| Light Coders LLC | Dayton | OH | Subcontractor |
| Lightera Laboratories, LLC | Somerset | NJ | Subcontractor |
| Lightstorm Research, LLC | Tipp City | OH | Subcontractor |
| Lightup, Inc. | San Mateo | CA | $0 |
| Lignamed, LLC | Blue Bell | PA | $0 |
| Lingle Engineering, Inc. | Thousand Oaks | CA | Subcontractor |
| Linquest CorporationBeavercreek, OH · UEI C12XZB4FFQG8 | Beavercreek | OH | Subcontractor |
| Linquest CorporationLos Angeles, CA · UEI P9TBZENWQMJ3 | Los Angeles | CA | Subcontractor |
| Lismikro Inc. | East Setauket | NY | Subcontractor |
| LJJW Aquasolution LLC | Dupont | WA | $0 |
| LK4 Technology Corporation | Champaign | IL | $0 |
| Lockheed Martin CorporationManassas, VA · UEI N2XLJYNPC221 | Manassas | VA | $0 |
| Lockheed Martin CorporationGaithersburg, MD · UEI NTWCWULE48A8 | Gaithersburg | MD | Subcontractor |
| Logistic Gliders Inc. | Dixon | CA | $0 |
| Logyx LLC | Gilford | NH | Subcontractor |
| Lohocla Research Corp. | Galena | IL | $0 |
| Loki, Incorporated | Norwood | MO | $0 |
| Louisana Veterans Research And Educational Corporation | New Orleans | LA | $0 |
| Louisiana Tech University | Ruston | LA | Subcontractor |
| Lowell Observatory | Flagstaff | AZ | Subcontractor |
| Ludwig Computing Inc. | Mill Valley | CA | Subcontractor |
| Lumarray, Inc. | Somerville | MA | $0 |
| Lupine Materials And Technology, Inc. | Boulder | CO | $0 |
| Lyn Aerospace, LLC | Melbourne | FL | Subcontractor |
| Madelyn Crist | Cary | NC | $0 |
| Mae Development LLC | Churchville | MD | Subcontractor |
| Maine Marine Composites LLC | Portland | ME | Subcontractor |
| Makerere University Walter Reed Program Limited | Kampala | | Subcontractor |
| Managed Health Connections, Inc. | Austin | TX | $0 |
| Manufacturing Laboratories Inc. | Saint Petersburg | FL | Subcontractor |
| Margin Research LLC | New York | NY | Subcontractor |
| Maria A Curtin | Chelsea | MA | $0 |
| Marine Information Resources Corp. | Queenstown | MD | $0 |
| Mark O'neill LLC | Ft. Worth | TX | $0 |
| Maverick Material Innovations LLC | Mars | PA | Subcontractor |
| Maxalton, LLC | Seattle | WA | Subcontractor |
| Mbclark LLC | Springfield | OH | Subcontractor |
| Mca Solutions LLC | Springfield | VA | Subcontractor |
| Mcqueen Solutions, Inc. | Stafford | VA | Subcontractor |
| Mctech Solutions LLC | Goose Creek | SC | Subcontractor |
| Md Shihab Uddin | Arlington | TX | $0 |
| Mechanical Systems Design, Inc. | Bennington | VT | $0 |
| Menssana Research Inc. | Fort Lee | NJ | $0 |
| Metro International Biotech, LLC | Worcester | MA | $0 |
| Meyer Julia E | Chappaqua | NY | $0 |
| Miami Valley Aerospace LLC | Springfield | OH | Subcontractor |
| Micro Aerospace Solutions Inc. | Melbourne | FL | $0 |
| Microbio Engineering Inc. | San Luis Obispo | CA | Subcontractor |
| Micromechanics & Composites LLC | Cincinnati | OH | $0 |
| Micro-tracers Inc. | San Francisco | CA | $0 |
| Microtransponder Inc. | Austin | TX | Subcontractor |
| Midwest Veterans' Biomedical Research Foundation | Kansas City | MO | Subcontractor |
| Mimocloud Inc. | Potomac | MD | $0 |
| Mindware Technologies Ltd. | Westerville | OH | $0 |
| Minerva Defense, Inc. | Madison | AL | Subcontractor |
| Mine Survival Inc. | Panama City | FL | Subcontractor |
| Mission Intelligence Group LLC | Centreville | VA | Subcontractor |
| MLVX Technologies Inc. | Vancouver | BC | Subcontractor |
| Modendo Inc. | Boulder | CO | Subcontractor |
| Modern Technology Solutions Inc.Las Vegas, NV · UEI H9SMY9ZK2ZM7 | Las Vegas | NV | Subcontractor |
| Modern Technology Solutions Inc.Huntsville, AL · UEI UWBNX3HHJG15 | Huntsville | AL | Subcontractor |
| Modern Technology Solutions, Inc. | Beavercreek | OH | Subcontractor |
| Moffett Technologies Inc. | Mountain View | CA | Subcontractor |
| Monopole Research | Thousand Oaks | CA | $0 |
| Moonshot Research LLC | Mahomet | IL | Subcontractor |
| Moran Innovation LLC | Kent | OH | Subcontractor |
| Morningbird Media Corporation | Victoria | TX | $0 |
| Morphorm LLC | Albuquerque | NM | Subcontractor |
| Moshman Research LLC | Newberg | OR | Subcontractor |
| Mouse Genotype, Inc. | Escondido | CA | $0 |
| Movellus Circuits, Inc. | Ann Arbor | MI | Subcontractor |
| MTC S.a. | Krakow | | Subcontractor |
| Murdoch Children's Research Institute | Parkville | | $0 |
| Nall Software Solutions Limited Liability Company | Manalapan | NJ | Subcontractor |
| Nascent Resources Corporation | Johnstown | PA | Subcontractor |
| National Council For Air And Stream Improvement, Inc. | Cary | NC | $0 |
| National Council For Science And The Environment, The | Washington | DC | $0 |
| National Grape Research Alliance, Inc. | Sacramento | CA | $0 |
| National Marine Fisheries Service/swfsc | La Jolla | CA | $0 |
| National Observatory Of Athens | Athens | | $0 |
| National Science Foundation | Alexandria | VA | $0 |
| Nederlandse Organisatie Voor Toegepast-natuurwetenschappelijk Onderzoek Tno | S-gravenhage | | Subcontractor |
| Neerim Corporation | Oakland | CA | Subcontractor |
| Neff Aeronautics LLC | Sandy | UT | $0 |
| Nelson Gordon & Associates | Melbourne | FL | $0 |
| Nerac, Inc. | Tolland | CT | $0 |
| Neuralert Technologies Inc. | Philadelphia | PA | Subcontractor |
| Neurogen Technologies Inc. | Malibu | CA | Subcontractor |
| Neurogen Technologies LLC | Malibu | CA | Subcontractor |
| Neuromentix, LLC | Newtown | CT | $0 |
| New Health Sciences, Inc. | Lexington | MA | Subcontractor |
| New Horizons Diagnostics Corporation | Halethorpe | MD | Subcontractor |
| Newhouse Technology LLC | Lincoln | NE | $0 |
| New York State Technology Enterprise Corp. | Rome | NY | Subcontractor |
| Next Level Analytics, LLC | Dayton | OH | Subcontractor |
| Nicalmas LLC | Bellbrook | OH | Subcontractor |
| Nightshade Industries Corporation | Los Gatos | CA | Subcontractor |
| Nils Sandell | Concord | MA | Subcontractor |
| Nk Labs, LLC | Cambridge | MA | Subcontractor |
| Nlogic Inc. | Huntsville | AL | Subcontractor |
