| | ANTARCTIC SCIENCE AND ENGINEERING SUPPORT - CONTRACT PRE-TRANSITION SERVICES | KBR SERVICES, LLC | $7,688 | NATIONAL SCIENCE FOUNDATION | NATIONAL SCIENCE FOUNDATION | — | 561210Facilities Support Services | M1HAOPERATION OF GOVERNMENT-OWNED CONTRACTOR-OPERATED (GOCO) R&D FACILITIES | Jun 2, 2026 | Jun 3, 2026 | Sep 2, 2026 |
| | OBLIGATION TO SATISFY THE GUARANTEED MINIMUM | KBR SERVICES, LLC | $5,000,000 | NATIONAL SCIENCE FOUNDATION | NATIONAL SCIENCE FOUNDATION | — | 561210Facilities Support Services | M1HAOPERATION OF GOVERNMENT-OWNED CONTRACTOR-OPERATED (GOCO) R&D FACILITIES | Jun 2, 2026 | Jun 2, 2026 | Jun 1, 2046 |
| | MANAGEMENT AND OPERATING CONTRACTOR FOR THE THOMAS JEFFERSON NATIONAL ACCELERATOR FACILITY (TJNAF). | SURATECH LLC | $115,699,125 | ENERGY, DEPARTMENT OF | ENERGY, DEPARTMENT OF | — | 541715Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) | M1HAOPERATION OF GOVERNMENT-OWNED CONTRACTOR-OPERATED (GOCO) R&D FACILITIES | Mar 31, 2026 | Mar 31, 2026 | May 31, 2031 |
| | AX SUPPORT SERVICES (BASE PERIOD) | MAINSAIL - OASIS JOINT VENTURE LLC | $1,242,882 | DEPT OF THE NAVY | DEPT OF THE NAVY | — | 483114Coastal and Great Lakes Passenger Transportation | M1HAOPERATION OF GOVERNMENT-OWNED CONTRACTOR-OPERATED (GOCO) R&D FACILITIES | Sep 30, 2025 | Oct 1, 2025 | Sep 30, 2026 |
| | PARADOX VALLEY UNIT (PVU) OPERATIONS, MAINTENANCE, AND REPAIRS (OM&R) SERVICES | VNS FEDERAL SERVICES LLC | $11,121,652 | BUREAU OF RECLAMATION | BUREAU OF RECLAMATION | — | 561210Facilities Support Services | M1HAOPERATION OF GOVERNMENT-OWNED CONTRACTOR-OPERATED (GOCO) R&D FACILITIES | Mar 18, 2025 | Mar 27, 2025 | Mar 26, 2030 |
| | TRANSITION TASK ORDER FOR FFRDC CONTRACT | ALLIANCE FOR ADVANCING BIOMEDICAL RESEARCH | $2,000,000 | NATIONAL INSTITUTES OF HEALTH | NATIONAL INSTITUTES OF HEALTH | — | 541715Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) | M1HAOPERATION OF GOVERNMENT-OWNED CONTRACTOR-OPERATED (GOCO) R&D FACILITIES | Mar 7, 2025 | Mar 7, 2025 | Aug 7, 2025 |
| | PVU OM&R 30-DAY BRIDGE CONTRACT | VNS FEDERAL SERVICES LLC | $259,803 | BUREAU OF RECLAMATION | BUREAU OF RECLAMATION | — | 561210Facilities Support Services | M1HAOPERATION OF GOVERNMENT-OWNED CONTRACTOR-OPERATED (GOCO) R&D FACILITIES | Jan 24, 2025 | Jan 26, 2025 | Mar 26, 2025 |
| | LABOR IN SUPPORT OF SONOBUOY QUALITY ASSURANCE PROGRAM. | MAINSAIL - OASIS JOINT VENTURE LLC | $1,155,463 | DEPT OF THE NAVY | DEPT OF THE NAVY | — | 483114Coastal and Great Lakes Passenger Transportation | M1HAOPERATION OF GOVERNMENT-OWNED CONTRACTOR-OPERATED (GOCO) R&D FACILITIES | Oct 4, 2024 | Oct 7, 2024 | Sep 30, 2025 |
| | MANAGEMENT AND OPERATING CONTRACT FOR THE FERMI NATIONAL ACCELERATOR LABORATORY (FNAL) | FERMI FORWARD DISCOVERY GROUP, LLC | $2,402,678,978 | ENERGY, DEPARTMENT OF | ENERGY, DEPARTMENT OF | — | 541715Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) | M1HAOPERATION OF GOVERNMENT-OWNED CONTRACTOR-OPERATED (GOCO) R&D FACILITIES | Sep 30, 2024 | Sep 30, 2024 | Dec 31, 2029 |
