| LELincoln Electric Automation Fort Loramie | Fort Loramie | OH | 100–499 | ● ACTIVE |
Lirces 3 LLC | Macungie | PA | — | ● ACTIVE |
Little Fawn LLC | Camden | IN | — | ● ACTIVE |
| LMLlb Metal Fabrication Limited Liability Company | Honolulu | HI | — | ● ACTIVE |
Locdown Com | Brea | CA | — | ● ACTIVE |
| LRLoki Research LLC | Theodosia | MO | — | ● ACTIVE |
Lone Mountain Metalworks LLC | Rathdrum | ID | — | ● ACTIVE |
Lonestar Tactical Buildings LLC | Hempstead | TX | — | ● ACTIVE |
Lorad LLC | Westlake | OH | — | ● ACTIVE |
Lotec INC | Dallas | TX | — | ● ACTIVE |
| LTLow Temp Industries, INC. | Jonesboro | GA | 100–499 | ● ACTIVE |
Lsc Industries LLC | Jamestown | OH | — | ● ACTIVE |
Ltl Vantage, INC. | West Dennis | MA | — | ● ACTIVE |
Luna's Welding & Construction L.l.c. | Ayden | NC | — | ● ACTIVE |
Lunsford Manufacturing and Sheet Metal LLC | Grand Junction | CO | — | ● ACTIVE |
Lupco, INC. | Rowlett | TX | — | ● ACTIVE |
Lwe, INC | Meadville | PA | — | ● ACTIVE |
Lynn Ladder and Scaffolding CO INC | Springfield | MA | — | ● ACTIVE |
Lynn L. Reynolds, INC | Spokane Valley | WA | — | ● ACTIVE |
| LWLynn Welding CO INC | Newington | CT | — | ● ACTIVE |
Machina Labs INC | Chatsworth | CA | — | ● ACTIVE |
Machine and Fabrication Specialists, INC. | Hampton | VA | — | ● ACTIVE |
Macomber Cryogenics, INC | Newton | NH | — | ● ACTIVE |
Madden Fabrication, INC | Portland | OR | — | ● ACTIVE |
Mad River Fabricating, LTD. | Springfield | OH | — | ● ACTIVE |
Magic Metals, INC. | Palmer | AK | — | ● ACTIVE |
Magna Steel Sales, INC. | Beacon Falls | CT | — | ● ACTIVE |
Magnetic Aids, INC. | Marlboro | NY | — | ● ACTIVE |
Magnetic Shield CORP | Bensenville | IL | — | ● ACTIVE |
Magnet Sales & Mfg. CO INC | Culver City | CA | — | ● ACTIVE |
Maine Source Machining Co, INC | West Newfield | ME | — | ● ACTIVE |
Mainstream Waterjet, LLC | Loveland | OH | — | ● ACTIVE |
M & a Metals INC | Staten Island | NY | — | ● ACTIVE |
Manastrip Mm Corporation | Clifton Park | NY | — | ● ACTIVE |
Manufacturers Service Company, Incorporated | Woodbridge | CT | — | ● ACTIVE |
| MTManufacturing Technology Group, INC | Westfield | MA | — | ● ACTIVE |
Marine Exhaust Systems of Alabama, INC. | Fairhope | AL | — | ● ACTIVE |
Maro & Associates INC | Gwinner | ND | — | ● ACTIVE |
Marquez Wrought Iron INC | Las Cruces | NM | — | ● ACTIVE |
Marshall Metal Products INC | Marshall | MI | — | ● ACTIVE |
Marsol Technologies, INC. | Houston | TX | — | ● ACTIVE |
Mars Technologies INC | Sarver | PA | — | ● ACTIVE |
Martin Steel Fabrication, INC. | Mascoutah | IL | — | ● ACTIVE |
Masha Manufacturing, INC | Albuquerque | NM | — | ● ACTIVE |
Master Fog LLC | West Chicago | IL | — | ● ACTIVE |
Master Lock Company LLC | Deerfield | IL | — | ● ACTIVE |
Master Sheetmetal Works INC | Hanahan | SC | — | ● ACTIVE |
Master Tool & Machine, LLC | Morrison | TN | — | ● ACTIVE |
Materials Fabrication and Testing Services, INC. | Oak Ridge | TN | — | ● ACTIVE |
Materials Science International INC | Columbus | OH | — | ● ACTIVE |
