| KCKvf CO | Elk Grove Village | IL | — | ◇ UNVERIFIED |
| LFLa Fiberglass LLC | Bogalusa | LA | — | ◇ UNVERIFIED |
| LCLake Cities Fabrication | Lewisville | TX | — | ◇ UNVERIFIED |
| LSLakeside Steel Alabama - Thomasville Finishing Works | Thomasville | AL | — | ◇ UNVERIFIED |
| LTLakeside Tech Solutions LLC | Monroe City | MO | — | ◇ UNVERIFIED |
| LMLane Metal Prods Mfg | Bedford | PA | — | ◇ UNVERIFIED |
| LSLapham-hickey Steel Corporation | Oshkosh | WI | — | ◇ UNVERIFIED |
| LFLayman Fabrication Incorporated | North Vernon | IN | — | ◇ UNVERIFIED |
| LBL & B Products CORP | Hudson | NY | — | ◇ UNVERIFIED |
| LILeaf Industries/division of J&e Manufacturing CO | Plymouth | MN | — | ◇ UNVERIFIED |
| LMLegris Mfg. CO INC | Kankakee | IL | — | ◇ UNVERIFIED |
| LMLeman Machine CO INC | Portage | PA | — | ◇ UNVERIFIED |
| LSLenex Steel | Indianapolis | IN | — | ◇ UNVERIFIED |
| LALennox Aes-reno | Reno | NV | — | ◇ UNVERIFIED |
| LALennox Aes-tallassee | Tallassee | AL | — | ◇ UNVERIFIED |
| LTLetourneau Technologies, INC | Vicksburg | MS | — | ◇ UNVERIFIED |
| LFLevco Fab INC | Ontario | CA | — | ◇ UNVERIFIED |
| LBLiebovich Brothers INC | Rockford | IL | — | ◇ UNVERIFIED |
| LMLightning Metal Specialty | Elk Grove Village | IL | — | ◇ UNVERIFIED |
| LLightolier | Wilmington | MA | — | ◇ UNVERIFIED |
| LMLincoln Manufacturing North Plant | Magnolia | TX | — | ◇ UNVERIFIED |
| LSLincoln Steel Corporation | Lincoln | NE | — | ◇ UNVERIFIED |
| LTLindsay Trnsprtn Solutions INC | Omaha | NE | — | ◇ UNVERIFIED |
 Lippert Components, INC | Goshen | IN | — | ◇ UNVERIFIED |
| Lippert Components INC. 83 | Elkhart | IN | — | ◇ UNVERIFIED |
| Lippert Components Manufacturing, INC. | White Pigeon | MI | — | ◇ UNVERIFIED |
| Lippert Components Plant 084 | Nampa | ID | — | ◇ UNVERIFIED |
| Lippert Components Plant 151 | Kendallville | IN | — | ◇ UNVERIFIED |
| LILisega INC. | Newport | TN | — | ◇ UNVERIFIED |
| LWLittle Washington Fabrications, INC. | Christiana | PA | — | ◇ UNVERIFIED |
| LMLmi Manufacturing Holdings LLC | Allenton | WI | — | ◇ UNVERIFIED |
| LIL&n Industries INC | Rushville | IL | — | ◇ UNVERIFIED |
| LELobdell Emery Mfg CO | Alma | MI | — | ◇ UNVERIFIED |
| LMLockheed Martin | Akron | OH | — | ◇ UNVERIFIED |
| LALoral Aeronutronic | Newport Beach | CA | — | ◇ UNVERIFIED |
| LCLoren Cook Co-barnes St Plant | Springfield | MO | — | ◇ UNVERIFIED |
| LPLoren Products | Lawrence | MA | — | ◇ UNVERIFIED |
| LMLoughberry Manufacturing Corporation | Saratoga Springs | NY | — | ◇ UNVERIFIED |
| LTLouisville Tin & Stove | Louisville | KY | — | ◇ UNVERIFIED |
| LRLtc Roll & Engineering | Fraser | MI | — | ◇ UNVERIFIED |
| MDMac Donald Miller Facility Solutions | Seattle | WA | — | ◇ UNVERIFIED |
| MEMac Equipment INC | Sabetha | KS | — | ◇ UNVERIFIED |
| MMMachined Metals Mfg INC | Collegeville | PA | — | ◇ UNVERIFIED |
| MLMachine Laboratory LLC | Chesterfield | MO | — | ◇ UNVERIFIED |
| MHMack Hils, INC. | Moberly | MO | — | ◇ UNVERIFIED |
| MIMadison INC / 8500 New Sapulpa Rd | Tulsa | OK | — | ◇ UNVERIFIED |
| MIMadison Industries | Los Angeles | CA | — | ◇ UNVERIFIED |
| MPMagga Products Company INC | Holly Hill | FL | — | ◇ UNVERIFIED |
| MMMagnuson Metals Utah, LLC | Salt Lake City | UT | — | ◇ UNVERIFIED |
| MPMajestic Products Company | Huntington | IN | — | ◇ UNVERIFIED |
