≈$51.27B
Defense-wide
The Defense Health Agency (DHA) awarded a managed-care support contract for TRICARE — the health program for service members, retirees, and their families — to Humana Government Business. The value is about $51.3 billion ($51,269,205,263), the largest DoD contract this site has compiled. It shows that "military health care," not weapons, accounts for one of the biggest slices of defense spending.
- DHA ordered managed-care support for TRICARE (the military health program)
- Awarded to Humana Government Business
- Value ~$51.3B ($51,269,205,263; multi-year cumulative), definitive contract, Aug 2016–Dec 2025
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≈$35.14B
Navy
The U.S. Navy (the F-35 Joint Program Office) awarded an Advance Acquisition Contract for "Low-Rate Initial Production (LRIP) Lot 12" of the F-35 to Lockheed Martin. The value is about $35.1 billion ($35,135,514,910) — a framework to fund long-lead material early for that production lot.
- Advance acquisition contract for F-35 "Low-Rate Initial Production (LRIP) Lot 12"
- Awarded to Lockheed Martin; ordered by the U.S. Navy (managed by the Joint Program Office, JPO)
- Value ~$35.1B ($35,135,514,910; multi-year cumulative), definitive contract, Nov 2017–Mar 2031
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≈$34.92B
Navy
The U.S. Navy awarded a contract for "long lead time material" for Virginia-class nuclear attack submarines (SSN 802 and 803) to submarine builder Electric Boat (a General Dynamics company). The value is about $34.9 billion ($34,664,168,826) — among the largest DoD contracts this site has compiled.
- U.S. Navy ordered long-lead material for Virginia-class attack submarines (SSN 802, 803)
- Awarded to Electric Boat (a General Dynamics submarine builder)
- Value ~$34.9B ($34,664,168,826), definitive contract, Feb 2017–Jun 2036
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≈$34.17B
Defense-wide
Awarded October 26, 2001 under the Naval Air Systems Command (NAVAIR) contract series, this is the Joint Strike Fighter (JSF = F-35) development contract with Lockheed Martin. Covering R&D, airframes, and spares, it accumulated about $34.2 billion ($34,173,959,112) over 21 years of performance through 2022 — one of the largest single development contracts ever, and the starting point of the F-35 program.
- The development (SDD) contract for the Joint Strike Fighter (F-35) — the primary record is classified "JAST/JSF," "R&D / manufacturing development," "airframes and spares"
- Awarded to Lockheed Martin, starting October 26, 2001 — right after it beat Boeing's X-32
- Cumulative ~$34.2B ($34,173,959,112; multi-year), performance through December 2022 — about 21 years
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≈$31.97B
Air Force
The U.S. Air Force awarded a contract for its aerial-refueling modernization program "KC-X" (the current KC-46 Pegasus) to Boeing. The value is about $32.0 billion ($31,960,918,249) — a major program to replace the aging tanker fleet.
- U.S. Air Force ordered the "KC-X" aerial-refueling modernization program
- Awarded to Boeing (materialized as the KC-46 Pegasus)
- Value ~$32.0B ($31,960,918,249), definitive contract, Feb 2011–Jul 2027
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≈$31.19B
Navy
The U.S. Navy awarded a "design completion" contract for the next-generation ballistic-missile submarine (SSBN), the Columbia class, to Electric Boat (a General Dynamics company). The value is about $31.1 billion ($31,078,526,826).
- U.S. Navy ordered design completion of the next-gen Columbia-class SSBN
- Awarded to Electric Boat (a General Dynamics company)
- Value ~$31.1B ($31,078,526,826), definitive contract, Sep 2017–Dec 2031
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≈$30.14B
Navy
The DoD awarded about $30.1B ($30,140,182,630, cumulative over years) to Lockheed Martin for long-lead funding and related work on Lot 15 of Low-Rate Initial Production (LRIP) of the F-35A stealth fighter. Part of the U.S. military's flagship F-35 program.
- Funds long-lead material/funding for F-35A (Air Force variant) LRIP Lot 15
- Recipient: Lockheed Martin, the F-35 prime contractor
- Value ~$30.1B (multi-year cumulative), period November 2019–June 2028
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≈$24.55B
Defense-wide
The U.S. Navy (the F-35 Joint Program Office) awarded a long-lead-funding contract for F-35 fighters (A, B, and C variants) to Lockheed Martin — covering U.S. services, non-DoD partners, and Foreign Military Sales (FMS) customers. The value is about $24.5 billion ($24,499,786,640).
