| MFMolded Fiber Glass Companies West | Carson | CA | — | ◇ UNVERIFIED |
| MFMolded Fiber Glass Construction Products Company | Independence | KS | — | ◇ UNVERIFIED |
| MFMolded Fiber Glass - Holly Rd | Adelanto | CA | — | ◇ UNVERIFIED |
| MFMolded Fiber Glass - Muskrat | Adelanto | CA | — | ◇ UNVERIFIED |
| MFMolded Fiber Glass Northwest Site | Stevenson | WA | — | ◇ UNVERIFIED |
| MMMolded Materials INC | Plymouth | MI | — | ◇ UNVERIFIED |
| MAMolding Acquisition Corporation | Merced | CA | — | ◇ UNVERIFIED |
| MIMoldsmith, INC. | Warren | PA | — | ◇ UNVERIFIED |
| MBMolecular Bioproducts INC Dba Thermo Fishier Scientific-petaluma | Petaluma | CA | — | ◇ UNVERIFIED |
| MIMolex INC | Lincoln | NE | — | ◇ UNVERIFIED |
| MIMoll Industries | Dallas | TX | — | ◇ UNVERIFIED |
| MAMolten (north America) CORP (0332010080) | Findlay | OH | — | ◇ UNVERIFIED |
| MPMomentive Performance Materials USA LLC | Chino | CA | — | ◇ UNVERIFIED |
| MRMonaco Rv | Eugene | OR | — | ◇ UNVERIFIED |
| MMMonarch Manufacturing, INC. | Belcamp | MD | — | ◇ UNVERIFIED |
| MPMonarch Plastic INC (0285010268) | Orrville | OH | — | ◇ UNVERIFIED |
| MAMondi Akrosil, LLC | Jackson | MO | — | ◇ UNVERIFIED |
| MEMoney Enterprises LLC | New Albany | IN | — | ◇ UNVERIFIED |
| MAMonotrac Articulation LLC | Midvale | UT | — | ◇ UNVERIFIED |
| MCMonster City Studios | Fresno | CA | — | ◇ UNVERIFIED |
| MCMontgomery Chem Ltd/conshohocken | Conshohocken | PA | — | ◇ UNVERIFIED |
| MLMoonfeather LLC | Eugene | OR | — | ◇ UNVERIFIED |
| MRMoon Roof Corporation of America | Roseville | MI | — | ◇ UNVERIFIED |
| MRMoon Roof Corporation of America | Roseville | MI | — | ◇ UNVERIFIED |
 Moore Fabrication, INC. | Houston | TX | — | ◇ UNVERIFIED |
| MFMoore's Fiberglass, INC. | Walstonburg | NC | — | ◇ UNVERIFIED |
| MPM.o. Precision Molders, INC. | Clearwater | FL | — | ◇ UNVERIFIED |
| MCMoretex Chemical Products, INC. | Spartanburg | SC | — | ◇ UNVERIFIED |
| MBMorgan Building & Spas INC | Hallettsville | TX | — | ◇ UNVERIFIED |
| MHMorgan Hill Plastics | Morgan Hill | CA | — | ◇ UNVERIFIED |
| MTMorris Tick CO INC | Bloomington | IL | — | ◇ UNVERIFIED |
| MCMorton Custom Plastics | Saint Matthews | SC | — | ◇ UNVERIFIED |
| MCMorton Custom Plastics | Saint Matthews | SC | — | ◇ UNVERIFIED |
| MIMorton International | Woburn | MA | — | ◇ UNVERIFIED |
| MLMoses Lake Industries | Mesa | AZ | — | ◇ UNVERIFIED |
| MSMoss Supply Company | Cartersville | GA | — | ◇ UNVERIFIED |
| MMMountain Molding LTD | Longmont | CO | — | ◇ UNVERIFIED |
| MMMountain Molding LTD. | Hwy66 0.3 Mi of | CO | — | ◇ UNVERIFIED |
| MPMountainview Products LLC | Gresham | OR | — | ◇ UNVERIFIED |
| MVMount Vernon Chemicals, LLC / Apollo Chemical - Burlington | Burlington | NC | — | ◇ UNVERIFIED |
| MIM.P.D., Inc. | Lake Forest | IL | — | ◇ UNVERIFIED |
| MLMp&e LLC Dba Advancedcath | Eden Prairie | MN | — | ◇ UNVERIFIED |
| MPMPR Plastics, Inc. | Elgin | IL | — | ◇ UNVERIFIED |
| MPMps Plastics, INC. | Marlborough | CT | — | ◇ UNVERIFIED |
| MRM R Alsobrook, INC | Batavia | IL | — | ◇ UNVERIFIED |
| MPMrc Plastic Solutions | Roseville | MI | — | ◇ UNVERIFIED |
| MLMr Longarm INC | Greenwood | MO | — | ◇ UNVERIFIED |
| MMMr. Marble CO. | Lawrenceville | GA | — | ◇ UNVERIFIED |
| MIMrm Industries INC | Owosso | MI | — | ◇ UNVERIFIED |
