| MLMiller & Long Construction INC | Mc Lean | VA | — | ◇ UNVERIFIED |
| MPMiller-mize Precast INC. | Columbus | GA | — | ◇ 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 |
| MWMillstone Weber - Port Batch Plant #7001 | Saint Charles | MO | — | ◇ UNVERIFIED |
| MLMinden Lumber & Concrete INC | Minden | NE | — | ◇ UNVERIFIED |
| MPMineral Processing Specialties Inc. | Springdale | PA | — | ◇ UNVERIFIED |
| MWMineral Wells Cbp | Mineral Wells | TX | — | ◇ UNVERIFIED |
| MCMini Concrete Ne Plant | El Paso | TX | — | ◇ UNVERIFIED |
| MIMinnick Illinois LLC | Joliet | IL | — | ◇ UNVERIFIED |
| MMMinnick Midwest LLC Dba Midwest Tile & Concrete Products | Woodburn | IN | — | ◇ 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 |
| MMMississippi Material Co., INC. | Vicksburg | MS | — | ◇ UNVERIFIED |
| MRMissoula Ready Mix | Missoula | MT | — | ◇ UNVERIFIED |
| MWMissouri Wilbert Vault CO. INC. | Moberly | MO | — | ◇ UNVERIFIED |
| MCMitchell Concrete Pipe CO. INC. | Saginaw | AL | — | ◇ UNVERIFIED |
| MMMix Masters Concrete, INC. | Beulaville | NC | — | ◇ UNVERIFIED |
| MPMix Pro Concrete LLC | Cordova | TN | — | ◇ UNVERIFIED |
| MAMm - Afton Portable Ready-mix | Afton | TX | — | ◇ UNVERIFIED |
| MAMmc Aws Jan 200 | Jackson | MS | — | ◇ UNVERIFIED |
| MRMmci Ready Mix LLC | North Hills | CA | — | ◇ UNVERIFIED |
 Mmc Materials Gulf Coast - Crestview Plant | Crestview | FL | — | ◇ UNVERIFIED |
| Mmc Materials Gulf Coast - Ft Walton Beach Plant | Fort Walton Beach | FL | — | ◇ UNVERIFIED |
| Mmc Materials Gulf Coast, Llc- Amc Portable | Calvert | AL | — | ◇ UNVERIFIED |
| Mmc Materials Gulf Coast LLC - Four Points | Tallahassee | FL | — | ◇ UNVERIFIED |
| Mmc Materials Gulf Coast - Milton Plant | Milton | FL | — | ◇ UNVERIFIED |
| Mmc Materials Gulf Coast - Panama City Plant | Panama City | FL | — | ◇ UNVERIFIED |
| Mmc Materials Gulf Coast - Pensacola Plant | Pensacola | FL | — | ◇ UNVERIFIED |
| Mmc Materials Gulf Coast - Point Washington Plant | Point Washington | FL | — | ◇ UNVERIFIED |
| Mmc Materials Gulf Coast - Port St. Joe Plant | Port Saint Joe | FL | — | ◇ UNVERIFIED |
| Mmc Materials Gulf Coast - Tyndall Plant | Tyndall Afb | FL | — | ◇ UNVERIFIED |
 Mmc Materials INC. | Hartford | AL | — | ◇ UNVERIFIED |
| Mmc Materials, INC. | Luverne | AL | — | ◇ UNVERIFIED |
| Mmc Materials, INC. | Greenville | AL | — | ◇ UNVERIFIED |
| Mmc Materials Inc, Brookhaven | Brookhaven | MS | — | ◇ UNVERIFIED |
| Mmc Materials Inc, Byhalia Plnt | Byhalia | MS | — | ◇ UNVERIFIED |
| Mmc Materials Inc, Clarksdale Plant | Clarksdale | MS | — | ◇ UNVERIFIED |
| Mmc Materials INC - Columbus South | Columbus | MS | — | ◇ UNVERIFIED |
| Mmc Materials Inc, Cordova Plant | Byhalia | MS | — | ◇ UNVERIFIED |
| Mmc Materials Inc, Dundee Wind Farm | Dundee | MS | — | ◇ UNVERIFIED |
| Mmc Materials Inc, Eupora | Eupora | MS | — | ◇ UNVERIFIED |
| Mmc Materials Inc, Grenada 30514 | Grenada | MS | — | ◇ UNVERIFIED |
| Mmc Materials Inc, Hernando Temp Site | Hernando | MS | — | ◇ UNVERIFIED |
| Mmc Materials Inc, Laurel Plant | Laurel | MS | — | ◇ UNVERIFIED |
