| MSMetro Stamping & Manufacturing LLC | Haltom City | TX | — | ● ACTIVE |
| MLMettler-toledo LLC | Columbus | OH | 100–499 | ● ACTIVE |
Mettl LLC | Houston | TX | — | ● ACTIVE |
Metwerks LLC | Rapid City | SD | — | ● ACTIVE |
Meyer Tool & Manufacturing, INC. | Oak Lawn | IL | — | ● ACTIVE |
Mgb Aero Fab LLC | Grand Prairie | TX | — | ● ACTIVE |
M.g.r. Molds INC | Sterling Heights | MI | — | ● ACTIVE |
| MHM & H Engineering Co., INC. | Danvers | MA | 20–99 | ● ACTIVE |
Michael D Fisher | Vassalboro | ME | — | ● ACTIVE |
| MGMichael Graham Racing LLC | Titusville | FL | — | ● ACTIVE |
Michael R Gesellschap | Belle | MO | — | ● ACTIVE |
| MCMichigan Cnc Tool, INC. | Whitmore Lake | MI | — | ● ACTIVE |
Michigan Manufactured Products, INC | Port Huron | MI | — | ● ACTIVE |
M.i.c. Industries, INC | Elton | PA | — | ● ACTIVE |
Mic Industries INC | Clear Brook | VA | — | ● ACTIVE |
| MWMico Welding & Machining, INC. | Nine Mile Falls | WA | — | ● ACTIVE |
Microcut, INC. | York | PA | — | ● ACTIVE |
Micro Facture LLC | Lancaster | PA | — | ● ACTIVE |
| MLMicroflux LLC | Parker | CO | — | ● ACTIVE |
Micro Instrument CORP. | Rochester | NY | — | ● ACTIVE |
Micro Logic, INC | Mahwah | NJ | — | ● ACTIVE |
Micro Machine & Electronics, INC. | Leominster | MA | — | ● ACTIVE |
Micro Mold Plastics Usa, INC | Fort Worth | TX | — | ● ACTIVE |
Micron Applied Technologies, INC | Lewisville | TX | — | ● ACTIVE |
Micron Industries of Rochester INC | Rochester | NY | — | ● ACTIVE |
| MTMicronizing Technologies LLC | Allen | TX | — | ● ACTIVE |
Microsla INC. | Pleasanton | CA | — | ● ACTIVE |
| MSMicro Steel, INC | Canoga Park | CA | — | ● ACTIVE |
Micro-tec, INC. | Canyon Country | CA | — | ● ACTIVE |
Microteq Engineering, INC | San Antonio | TX | — | ● ACTIVE |
| MCMicrowave Components Specialists, INC. | Orleans | MA | — | ● ACTIVE |
Mid-america Business Systems, LLC | Columbus | OH | — | ● ACTIVE |
Mid-atlantic Rubber, INC | Fredericksbrg | VA | — | ● ACTIVE |
Middletown Industrial Technologies, LLC | Middletown | OH | — | ● ACTIVE |
| MPMidland Plastics INC | New Berlin | WI | 20–99 | ● ACTIVE |
Mid Michigan Mfg, LLC | Pinconning | MI | — | ● ACTIVE |
| MMMidway Machining INC | Marietta | OH | — | ● ACTIVE |
Midway Swiss Turn, INC. | Wooster | OH | — | ● ACTIVE |
Midwest Circuit Technology LLC | Aurora | OH | — | ● ACTIVE |
Midwest Fabrication & Supply, LLC | Saint Paul | MN | — | ● ACTIVE |
Midwest Fastener Supply, LLC | Burnsville | MN | — | ● ACTIVE |
Midwest Lake Management, INC. | Polo | MO | — | ● ACTIVE |
Midwest Machining Solutions LLC | Saint Louis | MO | — | ● ACTIVE |
Midwest Nvg LLC | Pleasanton | KS | — | ● ACTIVE |
| MPMidwest Polymer Group INC | Baxter | MN | — | ● ACTIVE |
Midwest Precision LLC | Eastlake | OH | — | ● ACTIVE |
Mier Products, INC | Kokomo | IN | — | ● ACTIVE |
Mighty Enterprises, INC | Torrance | CA | — | ● ACTIVE |
Mike Harms & Associates, INC. | Weatherford | TX | — | ● ACTIVE |
