| Steven Ray | Alexandria | VA | $0 |
| Stonehaven Technologies, Inc. | Huntsville | AL | Subcontractor |
| Stoney Forensic, Inc. | Chantilly | VA | $0 |
| Strategic Ohio Council For Higher Education | Beavercreek | OH | Subcontractor |
| Stratos Perception, LLC | Houston | TX | $0 |
| Structeryx, Inc. | Raleigh | NC | Subcontractor |
| Subsurface Insights LLC | Hanover | NH | Subcontractor |
| Sungkyunkwan University Research & Business Foundation | Suwon-si | | $0 |
| Survivability And Vulnerability Engineering Incorporated | Placentia | CA | Subcontractor |
| Swift Enterprises Ltd. | Westpoint | IN | $0 |
| Syntiron LLC | Saint Paul | MN | Subcontractor |
| System Acquisition Solutions LLC | Elkridge | MD | Subcontractor |
| System Analysis Test Associates | Valley Lee | MD | Subcontractor |
| Systems Analysis & Integration, Inc. | Orange | CA | Subcontractor |
| Systems And Technology Research LLC | Beavercreek | OH | Subcontractor |
| Systems Building Research Alliance | New York | NY | Subcontractor |
| Systems Research And Development Corporation | Palm Beach Gardens | FL | $0 |
| Systems Solutions Engineering Inc. | Killeen | TX | Subcontractor |
| Systems, Technology And Science, LLC | Dagsboro | DE | Subcontractor |
| Systems & Technology Research LLCCarlsbad, CA · UEI EANYZNEMA288 | Carlsbad | CA | Subcontractor |
| Systems & Technology Research LLCArlington, VA · UEI ZFVLV8W2NJB3 | Arlington | VA | Subcontractor |
| Tactical Haptics, Inc. | Fremont | CA | $0 |
| Tall Timbers Research, Inc. | Tallahassee | FL | Subcontractor |
| Talon Analytics, LLC | Tucson | AZ | Subcontractor |
| Tanist Technologies LLC | Falcon | CO | Subcontractor |
| Tatva Biosciences LLC | Mobile | AL | $0 |
| TCT Networks Corporation | Camden | NY | Subcontractor |
| Teal Consulting | Chevy Chase | MD | Subcontractor |
| Technion Research & Development Foundation Ltd. | Haifa | | $0 |
| Technology Service Corp.Bloomington, IN · UEI PUMRSPF7VYK8 | Bloomington | IN | Subcontractor |
| Technology Service Corp.King George, VA · UEI XGHNLQ5894R9 | King George | VA | Subcontractor |
| Technology Service CorporationSilver Spring, MD · UEI MKKGMW4E2QR5 | Silver Spring | MD | Subcontractor |
| Technology Service CorporationHuntsville, AL · UEI MKUKSXL3TPF6 | Huntsville | AL | Subcontractor |
| Technology Service CorporationTrumbull, CT · UEI RKH4T6P8G478 | Trumbull | CT | $0 |
| Tecolote Research, Inc.El Segundo, CA · UEI GEKSHLN4W927 | El Segundo | CA | $0 |
| Tecolote Research, Inc.King George, VA · UEI TJJHFNF3JV25 | King George | VA | Subcontractor |
| Tektonux LLC | Huntsville | AL | Subcontractor |
| Tentguild Engineering Co. | Boulder | CO | $0 |
| Teolis Consulting | Glenn Dale | MD | Subcontractor |
| Teraphysics Corporation | Cleveland | OH | $0 |
| Tera-x LLC | Verona | WI | $0 |
| Terveyden Ja Hyvinvoinnin Laitos | Helsinki | | $0 |
| Tex-tech Industries, Inc. | North Monmouth | ME | Subcontractor |
| Tharros Technical Consultants, Inc. | Aurora | CO | Subcontractor |
| The Aerospace CorporationArlington, VA · UEI C5MXCYUDNAW1 | Arlington | VA | Subcontractor |
| The Aerospace CorporationAlbuquerque, NM · UEI CXDYMXV6CJX7 | Albuquerque | NM | Subcontractor |