| Mmc Materials Inc, Lumberton Temp Site | Lumberton | MS | — | ◇ UNVERIFIED |
| Mmc Materials Inc, Oak Grove 30703 | Oak Grove | MS | — | ◇ UNVERIFIED |
| Mmc Materials, INC. - Piperton Plant | Collierville | TN | — | ◇ UNVERIFIED |
| Mmc Materials, Inc.-riverport Plant | Memphis | TN | — | ◇ UNVERIFIED |
| Mmc Materials Inc, Sherman Plant | Sherman | MS | — | ◇ UNVERIFIED |
| Mmc Materials Inc, Vicksburg Rifle Range Road | Vicksburg | MS | — | ◇ UNVERIFIED |
| Mmc Materials Inc, Waynesboro | Waynesboro | MS | — | ◇ UNVERIFIED |
| Mmc Materials, Meridian Arundel Rd | Meridian | MS | — | ◇ UNVERIFIED |
| MCMm - Crandall Rm | Crandall | TX | — | ◇ UNVERIFIED |
| MDMm Decatur Ready Mix | Decatur | TX | — | ◇ UNVERIFIED |
| MRMm -farmersville Rm | Farmersville | TX | — | ◇ UNVERIFIED |
| MHMm - Helotes | Helotes | TX | — | ◇ UNVERIFIED |
| MLMm - Lubbock Ready Mix | Lubbock | TX | — | ◇ UNVERIFIED |
| MOMm - Orange Rm | Orange | TX | — | ◇ UNVERIFIED |
| MPMm - Portable 910 - Dhl Warehouse Building C | Northlake | TX | — | ◇ UNVERIFIED |
| MPMm - Portable 915 Project Maverick | Cleburne | TX | — | ◇ UNVERIFIED |
| MMM & M Precast INC | North East | MD | — | ◇ UNVERIFIED |
| MMM & M Ready Mixed Concrete, INC. | Hixson | TN | — | ◇ UNVERIFIED |
| MYMoab Yard | Moab | UT | — | ◇ UNVERIFIED |
| MRMoberly Ready Mix Company Llc-moberly | Moberly | MO | — | ◇ UNVERIFIED |
| MCMobile Concrete | Mills | WY | — | ◇ UNVERIFIED |
| MCMobile Concrete of Idaho | Boise | ID | — | ◇ UNVERIFIED |
| MCMobile Concrete of Idaho 00544 | Meridian | ID | — | ◇ UNVERIFIED |
| MMMobile Materials Nashville, LLC | Nashville | TN | — | ◇ UNVERIFIED |
| MPMobile Pre Mix-brighton | Brighton, 0.5 Mi Nw of | CO | — | ◇ UNVERIFIED |
| MPMobile Premix Conc.cn | Lone Tree | CO | — | ◇ UNVERIFIED |
| MPMobile Premix Concrete | Henderson | CO | — | ◇ UNVERIFIED |
| MPMobile Premix INC Permit 85lr150 | Fort Collins | CO | — | ◇ UNVERIFIED |
| MRMobile Regional Airport Concrete Batch Plant Location | Mobile | AL | — | ◇ UNVERIFIED |
| MCMobley Concrete Company | Harrisburg | AR | — | ◇ UNVERIFIED |
| MCMoca Concrete Poles INC. | Moca | PR | — | ◇ UNVERIFIED |
| MMocon | Fulton | MO | — | ◇ UNVERIFIED |
| MCMo Concrete | Greenville | IL | — | ◇ UNVERIFIED |
| MIMo-con Inc-millersburg | Fulton | MO | — | ◇ UNVERIFIED |
| MIMo-con Inc-mo-con INC | Fulton | MO | — | ◇ UNVERIFIED |
| MCModern Concrete | Elko | NV | — | ◇ UNVERIFIED |
| MCModern Concrete, INC. | Battle Mountain | NV | — | ◇ UNVERIFIED |
| MTModesto Thc INC | Modesto | CA | — | ◇ UNVERIFIED |
| MRMoeller Ready Mix INC | Meredosia | IL | — | ◇ UNVERIFIED |
| MRMoffat Ready Mix | Craig | CO | — | ◇ UNVERIFIED |
| MRMolalla Redi-mix & Rock Products INC | Molalla | OR | — | ◇ UNVERIFIED |
| MCMolin Concrete Products CO | Lino Lakes | MN | — | ◇ UNVERIFIED |
| MCMolin Concrete Products Company | Anoka | MN | — | ◇ UNVERIFIED |
| MCMoline Consumers CO - R/m Concrete Div | Moline | IL | — | ◇ UNVERIFIED |
| MPMonahans Plant | Monahans | TX | — | ◇ UNVERIFIED |
| MPMonarch Precast Concrete CORP | Allentown | PA | — | ◇ UNVERIFIED |
