| MLMed-Co L.L.C. | Federal Way | WA | — | ◇ UNVERIFIED |
| MCMellott Co/warfordsburg Mfg Fac | Warfordsburg | PA | — | ◇ UNVERIFIED |
| MHMercy Housing La Mancha | Sacramento | CA | — | ◇ UNVERIFIED |
| MGMesa General Engineering INC | Castaic | CA | — | ◇ UNVERIFIED |
| MGMesa General Engineering INC | Corona | CA | — | ◇ UNVERIFIED |
| MCMetzger Construction Company INC | Boonville | IN | — | ◇ UNVERIFIED |
| MCMeuth Construction Supply INC | Morganfield | KY | — | ◇ UNVERIFIED |
| MPMeyer Products LLC (1318001982) | Cleveland | OH | — | ◇ UNVERIFIED |
| MLMhwirth, LLC | Mobile | AL | — | ◇ UNVERIFIED |
| MRMichael Runk, Pamela Runk, Duane Runk Excavating | Broad Top | PA | — | ◇ UNVERIFIED |
 M.i.c. Industries, INC. | Winchester | VA | — | ◇ UNVERIFIED |
| MAMid America Trenchers LLC | Dexter | IA | — | ◇ UNVERIFIED |
| MEMiller Environmental, INC. | Orange | CA | — | ◇ UNVERIFIED |
| MTMiller Trucking & Excavating | Carbon Cliff | IL | — | ◇ UNVERIFIED |
| MBMonoflo Breen Road Facility | Houston | TX | — | ◇ UNVERIFIED |
| MCMorgan City Warehouse | Morgan City | LA | — | ◇ UNVERIFIED |
| MWMountain West Crushing Plant | Natrona | WY | — | ◇ UNVERIFIED |
| MMpg | Norco | LA | — | ◇ UNVERIFIED |
| MCMrl Constructors of N.y., INC. | Niagara Falls | NY | — | ◇ UNVERIFIED |
| MDMsi Dixie Iron Works | Midland | TX | — | ◇ UNVERIFIED |
| MJMud Jack King | Kansas City | MO | — | ◇ UNVERIFIED |
| MPMulti Products Company, INC. | Millersburg | OH | — | ◇ UNVERIFIED |
| MLMurray Lane Trust | Athol | MA | — | ◇ UNVERIFIED |
| MBMyers Brothers Well Drilling INC | Hanford | CA | — | ◇ UNVERIFIED |
| NONational Oilwell Galena Park | Galena Park | TX | — | ◇ UNVERIFIED |
| NONational Oilwell Varco | Bakersfield | CA | — | ◇ UNVERIFIED |
| NONational Oilwell Varco | Houston | TX | — | ◇ UNVERIFIED |
| NONational Oilwell Varco | Gonzales | TX | — | ◇ UNVERIFIED |
| NONational Oilwell Varco | Houston | TX | — | ◇ UNVERIFIED |
| NONational Oilwell Varco | Houston | TX | — | ◇ UNVERIFIED |
| NONational Oilwell Varco Distribution Services | Casper | WY | — | ◇ UNVERIFIED |
| NONational Oilwell Varco, L.p. | Dayton | TX | — | ◇ UNVERIFIED |
| NONational Oilwell Varco LP - Mobile Rigs / National Oilwell | Lindsay | OK | — | ◇ UNVERIFIED |
| NONational Oilwell Varco LP / Nov Oklahoma City Rig Offshore | Oklahoma City | OK | — | ◇ UNVERIFIED |
| NONational Oilwell Varco LP - Rs Venture Houma | Houma | LA | — | ◇ UNVERIFIED |
| NMNc Machinery Company | Anchorage | AK | — | ◇ UNVERIFIED |
| NENeroco Engineering | Oconto | WI | — | ◇ UNVERIFIED |
| NWNevada Water Trucks | Las Vegas | NV | — | ◇ UNVERIFIED |
| NANew Age Graphics | Irvine | CA | — | ◇ UNVERIFIED |
| NLNext Level Construction Services | Temecula | CA | — | ◇ UNVERIFIED |
| NRNg Resources Corportation | Midland | TX | — | ◇ UNVERIFIED |
| NFNhr Facility | Houston | TX | — | ◇ UNVERIFIED |
| NCNichols Concrete Holdings, LLC - Pelham Plant | Pelham | AL | — | ◇ UNVERIFIED |
| NBNoble Blackhawk | Houston | TX | — | ◇ UNVERIFIED |
| NCNoble Construction Equipment INC | Lubbock | TX | — | ◇ UNVERIFIED |
| NPNorris Production Solutions | Shafter | CA | — | ◇ UNVERIFIED |
| NBNorth Bend Equipment LLC | Florence | KY | — | ◇ UNVERIFIED |
| NENortrax Equipment Company INC. | Lutz | FL | — | ◇ UNVERIFIED |
| NNov | Orange | CA | — | ◇ UNVERIFIED |
| NFNov Fgs L.p. Mineral Wells | Mineral Wells | TX | — | ◇ UNVERIFIED |