- Long-lead material for F-35 A/B/C (U.S. services + partners + FMS)
- Awarded to Lockheed Martin; awarding component is the U.S. Navy (the JPO)
- Value ~$24.5B ($24,499,786,640), definitive contract, Dec 2022–Sep 2030
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≈$23.48B
Defense-wide
The DoD's Defense Health Agency (DHA) awarded about $23.5B ($23,493,318,778, cumulative over years) for managed-care support of TRICARE, the health program for service members, families and retirees. Recipient: Health Net Federal Services. A large military "healthcare" contract — defense is not only weapons.
- The Defense Health Agency funded managed-care support for the military health program TRICARE
- Value ~$23.5B (multi-year cumulative), period of performance August 2016–May 2026
- Defense is not only weapons — military healthcare is a vast spending area
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≈$20.45B
Defense-wide
The Defense Health Agency (DHA) awarded the "South Region" managed-care support of TRICARE's third-generation (T3) contracts to Humana Government Business — about $20.5 billion ($20,451,127,097), performed 2011–2019. It is the predecessor in Humana's "southern lineage," later folded into the ~$51.3B current-generation East Region contract.
- The "South Region" managed-care support of TRICARE's third-generation (T3) contracts — stated in the primary record
- Awarded to Humana Government Business by the Defense Health Agency (DHA)
- Cumulative ~$20.5B ($20,451,127,097; multi-year), performed March 2011–March 2019
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≈$20.21B
Navy
A Navy (NAVSEA) contract with Electric Boat, the General Dynamics submarine builder. It began in 2012 as long-lead-time material for SSN-792 (Vermont, the first Block IV boat) and grew into Block IV construction, accumulating about $20.2 billion ($20,183,699,820) with performance through 2027 — a textbook example of the Navy's "block buy" approach to submarines.
- A Virginia-class attack submarine contract — began April 2012 as long-lead-time material for SSN-792 (Vermont, first Block IV boat), per the primary record
- Awarded by Naval Sea Systems Command (NAVSEA) to Electric Boat (General Dynamics)
- Cumulative ~$20.2B ($20,183,699,820; multi-year), performance through August 2027
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≈$19.41B
Defense-wide
For the North Region of "TRICARE," the DoD health plan for service members and families, a managed-care support contract was awarded to Health Net Federal Services. The value is about $19.4 billion ($19,414,789,943) — a reminder that defense spending extends well beyond weapons, into health care.
- Managed-care support contract for DoD TRICARE (North Region)
- Awarded to Health Net Federal Services; awarding component is the Defense Health Agency
- Value ~$19.4B ($19,414,789,943), definitive contract, May 2010–Aug 2025
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≈$18.76B
Defense-wide
The Ballistic Missile Defense Organization (BMDO — predecessor of today's Missile Defense Agency, MDA) awarded a ballistic-missile-defense contract to Boeing. The value is about $18.8 billion ($18,762,686,627). It is tied to the "Ground-based Midcourse Defense (GMD)" that intercepts long-range ballistic missiles aimed at the homeland — a core U.S. missile-defense investment.
- BMDO (predecessor of today's MDA) ordered ballistic missile defense from Boeing
- Value ~$18.8B ($18,762,686,627; multi-year cumulative), definitive contract, Dec 2000–Dec 2015
- Boeing is the lead contractor for homeland "Ground-based Midcourse Defense (GMD)"
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≈$18.11B
Defense-wide
The U.S. Navy awarded a contract for long-lead material toward production (FRP II) of the P-8A Poseidon (based on the Boeing 737), which performs anti-submarine and patrol missions, to Boeing. The value is about $18.1 billion ($18,129,749,822) — a major program replacing the aging P-3 patrol aircraft.
- U.S. Navy ordered long-lead material toward P-8A production (FRP II)
- Awarded to Boeing (the P-8A is a multi-mission maritime aircraft based on the Boeing 737)
- Value ~$18.1B ($18,129,749,822), definitive contract, Aug 2014–Nov 2027 (multi-year cumulative)
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≈$16.24B
Navy
The U.S. Navy awarded about $16.2B ($16,238,775,949, cumulative over years) for construction of Virginia-class "Block III" nuclear-powered attack submarines. Recipient: Electric Boat, a General Dynamics subsidiary. A contract for the Navy's frontline attack submarines.
- The Navy funded construction of Virginia-class "Block III" attack submarines
- Recipient: Electric Boat (a General Dynamics subsidiary), core submarine builder
- Value ~$16.2B (multi-year cumulative), period December 2008–August 2023
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≈$14.93B
Navy
The U.S. Navy awarded, as of 2026-09-03, about $14.9B ($14,911,941,112, cumulative over years) for the Naval Nuclear Laboratory, which underpins nuclear propulsion for ships. Recipient: Fluor Marine Propulsion. A research-operations contract supporting the heart of nuclear submarines and carriers.
