| MPMidwest Premix - Jefferson City | Jefferson City | MO | — | ◇ UNVERIFIED |
| MPMiramar Plant 33 | San Diego | CA | — | ◇ UNVERIFIED |
| MCMm Cleburne Ready Mix | Cleburne | TX | — | ◇ UNVERIFIED |
 Mmc Materials | Batesville | MS | — | ◇ UNVERIFIED |
| Mmc Materials INC | Hattiesburg | MS | — | ◇ UNVERIFIED |
| Mmc Materials INC | Coldwater | MS | — | ◇ UNVERIFIED |
| Mmc Materials INC | Saltillo | MS | — | ◇ UNVERIFIED |
| Mmc Materials INC - Cleveland | Cleveland | MS | — | ◇ UNVERIFIED |
| Mmc Materials Inc, Ellisville | Ellisville | MS | — | ◇ UNVERIFIED |
| Mmc Materials INC - Forest | Forest | MS | — | ◇ UNVERIFIED |
| Mmc Materials, INC. Greenville - 30501 | Greenville | MS | — | ◇ UNVERIFIED |
| Mmc Materials Inc, Horn Lake 30204 | Horn Lake | MS | — | ◇ UNVERIFIED |
| Mmc Materials Inc, Lakeland Drive 30106 | Brandon | MS | — | ◇ UNVERIFIED |
| Mmc Materials INC - Mcintosh Plant | Mc Intosh | AL | — | ◇ UNVERIFIED |
| Mmc Materials INC - Olive Branch Plant | Memphis | TN | — | ◇ UNVERIFIED |
| Mmc Materials, INC. - Rossville Plant | Rossville | TN | — | ◇ UNVERIFIED |
| Mmc Materials, INC - South Parkway Plant | Memphis | TN | — | ◇ UNVERIFIED |
| Mmc Materials Inc, Starkville 30854 | Starkville | MS | — | ◇ 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 |
| MBMohawk Batch Plant | Tulsa | OK | — | ◇ UNVERIFIED |
| MCMolalla Concrete | Molalla | OR | — | ◇ UNVERIFIED |
| MPMona Pit and Batch Plant | Mona | UT | — | ◇ UNVERIFIED |
| MLMonierlifetile L L C | Brookshire | TX | — | ◇ UNVERIFIED |
| MLMonierlifetile L.l.c. | Henderson | CO | — | ◇ UNVERIFIED |
| MRMontgomery Road Readymix | San Antonio | TX | — | ◇ UNVERIFIED |
| MBMoore Batch Plant | Moore | OK | — | ◇ UNVERIFIED |
| MCMorgan Concrete - Athens 2 | Athens | GA | — | ◇ UNVERIFIED |
| MCMorgan Concrete CO. - Lavonia | Lavonia | GA | — | ◇ UNVERIFIED |
| MCMorgan Concrete Company | Westminster | SC | — | ◇ UNVERIFIED |
| MCMorgan Concrete CO. - Rabun Gap | Rabun Gap | GA | — | ◇ UNVERIFIED |
| MCMorgan Concrete CO. - Toccoa | Toccoa | GA | — | ◇ UNVERIFIED |
| MCMorgan Concrete - Demorest Plant | Demorest | GA | — | ◇ UNVERIFIED |
| MOMv Orange Rm | Orange | TX | — | ◇ UNVERIFIED |
| MPMykawa Plant | Houston | TX | — | ◇ UNVERIFIED |
| NRNational Ready Mix Concrete | Moorpark | CA | — | ◇ UNVERIFIED |
| NRNational Ready Mix Concrete | Van Nuys | CA | — | ◇ UNVERIFIED |
| NRNational Ready Mix Concrete CO | Los Angeles | CA | — | ◇ UNVERIFIED |
| NRNational Ready Mix Concrete CO | Santa Clarita | CA | — | ◇ UNVERIFIED |
| NRNational Ready Mix Concrete CO | Irvine | CA | — | ◇ UNVERIFIED |
| NRNational Ready Mix Concrete CO . | Sun Valley | CA | — | ◇ UNVERIFIED |
| NRNational Ready Mix Concrete CO. | Los Angeles | CA | — | ◇ UNVERIFIED |
| NRNational Ready Mixed Concrete CO | Canoga Park | CA | — | ◇ UNVERIFIED |
| NRNational Ready Mixed Concrete CO | Artesia | CA | — | ◇ UNVERIFIED |
| NRNational Ready Mixed Concrete CO | Irwindale | CA | — | ◇ UNVERIFIED |
| NINebco, INC. Dba-kearney Crete and Block CO. | Kearney | NE | — | ◇ UNVERIFIED |
| NRNevada Ready Mix | Las Vegas | NV | — | ◇ UNVERIFIED |
| NRNevada Ready Mix Lone Mountain | Las Vegas | NV | — | ◇ UNVERIFIED |
| NENew England Concrete Products | Amesbury | MA | — | ◇ UNVERIFIED |
