| MWMetal Works INC | Lexington | SC | — | ◇ UNVERIFIED |
| MWMetal Works INC. | Spencer | IA | — | ◇ UNVERIFIED |
| MWMetal Works INC. | Londonderry | NH | — | ◇ UNVERIFIED |
| MWMetal Works Performance, Inc | Saint Charles | IL | — | ◇ UNVERIFIED |
| MIMetco Incorporated | Anderson | SC | — | ◇ UNVERIFIED |
| MCMetem Corporation | Parsippany | NJ | — | ◇ UNVERIFIED |
| MFMet Fab International, INC. | Waynesboro | VA | — | ◇ UNVERIFIED |
| MDMethods Distributors and Manufacturers, INC. | Fox Lake | IL | — | ◇ UNVERIFIED |
| MLMetkote Laminated Prod/taylor Plt | Taylor | PA | — | ◇ UNVERIFIED |
| MIMet-l-fab INC | Londonderry | NH | — | ◇ UNVERIFIED |
| MIMetl-fab, INC. | Omaha | NE | — | ◇ UNVERIFIED |
| MBMetro Boiler Tube Company, INC. | Gonzales | LA | — | ◇ UNVERIFIED |
| MMMetro Machine - Engineering CORP | Eden Prairie | MN | — | ◇ UNVERIFIED |
| MMMetro Manufacturing INC | Saint Paul | MN | — | ◇ UNVERIFIED |
| MMMetro Metal Supply, INC. | Denver | CO | — | ◇ UNVERIFIED |
| MCMetroplex Conveyor & Services, LLC | Quinlan | TX | — | ◇ UNVERIFIED |
| MFMetroplex Fabrication and Erection, LLP | Azle | TX | — | ◇ UNVERIFIED |
| MSMetroplex Sheet Metal II LLC | Garland | TX | — | ◇ UNVERIFIED |
| MSMetro South Machining INC | Burnsville | MN | — | ◇ UNVERIFIED |
| MSMetro Steel | Spring Valley | CA | — | ◇ UNVERIFIED |
| MSMetro Steel Fab INC | San Jose | CA | — | ◇ UNVERIFIED |
| MTMetro Test and Balance, INC. | Capitol Heights | MD | — | ◇ UNVERIFIED |
| MWMetro Welding & Fabricating, INC. | Big Bend | WI | — | ◇ UNVERIFIED |
| MBMetwood Building Solutions | Boones Mill | VA | — | ◇ UNVERIFIED |
| MPMetz Properties LLC | New River | AZ | — | ◇ UNVERIFIED |
| MMMexia Main, East, and West Plants | Mexia | TX | — | ◇ UNVERIFIED |
| MCMexico City Iron Works | San Francisco | CA | — | ◇ UNVERIFIED |
| MHMexico Heating Co., INC. | Mexico | MO | — | ◇ UNVERIFIED |
| MCMeyers Construction INC | Madera | CA | — | ◇ UNVERIFIED |
 Meyer Utility Structures, LLC Plant No. 1663 | Hager City | WI | — | ◇ UNVERIFIED |
| MRMfg. Resources, INC. | Rochester | NY | — | ◇ UNVERIFIED |
| MDM&g Duravent, INC. | Albany | NY | — | ◇ UNVERIFIED |
| MMM.g. Manufacturing LLC | Blanding | UT | — | ◇ UNVERIFIED |
 Mgt Manufacturing LLC | Springville | AL | — | ◇ UNVERIFIED |
| Mgt Manufacturing LLC | Springville | AL | — | ◇ UNVERIFIED |
| MHM & H Metal Specialties INC | Irving | TX | — | ◇ UNVERIFIED |
| MHM & H Metal Specialties, INC. | Dallas | TX | — | ◇ UNVERIFIED |
| MMMHS Management LLC | Pleasant Grove | UT | — | ◇ UNVERIFIED |
| MVMiami Valley Manufacturing & Assembly, INC. | Dayton | OH | — | ◇ UNVERIFIED |
| MAMichael A. Melton (EPC) | Shelby | NC | — | ◇ UNVERIFIED |
| MEMichael E Taylor | Oregon City | OR | — | ◇ UNVERIFIED |
| MJMichael James Properties, LLC | Gainesville | GA | — | ◇ UNVERIFIED |
| MMMichael Marhofer | Cicero | IL | — | ◇ UNVERIFIED |
| MMMichael Mccrorey | Myrtle Point | OR | — | ◇ UNVERIFIED |
| MMMichael Mccrorey | Myrtle Point | OR | — | ◇ UNVERIFIED |
| MPMichael Piazza, LLC | Tampa | FL | — | ◇ UNVERIFIED |
| MSMichael Spencer and Karen Spencer, Trustees of the Michael Alan Spencer and Kare | Temecula | CA | — | ◇ UNVERIFIED |
| MSMichael Steiro | Lebanon | MO | — | ◇ UNVERIFIED |
| MTMichael Tareski | Medical Lake | WA | — | ◇ UNVERIFIED |
| MWMichael Wynakos | Monroe | WA | — | ◇ UNVERIFIED |
| MZMichal Zieba | Brooklyn | NY | — | ◇ UNVERIFIED |
