IIImrie-gielow INC | Saint Louis | — | ◇ UNVERIFIED |
| IGInnovative Group Holdings LLC | St Louis | — | ◇ UNVERIFIED |
| JSJoplin Stoneworks LLC | Joplin | — | ◇ UNVERIFIED |
| JSJoplin Stoneworks LLC | Duenweg | — | ◇ UNVERIFIED |
| JLJoseph L Pohl Contractor | Nevada | — | ◇ UNVERIFIED |
| KTKdh Test Cedri Facility | Jefferson City | — | ◇ UNVERIFIED |
| KPKienstra Precast | Bridgeton | — | ◇ UNVERIFIED |
| KRKienstra Ready Mix | Florissant | — | ◇ UNVERIFIED |
| KMKirchner Manufacturing | Bridgeton | — | ◇ UNVERIFIED |
| KKKnights Keep, LLC | Highlandville | — | ◇ UNVERIFIED |
| LBLafarge Building Materials Inc-springfield Terminal | Springfield | — | ◇ UNVERIFIED |
| LNLafarge North America Inc-arlington Rm Plant | Kansas City | — | ◇ UNVERIFIED |
| LNLafarge North America Inc-page Plant | Maryland Heights | — | ◇ UNVERIFIED |
| LSLoch Sand & Construction Co-kci Airport | Kansas City | — | ◇ UNVERIFIED |
| MMMaster Marble INC Holden | Holden | — | ◇ UNVERIFIED |
| MHMasterstone Hardscapes LLC | Saint Peters | — | ◇ UNVERIFIED |
| MPMaterials Packaging CORP | Harrisonville | — | ◇ UNVERIFIED |
| MMMetro Marble & Granite, LLC | Columbia | — | ◇ UNVERIFIED |
| MMMetro Materials Inc-chesterfield | Chesterfield | — | ◇ UNVERIFIED |
| MMMetro Materials Inc-st Louis City | Saint Louis | — | ◇ UNVERIFIED |
| MCMid-america Concrete Applications, LLC | Lees Summit | — | ◇ UNVERIFIED |
| MMMidland Marble & Granite, LLC | Independence | — | ◇ UNVERIFIED |
| MBMillstone Bangert Concret | Saint Charles | — | ◇ UNVERIFIED |
| MBMillstone Bangert Inc-missouri Bottom Road Plant | Saint Louis | — | ◇ UNVERIFIED |
| MWMillstone Weber - Port Batch Plant #7001 | Saint Charles | — | ◇ UNVERIFIED |
| MRMissouri Refractories | Pevely | — | ◇ UNVERIFIED |
| MWMissouri Wilbert Vault CO. INC. | Moberly | — | ◇ UNVERIFIED |
| MMocon | Fulton | — | ◇ UNVERIFIED |
| MIMo-con Inc-millersburg | Fulton | — | ◇ UNVERIFIED |
| MFMoffitt Family Candle Glass Artist | Osage Beach | — | ◇ UNVERIFIED |
| MLMonierlifetile L L C | Kansas City | — | ◇ UNVERIFIED |
| MEMount Etna Investments, Inc. | Joplin | — | ◇ UNVERIFIED |
| NCNeosho Concrete Products Company | Neosho | — | ◇ UNVERIFIED |
| NSNew Surface Llc-east 12th | Kansas City | — | ◇ UNVERIFIED |
| NANorth American Steel INC. | Kansas City | — | ◇ UNVERIFIED |
| NVNorwalk Vault CO. of Missouri INC. | Saint Louis | — | ◇ UNVERIFIED |
| OCOsage County Industries | Linn | — | ◇ UNVERIFIED |
| OBOzark Building Materials-plant 6 | Maryland Heights | — | ◇ UNVERIFIED |
| OROzark Ready Mix CO Inc-eldon - Plant 1 | Eldon | — | ◇ UNVERIFIED |
| OROzark Ready Mix CO Inc-plant #2 Osage Beach | Osage Beach | — | ◇ UNVERIFIED |
| OROzark Ready Mix - Eldon | Eldon | — | ◇ UNVERIFIED |
| OROzark Ready Mix - Linn Creek | Linn Creek | — | ◇ UNVERIFIED |
| OROzark Ready Mix - Sunrise Beach | Sunrise Beach | — | ◇ UNVERIFIED |
