| MPMetromont Prestress Company | Charlotte | NC | — | ◇ UNVERIFIED |
| MMetromont:whitehorse | Greenville | SC | — | ◇ UNVERIFIED |
| MRMetro Ready Mix Concrete, INC. | Nashville | TN | — | ◇ UNVERIFIED |
| MCMeuth Construction Supply INC - Hopkinsville Plant | Hopkinsville | KY | — | ◇ UNVERIFIED |
| MMMeyer Material CO | Mchenry | IL | — | ◇ UNVERIFIED |
| MMMeyer Material CO | Huntley | IL | — | ◇ UNVERIFIED |
| MMMeyer Material CO | Belvidere | IL | — | ◇ UNVERIFIED |
| MMMeyer Material CO | Northbrook | IL | — | ◇ UNVERIFIED |
| MMMeyer Material CO | Harvard | IL | — | ◇ UNVERIFIED |
| MMMeyer Material CO | Marengo | IL | — | ◇ UNVERIFIED |
| MMMeyer Material CO Kenosha 20 | Kenosha | WI | — | ◇ UNVERIFIED |
| MMMeyer Material CO Kenosha 40 | Kenosha | WI | — | ◇ UNVERIFIED |
| MMMeyer Material CO Middlebury Ready Mix Plant | Middlebury | IN | — | ◇ UNVERIFIED |
| MMMeyer Material Company | Milwaukee | WI | — | ◇ UNVERIFIED |
| MMMeyer Material CO Warsaw Ready Mix Plant | Warsaw | IN | — | ◇ UNVERIFIED |
| MPMichels Paving CO INC | Florence | KY | — | ◇ UNVERIFIED |
| MAMichigan Asphalt | Middleville | MI | — | ◇ UNVERIFIED |
 Michigan Paving and Materials, Klett Asphalt Plant | Paw Paw | MI | — | ◇ UNVERIFIED |
| MPMichigan Paving & Materials CO. - Battle Creek | Galesburg | MI | — | ◇ UNVERIFIED |
| MPMichigan Paving & Materials - Coldwater Plant | Coldwater | MI | — | ◇ UNVERIFIED |
| MCMickelsen Construction 00310 | Portable | ID | — | ◇ UNVERIFIED |
| MCMickelsen Construction-asphalt Sales | Pocatello | ID | — | ◇ UNVERIFIED |
| MAMid America Equipment Services | Hurst | TX | — | ◇ UNVERIFIED |
| MAMid America Redi Mix - Hutchinson Plant | South Hutchinson | KS | — | ◇ UNVERIFIED |
| MAMiddlesex Asphalt, L.l.c. | Leesburg | FL | — | ◇ UNVERIFIED |
| MHMid Hudson Concrete | Cold Spring | NY | — | ◇ UNVERIFIED |
| MIMid Il Concrete INC Dba Clark County Ready Mix | Martinsville | IL | — | ◇ UNVERIFIED |
| MIMid Illinois Concrete - Effingham Ready Mix | Effingham | IL | — | ◇ UNVERIFIED |
| MCMid-illinois Concrete INC | Effingham | IL | — | ◇ UNVERIFIED |
| MAMidland Asphalt Materials, INC. | Bloomsburg | PA | — | ◇ UNVERIFIED |
| MAMidland Asphalt Materials, INC. | Woodland | PA | — | ◇ UNVERIFIED |
| MSMidland South Plant | Midland | TX | — | ◇ UNVERIFIED |
| MPMidlothian Plant | Midlothian | TX | — | ◇ UNVERIFIED |
| MHMid-minnesota Hot Mix INC | Annandale | MN | — | ◇ UNVERIFIED |
| MHMid-minnesota Hot Mix INC - Kimball | Kimball | MN | — | ◇ UNVERIFIED |
| MHMid-minnesota Hot Mix INC - Litchfield | Litchfield | MN | — | ◇ UNVERIFIED |
| MPMid-south Paving, INC. | Evergreen | AL | — | ◇ UNVERIFIED |
| MPMidsouth Paving INC | Pensacola | FL | — | ◇ UNVERIFIED |
| MPMidsouth Paving INC | Brantley | AL | — | ◇ UNVERIFIED |
| MPMidsouth Paving, INC. | Ohatchee | AL | — | ◇ UNVERIFIED |
| MPMidsouth Paving INC. East Thomas Asphalt Plant | Birmingham | AL | — | ◇ UNVERIFIED |
| MPMidsouth Paving INC. - Flomaton Asphalt Plant | Flomaton | AL | — | ◇ UNVERIFIED |
| MPMidsouth Paving INC. Tarrant Asphalt Plant | Birmingham | AL | — | ◇ UNVERIFIED |
| MSMid State Materials Company* | Cookeville | TN | — | ◇ UNVERIFIED |
| MMMid-way Materials, INC. | Mckenzie | TN | — | ◇ UNVERIFIED |
| MAMidwest Asphalt CORP | Hastings | MN | — | ◇ UNVERIFIED |
| MCMidwest Concrete - Abilene #2 (swpp) | Abilene | KS | — | ◇ UNVERIFIED |
| MCMidwest Concrete - Charlson Road (swpp) | Manhattan | KS | — | ◇ UNVERIFIED |
| MCMidwest Concrete-junction City Ready Mix (swpp) | Junction City | KS | — | ◇ UNVERIFIED |
| MCMidwest Concrete Materials - Forbes Field Concrete Plant (water) | Topeka | KS | — | ◇ UNVERIFIED |
