| LCLorac CO | Providence | RI | Fabricated Metal Product Manufacturing332119 | — | ◇ UNVERIFIED |
| LMLouise Mcwhorter | Rankin | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| LTLucent Technologies Incorporated | Indianapolis | IN | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| LOLuxottica Optical Manufacturing | Dallas | TX | Miscellaneous Manufacturing339115 | — | ◇ UNVERIFIED |
| LPLydia Pinkham Trust | Lynn | MA | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| LILynch Industries | Burlington Township | NJ | Miscellaneous Manufacturing339950 | — | ◇ UNVERIFIED |
 Macho Products, INC. | Sebastian | FL | Miscellaneous Manufacturing339920 | — | ◇ UNVERIFIED |
| MAMacks Auto Recycling | Urbana | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| MSMack Studios Displays INC | Auburn | NY | Miscellaneous Manufacturing339950 | — | ◇ UNVERIFIED |
| MMMac Manufacturing | Lebanon Junction | KY | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| MNMagic Novelty CO | New York | NY | Miscellaneous Manufacturing339910 | — | ◇ UNVERIFIED |
| MUMagnequench Ug | Valparaiso | IN | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| MSMagnetic Separation Systems, INC. | Nashville | TN | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| MVMahomet, Village of | Mahomet | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| MIMallace Industries CORP. Dba Frismar | Clinton | CT | Miscellaneous Manufacturing339944 | — | ◇ UNVERIFIED |
| MVMariah Vision 3 Entertainment Incorporated | Virginia Beach | VA | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| MOMarimba One, INC. | Arcata | CA | Miscellaneous Manufacturing339992 | — | ◇ UNVERIFIED |
| MFMarine Floats CORP | Tacoma | WA | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| MMMarine Material Handling CORP | Lemont | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| MMMarking Methods INC | Alhambra | CA | Miscellaneous Manufacturing339943 | — | ◇ UNVERIFIED |
| MTMark Tex CORP | Englewood | NJ | Miscellaneous Manufacturing339940 | — | ◇ UNVERIFIED |
| MGMarsha Grubb | Shelbyville | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| MSMarsh Shipping Supply CO LLC | Collinsville | IL | Miscellaneous Manufacturing339943 | — | ◇ UNVERIFIED |
| MMartinizing | Palatine | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| MUMarukome USA | Irvine | CA | Miscellaneous Manufacturing339112 | — | ◇ UNVERIFIED |
| MKMary Kay Abts | Pekin | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| MPMasbro Polishing Company | Pawtucket | RI | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| MCMason Candlelight | Middlesex | NJ | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| MMMason Mfg INC | Decatur | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| MEMassac Environmental Tech INC | Centralia | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| MCMassasoit Community College | Canton | MA | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| MHMassdot Highway Division | Boston | MA | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| MPMassee Products LTD | Niles | MI | Miscellaneous Manufacturing339112 | — | ◇ UNVERIFIED |
| MOMasters of Design INC | Attleboro | MA | Miscellaneous Manufacturing339910 | — | ◇ UNVERIFIED |
| MIMathews INC | Sparta | WI | Miscellaneous Manufacturing339920 | — | ◇ UNVERIFIED |
| MEMathis Excavating | Duquoin | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| MLMatt Leigh | Pontiac | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| MPMchenry Public Works Garage | Mchenry | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| MBMckee Button Company | Muscatine | IA | Miscellaneous Manufacturing339993 | — | ◇ UNVERIFIED |
| MIMeadowvale INC | Sandwich | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| MTMedcare Technologies INC - Formerly | Rochester | NY | Miscellaneous Manufacturing339112 | — | ◇ UNVERIFIED |
| MMedennium | Irvine | CA | Miscellaneous Manufacturing339115 | — | ◇ UNVERIFIED |
| MTMedin Technologies INC | Passaic | NJ | Miscellaneous Manufacturing339113 | — | ◇ UNVERIFIED |
| MFMedora Fs, INC. | Medora | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| MIMedrad INC | Indianola | PA | Miscellaneous Manufacturing339112 | — | ◇ UNVERIFIED |
| MLMedranos Landscape INC | Rockford | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| MMedtronic | Miami Lakes | FL | Miscellaneous Manufacturing339112 | — | ◇ UNVERIFIED |
| MAMedtronic Ats | Plymouth | MN | Miscellaneous Manufacturing339112 | — | ◇ UNVERIFIED |
 Megadyne Medical Products, INC. | Draper | UT | Miscellaneous Manufacturing339112 | — | ◇ UNVERIFIED |
| MTMeioco Terminal | Ashkum | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