- The Navy funded operation of the "Naval Nuclear Laboratory"
- A specialized institution for submarine/carrier nuclear-propulsion reactor technology
- Value as of 2026-09-03 ~$14.9B (multi-year cumulative), period July 2018–September 2028
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≈$13.72B
Air Force
The U.S. Air Force awarded a contract for engineering & manufacturing development (EMD) and early production & deployment of the next-generation land-based intercontinental ballistic missile (ICBM) program, the Ground Based Strategic Deterrent (GBSD), to Northrop Grumman. The value is about $13.7 billion ($13,720,293,923). GBSD was later named "Sentinel" and replaces the aging Minuteman III.
- Development & early production of the next-gen land-based ICBM "GBSD (later Sentinel)"
- Awarded to Northrop Grumman; awarding component is the U.S. Air Force
- Value ~$13.7B ($13,720,293,923), definitive contract, Sep 2020–Mar 2029
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≈$13.15B
Defense-wide
The Defense Health Agency (DHA) awarded the managed-care support contract for the "West Region" of military health program TRICARE to UnitedHealth Military & Veterans Services. The value is about $13.1 billion ($13,145,560,374) — an example of how TRICARE is contracted out to different private insurers by region.
- DHA ordered managed-care support for the TRICARE "West Region"
- Awarded to UnitedHealth Military & Veterans Services
- Value ~$13.1B ($13,145,560,374; multi-year cumulative), definitive contract, Mar 2012–Feb 2019
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≈$12.8B
Navy
The U.S. Navy awarded a contract for engineering efforts and steel for the Ford-class nuclear aircraft carrier CVN 80 (to be named the next "Enterprise") to carrier builder Huntington Ingalls. The value is about $12.8 billion ($12,779,497,659) — a large award for building a nuclear carrier, among the world's largest and most complex warships.
- U.S. Navy ordered engineering efforts and steel for the Ford-class nuclear carrier CVN 80
- Awarded to Huntington Ingalls (Newport News / a major carrier builder)
- Value ~$12.8B ($12,779,497,659), definitive contract, May 2016–Jun 2036 (multi-year cumulative)
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≈$12.57B
Army
The U.S. Army awarded an Afghanistan services contract under "LOGCAP IV," which outsources theater base operations, life support, and logistics to the private sector, to engineering major Fluor. The value is about $12.6 billion ($12,568,636,131) — a case where defense spending goes substantially to "services" rather than weapons.
- U.S. Army ordered an Afghanistan contract under "LOGCAP IV," outsourcing theater support to the private sector
- Recipient Fluor, ~$12.6B ($12,568,636,131), July 2009–September 2025 (multi-year cumulative)
- LOGCAP has contractors provide base operations, food, fuel, facilities, and logistics
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≈$12.55B
Army
An Army contracting component awarded about $12.5B ($12,549,999,848) to Pfizer for 10 million courses of the oral protease inhibitor PF-07321332 (nirmatrelvir, the active component of Paxlovid). An example of the defense procurement system used for pandemic-response drug purchasing.
- An Army contracting component procured 10M courses of an oral antiviral
- PF-07321332 = nirmatrelvir = the active component of Paxlovid
- Value ~$12.5B, period of performance November 2021–March 2023
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≈$12.27B
Defense-wide
The Lockheed Martin contract covering aircraft of the F-35's 11th low-rate initial production lot (LRIP 11). Cumulative value is about $12.3 billion ($12,269,145,508), performed from December 2015 through March 2031. F-35s are ordered in annual "lots," and this record shows the production stage — a companion piece to the development (SDD) contract.
- Aircraft contract for the F-35's 11th low-rate initial production lot — primary record classified "LRIP 11 AAC"
- Awarded to Lockheed Martin; cumulative ~$12.3B ($12,269,145,508; multi-year)
- Performance December 2015–March 2031: from long-lead material through post-delivery residuals
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≈$11.6B
Army
The U.S. Army awarded a five-year, multi-year contract for H-60 helicopters (Black Hawk and others) to Sikorsky, covering up to 916 aircraft for the Army, Navy, and Foreign Military Sales (FMS) — including Saudi Arabia, Taiwan, Thailand, and Australia. The value is about $11.6 billion ($11,602,480,135).
