| MHMastic Home Exteriors, INC. | Sidney | OH | — | ◇ UNVERIFIED |
| MHMastic Home Exteriors, INC. | Stuarts Draft | VA | — | ◇ 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 |
 Material Handling Systems, INC. | Middletown | CT | — | ◇ UNVERIFIED |
| MHMaterial Handling Technology | Fair Haven | MI | — | ◇ UNVERIFIED |
| MSMaterial Supply INC. | Las Vegas | NV | — | ◇ UNVERIFIED |
| MDMathias Die Company, Inc. | Golden Valley | MN | — | ◇ UNVERIFIED |
| MDMathias Die Company INC | Minneapolis | MN | — | ◇ UNVERIFIED |
| MHMat Holdings INC. Dba Midwest Air Technologies | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
| MHMatic Hydraulics, INC. | College Point | NY | — | ◇ UNVERIFIED |
| MMatrix | Doniphan | MO | — | ◇ UNVERIFIED |
| MIMatrix, Iv, INC | Woodstock | IL | — | ◇ UNVERIFIED |
 Matrix Machine CORP | Chino | CA | — | ◇ UNVERIFIED |
| Matrix Machine & Manufacturing LLC | Broomfield | CO | — | ◇ UNVERIFIED |
| MMMatrix Machining Inc. | Neenah | WI | — | ◇ UNVERIFIED |
| MMMatrix Manufacturing | Wyoming | MI | — | ◇ UNVERIFIED |
| MMMatrix Manufacturing, INC. | Springfield | MO | — | ◇ UNVERIFIED |
| MTMatrix Tooling & Design INC | Ramsey | MN | — | ◇ UNVERIFIED |
| MBMatthews Blow Pipe CO INC | Memphis | TN | — | ◇ UNVERIFIED |
 Matthews International Corporation | San Jacinto | CA | — | ◇ UNVERIFIED |
| MMMatthews Manufacturing INC. | Saint Louis | MO | — | ◇ UNVERIFIED |
| MMMatthews Manufacturing, INC | Los Angeles | CA | — | ◇ UNVERIFIED |
| MMMatt Machine & Manufacturing, INC. | Pittsburgh | PA | — | ◇ UNVERIFIED |
| MPMatt Pane Tools LLC | Holland | PA | — | ◇ UNVERIFIED |
| MMMatt's Metal Stitch LLC | Hamburg | NY | — | ◇ UNVERIFIED |
| MEMatzke Enterprises, INC. | Salem | WI | — | ◇ UNVERIFIED |
| MMaudlin | Kemah | TX | — | ◇ UNVERIFIED |
| MMMaugus Manufacturing Incorporated | Lancaster | PA | — | ◇ UNVERIFIED |
| MCMaui Cup a Division of Letica Corporation | Pittston | PA | — | ◇ UNVERIFIED |
| MAMaumee Assembly & Stamping | Maumee | OH | — | ◇ UNVERIFIED |
| MMMaupins Machine Shop | Dodge City | KS | — | ◇ UNVERIFIED |
| MCMauser CORP | Nitro | WV | — | ◇ UNVERIFIED |
| MCMauser CORP | Addison | IL | — | ◇ UNVERIFIED |
| MUMauser USA LLC | Clarkston | MI | — | ◇ UNVERIFIED |
 Maverick Manufacturing LLC | Lakeville | MN | — | ◇ UNVERIFIED |
| MRMaverick Realty LLC | Norman | OK | — | ◇ UNVERIFIED |
| MSMaverick Sheet Metal LLC | Conroe | TX | — | ◇ UNVERIFIED |
| MFMaxair Four Seasons Fort Worth Ops | Fort Worth | TX | — | ◇ UNVERIFIED |
| MCMaxcam Corporation | White Bear Lake | MN | — | ◇ UNVERIFIED |
| MMMaxco Manufacturing LLC | Ona | WV | — | ◇ UNVERIFIED |
| MMMaxco Manufacturing LLC | Ona | WV | — | ◇ UNVERIFIED |
| MEMax Engineering, LLC | Shawnee | KS | — | ◇ UNVERIFIED |
| MIMaxey Industries, Inc. | Shelbyville | KY | — | ◇ UNVERIFIED |
| MGMax G Bradley Jr LLC | Tipton | IN | — | ◇ UNVERIFIED |
| MCMaxim Crane Works, LP | Beaumont | TX | — | ◇ UNVERIFIED |
| MMMaxim Motor Sports | Lake Havasu City | AZ | — | ◇ UNVERIFIED |
| MMMaximum Machine | Riverton | UT | — | ◇ UNVERIFIED |
| MLMaximus-3 LLC | Auburn Hills | MI | — | ◇ UNVERIFIED |