| MMMr Mister Industries | Anaheim | CA | — | ◇ UNVERIFIED |
| MMMsi Molding Solutions, INC. | Rome | NY | — | ◇ UNVERIFIED |
| MIM.S.R.S., Inc. | Redlands | CA | — | ◇ UNVERIFIED |
| MIM.s.r.s., INC. | Riverside | CA | — | ◇ UNVERIFIED |
| MSM & S Tube Technologies | Grand Haven | MI | — | ◇ UNVERIFIED |
| MEMts Enterprises Llc | Springfield | OH | — | ◇ UNVERIFIED |
| MIMubea INC | Auburn Hills | MI | — | ◇ UNVERIFIED |
| MEMucell Extrusion LLC | Woburn | MA | — | ◇ UNVERIFIED |
| MCMuehlstein Compounded Products | Houston | TX | — | ◇ UNVERIFIED |
| MPMueller Plastics CORP INC | Ontario | CA | — | ◇ UNVERIFIED |
| MSMueller Streamline CO | Sanger | CA | — | ◇ UNVERIFIED |
| MPMultifab Plastics, INC | Boston | MA | — | ◇ UNVERIFIED |
| MUMultina USA | Plattsburgh | NY | — | ◇ UNVERIFIED |
| MPMulti Plastics INC | Saegertown | PA | — | ◇ UNVERIFIED |
| MMulti-products | Erie | PA | — | ◇ UNVERIFIED |
| MAMundell & Associates, INC. | Indianapolis | IN | — | ◇ UNVERIFIED |
| MPMunot Plastics, INC. | Erie | PA | — | ◇ UNVERIFIED |
| MSMuseum Services Corporation | South Saint Paul | MN | — | ◇ UNVERIFIED |
| MMMvg Molded Products | Santa Rosa | CA | — | ◇ UNVERIFIED |
| MFMvp Food Packaging | Mount Vernon | KY | — | ◇ UNVERIFIED |
| MPMVP Plastics, Inc | Middlefield | OH | — | ◇ UNVERIFIED |
| MCMwm Corporation | Phoenix | AZ | — | ◇ UNVERIFIED |
| MFMyers Fiberglass | Visalia | CA | — | ◇ UNVERIFIED |
| MIMyers Industries, INC. | Middlefield | OH | — | ◇ UNVERIFIED |
| MLMyers Lawn and Garden Group | Middlefield | OH | — | ◇ UNVERIFIED |
| MSMyers & Sons Hi-way Safety INC | Napa | CA | — | ◇ UNVERIFIED |
| MUMyplas USA | Rogers | MN | — | ◇ UNVERIFIED |
| NINailor Industries of Texas, INC. | North Las Vegas | NV | — | ◇ UNVERIFIED |
| NMNakanishi Manufacturing Corporation | Winterville | GA | — | ◇ UNVERIFIED |
| NWNalco Water Marion Facility | Marion | VA | — | ◇ UNVERIFIED |
| NNNalge Nunc International | Naperville | IL | — | ◇ UNVERIFIED |
| NANampac a Division of Bway Corporation | Bryan | TX | — | ◇ UNVERIFIED |
| NTNanophase Technologies CORP | Burr Ridge | IL | — | ◇ UNVERIFIED |
| NINanosys Incs | Milpitas | CA | — | ◇ UNVERIFIED |
| NANap Asset Holding LTD Dba Nap Gladu | Ontario | CA | — | ◇ UNVERIFIED |
| NLNaprotec LLC | Chattanooga | TN | — | ◇ UNVERIFIED |
| NCNational Chloride CO of America | Amboy | CA | — | ◇ UNVERIFIED |
| NCNational Composites-american Recreational Products | Fenton | MI | — | ◇ UNVERIFIED |
| NENational Environmental Fiberglass LLC | Adelanto | CA | — | ◇ UNVERIFIED |
| NMNational Microdynamics | Chattanooga | TN | — | ◇ UNVERIFIED |
| NMNational Molding LLC | Ambridge | PA | — | ◇ UNVERIFIED |
| NPNational Picture & Frame Company | Greenwood | MS | — | ◇ UNVERIFIED |
| NPNational Plastics Color | Valley Center | KS | — | ◇ UNVERIFIED |
| NPNational Plastics Color INC | Valley Center | KS | — | ◇ UNVERIFIED |
| NPNational Polymers LLC | Lakeville | MN | — | ◇ UNVERIFIED |
| NPNatural Pack INC | Reading | PA | — | ◇ UNVERIFIED |
| NSNatural Soda | Rifle | CO | — | ◇ UNVERIFIED |
| NFNature's Footprint INC | Bellingham | WA | — | ◇ UNVERIFIED |
| NNatvar | Clayton | NC | — | ◇ UNVERIFIED |
| NANatvar, a Tekni Plex Company INC | City of Industry | CA | — | ◇ UNVERIFIED |
| NUNA Ultrahigh, LLC. | Crookston | MN | — | ◇ UNVERIFIED |