| MIMichelman-cancelliere Iron Works, INC. | Bath | PA | — | ◇ UNVERIFIED |
| MSMichelman Steel | Allentown | PA | — | ◇ UNVERIFIED |
| MMMichigan Magna INC | Romulus | MI | — | ◇ UNVERIFIED |
| MMMicra Manufacturing | Hugo | MN | — | ◇ UNVERIFIED |
 Microcast Technologies | Avenel | NJ | — | ◇ UNVERIFIED |
| MOMicrocoat of Santa Rosa | Santa Rosa | CA | — | ◇ UNVERIFIED |
| MLMicro-fab LLC | Minneapolis | MN | — | ◇ UNVERIFIED |
| MFMicro Finish & Coating INC. | Kansas City | MO | — | ◇ UNVERIFIED |
| MAMicroflex Automotive | Ormond Beach | FL | — | ◇ UNVERIFIED |
| MMMicro Machine INC | Greenfield | MN | — | ◇ UNVERIFIED |
| MMMicromatics Machine CO | Hollis | NH | — | ◇ UNVERIFIED |
| MMMicro Mfg. INC. | Caledonia | MI | — | ◇ UNVERIFIED |
| MMicromist | Calimesa | CA | — | ◇ UNVERIFIED |
| MPMicron Precision LLC Dba King Machine Fayetteville | Fayetteville | NC | — | ◇ UNVERIFIED |
| MSMicro Space Products | Torrance | CA | — | ◇ UNVERIFIED |
| MPMicrotek Pattern Inc | Decatur | IL | — | ◇ UNVERIFIED |
 Microteq Engineering INC | San Antonio | TX | — | ◇ UNVERIFIED |
 Microtool INC. | Shawnee Mission | KS | — | ◇ UNVERIFIED |
| MMMid-american Machine & Equipment, INC. | Le Roy | KS | — | ◇ UNVERIFIED |
| MSMid-america Steel Products, INC. | Corning | AR | — | ◇ UNVERIFIED |
| MSMid-atlantic Steel, LLC | New Castle | DE | — | ◇ UNVERIFIED |
| MCMid City Precision INC | Saint Louis Park | MN | — | ◇ UNVERIFIED |
| MCMid City Precision LLC | Wausau | WI | — | ◇ UNVERIFIED |
| MMMiddleton Machining & Welding, INC. | Middleton | WI | — | ◇ UNVERIFIED |
| MDMi Dept/natural Resources and Environment | River Rouge | MI | — | ◇ UNVERIFIED |
| MLMidget Louver | Milford | CT | — | ◇ UNVERIFIED |
| MKMid Kansas Machine INC. | Mcpherson | KS | — | ◇ UNVERIFIED |
| MFMidland Fabricators & Process Systems LLC | Metairie | LA | — | ◇ UNVERIFIED |
| MMMidland Mechanical, INC. | Billings | MT | — | ◇ UNVERIFIED |
| MMMid-ohio Mechanical, INC. | Columbus | OH | — | ◇ UNVERIFIED |
| MSMid South Industrial INC. | Gregory | TX | — | ◇ UNVERIFIED |
| MMMid-south Maintenance, INC. | Memphis | TN | — | ◇ UNVERIFIED |
| MPMidsouth Power Equipment Company, INC. | Greensboro | NC | — | ◇ UNVERIFIED |
| MSMid State Fabricating INC | Blaine | MN | — | ◇ UNVERIFIED |
| MMMid-state Machineand Fabricating CORP. | Lakeland | FL | — | ◇ UNVERIFIED |
| MMMid-state Machine & Fabricating Corporation | Lakeland | FL | — | ◇ UNVERIFIED |
| MMMid-state Machine & Fabricating Corporation | Bartow | FL | — | ◇ UNVERIFIED |
| MMMid-state Machine Shop, INC. | East Dublin | GA | — | ◇ UNVERIFIED |
| MMMid-state Manufacturing, LLC | Mt. Ulla | NC | — | ◇ UNVERIFIED |
| MMMidstate Manufacturing & Marketing, INC. | Oklahoma City | OK | — | ◇ UNVERIFIED |
| MMMid-states Mechanical Services INC | Mankato | MN | — | ◇ UNVERIFIED |
| MVMid Valley Metal Works, Inc. | Salem | OR | — | ◇ UNVERIFIED |
| MVMid Valley Sheet Metal INC. | La Feria | TX | — | ◇ UNVERIFIED |
| MMMidway Machine & Welding Shop, INC. | Burleson | TX | — | ◇ UNVERIFIED |
| MAMidwest Automation, INC. | Heavener | OK | — | ◇ UNVERIFIED |
 Midwest Fabrication & Supply LLC Dba Superior Air | Zumbrota | MN | — | ◇ UNVERIFIED |
| MKMidwest Knifemaker LLC | Mankato | MN | — | ◇ UNVERIFIED |
| MMMidwest Machine, LLC | Beloit | WI | — | ◇ UNVERIFIED |
| MMMidwest Machining INC. | Harper | KS | — | ◇ UNVERIFIED |
