Biggest contracts

≈ computed · total contract value

FY2026 ended Sep 30 · data still posting · data as of 2026-11-01†

† DoD contract data posts to USAspending about 90 days after award.

The largest individual contracts and contract vehicles by total value over their life: base plus all options. A multi-year vehicle can dwarf any single fiscal year's obligations, so this ranks lifetime value rather than one year. Each row opens the award's page. Computed

  1. 1
    Contract HT940216C0001Humana Government Business Inc
    $51.3B
  2. 2
    Contract DEAC0494AL85000Lockheed Martin Corp
    $48.1B
  3. 3
    National Technology & Engineering Solutions of Sandia, LLC (Ntess)…National Technology & Engineering Solutions of Sandia, LLC
    $43.5B
  4. 4
    Management and Operation of the Oak Ridge National LaboratoryUT-Battelle LLC
    $43B
  5. 5
    Management and Operation of the Lawrence Livermore National…Lawrence Livermore National Security, LLC
    $42.2B
  6. 6
    Competition for Management and Operation of Los Alamos National…Triad National Security, LLC
    $36.3B
  7. 7
    SSN 802 and 803 Long Lead Time MaterialElectric Boat Corporation
    $35.7B
  8. 8
    M&o of Lanl BR of U of CAThe Regents of the University of California
    $35.3B
  9. 9
    Management and Operating Contract for Y-12 National Security…Consolidated Nuclear Security, LLC
    $35.2B
  10. 10
    LRIP Lot 12 Advance Acquisition ContractLockheed Martin Corporation
    $35.1B
  11. 11
    Contract N0001902C3002Lockheed Martin Corporation
    $34.2B
  12. 12
    KC-X Modernization ProgramThe Boeing Company
    $32B
  13. 13
    Columbia Class Design CompletionElectric Boat Corporation
    $31.5B
  14. 14
    Battelle Memorial Institute/Pacific Northwest Laboratory Operating…Battelle Memorial Institute
    $31.2B
  15. 15
    F-35A LRIP 15 USAF Aircraft Long Lead FundingLockheed Martin Corporation
    $30.2B
  16. 16
    Management and Operating Contract for the Savannah River SiteSavannah River Nuclear Solutions LLC
    $28B
  17. 17
    Contract DEAC5206NA25396
    $27.4B
  18. 18
    Management and Operations of the InlBattelle Energy Alliance, LLC
    $26.8B
  19. 19
    Long Lead Funding for F-35A, F-35B, and F-35C Aircraft for U.S…Lockheed Martin Corporation
    $24.6B
  20. 20
    Managed Care Support Services in Support of the Tricare Program
    $23.5B
  21. 21
    International Space StationThe Boeing Company
    $22.7B
  22. 22
    Management and Operation of Y-12 Plant and Other Programs
    $20.6B
  23. 23
    T3 Managed Care Support Contract for South RegionHumana Government Business Inc
    $20.5B
  24. 24
    SSN 792 Long Lead Time MaterialElectric Boat Corporation
    $20.4B
  25. 25
    Management and Operation of the Ernest Orlando Lawrence Berkeley…The Regents of the University of California
    $20.2B
  26. 26
    Provide Managed Care Support to the Department of Defense Tricare…Health Net Federal Services, LLC
    $19.4B
  27. 27
    Contract HQ000601C0001The Boeing Company
    $18.8B
  28. 28
    USN P-8A FRP II Long Lead MaterialThe Boeing Company
    $18.1B
  29. 29
    Management and Operation of the National Security CampusHoneywell Federal Manufacturing & Technologies, LLC
    $18.1B
  30. 30
    Operation of Lawrence Livermore LaboratoryThe Regents of the University of California
    $18B
  31. 31