| NHNew Hampton Metal Fab | New Hampton | IA | — | ◇ UNVERIFIED |
| NCNewington Concrete Corporation - Gainesville Plant | Gainesville | VA | — | ◇ UNVERIFIED |
| NNNew Ngc INC | Garden City | GA | — | ◇ UNVERIFIED |
| NNNew Ngc INC. D/b/a National Gypsum Compa | Clinton | IN | — | ◇ UNVERIFIED |
| NLNhmf, LLC | Columbus | OH | — | ◇ UNVERIFIED |
| NPNissan Plant 10 | Smyrna | TN | — | ◇ UNVERIFIED |
| NBNorth Broadway Batch Plant | Oklahoma City | OK | — | ◇ UNVERIFIED |
| NNorthfield-indianapolis | Indianapolis | IN | — | ◇ UNVERIFIED |
| NSNorth Salt Lake Batch Plant | Salt Lake City | UT | — | ◇ UNVERIFIED |
| NCNucor CORP - Darlington Plant | Darlington | SC | — | ◇ UNVERIFIED |
| NLNusfc, LLC | Medley | FL | — | ◇ UNVERIFIED |
| NNyack | Valley Cottage | NY | — | ◇ UNVERIFIED |
| OROconnor Ready Mix Plant 11 | San Antonio | TX | — | ◇ UNVERIFIED |
| OFOdessa Facility | Odessa | FL | — | ◇ UNVERIFIED |
| OOldcastle | Kenosha | WI | — | ◇ UNVERIFIED |
| OOldcastle | Morgan Hill | CA | — | ◇ UNVERIFIED |
| OOldcastle | Elgin | IL | — | ◇ UNVERIFIED |
| OOldcastle | Lockport | IL | — | ◇ UNVERIFIED |
| OCOld Castle - Acworth | Acworth | GA | — | ◇ UNVERIFIED |
| OAOldcastle Adams Products | Clarksville | TN | — | ◇ UNVERIFIED |
| OAOldcastle Apg South | Pompano Beach | FL | — | ◇ UNVERIFIED |
| OAOldcastle Apg South, INC | Pensacola | FL | — | ◇ UNVERIFIED |
| OAOldcastle Architectural West INC | Rosenberg | TX | — | ◇ UNVERIFIED |
| OAOldcastle Architectural West INC | Dallas | TX | — | ◇ UNVERIFIED |
| OAOldcastle Architectural West INC | Austin | TX | — | ◇ UNVERIFIED |
| OCOld Castle Infrastructure | Fuquay Varina | NC | — | ◇ UNVERIFIED |
| OIOldcastle Infrastructure | Topeka | KS | — | ◇ UNVERIFIED |
| OIOldcastle Infrastructure | Platteville | CO | — | ◇ UNVERIFIED |
 Oldcastle Infrastructure INC. | Fredericksburg | VA | — | ◇ UNVERIFIED |
| Oldcastle Infrastructure INC. - Courtland | Courtland | MN | — | ◇ UNVERIFIED |
| OPOldcastle Precast | Kalamazoo | MI | — | ◇ UNVERIFIED |
| OPOldcastle Precast | Lakeside | CA | — | ◇ UNVERIFIED |
| OPOldcastle Precast | Lebanon | TN | — | ◇ UNVERIFIED |
| OPOldcastle Precast | Houston | TX | — | ◇ UNVERIFIED |
| OPOldcastle Precast | Mansfield | TX | — | ◇ UNVERIFIED |
| OPOldcastle Precast Brookshire Plant | Brookshire | TX | — | ◇ UNVERIFIED |
| OPOldcastle Precast INC | Littleton | CO | — | ◇ UNVERIFIED |
| OPOldcastle Precast INC | Orlando | FL | — | ◇ UNVERIFIED |
| OPOldcastle Precast INC | Middle Island | NY | — | ◇ UNVERIFIED |
| OPOldcastle Precast INC | Chandler | AZ | — | ◇ UNVERIFIED |
| OPOldcastle Precast INC | Medley | FL | — | ◇ UNVERIFIED |
| OPOldcastle Precast INC | North Fort Myers | FL | — | ◇ UNVERIFIED |
| OPOldcastle Precast INC. | Edgewood | MD | — | ◇ UNVERIFIED |
| OPOldcastle Precast, INC. - Bellingham | Bellingham | WA | — | ◇ UNVERIFIED |
| OPOldcastle Precast INC - Concord | Concord | NC | — | ◇ UNVERIFIED |
| OPOldcastle Precast, INC. - Jacksonvillesp | Jacksonville | FL | — | ◇ UNVERIFIED |
| OPOldcastle Precast Incorported | Rehoboth | MA | — | ◇ UNVERIFIED |
| OPOldcastle Precast, INC. - Tallahasseesp | Midway | FL | — | ◇ UNVERIFIED |
| OPOldcastle Precast San Antonio Plant | San Antonio | TX | — | ◇ UNVERIFIED |
