| Mark E Evans | Grafton | OH | Subcontractor |
| Markesman LLC | Newport News | VA | Subcontractor |
| Marketshare Associates, Inc. | Denver | CO | Subcontractor |
| Marsha Malinowski Fine Books & Manuscripts LLC | Chester | CT | $0 |
| Mars Realty Inc. | El Paso | TX | $0 |
| Maryann Lopez Locklin | Monroe | GA | $0 |
| Mason Livesay Scientific LLC | Oak Ridge | TN | Subcontractor |
| Matrix International, Inc. | Mclean | VA | $0 |
| Matthew R. Wells | Lancaster | NH | Subcontractor |
| Maya Walden | Wildwood | MO | $0 |
| Mayne, Renee V | Grass Valley | CA | $0 |
| Mccallum Turner Inc. | Evergreen | CO | Subcontractor |
| Mccarthy Arbitration & Mediation | Portland | OR | $0 |
| Mcconnell Valdes Consulting Inc. | San Juan | PR | Subcontractor |
| Mcdonald Water Policy Consulting, LLC | Franklin | TN | $0 |
| Mc Intyre Iain M | San Diego | CA | $0 |
| Mckee William L PHD | Denton | TX | $0 |
| Mclinica Pte. Ltd. | Singapore | | Subcontractor |
| Mcmahon, Jennifer | Laramie | WY | $0 |
| Mcnally & Associates Accident Reconstruction Services, LLC | Rochester | NH | $0 |
| Med Dent LLC | Chico | CA | $0 |
| Medgastech Inc. | Charlotte | NC | $0 |
| Mediators Beyond Borders International Unk | Washington | DC | Subcontractor |
| Medical Gas Testing & Certification, LLC | Johns Island | SC | $0 |
| Medic Mobile, Inc. | Sacramento | CA | $0 |
| Melissa M. Gonzalez | Lajas | PR | $0 |
| Metamorphosis Book Development LLC | Washington | DC | $0 |
| Met Office | Exeter | | $0 |
| Metro Analytics, LLC | Bountiful | UT | Subcontractor |
| Metropolitan Acoustics LLC | Philadelphia | PA | $0 |
| Metro Tech Corp. | San Lorenzo | PR | $0 |
| Michael Cohn Fine Art Consultants LLC | New York | NY | $0 |
| Michael S. Jordan | Glenview | IL | $0 |
| Michelle Eisenberg | San Diego | CA | $0 |
| Michigan Department Of Environment, Great Lakes, And Energy | Lansing | MI | $0 |
| Microacoustic Instruments Inc. | Plympton-wyoming | ON | $0 |
| Micro Lambda LLC | Millstone Township | NJ | Subcontractor |
| Midgard Scientific LLC | Douglasville | GA | Subcontractor |
| Mikayla Williams | Naugatuck | CT | $0 |
| Millennium Torque & Tensioning, Inc. | Canonsburg | PA | $0 |
| Mission First Consulting, LLC | Beverly | MA | Subcontractor |
| Mission Win Advisory, LLC | Washington | DC | Subcontractor |
| Mississippi Faith Based Coalition For Community Renewal Inc. | Jackson | MS | $0 |
| Mitra Library Conservation LLC | New York | NY | $0 |
| MMS Holdings Inc. | Canton | MI | Subcontractor |
| Modern Mobility Partners LLC | Atlanta | GA | Subcontractor |
| Montana Association Of Conservation Districts | Helena | MT | $0 |
| Montana Institute LLC | Bozeman | MT | $0 |
| Moonshot Cve Ltd. | London | | Subcontractor |
| Morgan Diving Corp. | Santa Maria | CA | $0 |
| Morning Star Consultants LLC | New Orleans | LA | Subcontractor |
| Moses Max Mindknit Research Center, Inc. | Columbia | MD | $0 |
| Mosley Rehabilitation Management LLC | Southfield | MI | $0 |
| Mowery Aimee | Aurora | IL | $0 |
| Mp Services LLC | Washington | DC | $0 |
| MRP Group, Inc. | Webster | NY | Subcontractor |
| Msi Dfat Services, LLC | Baltimore | MD | Subcontractor |
| My Secure Advantage, Inc. | Roseville | CA | Subcontractor |
| MZK Corp. | Leesburg | VA | Subcontractor |
| Nalley Consulting, LLC | Bargersville | IN | Subcontractor |
| Narwhal Met LLC | Salt Lake City | UT | Subcontractor |
| Nasman LLC | The Villages | FL | Subcontractor |
| Natalie Wieber | Madison | WI | $0 |
| National Association Of Pretrial Services Agencies | Lansing | MI | $0 |
| National Association Of Social Workers | Washington | DC | $0 |
| National Association Of State Mental Health Program Directors Research Institute, Inc. | Falls Church | VA | Subcontractor |
| National Board Of Boiler And Pressure Vessel Inspectors, The | Columbus | OH | $0 |
| National Center For Health Care Informatics | Butte | MT | $0 |
| National Corporate College Consultants, Inc. | Rumford | RI | Subcontractor |
| National Council For Community Development, Inc. | New York | NY | $0 |
| National Empowerment Center Inc. | Grafton | MA | $0 |
| National Federation Of Families For Children's Mental Health Inc. | Shepherdstown | WV | Subcontractor |
| National Matching Services Inc. | Toronto | ON | $0 |
| National Motor Freight Traffic Association, Inc. | Alexandria | VA | $0 |
| NBC Administrative Operations | Sierra Vista | AZ | $0 |
| Nemon Consulting LLC | Londonderry | NH | $0 |
| Neptune Concept LLC | Washington | DC | Subcontractor |
| Netwiz Systems, Inc. | Chantilly | VA | Subcontractor |
| Network Frontiers, LLC | Las Vegas | NV | $0 |
| New Buildings Institute, Inc. | Portland | OR | Subcontractor |
| Newgen North America, Inc. | Austin | TX | Subcontractor |
| New Jersey Innovation Institute Inc. | Newark | NJ | Subcontractor |
| New Zealand Institute For Public Health And Forensic Science Limited | Porirua | | Subcontractor |
| Nextgen Collaborations LLC | Locust Grove | VA | Subcontractor |
| Nextgen IT Services Inc. | Ashburn | VA | Subcontractor |
| Nextonic Solutions LLC | Hanover | MD | Subcontractor |
| Nicolas Dial | Portage | MI | $0 |
| Nighthawk Integrated Solutions LLC | Las Vegas | NV | Subcontractor |
| Nishikyushu Keiryo-kensa Center Co. Ltd. | Sasebo | | $0 |
| Nordic Nexus USA LLC | Las Vegas | NV | Subcontractor |
| Northeast Gas Association, Inc. | Westborough | MA | $0 |
| Northrop Grumman Systems Corp. | Madison | AL | $0 |
| Northrop Grumman Systems CorporationHanover, MD · UEI C778K6FBB7G9 | Hanover | MD | Subcontractor |
| Northrop Grumman Systems CorporationBellevue, NE · UEI YV6LBTHNVE83 | Bellevue | NE | Subcontractor |
| Northwest School Of Survival-international Training Programs, Inc. | Sandy | OR | $0 |
| Novus Capstone, LLC | Jackson | SC | Subcontractor |
| Ocean Alliance, Inc. | Gloucester | MA | $0 |
| Oc-is LLC | Idaho Falls | ID | Subcontractor |
| Oer Associates, LLC | Wilmette | IL | $0 |
| Office Of Justice Programs | Washington | DC | $0 |