Mikelson Machine Shop, INC. | S El Monte | CA | — | ● ACTIVE |
Mikrolar INC | Hampton | NH | — | ● ACTIVE |
| MCMikron CORP Monroe | Monroe | CT | 1–19 | ● ACTIVE |
Milco Mfg LLC | Farmington Hills | MI | — | ● ACTIVE |
Milco Wire Edm, INC. | Huntington Beach | CA | — | ● ACTIVE |
Military Hardware, LLC | Jacksonville | NC | — | ● ACTIVE |
Millar Industries, INC. | Arden | NC | — | ● ACTIVE |
Miller Fabrication and Welding Incorporated | Lexington | OH | — | ● ACTIVE |
Miller Metal Fabrication INC | Bridgeville | DE | — | ● ACTIVE |
Miller Welding & Machine CO | Brookville | PA | — | ● ACTIVE |
Millipart, INC | Glendora | CA | — | ● ACTIVE |
Mills Specialty Metals L.l.c. | Marietta | GA | — | ● ACTIVE |
Millworx Precision Machining, INC. | Corona | CA | — | ● ACTIVE |
Milspex Corporation | Saint George | UT | — | ● ACTIVE |
Milwaukee Machinetool CORP | Milwaukee | WI | — | ● ACTIVE |
Mimaki Usa, INC. | Flowery Branch | GA | — | ● ACTIVE |
Mimic Manufacturing, LLC | Heavener | OK | — | ● ACTIVE |
Mina Product Development, INC | Costa Mesa | CA | — | ● ACTIVE |
Minic Precision, INC. | Spring Grove | IL | — | ● ACTIVE |
| MIMinimatics, INC | Morgan Hill | CA | 20–99 | ● ACTIVE |
| MMMin-max Machine LTD. | Ronkonkoma | NY | — | ● ACTIVE |
Min Plastics & Supply, INC | Honolulu | HI | — | ● ACTIVE |
Minton & Roberson INC | Chesapeake | VA | — | ● ACTIVE |
| MPMira Plastics CO INC | Newton | NJ | 20–99 | ● ACTIVE |
Mischo, INC. | Hudson | WI | — | ● ACTIVE |
Mission Design & Automation, LLC | Holland | MI | — | ● ACTIVE |
Missouri Tooling & Automation, LLC | Lebanon | MO | — | ● ACTIVE |
Mitchell Metals, LLC | Marietta | GA | — | ● ACTIVE |
Mi Tech Tooling INC | Cass City | MI | — | ● ACTIVE |
Mit Holdings LLC | Lonsdale | MN | — | ● ACTIVE |
Mitsubishi Chemical Advanced Materials INC. | Reading | PA | — | ● ACTIVE |
| MFM&j Fabrication, INC. | Hartselle | AL | — | ● ACTIVE |
M & J Industries INC | Decatur | AL | — | ● ACTIVE |
Mjtek LLC | Pittsburgh | PA | — | ● ACTIVE |
Mk Environmental INC | Columbia | LA | — | ● ACTIVE |
Mk Environmental, INC | Lombard | IL | — | ● ACTIVE |
Mk Machining LLC | Hallsville | MO | — | ● ACTIVE |
Mkm Manufacturing & Design, INC. | Newbury Park | CA | — | ● ACTIVE |
| MFM&m Finishing, LLC | Walton | KY | — | ● ACTIVE |
| MCMmg CORP | Ontario | CA | — | ● ACTIVE |
M&m Machining, INC. | Ventura | CA | — | ● ACTIVE |
M.m. Newman CORP | Marblehead | MA | — | ● ACTIVE |
M&m Precision Machine Company LLC | Timmonsville | SC | — | ● ACTIVE |
M & M Sheet Metal, INC. | Williamsport | PA | — | ● ACTIVE |
| MBMobile Barriers LLC | Golden | CO | — | ● ACTIVE |
| MIMobius Industries, INC. | Cambridge | MA | — | ● ACTIVE |
Model Products, INC. | Albuquerque | NM | — | ● ACTIVE |
Modern Machine Company | Tehachapi | CA | — | ● ACTIVE |
Modern Machine Works, INC. | Albany | OR | — | ● ACTIVE |
| MMModern Manufacturing, INC. | Cincinnati | OH | 20–99 | ● ACTIVE |
Modulus Machine, LLC | Lebanon | OR | — | ● ACTIVE |