| LSLone Star Concrete Harold Green Plant | Austin | TX | — | ◇ UNVERIFIED |
| LALos Angeles Plant 15 | Los Angeles | CA | — | ◇ UNVERIFIED |
| LALos Angeles Refinery Carson Plant | Carson | CA | — | ◇ UNVERIFIED |
| LILs Industries | New Bedford | MA | — | ◇ UNVERIFIED |
| LFLucky Friday Mine | Mullan | ID | — | ◇ UNVERIFIED |
| LCLunday-thagard Company | South Gate | CA | — | ◇ UNVERIFIED |
| MRMaddens Ready Mix | Caldwell | ID | — | ◇ UNVERIFIED |
| MRMadill Rmc Plant | Madill | OK | — | ◇ UNVERIFIED |
| MTMagellan Terminals Holdings, LP | Corpus Christi | TX | — | ◇ UNVERIFIED |
| MRManassas Ready Mix Concrete | Manassas | VA | — | ◇ UNVERIFIED |
| MRMandan Refinery | Mandan | ND | — | ◇ UNVERIFIED |
| MCManitou Concrete- Dolomite Products CO | Rochester | NY | — | ◇ UNVERIFIED |
| MRMansfield Ready Mix | Venus | TX | — | ◇ UNVERIFIED |
| MAMarathon Anacortes Refinery | Anacortes | WA | — | ◇ UNVERIFIED |
| MCMarathon - Catlettsburg Refinery | Catlettsburg | KY | — | ◇ UNVERIFIED |
| MLMarathon Louisville Algonquin Refining Terminal | Louisville | KY | — | ◇ UNVERIFIED |
| MPMarathon Petroleum CO LP | Detroit | MI | — | ◇ UNVERIFIED |
| MPMarathon Petroleum CO LP - Louisiana Refining Division - Garyville Refinery | Garyville | LA | — | ◇ UNVERIFIED |
| MPMarathon Petroleum Company LP - Canton Refinery (1576002006) | Canton | OH | — | ◇ UNVERIFIED |
| MPMarathon Petroleum Corporation | Dickinson | ND | — | ◇ UNVERIFIED |
| MPMarathon Petroleum – Salt Lake City Refinery | Salt Lake City | UT | — | ◇ UNVERIFIED |
| MSMarathon St. Paul Park Refinery | Saint Paul Park | MN | — | ◇ UNVERIFIED |
| MCMarshall Concrete Products INC | Minneapolis | MN | — | ◇ UNVERIFIED |
| MMMartin Marietta - 2401 Picadilly Rd | Aurora | CO | — | ◇ UNVERIFIED |
| MMMartin Marietta Arvada Ready Mix | Arvada | CO | — | ◇ UNVERIFIED |
| MMMartin Marietta Castle Rock Ready Mix | Castle Rock | CO | — | ◇ UNVERIFIED |
| MMMartin Marietta Chambers Ready Mix | Aurora | CO | — | ◇ UNVERIFIED |
| MMMartin Marietta - Del Camino Ready Mix | Longmont | CO | — | ◇ UNVERIFIED |
| MMMartin Marietta Materials - Kirby | San Antonio | TX | — | ◇ UNVERIFIED |
| MMMartin Marietta Mtrls - Quivas | Denver | CO | — | ◇ UNVERIFIED |
| MMMartin Marietta Titan Ready Mix | Littleton | CO | — | ◇ UNVERIFIED |
| MMaschmeyer-apollo(blk/rm) | Apollo Beach | FL | — | ◇ UNVERIFIED |
| MCMaschmeyer Concrete Company INC | Lake Park | FL | — | ◇ UNVERIFIED |
| MCMaschmeyer Concrete Company of Florida | West Palm Beach | FL | — | ◇ UNVERIFIED |
| MCMaschmeyer Concrete Company of Florida | Deltona | FL | — | ◇ UNVERIFIED |
| MCMaschmeyer Concrete CO of Florida INC | Casselberry | FL | — | ◇ UNVERIFIED |
