| MCMeuth Construction Supply | Henderson | KY | — | ◇ UNVERIFIED |
| MCMeuth Construction Supply - Eddyville Plant | Eddyville | KY | — | ◇ UNVERIFIED |
| MCMeuth Construction Supply INC - Morganfield | Morganfield | KY | — | ◇ UNVERIFIED |
| MCMeuth Construction Supply – Owensboro Plant | Owensboro | KY | — | ◇ UNVERIFIED |
| MCMeuth Construction Supply - Sebree Plant | Sebree | KY | — | ◇ UNVERIFIED |
| MRMexia Ready Mix | Mexia | TX | — | ◇ UNVERIFIED |
| MMMeyer Material | Mchenry | IL | — | ◇ UNVERIFIED |
| MMMeyer Material CO | Northbrook | IL | — | ◇ UNVERIFIED |
| MMMeyer Material CO | Huntley | IL | — | ◇ UNVERIFIED |
| MMMeyer Material CO | Lake Zurich | IL | — | ◇ UNVERIFIED |
| MMMeyer Material CO | Marengo | IL | — | ◇ UNVERIFIED |
| MMMeyer Material CO | Park City | IL | — | ◇ UNVERIFIED |
| MMMeyer Material CO | Bannockburn | IL | — | ◇ UNVERIFIED |
| MMMeyer Material CO | Mchenry | IL | — | ◇ UNVERIFIED |
| MMMeyer Material CO | Harvard | IL | — | ◇ UNVERIFIED |
| MMMeyer Material CO | Belvidere | IL | — | ◇ UNVERIFIED |
| MMMeyer Material CO | Channahon | IL | — | ◇ UNVERIFIED |
| MMMeyer Material CO | Saint Charles | IL | — | ◇ UNVERIFIED |
| MMMeyer Material CO | Loves Park | IL | — | ◇ UNVERIFIED |
| MMMeyer Material CO | Crystal Lake | IL | — | ◇ UNVERIFIED |
| MMMeyer Material CO #24 | Lee | IL | — | ◇ UNVERIFIED |
| MMMeyer Material CO - Elgin Yard 41 | Elgin | IL | — | ◇ UNVERIFIED |
| MMMeyer Materials CO | Machesney Park | IL | — | ◇ UNVERIFIED |
 Meyer Utility Structures LLC | Fort Pierce | FL | — | ◇ UNVERIFIED |
| MBMichels Batch Plant - Berthold | Berthold | ND | — | ◇ UNVERIFIED |
| MBMichels Batch Plant - Grandin | Grandin | ND | — | ◇ UNVERIFIED |
| MBMicro-lite - Buffalo (handling Facility) | Buffalo | KS | — | ◇ UNVERIFIED |
| MLMicro-lite, L.l.c. | Buffalo | KS | — | ◇ UNVERIFIED |
| MUMicronized Ultra Tech INC | Richmond | CA | — | ◇ UNVERIFIED |
| MAMid Atlantic Terminals Shutdown | Chesapeake | VA | — | ◇ UNVERIFIED |
| MCMid Continent Concrete Company | Edmond | OK | — | ◇ UNVERIFIED |
| MCMiddlesboro Concrete Plant | Middlesboro | KY | — | ◇ UNVERIFIED |
| MRMiddletown Ready Mix Concrete Plant | Townsend | DE | — | ◇ UNVERIFIED |
| MIMid Il Concrete INC Dba Clark County Ready Mix | Martinsville | IL | — | ◇ UNVERIFIED |
| MCMid-illinois Concrete | Greenville | IL | — | ◇ UNVERIFIED |
| MIMid Illinois Concrete - Effingham Ready Mix | Effingham | IL | — | ◇ UNVERIFIED |
| MCMid-illinois Concrete INC | Effingham | IL | — | ◇ UNVERIFIED |
| MCMid-illinois Concrete INC | Olney | IL | — | ◇ UNVERIFIED |
| MCMid-illinois Concrete INC | Charleston | IL | — | ◇ UNVERIFIED |
| MCMid-illinois Concrete INC | Mattoon | IL | — | ◇ UNVERIFIED |
| MCMid-illinois Concrete INC | Ramsey | IL | — | ◇ UNVERIFIED |
| MCMid-illinois Concrete INC | Altamont | IL | — | ◇ UNVERIFIED |
| MCMidland Concrete Products | Hiawatha | IA | — | ◇ UNVERIFIED |
| MTMidland Tank Farm Crude Oil Storage Facility | Midland | TX | — | ◇ UNVERIFIED |
| MPMidlothian Plant | Midlothian | TX | — | ◇ UNVERIFIED |
| MCMid-minnesota Concrete LLC | Annandale | MN | — | ◇ UNVERIFIED |
| MCMid-missouri Concrete | Montgomery City | MO | — | ◇ UNVERIFIED |
| MCMidstate Concrete Products, LLC. | Santa Maria | CA | — | ◇ UNVERIFIED |
| MMMid-state Mobile Concrete INC | Hermitage | TN | — | ◇ UNVERIFIED |
| MRMid-state Ready Mix | Columbia | KY | — | ◇ UNVERIFIED |
| MRMidtown Redi Mix | Westville | IL | — | ◇ UNVERIFIED |
| MMMid-way Materials, INC. | Camden | TN | — | ◇ UNVERIFIED |
