| KDKellstrom Defense Aerospace INC | Miramar | FL | — | ◇ UNVERIFIED |
| KAKelly Aviation Center | San Antonio | TX | — | ◇ UNVERIFIED |
| KAKelly Aviation Center | San Antonio | TX | — | ◇ UNVERIFIED |
| KAKelly Aviation Center Bldg 647 2 | San Antonio | TX | — | ◇ UNVERIFIED |
| KVKemper Valve & Fittings CORP | Island Lake | IL | — | ◇ UNVERIFIED |
| KIKemp Industries INC | West Milford | NJ | — | ◇ UNVERIFIED |
| KMKerotest Manufacturing CORP. | Pittsburgh | PA | — | ◇ UNVERIFIED |
| KEKeystone Engineering Company | Ontario | CA | — | ◇ UNVERIFIED |
| KGKgp Group, INC. Dba Speqtrum Aerospace | Fort Worth | TX | — | ◇ UNVERIFIED |
| KKirby | Palm Bay | FL | — | ◇ UNVERIFIED |
| KAKirkwood Aviation | Peyton | CO | — | ◇ UNVERIFIED |
| KHKitty Hawk Air Cargo | Fort Worth | TX | — | ◇ UNVERIFIED |
| KUKratos Unmanned Aerial Systems INC | Mcclellan | CA | — | ◇ UNVERIFIED |
| KTKT Tech, Inc. | Fullerton | CA | — | ◇ UNVERIFIED |
| KWKumeyaay Wind LLC | Boulevard | CA | — | ◇ UNVERIFIED |
| KMKwd Manufacturing | San Antonio | TX | — | ◇ UNVERIFIED |
 Lai International INC | Fridley | MN | — | ◇ UNVERIFIED |
| Lai International, INC. | Tempe | AZ | — | ◇ UNVERIFIED |
| LVLakeside Valve Station: City of San Diego | Lakeside | CA | — | ◇ UNVERIFIED |
| LALanic Aerospace, LLC | Rancho Cucamonga | CA | — | ◇ UNVERIFIED |
| LILapeer Industries Plt 5 | Lapeer | MI | — | ◇ UNVERIFIED |
| LHLasticks Holdings, Ltd. fka Precision Components Inc | Bellport | NY | — | ◇ UNVERIFIED |
| LVLa Valve Source INC | Milton | LA | — | ◇ UNVERIFIED |
| LPLCF Properties LLC | Scottsdale | AZ | — | ◇ UNVERIFIED |
| LILearjet INC | North Hills | CA | — | ◇ UNVERIFIED |
 Lee Aerospace - 34th St (stormwater) | Wichita | KS | — | ◇ UNVERIFIED |
| LMLeos Metal Polishing Works LLC | Lynwood | CA | — | ◇ UNVERIFIED |
| LJLes J Street Generating Station | Lincoln | NE | — | ◇ UNVERIFIED |
| LEL & E Tubing LLC | Lynnwood | WA | — | ◇ UNVERIFIED |
| LFLewis Flying Service INC | Williamstown | NJ | — | ◇ UNVERIFIED |
| LTLeya Technology LLC | Gardena | CA | — | ◇ UNVERIFIED |
| LALifeport Armor Technologies | Woodland | WA | — | ◇ UNVERIFIED |
| LILifeport Interiors | Woodland | WA | — | ◇ UNVERIFIED |
| LBLisa Building LLC | Auburn | WA | — | ◇ UNVERIFIED |
| LJL J Walch CO INC | Livermore | CA | — | ◇ UNVERIFIED |
| LALmi Aerospace Cottonwood Falls, Ks | Cottonwood Falls | KS | — | ◇ UNVERIFIED |
| LALmi Aerospace INC | Auburn | WA | — | ◇ UNVERIFIED |
| LALmi Aerospace, INC (stormwater) | Wichita | KS | — | ◇ UNVERIFIED |
| LWLm Wind Power | Grand Forks | ND | — | ◇ UNVERIFIED |
| LWLm Windpower Blades (usa) INC. | Little Rock | AR | — | ◇ UNVERIFIED |
| LMLockheed Martin Aeronautics CO. | Clarksburg | WV | — | ◇ UNVERIFIED |
| LMLockheed Martin Aeroparts INC | Johnstown | PA | — | ◇ UNVERIFIED |
| LMLockheed Martin Skunk Works | Helendale | CA | — | ◇ UNVERIFIED |
| LSLouisiana Safety Systems | Lafayette | LA | — | ◇ UNVERIFIED |
| LGLower Granite Dam and Locks Usace | Pomeroy | WA | — | ◇ UNVERIFIED |
| LSLuminescent Sys INC | Lebanon | NH | — | ◇ UNVERIFIED |
| MDM9 Dev LLC | Santa Clara | CA | — | ◇ UNVERIFIED |
| MVMac Valves INC | Wixom | MI | — | ◇ UNVERIFIED |
| MJMagna James LTD Dba Northstar Engineering | Rancho Cucamonga | CA | — | ◇ UNVERIFIED |
| MAMalibu Aerospace | Blaine | MN | — | ◇ UNVERIFIED |