| MSManitex Sabre INC | Knox | IN | — | ◇ UNVERIFIED |
| MMMann Made Products | Waterville | KS | — | ◇ UNVERIFIED |
| MTMapp Technologies, L.l.c. | Joplin | MO | — | ◇ UNVERIFIED |
| MPMarch Performance INC | Naples | FL | — | ◇ UNVERIFIED |
| MAMarine Accessories Corporation (mac) | Maryville | TN | — | ◇ UNVERIFIED |
| MPMarion Process Solutions | Marion | IA | — | ◇ UNVERIFIED |
| MSMarion Steel Fabrication Incorporated | Marion | IN | — | ◇ UNVERIFIED |
| MIMaritime International INC | Broussard | LA | — | ◇ UNVERIFIED |
| MEMarkovitz Ents INC Flowline Div | Whiteville | NC | — | ◇ UNVERIFIED |
| MVMark Vii Equipment Incorporated | Arvada | CO | — | ◇ UNVERIFIED |
| MCMarley Cooling Tower Company | Louisville | KY | — | ◇ UNVERIFIED |
| MSMarshall Steel Services INC. | Arvada | CO | — | ◇ UNVERIFIED |
| MSMartin Steel INC | Huntington | WV | — | ◇ UNVERIFIED |
| MTMatco Tools | Lakewood | NY | — | ◇ UNVERIFIED |
| MTMaterials Technology INC | Somerset | NJ | — | ◇ UNVERIFIED |
| MBMaterion Brush INC | Fremont | CA | — | ◇ UNVERIFIED |
| MMMathy Machine INC | Santee | CA | — | ◇ UNVERIFIED |
 Matrix Machine and Repair INC. | Jacksonville | FL | — | ◇ UNVERIFIED |
| MAMatsu Alabama, INC | Huntsville | AL | — | ◇ UNVERIFIED |
| MCMauell Corporation-utility Room | Dillsburg | PA | — | ◇ UNVERIFIED |
| MMMaxcor Manufacturing INC | Colorado Springs | CO | — | ◇ UNVERIFIED |
| MVMay-wilbert Vault-pt Huron | Port Huron | MI | — | ◇ UNVERIFIED |
| MWMazzella Welding & Fabrication INC | Wellsburg | WV | — | ◇ UNVERIFIED |
| MAMcabee Assembly Facility | Tuscaloosa | AL | — | ◇ UNVERIFIED |
| MSMcb Steel, INC. | Bessemer | AL | — | ◇ UNVERIFIED |
| MIMccullough Industries | Kenton | OH | — | ◇ UNVERIFIED |
| MIMcdermott INC | Gibson | LA | — | ◇ UNVERIFIED |
| MIMcdermott INC - Morgan City Fabrication Facility - Amelia Yard | Amelia | LA | — | ◇ UNVERIFIED |
| MTMce Technologies INC | Seattle | WA | — | ◇ UNVERIFIED |
| MAMcgill Air Flow LLC | Bennington | VT | — | ◇ UNVERIFIED |
| MDMcgill Development Corporation | Westerville | OH | — | ◇ UNVERIFIED |
| MIMcgill INC | Marengo | IL | — | ◇ UNVERIFIED |
| MCMcjunkin CORP | Princeton | WV | — | ◇ UNVERIFIED |
| MMMckinstry Metal Works INC. | Chicopee | MA | — | ◇ UNVERIFIED |
 Mclaughlin Body CO | East Moline | IL | — | ◇ UNVERIFIED |
| MSMcneely Steel & Supply | Leavenworth | KS | — | ◇ UNVERIFIED |
| MEMcstowe Engineering | East Bridgewater | MA | — | ◇ UNVERIFIED |
| MIMct Industries Inc, Government Manufacturing | Bernalillo | NM | — | ◇ UNVERIFIED |
| MSMd Stainless Services INC | Downey | CA | — | ◇ UNVERIFIED |
| MBMedina Blanking INC. | Valley City | OH | — | ◇ UNVERIFIED |
| MCMedin CORP | Totowa | NJ | — | ◇ UNVERIFIED |
| MAMercury Aircraft Bath Plant | Bath | NY | — | ◇ UNVERIFIED |
| MAMercury Aircraft INC | Hammondsport | NY | — | ◇ UNVERIFIED |
| MBMetal Bellows Corporation | Moorpark | CA | — | ◇ UNVERIFIED |
| MCMetal Components INC | Wyoming | MI | — | ◇ UNVERIFIED |
| MCMetal Craft Engineering | Fenwick | WV | — | ◇ UNVERIFIED |
| MCMetal Crafters | Ronkonkoma | NY | — | ◇ UNVERIFIED |
| MMetalcrafters | Simi Valley | CA | — | ◇ UNVERIFIED |
| MOMetalcraft of Mayville | West Bend | WI | — | ◇ UNVERIFIED |
| MCMetal Cutting CORP | Cedar Grove | NJ | — | ◇ UNVERIFIED |
