| MAMansell and Associates, LLC | Tuscumbia | AL | — | ◇ UNVERIFIED |
| MWMansfield Welding Services LLC | Oakwood | OH | — | ◇ UNVERIFIED |
| MLManufab, LLC | Rexburg | ID | — | ◇ UNVERIFIED |
| MCManufacturing Consulting Services | Sulphur Springs | TX | — | ◇ UNVERIFIED |
| MSManufacturing Services & Installation LLC | Lawrenceburg | TN | — | ◇ UNVERIFIED |
| MEMape Engineering INC. | Colton | CA | — | ◇ UNVERIFIED |
| MPMapleton Properties LLC | Spanish Fork | UT | — | ◇ UNVERIFIED |
| MLMap LLC | Franklin | IN | — | ◇ UNVERIFIED |
| MEMarathon Equipment | Phoenix | AZ | — | ◇ UNVERIFIED |
| MEMarathon Equipment Company | Yerington | NV | — | ◇ UNVERIFIED |
| MPMarble Prods INC | Webster | TX | — | ◇ UNVERIFIED |
| MMMarcres Manufacturing, INC. Dba Macres Metal Works | Mount Prospect | IL | — | ◇ UNVERIFIED |
| MIMarelco, INC. and Its Successors and Assigns | Beltsville | MD | — | ◇ UNVERIFIED |
| MMMarelich Mechanical Co, INC | Hayward | CA | — | ◇ UNVERIFIED |
| MIMariak Industrial | Compton | CA | — | ◇ UNVERIFIED |
| MMMarietta Magnetics LLC | Marietta | OH | — | ◇ UNVERIFIED |
 Marine Fenders International INC | Wilmington | CA | — | ◇ UNVERIFIED |
| MMarino/ware | Pasadena | TX | — | ◇ UNVERIFIED |
| MCMarketing Card Technology, LLC | Darien | IL | — | ◇ UNVERIFIED |
| MHMarketing Holders Real Estate LLC | Mims | FL | — | ◇ UNVERIFIED |
| MSMarking Specialists/Polymer Technologies | Buffalo Grove | IL | — | ◇ UNVERIFIED |
 Markins Enterprise, LLC | Apache Junction | AZ | — | ◇ UNVERIFIED |
| MKMark Knoedler | Ijamsville | MD | — | ◇ UNVERIFIED |
| MLMark Lomakin | Port St. Lucie | FL | — | ◇ UNVERIFIED |
| MPMark Peiser Manufacturing, Inc. | Tavares | FL | — | ◇ UNVERIFIED |
| MDMarks Design & Metalworks | Vancouver | WA | — | ◇ UNVERIFIED |
| MMMarksman Metal Company INC | Saint Michael | MN | — | ◇ UNVERIFIED |
| MWMarks Welding & Fabricating | Thorsby | AL | — | ◇ UNVERIFIED |
| MFMarlatt Fabricators INC. | Sandia | TX | — | ◇ UNVERIFIED |
| MPMarlo Plastic Products INC. | Manalapan | NJ | — | ◇ UNVERIFIED |
| MPMarlo Plastic Products, INC. | Neptune | NJ | — | ◇ UNVERIFIED |
| MIMaro International Corporation | Tulsa | OK | — | ◇ UNVERIFIED |
| MLMarrick, LLC | Chesapeake | VA | — | ◇ UNVERIFIED |
| MGMarshall Gruber Systems, INC. | Mansfield | TX | — | ◇ UNVERIFIED |
| MIMarstan INC | Coon Rapids | MN | — | ◇ UNVERIFIED |
| MPMar-tech Precision, LLC | Hackettstown | NJ | — | ◇ UNVERIFIED |
| MDMartell Design and Fabrication LLC | Saco | ME | — | ◇ UNVERIFIED |
| MMMartin Metal Fabricators INC | Salem | OR | — | ◇ UNVERIFIED |
| MMMartin Metalwork LLC | Berea | KY | — | ◇ UNVERIFIED |
| MSMartin Sheet Metal, INC. | Amarillo | TX | — | ◇ UNVERIFIED |
| MWMartin Welding and Fabrication LLC | Contoocook | NH | — | ◇ UNVERIFIED |
| MHMarvel Holdings LLC | Orchard | TX | — | ◇ UNVERIFIED |
| MMMaryland Metals Processing, INC. | Sparrows Point | MD | — | ◇ UNVERIFIED |
| MLMascoat LLC | West Monroe | LA | — | ◇ UNVERIFIED |
| MCMason Corporation | Jemison | AL | — | ◇ UNVERIFIED |
| MMMason Machine and Fab, LLC | Lafayette | LA | — | ◇ UNVERIFIED |
| MRMason Ridge LLC | Green Bay | WI | — | ◇ UNVERIFIED |
| MIMasport Incorporated | Lincoln | NE | — | ◇ UNVERIFIED |
| MLMasses LLC | Las Vegas | NV | — | ◇ UNVERIFIED |
