| MMModern Machinery CO | Bay City | MI | — | ◇ UNVERIFIED |
 Modern Machine Shop, INC. | Laredo | TX | — | ◇ UNVERIFIED |
 Modern Machine Works, INC. | Bismarck | ND | — | ◇ UNVERIFIED |
 Modern Metal Solutions LLC | Hudson | NH | — | ◇ UNVERIFIED |
| MSModern Solutions of Bay County, INC. | Panama City | FL | — | ◇ UNVERIFIED |
| MTModern Tool INC | Coon Rapids | MN | — | ◇ UNVERIFIED |
| MCModular Concepts INC | Burnsville | MN | — | ◇ UNVERIFIED |
| MMModular Metal Fabricators INC | Moreno Valley | CA | — | ◇ UNVERIFIED |
| MIModutek International LLC | Soperton | GA | — | ◇ UNVERIFIED |
| MBMoenter Bilt Performance Engineering, LLC | Woodville | OH | — | ◇ UNVERIFIED |
| MOM - O Fabricating INC | Rice | MN | — | ◇ UNVERIFIED |
| MMMolalla Machine Shop INC | Molalla | OR | — | ◇ UNVERIFIED |
| MEMold Eliminators of Florida, INC. | Jacksonville | FL | — | ◇ UNVERIFIED |
| MTMolding Technologies, INC | Hebron | OH | — | ◇ UNVERIFIED |
| MMMolenda Machining | Concord | CA | — | ◇ UNVERIFIED |
| MCMomomi CO LTD Dba Tru-form Metals | Livermore | CA | — | ◇ UNVERIFIED |
| MMMonalex Manufacturing, INC. | Douglas | MA | — | ◇ UNVERIFIED |
| MHMonarch HVAC | Grand Rapids | MI | — | ◇ UNVERIFIED |
| MMMonarch Metal Manufacturing, INC. | Denver | CO | — | ◇ UNVERIFIED |
| MMMongoose Metals INC | Salem | OR | — | ◇ UNVERIFIED |
| MMMonovision Machine, LLC | Massillon | OH | — | ◇ UNVERIFIED |
| MMMonroe Mold LLC | Monroe | MI | — | ◇ UNVERIFIED |
| MPMonroe Piping & Sheet Metal | Webster | NY | — | ◇ UNVERIFIED |
| MMMonster Mud Pits INC. | Fort Stockton | TX | — | ◇ UNVERIFIED |
| MMMonster Mud Pits INC. | Mentone | TX | — | ◇ UNVERIFIED |
| MTMontague Tool and Manufacturing Company | Clio | MI | — | ◇ UNVERIFIED |
| MTMontgomery Tank of Louisiana INC | Montgomery | LA | — | ◇ UNVERIFIED |
| MIMonti INC. Santa Teresa Plant | Santa Teresa | NM | — | ◇ UNVERIFIED |
| MFMoody Fabrication & Machine, INC. | Jacksonville | FL | — | ◇ UNVERIFIED |
| MIMooney Industries Precision Machining | Canoga Park | CA | — | ◇ UNVERIFIED |
| MFMoon Fabricating Corporation | Kokomo | IN | — | ◇ UNVERIFIED |
| MMMoonlight Manufacturing, INC. | Jurupa Valley | CA | — | ◇ UNVERIFIED |
| MMMorales Motorsports | Daly City | CA | — | ◇ UNVERIFIED |
| MMMorford Managers, LLC | Edgewood | NM | — | ◇ UNVERIFIED |
| MOMorgan's Outdoor Living INC. | Concord | CA | — | ◇ UNVERIFIED |
| MIMorlin, INC. | Erie | PA | — | ◇ UNVERIFIED |
| MBMorris Building LLC | Loveland | CO | — | ◇ UNVERIFIED |
| MMMorris Machine & Welding, INC. | Baxley | GA | — | ◇ UNVERIFIED |
| MCMorrison Custom Welding, INC. | Wooster | OH | — | ◇ UNVERIFIED |
| MEMorrison Engineering & Machining INC | Tualatin | OR | — | ◇ UNVERIFIED |
| MBMosier Brothers | Woodlake | CA | — | ◇ UNVERIFIED |
| MIMote INC Dba Allen Company | Minnetonka | MN | — | ◇ UNVERIFIED |
| MIMotek-team Industries INC | Cambridge | MN | — | ◇ UNVERIFIED |
| MSMotive Systems Engineering CORP | Rancho Cordova | CA | — | ◇ UNVERIFIED |
| MTMotorsport Tech, INC. | Reno | NV | — | ◇ UNVERIFIED |
| MTMotorsport Tech, INC. | Sparks | NV | — | ◇ UNVERIFIED |
| MMMoundville Metal Works, INC | Moundville | AL | — | ◇ UNVERIFIED |
| MMMountaineer Machine & Hydraulics, INC. | Athens | WV | — | ◇ UNVERIFIED |
| MTMountain Town Machine CORP | Mount Sterling | KY | — | ◇ UNVERIFIED |
| MZMount Zion Machine LLC | Morgantown | IN | — | ◇ UNVERIFIED |
