Metrotech CORP | Santa Clara | CA | — | ● ACTIVE |
| MAMettler-toledo Autochem, INC. | Columbia | MD | 100–499 | ● ACTIVE |
| MRMeyercord Revenue INC | Carol Stream | IL | 20–99 | ● ACTIVE |
Michigan Instruments, LLC | Grand Rapids | MI | — | ● ACTIVE |
Micro-ant, LLC | Jacksonville | FL | — | ● ACTIVE |
Micro Audiometrics Corporation | Daytona Beach | FL | — | ● ACTIVE |
Micro Lambda Wireless, INC | Fremont | CA | — | ● ACTIVE |
Micro-mode Products, INC. | El Cajon | CA | — | ● ACTIVE |
| MPMicron Products INC | Fitchburg | MA | 20–99 | ● ACTIVE |
| MFMicroprobes for Life Science INC | Gaithersburg | MD | — | ● ACTIVE |
| MQMicro Q, INC | San Diego | CA | — | ● ACTIVE |
Microsembly LLC | Merrimack | NH | — | ● ACTIVE |
| MLMicrosense, LLC | Lowell | MA | — | ● ACTIVE |
Micross Hi Rel Power Solutions, INC. | San Jose | CA | — | ● ACTIVE |
| MIMicrotech INC | Cheshire | CT | — | ● ACTIVE |
| MSMicrotech Systems INC | Santa Cruz | CA | — | ● ACTIVE |
| MIMicrotrac, INC. | York | PA | 20–99 | ● ACTIVE |
Microwave Applications Group | Santa Maria | CA | — | ● ACTIVE |
Microwave Components & Systems, INC. | Westborough | MA | — | ● ACTIVE |
Microwave Filter CO INC | East Syracuse | NY | 20–99 | ● ACTIVE |
Microwave Techniques LLC | Gorham | ME | 100–499 | ● ACTIVE |
Microwave Technology INC | Fremont | CA | — | ● ACTIVE |
Microxact, INC | Radford | VA | — | ● ACTIVE |
Mid-america Taping & Reeling INC | Glendale Heights | IL | — | ● ACTIVE |
Midcon Cables Co., INC. | Joplin | MO | — | ● ACTIVE |
| MTMid-state Tank CO INC | Sullivan | IL | — | ● ACTIVE |
Midwest Magnetic Components, INC | Alcester | SD | 20–99 | ● ACTIVE |
| MSMikro Systems, INC | Charlottesville | VA | 100–499 | ● ACTIVE |
Milegon, LLC | Canby | OR | 100–499 | ● ACTIVE |
Millennium Dental Technologies, INC. | Cerritos | CA | — | ● ACTIVE |
Miller Edge INC | West Grove | PA | 20–99 | ● ACTIVE |
Milliflect Company LLC | Newark | CA | — | ● ACTIVE |
Miltenyi Biotec, INC. | Auburn | CA | — | ● ACTIVE |
Minco Products INC | Minneapolis | MN | — | ● ACTIVE |
Minearc Systems America LLC | Lancaster | TX | 20–99 | ● ACTIVE |
Min-e-con LLC | Irvine | CA | — | ● ACTIVE |
| MSMinerva Surgical, INC. | Santa Clara | CA | — | ● ACTIVE |
Mini-systems INC | Attleboro | MA | — | ● ACTIVE |
Minnysonoda CORP | Monroe | WA | 20–99 | ● ACTIVE |
Minxray INC | Northbrook | IL | — | ● ACTIVE |
| MIMirac, INC | Lynchburg | OH | 100–499 | ● ACTIVE |
| MTMirion Technologies (canberra), INC. | Meriden | CT | 100–499 | ● ACTIVE |
| MSMission Systems Davenport INC. | Davenport | IA | — | ● ACTIVE |
M-l Utilities LLC | Spring Hill | TN | — | ● ACTIVE |
Mobile Mark INC | Itasca | IL | 100–499 | ● ACTIVE |
Mobilion Systems INC | Chadds Ford | PA | 20–99 | ● ACTIVE |
Mobotrex, LLC | Davenport | IA | 20–99 | ● ACTIVE |
Modular Bionics INC. | Berkeley | CA | — | ● ACTIVE |
| MCModular Components National, INC | Forest Hill | MD | — | ● ACTIVE |
