| LML & M Precision CO | Decatur | GA | — | ● ACTIVE |
| LCLoadometer Corporation | Timonium | MD | — | ● ACTIVE |
| LMLockwood Mold Design, INC. | Churchville | NY | — | ● ACTIVE |
| LELodor Enterprises, INC | Dallas | TX | 20–99 | ● ACTIVE |
Lodox NA LLC | Painesville | OH | — | ● ACTIVE |
| LML'oemparts Machinery General Services LLC | Miami | FL | — | ● ACTIVE |
Loftis Steel & Aluminum, INC. | Nashville | TN | — | ● ACTIVE |
Lone Star Downhole Products, LLC | Cypress | TX | — | ● ACTIVE |
Longleaf Machining LLC | Brewton | AL | — | ● ACTIVE |
Loper Machine LLC | Edgewood | MD | — | ● ACTIVE |
Lorob Bees LLC | Baltimore | MD | — | ● ACTIVE |
Lowery Holding LLC | Saint Louisville | OH | — | ● ACTIVE |
LP Precision, INC | Santa Clara | CA | — | ● ACTIVE |
Lr Dynamics, INC | Salt Lake City | UT | — | ● ACTIVE |
L & R Machine INC | Rancho Cucamonga | CA | — | ● ACTIVE |
L S C Precision INC | Krum | TX | — | ● ACTIVE |
Ltmt Machining LLC | Santa Clara | CA | — | ● ACTIVE |
Ltp Modern Machine, INC. | Cypress | CA | — | ● ACTIVE |
Ludwig & Miriam Geier INC | Compton | CA | — | ● ACTIVE |
| LMLuso Machine Nj, LLC | Newark | NJ | — | ● ACTIVE |
Lx3 Corporation | Aledo | TX | — | ● ACTIVE |
Lyfe Tyme, INC. | Uvalde | TX | — | ● ACTIVE |
| LELyntech Engineering, INC. | Rochester | IN | — | ● ACTIVE |
Lz Machine LLC | Eureka | IL | — | ● ACTIVE |
M2 Additive Manufacturing LLC | Butler | PA | — | ● ACTIVE |
M2 Performance Solutions LLC | Cornelius | NC | — | ● ACTIVE |
M2 Solutions LLC | Haverhill | MA | — | ● ACTIVE |
M4 Machine LLC | Livingston | NJ | — | ● ACTIVE |
Macdiarmid, LLC | Newburyport | MA | — | ● ACTIVE |
Mace Manufacturing LLC | Englewood | CO | — | ● ACTIVE |
Machinable Innovations LLC | Bend | OR | — | ● ACTIVE |
Machine Dimension, INC. | San Jose | CA | — | ● ACTIVE |
Machine Incorporated | Stoughton | MA | — | ● ACTIVE |
| MSMachine Shop LLC | East Hardwick | VT | — | ● ACTIVE |
Machine Tech, INC. | Houma | LA | — | ● ACTIVE |
Machine Time INC | Nicholasville | KY | — | ● ACTIVE |
Machine Tool Technology LLC | South Chesterfield | VA | — | ● ACTIVE |
Machine Works, INC | Sumner | WA | — | ● ACTIVE |
Machining Systems Corporation | Crestwood | IL | — | ● ACTIVE |
Machining USA LLC | Coconut Creek | FL | — | ● ACTIVE |
Machinist Mate Services LLC | Newark | DE | — | ● ACTIVE |
| MLMachworks LLC | Thomaston | GA | — | ● ACTIVE |
| MMMagnificent Machine LLC | Silverdale | WA | — | ● ACTIVE |
Magnolia Machine Company | Auburndale | FL | — | ● ACTIVE |
Magnum Machining LLC | Richmond | IL | — | ● ACTIVE |
Mah Tooling CO | Hickory Hills | IL | — | ● ACTIVE |
| MTMajestic Tool & Machine, LLC | Solon | OH | — | ● ACTIVE |
Malcova INC | Newark | CA | — | ● ACTIVE |
Maloney Precision Manufacturing LLC | Lowell | MA | — | ● ACTIVE |
Malux Machine LLC | Stratford | CT | — | ● ACTIVE |
Manderscheid, INC | Plano | TX | — | ● ACTIVE |