| The Alfred E. Mann Foundation For Scientific Research | Valencia | CA | $0 |
| The Aquaya Institute | Fairfax | CA | Subcontractor |
| The Aspen Global Change Institute, Inc. | Basalt | CO | Subcontractor |
| The Electrosynthesis Company, Inc. | Lancaster | NY | $0 |
| The Hektoen Institute For Medical Research | Chicago | IL | Subcontractor |
| The Inclen Trust International | New Delhi | | $0 |
| Theiss Research | La Jolla | CA | Subcontractor |
| The Methodist Hospital Research Institute | Houston | TX | Subcontractor |
| The Mount Desert Island Biological Laboratory | Bar Harbor | ME | $0 |
| Theranova LLC | San Francisco | CA | $0 |
| The Research Foundation For The State University Of New York | Oneonta | NY | $0 |
| The Tauri Group, Inc. | Alexandria | VA | Subcontractor |
| The University Of Lethbridge | Lethbridge | AB | $0 |
| The University Of Wollongong | Wollongong | | $0 |
| The Veterans Bio-medical Research Institute Inc. | East Orange | NJ | $0 |
| Thibault Vaillant De Guelis | Brion | | Subcontractor |
| Thomas R Bartholomew LLC | Downingtown | PA | $0 |
| Tialinx, Inc. | Irvine | CA | $0 |
| Timothy Jon Fraser Consulting LLC | Potomac | MD | Subcontractor |
| TLG Aerospace LLC | Seattle | WA | Subcontractor |
| Totally Benign Enterprises | Casper | WY | $0 |
| Trace-ability Inc. | Van Nuys | CA | $0 |
| Transtek International Group LLC | Oviedo | FL | $0 |
| Treadstone Technologies, Inc. | Monmouth Junction | NJ | $0 |
| Trenzyme GMBH | Konstanz | | $0 |
| Trevi Systems Inc. | Rohnert Park | CA | $0 |
| Triad Technology Inc. | Longmont | CO | Subcontractor |
| Triangula As | Oslo | | Subcontractor |
| Tridec Services Inc. | Raleigh | NC | $0 |
| Trident Integrative Solutions Inc. | Cibolo | TX | Subcontractor |
| Trillium Technologies, Inc. | Frisco | TX | Subcontractor |
| Trinity Bend Solutions Inc. | Austin | TX | Subcontractor |
| Trinity Scientific LLC | Idaho Falls | ID | $0 |
| Trinity Scientific Southern Division, LLC | Edgewood | NM | Subcontractor |
| Triumf Inc. | Vancouver | BC | $0 |
| True Focus Engineering LLC | Thornton | CO | Subcontractor |
| Tummah Technology Inc. | Huntsville | AL | Subcontractor |
| Tympanogen, Inc. | Richmond | VA | $0 |
| Uhv Technologies Inc. | Fort Wayne | IN | $0 |
| Ultrapure Air, LLC | Setauket | NY | $0 |
| Ultra Quantum Inc. | Madison | AL | $0 |
| Unconventional Concepts, Inc. | Lewis | NY | Subcontractor |
| United Sciences, LLC | Atlanta | GA | Subcontractor |
| Unit Systems Integration LLC | Olympia | WA | Subcontractor |
| Universal Display Corporation | Trenton | NJ | Subcontractor |
| Universitat Politecnica De Valencia | Valencia | | $0 |
| University Of Cape Town | Cape Town | | Subcontractor |
| University Of Leeds | Leeds | | Subcontractor |
| University Of Newcastle Upon Tyne | Newcastle Upon Tyne | | Subcontractor |
| Unmanned Aerospace LLC | San Diego | CA | Subcontractor |
| Unordinary Group LLC | Arlington | VA | Subcontractor |
| Ursus Medical Designs LLC | Pittsburgh | PA | $0 |
| Utah State University Space Dynamics LaboratoryAlbuquerque, NM · UEI EEJJJ3BP8YL1 | Albuquerque | NM | Subcontractor |
| Utah State University Space Dynamics LaboratoryStafford, VA · UEI KSGNPJJTLJJ9 | Stafford | VA | Subcontractor |