| MPMaximus Precison | North Springfield | VT | — | ◇ UNVERIFIED |
| MPMaximus Precison | Springfield | VT | — | ◇ UNVERIFIED |
| MFMaxion Fumagalli Automotive USA INC | Troy | MI | — | ◇ UNVERIFIED |
 Max Machining, LLC | Perkasie | PA | — | ◇ UNVERIFIED |
| MMMax Manufacturing INC | Bend | OR | — | ◇ UNVERIFIED |
| MNMax Nitz Polishing | Baroda | MI | — | ◇ UNVERIFIED |
| MPMaxon Plastics. Inc. | Batavia | IL | — | ◇ UNVERIFIED |
| MGMaxton Group INC | Ormond Beach | FL | — | ◇ UNVERIFIED |
| MMMaxwell Manufacturing, INC. | Maxwell | TX | — | ◇ UNVERIFIED |
| MAMayaguez Auto Part | Mayaguez | PR | — | ◇ UNVERIFIED |
| MJMaya Jig Grinding & Gage Co. | Plymouth | MI | — | ◇ UNVERIFIED |
| MDMay Day Auto Classic Parts, Inc | Levittown | PA | — | ◇ UNVERIFIED |
| MBMayhew Bestway LLC | Ormond Beach | FL | — | ◇ UNVERIFIED |
| MLMaynard Lake Machining LLC | Dassel | MN | — | ◇ UNVERIFIED |
| MEMayoni Enterprises | Pacoima | CA | — | ◇ UNVERIFIED |
| MMMayor's Machine Works, INC. | Sugar Land | TX | — | ◇ UNVERIFIED |
| MLMaysteel, LLC | Allenton | WI | — | ◇ UNVERIFIED |
| MPMaysteel Porters | Garland | TX | — | ◇ UNVERIFIED |
| MSMaysteel Star Precision | Longmont | CO | — | ◇ UNVERIFIED |
| MTMay Trucking | Phelan | CA | — | ◇ UNVERIFIED |
 Mayville Engineering Company, INC. | Beaver Dam | WI | — | ◇ UNVERIFIED |
| Mayville Engineering Company INC Dba Mec | Vanderbilt | MI | — | ◇ UNVERIFIED |
| MCMazak CORP | Fremont | CA | — | ◇ UNVERIFIED |
 M-b Companies INC | Salem | OR | — | ◇ UNVERIFIED |
| MGMbi Global, LLC | Lafayette | LA | — | ◇ UNVERIFIED |
| MIM-b Industries, INC. | Rosman | NC | — | ◇ UNVERIFIED |
| MKMbm Kosher | Pacoima | CA | — | ◇ UNVERIFIED |
| MCMbta Charlestown Non-revenue Automotive Garage | Charlestown | MA | — | ◇ UNVERIFIED |
| MWMb Weld LLC | Waynesboro | VA | — | ◇ UNVERIFIED |
| MIMbw INC. | Slinger | WI | — | ◇ UNVERIFIED |
| MIMcad Inc., Dba Carolina Custom Surfaces | Greensboro | NC | — | ◇ UNVERIFIED |
| MMMcadoo Machine Company | Kelayres | PA | — | ◇ UNVERIFIED |
| MMMcallen Motor Mart Machine Shop | Mcallen | TX | — | ◇ UNVERIFIED |
| MEMcardle Enterprises | Charlotte | NC | — | ◇ UNVERIFIED |
| MPMcarthur Park, INC. Dba the Bleacherman | Corinth | NY | — | ◇ UNVERIFIED |
| MEMcB Enviro Corporation | Indianapolis | IN | — | ◇ UNVERIFIED |
| MRMcbride's Research & Machine, INC. | Sparks | NV | — | ◇ UNVERIFIED |
| MMMccabe Metal Products INC | Salem | OR | — | ◇ UNVERIFIED |
| MIMccampbell INC | Destrehan | LA | — | ◇ UNVERIFIED |
| MFMcconnie Fence CO. | Tampa | FL | — | ◇ UNVERIFIED |
| MSMccorvey Sheet Metal Works LP | Murphy | NC | — | ◇ UNVERIFIED |
| MSMccorvey Sheet Metal Works, L.p. | Orlando | FL | — | ◇ UNVERIFIED |
| MSMccutchen Skywheels CORP | Broomfield | CO | — | ◇ UNVERIFIED |
| MPMcdaniel Products, INC. | Mansfield | OH | — | ◇ UNVERIFIED |
| MDMC Developers, LLC | Brodhead | WI | — | ◇ UNVERIFIED |
| MHMC&D Holdings, LLC | Addison | IL | — | ◇ UNVERIFIED |
| MTMcdonald Tank & Equipment | Great Bend | KS | — | ◇ UNVERIFIED |
| MDMcdonnel Douglas Missle Systems | Titusville | FL | — | ◇ UNVERIFIED |