    Contract DEAC2701RV14136Bechtel National, Inc.
    $17.9B
  32. 32
    Performance-Based Contract for Management and Operation of Argonne…Uchicago Argonne, LLC
    $17.7B
  33. 33
    Construction of Virginia Class Block III SubmarinesElectric Boat Corporation
    $16.2B
  34. 34
    Design, Development, Test & Evaluation of Project OrionLockheed Martin Corp
    $15.6B
  35. 35
    Management and Operation of the Naval Nuclear Laboratory and Naval…Fluor Marine Propulsion, LLC
    $15.1B
  36. 36
    Operation and Maintenance Linear AccelleratorThe Leland Stanford Junior University
    $15.1B
  37. 37
    Naval Nuclear LaboratoryFluor Marine Propulsion, LLC
    $15B
  38. 38
    Ground-Based Strategic Deterrent (GBSD) Engineering and…Northrop Grumman Systems Corp
    $14.4B
  39. 39
    CVN 80 Engineering Efforts and SteelHuntington Ingalls Inc
    $13.4B
  40. 40
    T3 Managed Care Support Contract for West Region
    $13.1B
  41. 41
    LOGCAP IV Services AfghanistanFluor Intercontinental, Inc
    $12.6B
  42. 42
    Award of 10M Treatment Courses of Oral Protease Inhibitor…Pfizer Inc
    $12.5B
  43. 43
    LRIP 11 AACLockheed Martin Corporation
    $12.3B
  44. 44
    Multi Service, 5 Yr, Multi-Yr Contract for H-60 HelicoptersSikorsky Aircraft Corporation
    $11.6B
  45. 45
    Award of Contract to Manage and Operate the National Renewable…Alliance for Energy Innovation, LLC
    $11.3B
  46. 46
    RSAF F-15 Fleet Modernization ProgramThe Boeing Company
    $11.2B
  47. 47
    COVID-19 Vaccine ProductionPfizer Inc
    $11.1B
  48. 48
    Contract FA861404C2004The Boeing Company
    $11.1B
  49. 49
    MV-22 Aircraft - FY08 (Lot 12)Bell Boeing Joint Project Office
    $11B
  50. 50
    Management and Operation of the Y-12 Facility
    $11B
  51. 51
    Management of the Hanford Site Tank Farms
    $10.6B
  52. 52
    LRIP 10 AACLockheed Martin Corporation
    $10.6B
  53. 53
    Provide Developmental Hardware and Test Articles, and Manufacture…The Boeing Company
    $10.5B
  54. 54
    Contract Award Is for the FY21/FY22/FY23 Base and Option Pricing…Lockheed Martin Corporation
    $10.5B
  55. 55
    HQ0147-17-C-0032 Undefinitized Contract Action (Uca) for THAAD…Lockheed Martin Corporation
    $10.4B
  56. 56
    Execute Phased Array Tracking Radar to Intercept on Target…Lockheed Martin Corporation
    $10.3B
  57. 57
    Detail Design and Construction of LPD 17 Class Ship (Lpd 22)Huntington Ingalls Incorporated
    $10B
  58. 58
    Contract F4261098C0001Northrop Grumman Systems Corp
    $10B
  59. 59
    Procurement of 54 Each Army UH-60M Black Hawk Helicopters; 18 Each…Sikorsky Aircraft Corporation
    $10B
  60. 60
    Eelv FY13 + Phase I BuyUnited Launch Services, LLC
    $9.5B
  61. 61
    Contract F0470195C0017
    $9.5B
  62. 62
    Contract N0002496F4060
    $9.4B
  63. 63
    Contract N0002403C2101Electric Boat Corporation
    $9.4B
  64. 64
    Tricare Managed Care Support Services Contract, 5TH Generation East…Humana Government Business Inc
    $9.4B
  65. 65
    Tricare Managed Care Support Services Contract, 5TH Generation West…Triwest Healthcare Alliance Corp
    $9.2B
  66. 66
    Contract F0470102C0002Lockheed Martin Corp
    $9B
  67. 67
    Contract N0001999C1226The Boeing Company
    $9B
  68. 68
    Follow on Task Order to 139 Is Now Task Order 159KBR Services, LLC