Manhattan Beach Labs, INC | El Segundo | CA | — | ● ACTIVE |
Manufacture Design Innovation, INC | Gilberts | IL | — | ● ACTIVE |
Manufacturing Solutions Industries, INC | Beaumont | TX | — | ● ACTIVE |
Manufacturing Standard, LLC | Poway | CA | — | ● ACTIVE |
Manufacturing Technology LLC | Birmingham | AL | — | ● ACTIVE |
Manutek Mfg LLC | Estacada | OR | — | ● ACTIVE |
Marcu Manufacturing of Georgia, LLC | Buford | GA | — | ● ACTIVE |
| MIMarel, INC. | Gainesville | GA | 100–499 | ● ACTIVE |
Marinette Machine LLC | Marinette | WI | — | ● ACTIVE |
| MMMarin Manufacturing Services LLC | Albuquerque | NM | — | ● ACTIVE |
Marion Tool & Die INC | West Terre Haute | IN | — | ● ACTIVE |
Mark Beesley Manufacturing INC | Blairstown | NJ | — | ● ACTIVE |
Markforged INC | Waltham | MA | 100–499 | ● ACTIVE |
Markley Enterprises LLC | Cincinnati | OH | — | ● ACTIVE |
Mark Schwager INC | Imlay City | MI | — | ● ACTIVE |
| MMMarlin Machine Products | Riverside | CA | — | ● ACTIVE |
Marquee Machining & Engineering LLC | Leesburg | IN | — | ● ACTIVE |
Marrone & Co., INC. | Houston | TX | — | ● ACTIVE |
| MIMarsan INC | Germantown | WI | — | ● ACTIVE |
| MPMarshall Precision Manufacturing, INC. | Guntersville | AL | — | ● ACTIVE |
Martin Mechanical Design LLC | Pittsburgh | PA | — | ● ACTIVE |
Marvel Manufacturing LLC | Lewiston | ID | — | ● ACTIVE |
Marzilli Machine CO | Seekonk | MA | — | ● ACTIVE |
Mascon, INC. | Woburn | MA | — | ● ACTIVE |
Massivit 3d INC | Alpharetta | GA | — | ● ACTIVE |
Master Machine INC | Ham Lake | MN | — | ● ACTIVE |
Master Machine & Tool CO INC | Newport News | VA | — | ● ACTIVE |
Mathew Wallace | Grimes | CA | — | ● ACTIVE |
Matrix Machine INC | Tempe | AZ | — | ● ACTIVE |
Matrix Metalworks LLC | Sugar Land | TX | — | ● ACTIVE |
Matterhackers, INC. | Lake Forest | CA | — | ● ACTIVE |
Maumee Pattern CO | Toledo | OH | — | ● ACTIVE |
Maverick Machine Co., LLC | Tamaqua | PA | — | ● ACTIVE |
| MMMavericks Manufacturing Partners, INC | Escondido | CA | — | ● ACTIVE |
| MLMax3, LLC | Benton Harbor | MI | — | ● ACTIVE |
Maxcam CORP | Saint Paul | MN | — | ● ACTIVE |
Max Machine, LLC | Elizabethtown | PA | — | ● ACTIVE |
| MAM&b Assembly CORP | Gardena | CA | — | ● ACTIVE |
Mb Machine, LLC | Sanford | ME | — | ● ACTIVE |
Mbs Manufacturing INC. | Franklin Park | IL | — | ● ACTIVE |
| MTMcallister Tool & Machine INC | Huntsville | AL | — | ● ACTIVE |
Mcclean Anderson, LLC | Schofield | WI | — | ● ACTIVE |
Mc Engineering, INC | Mesa | AZ | — | ● ACTIVE |
Mcflusion INC | Twinsburg | OH | — | ● ACTIVE |
Mcgraw Manufacturing, INC. | Gainesville | GA | — | ● ACTIVE |
Mckeon, Matthew | Green Lane | PA | — | ● ACTIVE |
Mckiney Manufacturing and Sales, LLC | Mitchell | NE | — | ● ACTIVE |
Mcquillen Manufacturing LLC. | Honeoye Falls | NY | — | ● ACTIVE |
| MEMdf Enterprises LLC | Dayton | OH | — | ● ACTIVE |