| MHMowdy Holdings LLC | Duncan | OK | — | ◇ UNVERIFIED |
| MDMoz Designs INC | Livermore | CA | — | ◇ UNVERIFIED |
| MGMp & G Machine & Design, INC. | Lewiston | ME | — | ◇ UNVERIFIED |
| MPM. P. H. Industries, INC. | Gainesville | FL | — | ◇ UNVERIFIED |
| MMMpv Morganton Pressure Vessels, LLC | Bay Minette | AL | — | ◇ UNVERIFIED |
| MMMpv Morganton Pressure Vessels North Carolina, LLC | Bay Minette | AL | — | ◇ UNVERIFIED |
| MOMq Ornamental | Chula Vista | CA | — | ◇ UNVERIFIED |
| MEM&r Engineering CO Dba S&h Glenco Manufacturing | Ontario | CA | — | ◇ UNVERIFIED |
| MEM&r Engineering Company Dba D&b Plastics | Orange | CA | — | ◇ UNVERIFIED |
| MIMrl Industries | Itasca | IL | — | ◇ UNVERIFIED |
| MRM Rodrigue & Son INC - Vacherie Plant | Vacherie | LA | — | ◇ UNVERIFIED |
| MPMr. Pin, Inc | Minneapolis | MN | — | ◇ UNVERIFIED |
| MIMrs Industrial, INC | Columbus | OH | — | ◇ UNVERIFIED |
| MSM - S Automated Feeding Systems INC | Burnsville | MN | — | ◇ UNVERIFIED |
| MLMsjc, LLC | Village of Menomonee Falls | WI | — | ◇ UNVERIFIED |
| MTMSK Tool & Die, Inc. | Avon Lake | OH | — | ◇ UNVERIFIED |
| MSMsm Sheet Metal | Sparks | NV | — | ◇ UNVERIFIED |
| MPM&S Precision Machine Co. | Queensbury | NY | — | ◇ UNVERIFIED |
| MCMssm CORP | Pueblo Area | CO | — | ◇ UNVERIFIED |
| MGMt Geo-tech Tools, LLC | Houston | TX | — | ◇ UNVERIFIED |
| MPMtg Precision Sheet Metal | Pembroke | MA | — | ◇ UNVERIFIED |
| MLMtm LLC | San Jose | CA | — | ◇ UNVERIFIED |
| MHMTN Holdings LLC | Dover | NH | — | ◇ UNVERIFIED |
| MMMTS Manufacturing, Inc. | New Richmond | WI | — | ◇ UNVERIFIED |
| MMMTTI Manufacturing Group, LLC | Greenville | SC | — | ◇ UNVERIFIED |
| MIMueller Industries, L.L.C. | Saint Louis | MO | — | ◇ UNVERIFIED |
| MOMueller Ornamental Iron Works, INC. | Elk Grove Village | IL | — | ◇ UNVERIFIED |
| MRMueller Refrigeration Products Company | Hartsville | TN | — | ◇ UNVERIFIED |
| MNMulcahy Nickolaus | Oakdale | MN | — | ◇ UNVERIFIED |
| MMMulti Metals Company, INC. | Greensburg | PA | — | ◇ UNVERIFIED |
| MMMultisource Manufacturing LLC | Burnsville | MN | — | ◇ UNVERIFIED |
| MMMultisource Manufacturing LLC | Hopkins | MN | — | ◇ UNVERIFIED |
| MMMultisource Manufacturing LLC | Chisago City | MN | — | ◇ UNVERIFIED |
| MMMultisource Manufacturing LLC - Onamia | Onamia | MN | — | ◇ UNVERIFIED |
 Multix Precision Manufacturing Inc | Monrovia | IN | — | ◇ UNVERIFIED |
| MEMunicipal Equipment Exporters INC Dba Max-life Mfg | Stanton | CA | — | ◇ UNVERIFIED |
| MMMunns Manufacturing INC. | Tremonton | UT | — | ◇ UNVERIFIED |
| MMMurphy Machine INC | Eden Prairie | MN | — | ◇ UNVERIFIED |
| MMMurphy Mechanical & Machine, LLC | Rushville | NY | — | ◇ UNVERIFIED |
| MFMurray Fabrication Facility | Murray | UT | — | ◇ UNVERIFIED |
| MIMurton INC. | Cleveland | OH | — | ◇ UNVERIFIED |
| MMMushro Machine & Tool Works, Inc. | Streator | IL | — | ◇ UNVERIFIED |
| MMMusic's Metal Works, LLC. | Dayton | OH | — | ◇ UNVERIFIED |
| MMMuskogee Metal Fabricators, INC. | Muskogee | OK | — | ◇ UNVERIFIED |
| MMMust Machining & Fabrication LLC | Saint Helena | CA | — | ◇ UNVERIFIED |
| MIMutual Industries INC | Seattle | WA | — | ◇ UNVERIFIED |
| MM+v | El Paso | TX | — | ◇ UNVERIFIED |
| MIMVB Industries, Inc. | Deerfield Beach | FL | — | ◇ UNVERIFIED |
| MIMwi INC | Minneapolis | MN | — | ◇ UNVERIFIED |
| MWM & W Manufacturing INC | Iola | KS | — | ◇ UNVERIFIED |