| MMMassey Metals INC. | Tampa | FL | — | ◇ UNVERIFIED |
| MBMaster Bilt Products Site 2 | New Albany | MS | — | ◇ UNVERIFIED |
| MLMastercast, LTD. | Pawtucket | RI | — | ◇ UNVERIFIED |
| MFMaster Fabrication LLC | Knoxville | IA | — | ◇ UNVERIFIED |
| MLMasterglas LLC | Lakeville | MN | — | ◇ UNVERIFIED |
| MMMaster Magnetics, INC. | Castle Rock | CO | — | ◇ UNVERIFIED |
| MMMaster Molders INC | Orangeburg | SC | — | ◇ UNVERIFIED |
| MIMastermolding, INC. | Phoenix | AZ | — | ◇ UNVERIFIED |
| MSMaster Sheet Metal | New York | NY | — | ◇ UNVERIFIED |
| MSMaster Sheet Metal, INC. | Schofield Barracks | HI | — | ◇ UNVERIFIED |
| MHMastic Home Exteriors, INC. | Stuarts Draft | VA | — | ◇ UNVERIFIED |
| MHMastic Home Exteriors, INC. | Sidney | OH | — | ◇ UNVERIFIED |
| MCMasto Contractor Services INC | Albuquerque | NM | — | ◇ UNVERIFIED |
| MPMatchless Plastics INC | Plymouth | MN | — | ◇ UNVERIFIED |
| MCMaterial Control | Croswell | MI | — | ◇ UNVERIFIED |
| MCMaterial Control INC. | Atlanta | GA | — | ◇ UNVERIFIED |
| MCMaterial Control, INC. | Arlington | TX | — | ◇ UNVERIFIED |
| MHMaterial Handling Technology | Fair Haven | MI | — | ◇ UNVERIFIED |
| MSMaterial Supply INC. | Las Vegas | NV | — | ◇ UNVERIFIED |
| MHMat Holdings INC. Dba Midwest Air Technologies | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
| MIMatrix, Iv, INC | Woodstock | IL | — | ◇ UNVERIFIED |
| MMMatrix Manufacturing | Wyoming | MI | — | ◇ UNVERIFIED |
| MMMatrix Manufacturing, INC. | Springfield | MO | — | ◇ UNVERIFIED |
| MBMatthews Blow Pipe CO INC | Memphis | TN | — | ◇ UNVERIFIED |
 Matthews International Corporation | San Jacinto | CA | — | ◇ UNVERIFIED |
| MMMatthews Manufacturing INC. | Saint Louis | MO | — | ◇ UNVERIFIED |
| MEMatzke Enterprises, INC. | Salem | WI | — | ◇ UNVERIFIED |
| MMMaugus Manufacturing Incorporated | Lancaster | PA | — | ◇ UNVERIFIED |
| MCMaui Cup a Division of Letica Corporation | Pittston | PA | — | ◇ UNVERIFIED |
| MAMaumee Assembly & Stamping | Maumee | OH | — | ◇ UNVERIFIED |
| MCMauser CORP | Nitro | WV | — | ◇ UNVERIFIED |
| MCMauser CORP | Addison | IL | — | ◇ UNVERIFIED |
| MUMauser USA LLC | Clarkston | MI | — | ◇ UNVERIFIED |
 Maverick Manufacturing LLC | Lakeville | MN | — | ◇ UNVERIFIED |
| MSMaverick Sheet Metal LLC | Conroe | TX | — | ◇ UNVERIFIED |
| MMMaxco Manufacturing LLC | Ona | WV | — | ◇ UNVERIFIED |
| MMMaxco Manufacturing LLC | Ona | WV | — | ◇ UNVERIFIED |
| MLMaximus-3 LLC | Auburn Hills | MI | — | ◇ UNVERIFIED |
 Max Machining, LLC | Perkasie | PA | — | ◇ UNVERIFIED |
| MMMax Manufacturing INC | Bend | OR | — | ◇ UNVERIFIED |
| MPMaxon Plastics. Inc. | Batavia | IL | — | ◇ UNVERIFIED |
| MMMaxwell Manufacturing, INC. | Maxwell | TX | — | ◇ UNVERIFIED |
| MEMayoni Enterprises | Pacoima | CA | — | ◇ UNVERIFIED |
| MLMaysteel, LLC | Allenton | WI | — | ◇ UNVERIFIED |
| MPMaysteel Porters | Garland | TX | — | ◇ UNVERIFIED |
| MSMaysteel Star Precision | Longmont | CO | — | ◇ UNVERIFIED |
| MCMazak CORP | Fremont | CA | — | ◇ UNVERIFIED |
| MKMbm Kosher | Pacoima | CA | — | ◇ UNVERIFIED |
| MWMb Weld LLC | Waynesboro | VA | — | ◇ UNVERIFIED |
| MIMcad Inc., Dba Carolina Custom Surfaces | Greensboro | NC | — | ◇ UNVERIFIED |
| MMMccabe Metal Products INC | Salem | OR | — | ◇ UNVERIFIED |
