Martinez and Turek, INC. | Rialto | CA | — | ● ACTIVE |
Martin Machine & Welding INC | Halstead | KS | — | ● ACTIVE |
Martin-ray Laundry Systems, INC | Denver | CO | 1–19 | ● ACTIVE |
| MTMartinrea Tuscaloosa, INC. | Tuscaloosa | AL | 100–499 | ● ACTIVE |
Marton Precision Manufacturing, LLC | Fullerton | CA | 20–99 | ● ACTIVE |
Marvin Engineering Co, INC | Inglewood | CA | — | ● ACTIVE |
Marvin Test Solutions, INC. | Irvine | CA | — | ● ACTIVE |
Marx Digital Mfg. INC. | Santa Clara | CA | — | ● ACTIVE |
Mas Components & Coatings, LLC | Selmer | TN | — | ● ACTIVE |
| MCMasimo Corporation | Irvine | CA | — | ● ACTIVE |
Mass Finishing INC | Howard Lake | MN | — | ● ACTIVE |
Mass Precision, INC. | San Jose | CA | — | ● ACTIVE |
Mastel Precision Surgical Instruments, INC. | Rapid City | SD | — | ● ACTIVE |
Masterbilt INC | South Bend | IN | — | ● ACTIVE |
Master Bolt LLC | Elyria | OH | 20–99 | ● ACTIVE |
Master Machining, INC | Castle Hayne | NC | — | ● ACTIVE |
Master Metal Products Company | San Jose | CA | — | ● ACTIVE |
Master Precision Machining | Santa Clara | CA | — | ● ACTIVE |
Master Research & Manufacturing, INC. | Norwalk | CA | — | ● ACTIVE |
Masters Machine Company | Bristol | ME | 20–99 | ● ACTIVE |
Master Tool & Mfg., INC. | Hiawatha | IA | 20–99 | ● ACTIVE |
Matenaer CORP | West Bend | WI | — | ● ACTIVE |
| MPMaterion Precision Optics and Thin Film Coatings INC | Westford | MA | — | ● ACTIVE |
Materna Medical, INC | Mountain View | CA | — | ● ACTIVE |
| MIMatthews Industries INC. | Decatur | AL | 20–99 | ● ACTIVE |
Matthias Enterprises, INC | Newport News | VA | — | ● ACTIVE |
Mauell CORP | Dillsburg | PA | 20–99 | ● ACTIVE |
Mauston Tool Corporation | Mauston | WI | — | ● ACTIVE |
Maverick Aerospace LLC | City of Industry | CA | — | ● ACTIVE |
Mavrix, INC. | New Berlin | WI | — | ● ACTIVE |
| MCMax Coating INC | Birmingham | AL | 20–99 | ● ACTIVE |
Maxsteel Fabrication, LLC | Paris | TN | 20–99 | ● ACTIVE |
Maynard INC | Fayetteville | AR | — | ● ACTIVE |
May Tool and Mold Co., INC. | Kansas City | MO | — | ● ACTIVE |
Mazak CORP | Florence | KY | — | ● ACTIVE |
Maztech Industries LLC | Irvine | CA | — | ● ACTIVE |
M-b Companies, INC | New Holstein | WI | — | ● ACTIVE |
| MCMbi Construction Services INC | Yakima | WA | — | ● ACTIVE |
M & B Machine, INC. | Carlisle | PA | 20–99 | ● ACTIVE |
Mcalpin Industries INC. | Rochester | NY | — | ● ACTIVE |
Mccay Tool and Engineering Company | Saint Louis | MO | — | ● ACTIVE |
| MSMccombs Steel Company | Statesville | NC | 20–99 | ● ACTIVE |
Mcdonald Air & Sheet Metal INC. | Orlando | FL | 20–99 | ● ACTIVE |
Mcgill Airflow LLC | Fountain Inn | SC | 20–99 | ● ACTIVE |
Mcgill Hose & Coupling, INC. | East Longmeadow | MA | — | ● ACTIVE |
Mcginley Orthopaedic Innovations, INC. | Casper | WY | — | ● ACTIVE |
| MBMcmellon Bros., Incorporated | Stratford | CT | 20–99 | ● ACTIVE |
Mcnally Industries, LLC | Grantsburg | WI | — | ● ACTIVE |
Mcneil Group INC | Columbus | OH | — | ● ACTIVE |