Material Storage Systems INC | Humble | TX | — | ● ACTIVE |
Material System INC | Childersburg | AL | — | ● ACTIVE |
Matern Metal Works, INC | Mansfield | OH | — | ● ACTIVE |
Matthew Warren, INC | Santa Maria | CA | — | ● ACTIVE |
Maverick Manufacturing LLC | Spartanburg | SC | — | ● ACTIVE |
Max Machining LLC | Telford | PA | — | ● ACTIVE |
Mayville Engineering Company, INC. | Milwaukee | WI | — | ● ACTIVE |
Mbt Product Design & Manufacturing INC | Waynesboro | PA | — | ● ACTIVE |
Mchone Metal Fabricators, INC. | Terrell | TX | — | ● ACTIVE |
Mckenzie Productions. | Atascadero | CA | — | ● ACTIVE |
Mcmillan Design, INC. | Gig Harbor | WA | — | ● ACTIVE |
Mct Brattberg INC. | Spring | TX | — | ● ACTIVE |
Mcw Certified Welding LTD | Delta | OH | — | ● ACTIVE |
Meadow Burke, LLC | Riverview | FL | — | ● ACTIVE |
Measured Fabrication, LLC | Memphis | TN | — | ● ACTIVE |
Me Bridge Solutions LLC | South Boston | VA | — | ● ACTIVE |
Mechanical Industries Wi LLC | Milwaukee | WI | — | ● ACTIVE |
Meld Printworks Corporation | Christiansburg | VA | — | ● ACTIVE |
Meridian Rapid Defense Group LLC | Pasadena | CA | — | ● ACTIVE |
Merrick Construction Companies, INC. | Louisville | KY | — | ● ACTIVE |
Merrill Technologies Group, LLC | Saginaw | MI | — | ● ACTIVE |
Merrill Technologies Group, LLC | Alma | MI | — | ● ACTIVE |
Merritt Piping & Fabrication, INC. | Roanoke Rapids | NC | — | ● ACTIVE |
Metalbuilt LLC | Chesterfield | MI | — | ● ACTIVE |
Metalcraft of Pensacola, INC | Pensacola | FL | — | ● ACTIVE |
Metal Culverts, INC. | Jefferson City | MO | — | ● ACTIVE |
Metal Fabricators Plus LLC | Indianapolis | IN | — | ● ACTIVE |
| MIMetalloy Industries, INC. | Alachua | FL | — | ● ACTIVE |
Metals INC | Bedford | OH | — | ● ACTIVE |
Metal Works Machine and Maintenance, LLC | Calvert City | KY | — | ● ACTIVE |
Metal Workz L.l.c | Albany | KY | — | ● ACTIVE |
Metrobike LLC | Washington | DC | — | ● ACTIVE |
| MMMetro Metal Products, INC. | Medford | NY | — | ● ACTIVE |
| MHMetropolitan Home Improvement, INC. | Carolina | PR | — | ● ACTIVE |
| MSMetro Stamping & Manufacturing LLC | Haltom City | TX | — | ● ACTIVE |
Meyer Utility Structures, LLC | Memphis | TN | — | ● ACTIVE |
Miami Nation Stronghold, LLC | Reston | VA | — | ● ACTIVE |
| MCMichael Cregan | Ojai | CA | — | ● ACTIVE |
| MSMichelman Steel Enterprises LLC | Bethlehem | PA | 20–99 | ● ACTIVE |
Michigan Manufactured Products, INC | Port Huron | MI | — | ● ACTIVE |
Midwest Fabrication & Supply, LLC | Saint Paul | MN | — | ● ACTIVE |
| MSMidwest Steel Works, INC | Lincoln | NE | 20–99 | ● ACTIVE |
Mier Products, INC | Kokomo | IN | — | ● ACTIVE |
Milco Mfg LLC | Farmington Hills | MI | — | ● ACTIVE |
Military Hardware, LLC | Jacksonville | NC | — | ● ACTIVE |
Miller Fabrication and Welding Incorporated | Lexington | OH | — | ● ACTIVE |
Miller Metal Fabrication INC | Bridgeville | DE | — | ● ACTIVE |
Miller Products & Supply CO | Iron Mountain | MI | — | ● ACTIVE |
Mills Specialty Metals L.l.c. | Marietta | GA | — | ● ACTIVE |
Minton & Roberson INC | Chesapeake | VA | — | ● ACTIVE |