Magellan Aerospace, Middletown, INC | Middletown | OH | Transportation Equipment Manufacturing336412 | 100-499 | ● ACTIVE |
| MRMagnesita Refractories/york | York | PA | Food Manufacturing311119 | 100-499 | ● ACTIVE |
Magnetic Inspection Laboratory, INC | Elk Grove Village | IL | Fabricated Metal Product Manufacturing332812 | 100-499 | ● ACTIVE |
Magnetic & Penetrant Services Co., INC. | Seattle | WA | Fabricated Metal Product Manufacturing332813 | 100-499 | ● ACTIVE |
| MIMagnetrol International INC | Aurora | IL | Computer and Electronic Product Manufacturing334513 | 100-499 | ● ACTIVE |
| MSMagnolia Steel CO INC | Meridian | MS | Fabricated Metal Product Manufacturing332312 | 100-499 | ● ACTIVE |
Main Industries, INC. | Hampton | VA | Transportation Equipment Manufacturing336611 | 100-499 | ● ACTIVE |
Major Tool & Machine INC | Indianapolis | IN | Fabricated Metal Product Manufacturing332710 | 100-499 | ● ACTIVE |
Malco Products INC | Barberton | OH | Chemical Manufacturing325611 | 100-499 | ● ACTIVE |
| MRMallinckrodt - Raleigh Pharmaceutical Plant | Raleigh | NC | Chemical Manufacturing325194 | 100-499 | ● ACTIVE |
| MEManitou Equipment America, LLC. - Madison | Madison | SD | Fabricated Metal Product Manufacturing332212 | 100-499 | ● ACTIVE |
Mannkind Corporation | Danbury | CT | Chemical Manufacturing325199 | 100-499 | ● ACTIVE |
Mapal INC | Port Huron | MI | Machinery Manufacturing333515 | 100-499 | ● ACTIVE |
| MGMarina Graphic Center INC | Hawthorne | CA | Printing and Related Support Activities323111 | 100-499 | ● ACTIVE |
Marine Travelift INC | Sturgeon Bay | WI | Fabricated Metal Product Manufacturing332999 | 100-499 | ● ACTIVE |
| MBMarion Body Works | Marion | WI | Machinery Manufacturing333924 | 100-499 | ● ACTIVE |
| MAMark Anthony Brewing | Columbia | SC | Beverage and Tobacco Product Manufacturing312120 | 100-499 | ● ACTIVE |
Marki Microwave LLC | Morgan Hill | CA | Computer and Electronic Product Manufacturing334413 | 100-499 | ● ACTIVE |
Marking Services INC | Milwaukee | WI | Paper Manufacturing322220 | 100-499 | ● ACTIVE |
Marmon Aerospace & Defense LLC | Manchester | NH | Electrical Equipment, Appliance & Component Manufacturing335929 | 100-499 | ● ACTIVE |
| MUMarmon Utility LLC | Seymour | CT | Primary Metal Manufacturing331491 | 100-499 | ● ACTIVE |
| MFMarsh Furniture CO | High Point | NC | Furniture and Related Product Manufacturing337110 | 100-499 | ● ACTIVE |
Mason Electric CO. | Sylmar | CA | Transportation Equipment Manufacturing336413 | 100-499 | ● ACTIVE |
| MCMasonite Corporation | Stanley | VA | Wood Product Manufacturing321911 | 100-499 | ● ACTIVE |
Master Boat Builders, INC. | Coden | AL | Transportation Equipment Manufacturing336611 | 100-499 | ● ACTIVE |
| MCMasterbrand Cabinets, INC. | Grants Pass | OR | Furniture and Related Product Manufacturing337110 | 100-499 | ● ACTIVE |
| MTMaterion Technical Materials INC. | Lincoln | RI | Fabricated Metal Product Manufacturing332812 | 100-499 | ● ACTIVE |
Mayday Manufacturing CO. | Denton | TX | Transportation Equipment Manufacturing336413 | 100-499 | ● ACTIVE |
Maynard Steel Casting CO | Milwaukee | WI | Primary Metal Manufacturing331510 | 100-499 | ● ACTIVE |
Mb Aerospace Warren LLC | Warren | MI | Fabricated Metal Product Manufacturing332710 | 100-499 | ● ACTIVE |
Mbl (usa) Corporation | Ottawa | IL | Plastics and Rubber Products Manufacturing326220 | 100-499 | ● ACTIVE |
Mcclarin Plastics, LLC | Wapato | WA | Plastics and Rubber Products Manufacturing326199 | 100-499 | ● ACTIVE |
| MDMccormick Distilling | Weston | MO | Beverage and Tobacco Product Manufacturing312130 | 100-499 | ● ACTIVE |
Mcl Industries, INC. | Pulaski | WI | Electrical Equipment, Appliance & Component Manufacturing335314 | 100-499 | ● ACTIVE |
| MDMcwane Ductile - New Jersey | Phillipsburg | NJ | Primary Metal Manufacturing331511 | 100-499 | ● ACTIVE |
| MCMeco CORP | Greeneville | TN | Fabricated Metal Product Manufacturing332119 | 100-499 | ● ACTIVE |
| MSMedeco Security Locks INC | Salem | VA | Fabricated Metal Product Manufacturing332510 | 100-499 | ● ACTIVE |
| MPMedical Products Laboratories, INC. | Philadelphia | PA | Chemical Manufacturing325412 | 100-499 | ● ACTIVE |
Medix Specialty Vehicles, LLC | Elkhart | IN | Transportation Equipment Manufacturing336211 | 100-499 | ● ACTIVE |
| MVMedtronic Vascular | Santa Rosa | CA | Fabricated Metal Product Manufacturing332994 | 100-499 | ● ACTIVE |
| MEM E Global INC | Tempe | AZ | Primary Metal Manufacturing331513 | 100-499 | ● ACTIVE |
Meridian Life Science INC | Memphis | TN | Chemical Manufacturing325412 | 100-499 | ● ACTIVE |
Merrill Iron & Steel INC. | Schofield | WI | Fabricated Metal Product Manufacturing332312 | 100-499 | ● ACTIVE |
Mersen USA Ptt CORP | Boonton | NJ | Fabricated Metal Product Manufacturing332999 | 100-499 | ● ACTIVE |
Mesa Products INC | Tulsa | OK | Electrical Equipment, Appliance & Component Manufacturing335999 | 100-499 | ● ACTIVE |
| MIMestek INC | Westfield | MA | Machinery Manufacturing333414 | 100-499 | ● ACTIVE |
Metal Coatings CORP | Houston | TX | Fabricated Metal Product Manufacturing332812 | 100-499 | ● ACTIVE |
| MCMetal Container CORP | New Windsor | NY | Fabricated Metal Product Manufacturing332431 | 100-499 | ● ACTIVE |
| MCMetal Container Corporation | Arnold | MO | Fabricated Metal Product Manufacturing332431 | 100-499 | ● ACTIVE |
| MOMetalcraft of Mayville INC | Mayville | WI | Fabricated Metal Product Manufacturing332320 | 100-499 | ● ACTIVE |