- Five-year, multi-year H-60 helicopter contract; up to 916 aircraft
- Awarded to Sikorsky; awarding component is the U.S. Army; also Navy and FMS
- FMS countries: Saudi National Guard, Taiwan, Thailand, Royal Australian Navy
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≈$11.2B
Air Force
The U.S. Air Force awarded a contract for the Royal Saudi Air Force (RSAF) F-15 fleet modernization program to Boeing. The value is about $11.2 billion ($11,204,226,413). It is an example of "Foreign Military Sales (FMS)," in which the U.S. brokers an ally's procurement; the cost is borne by the purchasing country (Saudi Arabia).
- Via the U.S. Air Force, Saudi (RSAF) F-15 modernization was ordered from Boeing
- Value ~$11.2B ($11,204,226,413; multi-year cumulative), definitive contract, Mar 2012–May 2023
- Foreign Military Sales (FMS) = the U.S. brokering an ally's procurement government-to-government
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≈$11.11B
Army
The Department of Defense (via Army contracting) awarded a contract for COVID-19 vaccine production to Pfizer. The value is about $11.1 billion ($11,110,134,066) — a case where the DoD's procurement capacity was used for the pandemic response, showing that defense is not only about weapons.
- The DoD (via Army contracting) ordered COVID-19 vaccine production
- Recipient Pfizer, ~$11.1B ($11,110,134,066), December 2020–June 2023 (multi-year cumulative)
- The DoD's procurement capacity (e.g., Army Contracting Command) was used for the pandemic response
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≈$11.09B
Defense-wide
A definitive contract administered by the Defense Contract Management Agency. Obligations total about $11,086.77 million, the largest among the Department of Defense contracts this site holds as of 2026-09-01 that have yet to be covered. The period runs from 2003-10-02 to 2017-10-31, or 14.1 years. Nothing is recorded in the description.
- Obligations of about $11,086.77 million make this the largest defense contract this site has yet to cover.
- The description carries nothing, so what was procured cannot be read from the record.
- Of the 207 Department of Defense contracts this site holds as of 2026-09-01, 15 have an empty description and another 15 carry an older fixed-width record.
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≈$11.04B
Defense-wide
The Department of Defense awarded a contract for the V-22 Osprey — a tiltrotor that takes off like a helicopter and flies like an airplane (MV-22, FY08 Lot 12) — to the Bell Boeing joint venture. The value is about $11.0 billion ($11,040,980,157). A large procurement of an aircraft with a unique flight capability.
- The DoD ordered V-22 Osprey tiltrotor aircraft (MV-22, FY08 Lot 12)
- Awarded to the Bell Boeing joint venture, ~$11.0B ($11,040,980,157), April 2007–August 2018 (multi-year cumulative)
- The V-22 takes off/lands vertically like a helicopter and flies fast and far like a fixed-wing aircraft
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≈$10.55B
Defense-wide
A contract to Lockheed Martin awarded through the Defense Contract Management Agency, obligating about $10.55 billion. The description field reads only "LRIP 10 AAC."
- Low-rate initial production is the stage of building small quantities while the design settles, matching process against test results.
- An advance acquisition contract secures long-lead material ahead of the main production contract.
- The description reads only "LRIP 10 AAC," and what is being built sits on the side of the main contract.
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≈$10.48B
Army
The U.S. Army awarded a production contract for the Patriot air-defense system's "PAC-3 (Advanced Capability-3)" interceptor to Lockheed Martin, covering FY21–23 production for the U.S. and Foreign Military Sales (FMS). The value is about $10.5 billion ($10,478,694,386).
- FY21–23 production of the Patriot "PAC-3" interceptor
- Awarded to Lockheed Martin; awarding component is the U.S. Army; U.S. + FMS
- Value ~$10.5B ($10,478,694,386), definitive contract, Apr 2020–Sep 2033
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≈$10.18B
Army
Per USAspending, the U.S. Army awarded production of the missile-defense interceptor "PAC-3 (PATRIOT Advanced Capability-3)" to Lockheed Martin. The value is about $10.18 billion ($10,181,587,045), a definitive contract running June 2024–September 2030. It is a series-production contract for a core terminal-phase (lower-layer) air-defense weapon that destroys incoming ballistic-missile threats by direct impact.
- The Army awarded production of the "PAC-3" interceptor to Lockheed Martin. Cumulative ~$10.18B ($10,181,587,045).
- Definitive contract, performance June 28, 2024 – September 30, 2030.
- PAC-3 is the PATRIOT system's interceptor, using "hit-to-kill" direct impact (terminal, lower-layer air defense).
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