| Baltimore Research & Education Foundation Inc. | Baltimore | MD | Subcontractor |
| Banzai Defense Group, LLC | Benbrook | TX | $0 |
| Barres Systems Engineering Inc. | Ogden | UT | Subcontractor |
| Barrick John Dayton | Poquoson | VA | Subcontractor |
| Battelle Memorial InstituteWellesley, MA · UEI C38HLCBMXG54 | Wellesley | MA | Subcontractor |
| Battelle Memorial InstituteArlington, VA · UEI FG8QB99NF8K3 | Arlington | VA | $0 |
| Battelle Memorial InstituteColumbus, OH · UEI JV6TBSUWW5N5 | Columbus | OH | Subcontractor |
| Battelle Memorial InstituteCharlottesville, VA · UEI QC9EXJPLGF94 | Charlottesville | VA | Subcontractor |
| Battelle Memorial InstituteBeavercreek, OH · UEI UZ94YTYVM7M5 | Beavercreek | OH | Subcontractor |
| Battenkill Technologies, Inc. | Manchester Center | VT | Subcontractor |
| Battery Innovation Center Institute, Inc. | Newberry | IN | Subcontractor |
| Bears LLC | Royal Oak | MI | Subcontractor |
| Bechtel Marine Propulsion Corporation | Reston | VA | Subcontractor |
| Bernard Eddie Nolan | Bellevue | WA | $0 |
| Beth-el Industries Ltd. | Zikhron-yaakov | | Subcontractor |
| Biomedical Research Foundation | Little Rock | AR | Subcontractor |
| Biomedical Research Institute Of New Mexico | Albuquerque | NM | Subcontractor |
| Biotillion LLC | Skillman | NJ | $0 |
| Bison Aerospace Inc. | Newcastle | WY | Subcontractor |
| Black Hills Center For American Indian Health | Rapid City | SD | Subcontractor |
| Black-i Robotics, Inc. | Tyngsboro | MA | Subcontractor |
| Black Lab Sports LLC | Erie | CO | Subcontractor |
| Black Pearl Aerospace LLC | Milford | NH | Subcontractor |
| Black River Systems Company, Inc.Beavercreek Township, OH · UEI JAB8KHMQFT65 | Beavercreek Township | OH | Subcontractor |
| Black River Systems Company, Inc.Lakeville, MN · UEI QFK4LTNU3MF9 | Lakeville | MN | $0 |
| Blacksky Global LLC | Seattle | WA | Subcontractor |
| Bluecom Systems & Consulting LLC | Albuquerque | NM | $0 |
| Bluehalo LLC | Arlington | VA | Subcontractor |
| Bluehalo, LLCColorado Springs, CO · UEI C9BKLQJDYJ33 | Colorado Springs | CO | Subcontractor |
| Bluehalo, LLCAlbuquerque, NM · UEI P544KJE8H4S7 | Albuquerque | NM | Subcontractor |
| Bluehalo, LLCAnnapolis JCT, MD · UEI ZZ8ZC1SQG7K4 | Annapolis JCT | MD | Subcontractor |
| Blue Marble Space | Clayton | DE | Subcontractor |
| Bmseed LLC | Tempe | AZ | $0 |
| Bonsai LLC | San Antonio | TX | Subcontractor |
| Boston Va Research Institute, Inc. | Boston | MA | Subcontractor |
| Bowerbags LLC | Arlington | VA | $0 |
| Boye Engineering, LLC | Clarksville | MD | Subcontractor |
| Brain Trauma Foundation, Inc. | Palo Alto | CA | Subcontractor |
| Bridgehill Corporation | Paramus | NJ | Subcontractor |
| Brightspec, Inc. | Charlottesville | VA | $0 |
| Brio Solns LLC | Buckeye | AZ | Subcontractor |
| Broome Aerospace, LLC | Madison | AL | Subcontractor |
| Brunel University London | Uxbridge | | $0 |
| B'sys GMBH | Witterswil | | $0 |
| C-3 Comm Systems, LLC | Arlington | VA | Subcontractor |
| Cade Solutions, LLC | Fairfax | VA | Subcontractor |
| Cameron R Bass Consulting LLC | Durham | NC | $0 |
| Canon Medical Research USA, Inc. | Vernon Hills | IL | $0 |
| Capstan Aerospace, LLC | West Lafayette | IN | $0 |
| Carmenta Inc. | Arlington | VA | Subcontractor |