| | PROCUREMENT OF SPARE PARTS FOR KSC MRAPS | AEROBASE GROUP INC | $16,820 | NATIONAL AERONAUTICS AND SPACE ADMINISTRATION | NATIONAL AERONAUTICS AND SPACE ADMINISTRATION | — | 336390Other Motor Vehicle Parts Manufacturing | M1HAOPERATION OF GOVERNMENT-OWNED CONTRACTOR-OPERATED (GOCO) R&D FACILITIES | Dec 10, 2023 | Dec 10, 2023 | Feb 9, 2024 |
| | THIS EFFORT IS TO PROVIDE SERVICES TO OPERATE, MAINTAIN, AND REPAIR OF THE ACOUSTIC EXPLORER FOR THE SONOBUOY QUALITY ASSURANCE PROGRAM (SQAP). | MAINSAIL - OASIS JOINT VENTURE LLC | $1,054,595 | DEFENSE CONTRACT MANAGEMENT AGENCY (DCMA) | DEPT OF THE NAVY | — | 483114Coastal and Great Lakes Passenger Transportation | M1HAOPERATION OF GOVERNMENT-OWNED CONTRACTOR-OPERATED (GOCO) R&D FACILITIES | Sep 26, 2023 | Oct 1, 2023 | Mar 6, 2024 |
| | RV ACOUSTIC EXPLORER SERVICES | OASIS SYSTEMS, LLC | $455,310 | DEPT OF THE NAVY | DEPT OF THE NAVY | — | 483113Coastal and Great Lakes Freight Transportation | M1HAOPERATION OF GOVERNMENT-OWNED CONTRACTOR-OPERATED (GOCO) R&D FACILITIES | May 9, 2023 | May 11, 2023 | Sep 30, 2023 |
| | LH COMPONENTS - A1 OFFLOADING STATIONS | KENDALL HOLDINGS LTD | $224,170 | NATIONAL AERONAUTICS AND SPACE ADMINISTRATION | NATIONAL AERONAUTICS AND SPACE ADMINISTRATION | — | 332919Other Metal Valve and Pipe Fitting Manufacturing | M1HAOPERATION OF GOVERNMENT-OWNED CONTRACTOR-OPERATED (GOCO) R&D FACILITIES | Apr 28, 2023 | Apr 28, 2023 | May 31, 2024 |
| | LIQUID NITROGEN BALL VALVES, PFC 9010-V16T-1, PFC 9010-V16T-3 CLEANED TO 1000A | CONTROL CENTER, INCORPORATED | $34,680 | NATIONAL AERONAUTICS AND SPACE ADMINISTRATION | NATIONAL AERONAUTICS AND SPACE ADMINISTRATION | — | 334516Analytical Laboratory Instrument Manufacturing | M1HAOPERATION OF GOVERNMENT-OWNED CONTRACTOR-OPERATED (GOCO) R&D FACILITIES | Dec 8, 2022 | Dec 8, 2022 | Aug 31, 2023 |
| | R/V ACOUSTIC EXPLORER SERVICES | OASIS SYSTEMS, LLC | $968,799 | DEFENSE CONTRACT MANAGEMENT AGENCY (DCMA) | DEPT OF THE NAVY | — | 483113Coastal and Great Lakes Freight Transportation | M1HAOPERATION OF GOVERNMENT-OWNED CONTRACTOR-OPERATED (GOCO) R&D FACILITIES | May 9, 2022 | May 11, 2022 | May 10, 2023 |
| | EUS GREEN RUN PRESSURE TRANSMITTERS | FEDCORP SERVICES, INC. | $16,579 | NATIONAL AERONAUTICS AND SPACE ADMINISTRATION | NATIONAL AERONAUTICS AND SPACE ADMINISTRATION | — | 335313Switchgear and Switchboard Apparatus Manufacturing | M1HAOPERATION OF GOVERNMENT-OWNED CONTRACTOR-OPERATED (GOCO) R&D FACILITIES | Apr 25, 2022 | Apr 25, 2022 | Sep 6, 2022 |