| MHMars Hill Properties 50th LLC | Seattle | WA | — | ◇ UNVERIFIED |
| MAMartec Aviation | Hialeah | FL | — | ◇ UNVERIFIED |
| MHMaster Holding LLC | Shelby Township | MI | — | ◇ UNVERIFIED |
| MPMaster Power Transmission INC | Greenville | SC | — | ◇ UNVERIFIED |
 Matrix Composites INC | Rockledge | FL | — | ◇ UNVERIFIED |
| MLMc63, LLC | Sandwich | IL | — | ◇ UNVERIFIED |
| MPMccauley Propeller Systems, INC | Vandalia | OH | — | ◇ UNVERIFIED |
| MDMcdonnel Douglas Missle Systems | Titusville | FL | — | ◇ UNVERIFIED |
| MDMcdonnell Douglas Astronautics CO | Pueblo | CO | — | ◇ UNVERIFIED |
| MGMc Gill Corporation | El Monte | CA | — | ◇ UNVERIFIED |
| MEMcgraw Edison CO Service Div | Fairfield | NJ | — | ◇ UNVERIFIED |
| MVMckenzie Valve & Machining CO | Mckenzie | TN | — | ◇ UNVERIFIED |
| MLMcnary Lock and Dam | Umatilla | OR | — | ◇ UNVERIFIED |
| MAMd Airfoils Corporation | Twinsburg | OH | — | ◇ UNVERIFIED |
| MMM.D. Metals, Inc. | Bedford Park | IL | — | ◇ UNVERIFIED |
| MAMeggitt Aircraft Braking Systems CORP | Danville | KY | — | ◇ UNVERIFIED |
| MLMeggitt (erlanger) LLC | Erlanger | KY | — | ◇ UNVERIFIED |
| MFMem-co Fittings INC | Hampstead | NH | — | ◇ UNVERIFIED |
| MAMenasco Aerospace-texas | Euless | TX | — | ◇ UNVERIFIED |
| MPMercury Powerboats | Monticello | AR | — | ◇ UNVERIFIED |
| MCMerrill Corporation | Clearfield | UT | — | ◇ UNVERIFIED |
| MSMessier Service America INC | Sterling | VA | — | ◇ UNVERIFIED |
| MTMetalcraft Technolgies INC. | Cedar City | UT | — | ◇ UNVERIFIED |
| MSMetalflex Sales, Inc. | Saint Charles | MO | — | ◇ UNVERIFIED |
| MCMetem Corporation | Parsippany | NJ | — | ◇ UNVERIFIED |
| MDMfg Div | Tulsa | OK | — | ◇ UNVERIFIED |
| MCMgp Caliper Covers LLC | Santee | CA | — | ◇ UNVERIFIED |
| MCMichels Corporation | Rio Vista | CA | — | ◇ UNVERIFIED |
| MRMiddle River Aerostructure Systems | Middle River | MD | — | ◇ UNVERIFIED |
| MWMidway Welding, Inc. | Cortland | NE | — | ◇ UNVERIFIED |
| MAMidwest Aircraft Components | Wellsville | MO | — | ◇ UNVERIFIED |
| MFMidwest Flying Service INC. | Leavenworth | KS | — | ◇ UNVERIFIED |
| MVMikron Valve and Manufacturer, INC. | Erie | PA | — | ◇ UNVERIFIED |
| MCMill Creek Dam Usacoe | Walla Walla | WA | — | ◇ UNVERIFIED |
 Millennium Concepts INC | Wichita | KS | — | ◇ UNVERIFIED |
 Mint Turbines LLC | Stroud | OK | — | ◇ UNVERIFIED |
| MHMitsubishi Hatachi Power Systems Americas INC | Orlando | FL | — | ◇ UNVERIFIED |
| MAML Aircraft Services, Inc. | Miami | FL | — | ◇ UNVERIFIED |
| MCMm Composite INC | Mount Pleasant | IA | — | ◇ UNVERIFIED |
| MAMoeller Aerospace Technologies INC | Harbor Springs | MI | — | ◇ UNVERIFIED |
| MMMoeller Manufacturing CO INC | Wixom | MI | — | ◇ UNVERIFIED |
| MMMoeller Mfg CO INC | Plymouth | MI | — | ◇ UNVERIFIED |
| MGMohave Generating Station | Laughlin | NV | — | ◇ UNVERIFIED |
| MFMolded Fiber Glass /south Dakota | Aberdeen | SD | — | ◇ UNVERIFIED |
| MEMorell Enterprise, Inc. | New Waterford | OH | — | ◇ UNVERIFIED |
| MMMorton Manufacturing | Lancaster | CA | — | ◇ UNVERIFIED |
| MCMts Cad-cam Technology | Springdale | AR | — | ◇ UNVERIFIED |
| MCMueller Company | Jasper | TN | — | ◇ UNVERIFIED |
| MGMueller Gas Prods - Waynesboro Div | Waynesboro | TN | — | ◇ UNVERIFIED |
| MMMundy Maintenance Services and Operations LLC | Durham | NC | — | ◇ UNVERIFIED |