| Cascodium LLC | Andover | MA | Subcontractor |
| Case Enterprise Solutions LLC | Colorado Springs | CO | Subcontractor |
| Cathan LLC | Charlottesville | VA | Subcontractor |
| Catherine Lu | Los Altos | CA | Subcontractor |
| Cell Matrix Corporation | Blacksburg | VA | $0 |
| Cell Preservation Services Inc. | Owego | NY | $0 |
| Cenergy A & D LLC | Anaheim | CA | Subcontractor |
| Center For Veterans Research & Education | Minneapolis | MN | Subcontractor |
| Centre Europeen De Recherche En Biologie Et En Medecine | Illkirch-graffenstaden | | $0 |
| Centre For Research In Infectious Diseases | Yaounde | | Subcontractor |
| Centre National De La Recherche Scientifique CNRS Moy1300 Occitanie Est | Montpellier | | $0 |
| Centro De Investigacion Cientifica Y De Educacion Superior De Ensenada, Baja California | Ensenada | | $0 |
| Centro Internacional De Mejoramiento De Maiz Y Trigo Internacional | Texcoco | | $0 |
| Ceramics Composites And Coatings Incorporated | Lancaster | PA | $0 |
| Ceske Vysoke Uceni Technicke V Praze | Prague | | Subcontractor |
| C-fer Technologies (1999) Inc. | Edmonton | AB | $0 |
| Charles County Chamber Of Commerce Military Alliance Council, Inc. | La Plata | MD | $0 |
| Charles River Laboratories Ashland, LLC | Ashland | OH | Subcontractor |
| Charles River Laboratories Cleveland, Inc. | Cleveland | OH | Subcontractor |
| Charles Stark Draper Laboratory, Inc. | Saint Petersburg | FL | Subcontractor |
| Charles Stark Draper Laboratory, Inc. The | Huntsville | AL | Subcontractor |
| Chemled Technologies, LLC | Orange | CT | $0 |
| Chemveda Life Sciences Inc. | San Diego | CA | $0 |
| Chens | Shawnee | OK | $0 |
| Cherokee Federal Solutions, L.L.C. | Tulsa | OK | Subcontractor |
| Child Health Research Foundation | Dhaka | | $0 |
| Child Injury Prevention Alliance | Columbus | OH | $0 |
| Christopher Tyson Fisk | Coarsegold | CA | $0 |
| Cincinnati Education & Research For Veterans Foundation, Inc. DBA Cerv | Cincinnati | OH | Subcontractor |
| Cleveland Va Medical Research & Education Foundation, The | Cleveland | OH | Subcontractor |
| Cliburn And Associates, LLC | Springfield | IL | $0 |
| Climate Affairs, LLC | Boulder | CO | $0 |
| Clinical Directors Network, Inc. | New York | NY | Subcontractor |
| Clinical Trials Of Texas, LLC | San Antonio | TX | Subcontractor |
| Coda Labs LLC | Oxford | OH | $0 |
| Coflow Jet, LLC | Cutler Bay | FL | Subcontractor |
| Cogent Consulting LLC | Wyoming | MI | Subcontractor |
| Cognatus LLC | West Chester | PA | Subcontractor |
| Cognitek Management Systems Inc. | Glenview | IL | $0 |
| Coherent Research Group, LLC | Key West | FL | Subcontractor |
| Collaboration Link LLC | Shreveport | LA | Subcontractor |
| Collaborative For Emergency Care In Africa | Constantia | | Subcontractor |
| Combined Technology Solutions, LLC | Ridgely | MD | $0 |
| Comet Technology Corp. | Ann Arbor | MI | $0 |
| Commercial Fisheries Research Foundation | Kingston | RI | $0 |
| Commonwealth Center For Advanced Manufacturing | Disputanta | VA | Subcontractor |
| Compact Membrane Systems Inc. | New Castle | DE | $0 |
| Concentris Systems LLC | Washington | DC | $0 |
| Conceptual Analytics LLC | Glenn Dale | MD | Subcontractor |
| Concurrent Technologies Corp. | Arlington | VA | Subcontractor |