| | OPERATIONS AND MANAGEMENT OF THE NASA BALLOON FACILITY | PERATON INC. | $329,912,726 | NATIONAL AERONAUTICS AND SPACE ADMINISTRATION | NATIONAL AERONAUTICS AND SPACE ADMINISTRATION | — | 541330Engineering Services | M1HAOPERATION OF GOVERNMENT-OWNED CONTRACTOR-OPERATED (GOCO) R&D FACILITIES | Apr 20, 2022 | Jun 1, 2022 | May 31, 2029 |
| | NASA BALLOONS OPERATIONS CONTRACT (NBOC) II PHASE-IN | PERATON INC. | $309,565 | NATIONAL AERONAUTICS AND SPACE ADMINISTRATION | NATIONAL AERONAUTICS AND SPACE ADMINISTRATION | — | 541330Engineering Services | M1HAOPERATION OF GOVERNMENT-OWNED CONTRACTOR-OPERATED (GOCO) R&D FACILITIES | Mar 23, 2022 | Apr 1, 2022 | May 31, 2022 |
| | MAINTENANCE AND OPERATION SERVICES IN SUPPORT OF THE ATLANTIC UNDERSEA TEST & EVALUATION CENTER (AUTEC). | AMENTUM SERVICES, INC. | $461,852,650 | DEPT OF THE NAVY | DEPT OF THE NAVY | — | 541330Engineering Services | M1HAOPERATION OF GOVERNMENT-OWNED CONTRACTOR-OPERATED (GOCO) R&D FACILITIES | Dec 6, 2021 | Dec 7, 2021 | Dec 6, 2031 |
| | WEDGEWOOD EXPANSION DESIGN SUITES M & N | LEIDOS BIOMEDICAL RESEARCH INC | $7,763,273 | NATIONAL INSTITUTES OF HEALTH | NATIONAL INSTITUTES OF HEALTH | — | 541715Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) | M1HAOPERATION OF GOVERNMENT-OWNED CONTRACTOR-OPERATED (GOCO) R&D FACILITIES | Sep 20, 2021 | Sep 20, 2021 | Aug 19, 2026 |
| | CDC FITNESS HEALTH CENTER MANAGEMENT | AQUILA FITNESS CONSULTING SYSTEMS LTD | $7,424,182 | CENTERS FOR DISEASE CONTROL AND PREVENTION | CENTERS FOR DISEASE CONTROL AND PREVENTION | — | 713940Fitness and Recreational Sports Centers | M1HAOPERATION OF GOVERNMENT-OWNED CONTRACTOR-OPERATED (GOCO) R&D FACILITIES | Aug 13, 2021 | Aug 21, 2021 | Jul 20, 2026 |
| | R/V ACOUSTIC EXPLORER SERVICES | OASIS SYSTEMS, LLC | $954,177 | DEFENSE CONTRACT MANAGEMENT AGENCY (DCMA) | DEPT OF THE NAVY | — | 483113Coastal and Great Lakes Freight Transportation | M1HAOPERATION OF GOVERNMENT-OWNED CONTRACTOR-OPERATED (GOCO) R&D FACILITIES | May 7, 2021 | May 11, 2021 | Jul 15, 2022 |
| | LABOR | DEXTERA CORP | $1,675,855 | DEPT OF THE NAVY | DEPT OF THE NAVY | — | 541611Administrative Management and General Management Consulting Services | M1HAOPERATION OF GOVERNMENT-OWNED CONTRACTOR-OPERATED (GOCO) R&D FACILITIES | Jan 21, 2021 | Feb 1, 2021 | Jul 29, 2022 |
| | NCI OPERATIONAL TASK ORDER | LEIDOS BIOMEDICAL RESEARCH INC | $1,782,770,324 | NATIONAL INSTITUTES OF HEALTH | NATIONAL INSTITUTES OF HEALTH | — | 541715Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) | M1HAOPERATION OF GOVERNMENT-OWNED CONTRACTOR-OPERATED (GOCO) R&D FACILITIES | Aug 31, 2020 | Aug 31, 2020 | Sep 27, 2024 |
| | OPERATION AND MAINTENANCE OF THE ATLANTIC UNDERSEA TEST AND EVALUATION CENTER (AUTEC). | AMENTUM SERVICES, INC. | $154,264,205 | DEFENSE CONTRACT MANAGEMENT AGENCY (DCMA) | DEPT OF THE NAVY | — | 541330Engineering Services | M1HAOPERATION OF GOVERNMENT-OWNED CONTRACTOR-OPERATED (GOCO) R&D FACILITIES | Aug 12, 2020 | Aug 13, 2020 | Aug 12, 2030 |