Modular Sound Systems, INC. | Algonquin | IL | — | ● ACTIVE |
Modulated Imaging INC | Costa Mesa | CA | — | ● ACTIVE |
Modutek CORP. | San Jose | CA | — | ● ACTIVE |
Molecular Devices LLC | San Jose | CA | — | ● ACTIVE |
Monarch International INC. | Amherst | NH | — | ● ACTIVE |
Monitored Therapeutics INC | Dublin | OH | — | ● ACTIVE |
Monroe Integro, LLC | New Britain | CT | 20–99 | ● ACTIVE |
Montana Fiberglass INC | Lewistown | MT | — | ● ACTIVE |
Montana Instruments Corporation | Bozeman | MT | 20–99 | ● ACTIVE |
Morehouse Instrument Company | York | PA | 20–99 | ● ACTIVE |
Morlan & Associates INC | Hilliard | OH | 20–99 | ● ACTIVE |
| MAMotor Appliance Corporation | Washington | MO | — | ● ACTIVE |
Motorola Solutions INC | Elgin | IL | — | ● ACTIVE |
Mountain Vista System Solutions LLC | Tijeras | NM | — | ● ACTIVE |
Moxtek, INC. | Orem | UT | — | ● ACTIVE |
Mpc Design Technologies, INC. | Albuquerque | NM | — | ● ACTIVE |
M-pulse Microwave, INC | San Jose | CA | — | ● ACTIVE |
Mriaudio, INC. | Carlsbad | CA | — | ● ACTIVE |
Mti Electronics INC | Menomonee Falls | WI | — | ● ACTIVE |
Multilayer Prototypes Incorporated | Newbury Park | CA | — | ● ACTIVE |
| MIMultilink INC. | Elyria | OH | 100–499 | ● ACTIVE |
Multistack Bac LLC | Willoughby | OH | 100–499 | ● ACTIVE |
Murrietta Circuits | Anaheim | CA | — | ● ACTIVE |
Mycronic INC | Tewksbury | MA | 100–499 | ● ACTIVE |
Myolyn, INC. | Gainesville | FL | — | ● ACTIVE |
| NPNakoma Products, LLC | Bridgeview | IL | — | ● ACTIVE |
Nanosilicon, INC. | San Jose | CA | — | ● ACTIVE |
Naprotek, LLC | San Jose | CA | — | ● ACTIVE |
Nasiff Associates, INC. | Central Square | NY | — | ● ACTIVE |
| NINaso Industries Corporation | Ventura | CA | — | ● ACTIVE |
Natel Engineering Company, LLC | Carlsbad | CA | — | ● ACTIVE |
National Instruments CORP | Austin | TX | — | ● ACTIVE |
| NINaturalpoint INC. | Corvallis | OR | 100–499 | ● ACTIVE |
Nautel Maine INC | Bangor | ME | 20–99 | ● ACTIVE |
Navitas Systems, LLC | Ann Arbor | MI | 20–99 | ● ACTIVE |
Naztec International Group LLC | West Palm Beach | FL | — | ● ACTIVE |
Ncab Group USA INC | Hampstead | NH | 20–99 | ● ACTIVE |
Nemo Manufacturing INC | La Grange | MO | — | ● ACTIVE |
Neolight LLC | Scottsdale | AZ | — | ● ACTIVE |
Netcom, INC | Wheeling | IL | — | ● ACTIVE |
Netech Corporation | Farmingdale | NY | — | ● ACTIVE |
Netvia Group LLC | Irving | TX | — | ● ACTIVE |
| NTNetwork Technologies INC | Aurora | OH | — | ● ACTIVE |
Neurasignal, INC. | Los Angeles | CA | — | ● ACTIVE |
Neuraxis, INC | Carmel | IN | — | ● ACTIVE |
Neuro20 Technologies CORP. | Oldsmar | FL | — | ● ACTIVE |
Neurolumen LLC | Oklahoma City | OK | — | ● ACTIVE |
Neuronetics, INC. | Malvern | PA | — | ● ACTIVE |
Neuropace INC | Mountain View | CA | — | ● ACTIVE |
Newman Medical, LLC | Arvada | CO | — | ● ACTIVE |
New Objective INC | Littleton | MA | — | ● ACTIVE |