| MMMmc Materials Inc, Forest 30301 | Forest | MS | — | ◇ UNVERIFIED |
 Mmc Materials Inc, Grenada 30514 | Grenada | MS | — | ◇ UNVERIFIED |
| MMMmc Materials Inc, Kosciusko 30307 | Kosciusko | MS | — | ◇ UNVERIFIED |
| Mmc Materials Inc, Laurel Plant | Laurel | MS | — | ◇ UNVERIFIED |
| MMMmc Materials Inc, Lincoln County | Brookhaven | MS | — | ◇ UNVERIFIED |
| Mmc Materials Inc, Lumberton Temp Site | Lumberton | MS | — | ◇ UNVERIFIED |
| Mmc Materials INC - Mcintosh Plant | Mc Intosh | AL | — | ◇ UNVERIFIED |
| MMMmc Materials Inc, Newton | Newton | MS | — | ◇ UNVERIFIED |
| Mmc Materials Inc, Oak Grove 30703 | Oak Grove | MS | — | ◇ UNVERIFIED |
| Mmc Materials INC - Olive Branch Plant | Memphis | TN | — | ◇ UNVERIFIED |
| MMMmc Materials Inc, Petal | Petal | MS | — | ◇ UNVERIFIED |
| MMMmc Materials, Inc.-plant 218 Piperton | Piperton | TN | — | ◇ UNVERIFIED |
| MMMmc Materials Inc, Port Gibson | Port Gibson | MS | — | ◇ UNVERIFIED |
| Mmc Materials, Inc.-riverport Plant | Memphis | TN | — | ◇ UNVERIFIED |
| Mmc Materials Inc, Sherman Plant | Sherman | MS | — | ◇ UNVERIFIED |
| MMMmc Materials Inc, Sumrall | Sumrall | MS | — | ◇ UNVERIFIED |
| MMMmc Materials Inc, Union 30304 | Union | MS | — | ◇ UNVERIFIED |
| Mmc Materials Inc, Vicksburg Rifle Range Road | Vicksburg | MS | — | ◇ UNVERIFIED |
| Mmc Materials Inc, Waynesboro | Waynesboro | MS | — | ◇ UNVERIFIED |
| MMMmc Materials Inc, West Point Facility | West Point | MS | — | ◇ UNVERIFIED |
| MMMmc Materials Inc, Yazoo City 30152 | Yazoo | MS | — | ◇ UNVERIFIED |
| Mmc Materials, Meridian Arundel Rd | Meridian | MS | — | ◇ UNVERIFIED |
| MHMm - Helotes | Helotes | TX | — | ◇ UNVERIFIED |
| MHMm Henderson Ready Mix | Henderson | TX | — | ◇ UNVERIFIED |
| MMMm Markum Ready Mix | Fort Worth | TX | — | ◇ UNVERIFIED |
| MMMm Midlothian Eastgate Ready Mix | Midlothian | TX | — | ◇ UNVERIFIED |
| MMMm - Midlothian Railport Rm | Midlothian | TX | — | ◇ UNVERIFIED |
| MTMm Taylor Ready Mix | Thrall | TX | — | ◇ UNVERIFIED |
| MYMoab Yard | Moab | UT | — | ◇ UNVERIFIED |
| MRMoberly Ready Mix Company Llc-moberly | Moberly | MO | — | ◇ UNVERIFIED |
| MCMobile Concrete | Mills | WY | — | ◇ UNVERIFIED |
| MCMobile Concrete, INC. - Jesup Plant | Jesup | GA | — | ◇ UNVERIFIED |
| MCMobile Concrete of Idaho | Boise | ID | — | ◇ UNVERIFIED |
| MCMobile Concrete of Idaho 00544 | Meridian | ID | — | ◇ UNVERIFIED |
| MMMobile Materials Nashville, LLC | Nashville | TN | — | ◇ UNVERIFIED |
| MIMo-con Inc-mo-con INC | Fulton | MO | — | ◇ UNVERIFIED |
| MCModern Concrete Products CO | Louisville | KY | — | ◇ UNVERIFIED |
| MDModern Disposal Services INC | Model City | NY | — | ◇ UNVERIFIED |
| MBMohawk Batch Plant | Tulsa | OK | — | ◇ UNVERIFIED |
| MCMolalla Concrete | Molalla | OR | — | ◇ UNVERIFIED |
| MCMoline Consumers CO - R/m Concrete Div | Moline | IL | — | ◇ UNVERIFIED |
| MPMona Pit and Batch Plant | Mona | UT | — | ◇ UNVERIFIED |
| MCMoniteau County Ready Mix | California | MO | — | ◇ UNVERIFIED |
| MCMonroe Concrete Batch Plant-big Pine Key | Big Pine Key | FL | — | ◇ UNVERIFIED |
| MCMonroe Concrete Products, INC. (toppino Cbp) | Key West | FL | — | ◇ UNVERIFIED |
| MBMontfort Bros INC Block Plant | Fishkill | NY | — | ◇ UNVERIFIED |
| MRMontgomery Road Readymix | San Antonio | TX | — | ◇ UNVERIFIED |
| MRMonticello Ready Mix | Monticello | KY | — | ◇ UNVERIFIED |
| MCMonumental Concrete | Washington | DC | — | ◇ UNVERIFIED |
| MRMoorhouse Ready Mix Inc-carroll | Carroll | IA | — | ◇ UNVERIFIED |