    $8.9B
  69. 69
    Follow-On Agile Sustainment to the Raptor (Faster)Lockheed Martin Corporation
    $8.8B
  70. 70
    M&o Contract for BNLBrookhaven Science Associates LLC
    $8.8B
  71. 71
    Lot 12 AAC Long Lead for Propulsion SystemsRTX Corporation
    $8.7B
  72. 72
    FY19 Engineering ServicesThe Aerospace Corporation
    $8.6B
  73. 73
    E-2D Advanced Hawkeye Aircraft (FRP-7)Northrop Grumman Systems Corporation
    $8.5B
  74. 74
    Construction of DDG 51 Ships FY23-27Huntington Ingalls Incorporated
    $8.3B
  75. 75
    Operation of Fermi National Accelerator Laboratory
    $8.3B
  76. 76
    100M SARS-COV-2 MRNA-1273 Vaccine DosesModernatx, Inc.
    $8.2B
  77. 77
    FY21-23 Global F-35 Air System SustainmentLockheed Martin Corporation
    $7.9B
  78. 78
    Mission Support and Test Services LLC (Msts) for the Management and…Mission Support & Test Services LLC
    $7.9B
  79. 79
    Contract N0001902C3003RTX Corporation
    $7.9B
  80. 80
    Contract 0139KBR Services, LLC
    $7.9B
  81. 81
    CY24 Avsc Supply SupportLockheed Martin Corporation
    $7.8B
  82. 82
    Contract N0001904C3146The Boeing Company
    $7.6B
  83. 83
    Contract FA861106C2899Lockheed Martin Corporation
    $7.6B
  84. 84
    Lot 15 FMS-1 F135 Ctol Prop SystemRTX Corporation
    $7.5B
  85. 85
    Next Generation Overhead Persistent Infrared Geosynchronous Earth…Lockheed Martin Corp
    $7.5B
  86. 86
    Advance Procurement to Support Lot 7 Full Rate Production Long Lead…The Boeing Company
    $7.5B
  87. 87
    LOGCAP IV Services in AfghanistanAmentum Services, Inc.
    $7.4B
  88. 88
    Procurement of V-22 Lot 17 Long Lead-Time ItemsBell Boeing Joint Project Office
    $7.3B
  89. 89
    Contract FA862506C6456Lockheed Martin Corp
    $7.3B
  90. 90
    F/A-18 AircraftThe Boeing Company
    $7.2B
  91. 91
    Long Range Anti-Ship Missile/Joint Air-To-Surface Standoff Missile…Lockheed Martin Corporation
    $7.2B
  92. 92
    F-35 Lightning II Joint Strike Fighter (JSF) Low Rate Initial…Lockheed Martin Corporation
    $7.2B
  93. 93
    Plateau Remediation Contract - Continue Environmental Remediation…
    $7.1B
  94. 94
    Contract DAAE0703CS023
    $7.1B
  95. 95
    F-15, FMS, F-15QA Air Vehicle DevelopmentThe Boeing Company
    $7B
  96. 96
    SSN 814 & SSN 815 Long Lead Time MaterialElectric Boat Corporation
    $7B
  97. 97
    CMV-22 Production Lot 22 Long Lead-Time ItemsBell Boeing Joint Project Office
    $7B
  98. 98
    LRIP 9 Aircraft AACLockheed Martin Corporation
    $7B
  99. 99
    FY18-FY22 DDG 51 Class Ship ConstructionHuntington Ingalls Incorporated
    $7B
  100. 100
    Ghsc IDIQ - Hiv/Aids toChemonics International, Inc.
    $6.7B
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FY2026 (data still posting) figures unless noted. This ranking is computed by us from USASpending source records and refreshed with each data load; it is a description of the money, never a judgment about any recipient.

Why the labels? The graph is only worth anything if the links are trusted. Facts taken straight from a federal filing are Source; figures we calculate are Computed; links we infer (corporate parents, districts, similar contractors, connections between records) are Inferred, worded carefully, never asserted as fact and never a claim that one thing caused another. Spot an error? Tell us.