Mcneil Industries INC | Painesville | OH | 20–99 | ● ACTIVE |
Mcneilus Steel INC | Dodge Center | MN | — | ● ACTIVE |
Mct INC | Albuquerque | NM | — | ● ACTIVE |
Mct Industries, INC. | Bernalillo | NM | — | ● ACTIVE |
| MPMdc Precision LLC | Hayward | CA | — | ● ACTIVE |
Mdl Solutions Incorporated | Hamel | MN | — | ● ACTIVE |
Md Plastics INC. | Columbiana | OH | — | ● ACTIVE |
Meaden Precision Machined Products Company | Burr Ridge | IL | 20–99 | ● ACTIVE |
Mechanical Analysis/repair, INC. | Lodi | CA | — | ● ACTIVE |
Mechanical Development Company, Incorporated | Salem | VA | 20–99 | ● ACTIVE |
| MDMechanical Devices CO | Bloomington | IL | 100–499 | ● ACTIVE |
Mechanical Equipment Company, INC. | Mandeville | LA | 100–499 | ● ACTIVE |
Mechanical Metal Finishing CO | Gardena | CA | — | ● ACTIVE |
Medartis INC | Warsaw | IN | — | ● ACTIVE |
| MIMedbio INC | Grand Rapids | MI | 100–499 | ● ACTIVE |
Medeia, INC | Santa Barbara | CA | — | ● ACTIVE |
Medford Technologies, INC. | Tukwila | WA | — | ● ACTIVE |
Medgyn Products INC | Westmont | IL | — | ● ACTIVE |
Medical Devices, INC. | Romulus | MI | — | ● ACTIVE |
Medical Graphics Corporation | Saint Paul | MN | — | ● ACTIVE |
Medicapture, INC | Plymouth Mtng | PA | — | ● ACTIVE |
Medi-dyne Healthcare Products, LTD. | Colleyville | TX | — | ● ACTIVE |
| MTMedin Technologies INC | Totowa | NJ | — | ● ACTIVE |
| MCMedi-nuclear CORP INC | Baldwin Park | CA | — | ● ACTIVE |
Medipoint Holdings LLC | Mineola | NY | — | ● ACTIVE |
Medone Surgical, INC | Sarasota | FL | — | ● ACTIVE |
Med-pac INC | Lake Park | MN | — | ● ACTIVE |
| MIMedrx, INC. | Largo | FL | — | ● ACTIVE |
| MLMedspira, LLC | Minneapolis | MN | — | ● ACTIVE |
Medtec Applications INC | Glendale Heights | IL | — | ● ACTIVE |
| MMedtorque | Kenosha | WI | 20–99 | ● ACTIVE |
Megadyne Medical Products INC | Blue Ash | OH | — | ● ACTIVE |
Mega Precision LLC | Newington | CT | — | ● ACTIVE |
Megatech Manufacturing LLC | Westminster | CA | — | ● ACTIVE |
Megator CORP | Pittsburgh | PA | — | ● ACTIVE |
| MDMeggitt Defense Systems, INC. | Irvine | CA | 100–499 | ● ACTIVE |
Meiden America Switchgear, INC | Gray Court | SC | 20–99 | ● ACTIVE |
Mekra Lang North America, LLC | Ridgeway | SC | 100–499 | ● ACTIVE |
Melco Steel INC | Azusa | CA | — | ● ACTIVE |
Melrose Metal Finishing, INC | Oakland | CA | — | ● ACTIVE |
Melton Machine & Control CO | Washington | MO | 100–499 | ● ACTIVE |
Memcor INC | Huntington | IN | — | ● ACTIVE |
Mennie's Machine CO | Mark | IL | — | ● ACTIVE |
Menze Precision Machining, LLC | Winter Haven | FL | — | ● ACTIVE |
Mercator Medsystems, INC. | San Leandro | CA | — | ● ACTIVE |
Mercer International, INC. | Albany | NY | — | ● ACTIVE |
Mercury Aircraft INC | Hammondsport | NY | 100–499 | ● ACTIVE |
Mercury Machine Works LLC | Spring | TX | — | ● ACTIVE |
Merit Gage INC | Minneapolis | MN | — | ● ACTIVE |
| MIMeritor, INC. | Troy | MI | 500+ | ● ACTIVE |
Merrill Corporation | Clearfield | UT | — | ● ACTIVE |