| MCMaschmeyer Concrete CO of Florida INC | Orlando | FL | — | ◇ UNVERIFIED |
| MCMaschmeyer Concrete CO of Florida INC | Davenport | FL | — | ◇ UNVERIFIED |
| MCMaschmeyer Concrete - Fort Pierce Plant | Fort Pierce | FL | — | ◇ UNVERIFIED |
| MCMaschmeyer Concrete - Stuart Plant | Stuart | FL | — | ◇ UNVERIFIED |
| MCMaschmeyer Concrete Taft Facility | Orlando | FL | — | ◇ UNVERIFIED |
| MRMaschmeyer-lakeland Rm | Lakeland | FL | — | ◇ UNVERIFIED |
| MRMaschmeyer-loughman Rm | Davenport | FL | — | ◇ UNVERIFIED |
| MRMaschmeyer-melbourne Rm | Melbourne | FL | — | ◇ UNVERIFIED |
| MRMaschmeyer-onsite-universal Rm | Orlando | FL | — | ◇ UNVERIFIED |
| MRMaschmeyer-sligh Rm | Tampa | FL | — | ◇ UNVERIFIED |
| MCMaschmeyer-st. Cloud Rm | Saint Cloud | FL | — | ◇ UNVERIFIED |
| MMaschmeyer-vero(blk-rm) | Vero Beach | FL | — | ◇ UNVERIFIED |
| MZMaschmeyer - Zephyrhills | Zephyrhills | FL | — | ◇ UNVERIFIED |
| MSMccabe Sand & Gravel | Taunton | MA | — | ◇ UNVERIFIED |
| MCMccoig Concrete-springwells | Detroit | MI | — | ◇ UNVERIFIED |
| MCMcminnville Concrete | Mcminnville | OR | — | ◇ UNVERIFIED |
| MCMechanicsville Concrete Llc-airport Plant (oakleys Lane) | Henrico | VA | — | ◇ UNVERIFIED |
| MCMechanicsville Concrete LLC - Chesterfield Plant | Midlothian | VA | — | ◇ UNVERIFIED |
| MPMelissa Plant | Melissa | TX | — | ◇ UNVERIFIED |
| MRMeraux Refinery | Meraux | LA | — | ◇ UNVERIFIED |
| MCMerit Concrete | Laurel | MD | — | ◇ UNVERIFIED |
| MMetalico-evans | Atlanta | GA | — | ◇ UNVERIFIED |
| MCMetro Concrete | Ocean Springs | MS | — | ◇ UNVERIFIED |
| MMMetro Materials INC Cordova | Cordova | TN | — | ◇ UNVERIFIED |
| MMMetro Mix LLC | Denver | CO | — | ◇ UNVERIFIED |
| MRMetromont:clemson Ready-mix Plant | Seneca | SC | — | ◇ UNVERIFIED |
| MMMetromont Materials Corporation - Hamlet Plant | Hamlet | NC | — | ◇ UNVERIFIED |
| MPMetromont Paris Mountain | Greenville | SC | — | ◇ 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 |
| MCMid Continent Concrete CO / 431 W 23rd St Tulsa Facility | Tulsa | OK | — | ◇ UNVERIFIED |
| MAMidland Asphalt Materials - Lyons Terminal | Lyons | NY | — | ◇ UNVERIFIED |
| MPMidlothian Plant | Midlothian | TX | — | ◇ UNVERIFIED |
| MBMidtown Batch Plant | Oklahoma City | OK | — | ◇ UNVERIFIED |
| MPMidwest Precast Concrete Enterprises INC | Mount Pleasant | IA | — | ◇ UNVERIFIED |
| 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 | Saltillo | MS | — | ◇ UNVERIFIED |
| Mmc Materials INC | Coldwater | MS | — | ◇ UNVERIFIED |
| Mmc Materials INC | Hattiesburg | 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 |
| MBMont Belvieu South Rail Terminal | Baytown | TX | — | ◇ UNVERIFIED |