| MBMidwest Block & Brick-kansas City Plant | Kansas City | MO | — | ◇ UNVERIFIED |
| MCMidwest Concrete - Abilene #2 (swpp) | Abilene | KS | — | ◇ UNVERIFIED |
| MCMidwest Concrete - Charlson Road (swpp) | Manhattan | KS | — | ◇ UNVERIFIED |
| MCMidwest Concrete Materials - Holton Ready Mix Concrete Plant (water) | Holton | KS | — | ◇ UNVERIFIED |
| MCMidwest Concrete Materials INC | Salina | KS | — | ◇ UNVERIFIED |
| MCMidwest Concrete Materials - Lawrence (e 23rd)(air) | Lawrence | KS | — | ◇ UNVERIFIED |
| MCMidwest Concrete Materials - Manhattan | Manhattan | KS | — | ◇ UNVERIFIED |
| MCMidwest Concrete Materials - New Strawn Ready Mix Plant (water) | New Strawn | KS | — | ◇ UNVERIFIED |
| MCMidwest Concrete Materials - Osage City Ready Mix Concrete Plant (water) | Osage City | KS | — | ◇ UNVERIFIED |
| MCMidwest Concrete - Perry (swpp) | Perry | KS | — | ◇ UNVERIFIED |
| MCMidwest Concrete - Wamego | Wamego | KS | — | ◇ UNVERIFIED |
| MMMidwest Mobile Mix LLC | Bishop | TX | — | ◇ UNVERIFIED |
| MPMidwest Perlite Company, Inc. | Appleton | WI | — | ◇ UNVERIFIED |
| MPMidwest Products-clay Center (new) | Clay Center | KS | — | ◇ UNVERIFIED |
| MPMidwest Products - Hanover Plant | Hanover | KS | — | ◇ UNVERIFIED |
| MPMidwest Products LLC | Hanover | KS | — | ◇ UNVERIFIED |
| MPMidwest Products - Washington Plant | Washington | KS | — | ◇ UNVERIFIED |
| MRMidwest Ready Mix | Hiawatha | KS | — | ◇ UNVERIFIED |
| MRMidwest Ready-mix and Building Supplies, INC. | Sabetha | KS | — | ◇ UNVERIFIED |
| MRMidwest Ready Mix & Building-hiawatha | Hiawatha | KS | — | ◇ UNVERIFIED |
| MRMidwest Ready Mix & Building Supplies | Sabetha | KS | — | ◇ UNVERIFIED |
| MRMidwest Ready Mix - Sabetha | Sabetha | KS | — | ◇ UNVERIFIED |
 Miles Sand & Gravel CO | Auburn | WA | — | ◇ UNVERIFIED |
| Miles Sand & Gravel CO | Puyallup | WA | — | ◇ UNVERIFIED |
| Miles Sand & Gravel Company | Everett | WA | — | ◇ UNVERIFIED |
| Miles Sand & Gravel Company Poulsbo Facility | Poulsbo | WA | — | ◇ UNVERIFIED |
| MCMilestone Contractors, L.p. | New Haven | IN | — | ◇ UNVERIFIED |
| MLM-i LLC - Amelia Grinding & Bulk Storage Facility | Amelia | LA | — | ◇ UNVERIFIED |
| MCMill Creek Concrete Batch Plant | Dallas | TX | — | ◇ UNVERIFIED |
| MAMiller and Sons Excavating | Heppner | OR | — | ◇ UNVERIFIED |
| MCMiller Contracting Services INC | Dahlgren | IL | — | ◇ UNVERIFIED |
| MMMillers Mini Mix Concrete INC | Hillsboro | OR | — | ◇ UNVERIFIED |
| MRMillers Ready-mix LLC | South Chicago Heights | IL | — | ◇ UNVERIFIED |
| MCMillington Concrete | Coos Bay | OR | — | ◇ UNVERIFIED |
| MBMillstone Bangert Concret | Saint Charles | MO | — | ◇ UNVERIFIED |
| MBMillstone Bangert Inc-chesterfield (mbi #6) | Chesterfield | MO | — | ◇ UNVERIFIED |
| MBMillstone Bangert Inc-missouri Bottom Road Plant | Saint Louis | MO | — | ◇ UNVERIFIED |
| MWMillstone Weber | Mascoutah | IL | — | ◇ UNVERIFIED |
| MWMillstone Weber - Concrete Plant #7001 | Denver | CO | — | ◇ UNVERIFIED |
| MWMillstone Weber Portable Concrete Batch Plant ** Inactive ** | Jacksonville | NC | — | ◇ UNVERIFIED |
| MQMillville Quarry | Baltimore | MD | — | ◇ UNVERIFIED |
| MLMinden Lumber & Concrete INC | Minden | NE | — | ◇ UNVERIFIED |
| MWMineral Wells Cbp | Mineral Wells | TX | — | ◇ UNVERIFIED |
| MCMini Concrete Ne Plant | El Paso | TX | — | ◇ UNVERIFIED |
| MCMission Concrete Products | Shawneetown | IL | — | ◇ UNVERIFIED |
| MRMission Ready Mix - Goleta | Goleta | CA | — | ◇ UNVERIFIED |
| MRMission Ready Mix Plant | Mission | TX | — | ◇ UNVERIFIED |
| MVMission Valley Concrete | Pablo | MT | — | ◇ UNVERIFIED |
