Leidos

Nuclear Weapon Producers

Leidos is part of the joint venture that manages and operates the Y-12 National Security Complex, where U.S. nuclear weapons are assembled.

Nuclear Weapons |  Investments

Company Profile

Leidos is a U.S.-based company active in defence, intelligence, civil, and health markets.[i] Its defence sector activities include “enterprise and mission IT, large-scale intelligence systems, command and control, geospatial and data analytics, cybersecurity, logistics, training, and intelligence analysis and operations support”.[ii] Leidos is part of the joint venture that manages and operates the Y-12 National Security Complex, where U.S. nuclear weapons are assembled. In the financial year ending 2 January 2026, Leidos generated revenues of $17.2 billion.[iii]

[i] Company (no date) | Leidos. Available at: https://www.leidos.com/company (Accessed: 1 October 2025).

[ii] Markets (no date) | Leidos. Available at: Markets | Leidos (Accessed: 1 October 2025).

[iii] ‘2025 Annual Report’, Leidos (2026), p. 46. Available at: 2c9c2039-902e-4984-8260-a350ca33c780.

Contact information

Leidos Holdings Inc.

1750 Presidents Street

Reston, VA 20190

United States

Website: https://www.leidos.com
LinkedIn: https://www.linkedin.com/company/leidos

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Nuclear Weapons

Leidos is part of the Consolidated Nuclear Security (CNS), LLC joint venture that manages and operates the Y-12 National Security Complex, where U.S. nuclear weapons are assembled.[i]  The Y-12 Complex has been responsible for remanufacturing components for the B61-12 nuclear gravity bomb[ii] and the manufacture of components for the W88 nuclear warhead alteration (deployed on the Trident II D5 missile)[iii], the W80 life extension program (for use in the U.S. Long Range Standoff Weapon)[iv] and the W87 warhead modification (to be fielded on the new U.S. ICBM)[v]. The contract held by CNS has a potential value of $50 billion.[vi]

[i] About (no date) | Consolidated Nuclear Security, LLC. Available at: https://cns-llc.us/about (Accessed: 1 October 2025);

‘Fiscal Year 2024 Stockpile Stewardship and Management Plan’, National Nuclear Security Administration (2023), pp. F-61 – F-64. Available at: FY24SSMP_FINAL_NOVEMBER_2023_0.pdf (energy.gov).

[ii] ‘B61-12 Life Extension Program’ (2023). National Nuclear Security Administration. Available at: https://www.energy.gov/sites/default/files/2023-04/B61-12%20042023.pdf.

[iii] W88 Alteration 370 Program’ (2023). National Nuclear Security Administration. Available at: https://www.energy.gov/sites/default/files/2023-11/W88-ALT370_1123.pdf.

[iv] ‘W80-4 Life Extension Program’ (2023). National Nuclear Security Administration. Available at: W80-4_1123.pdf.

[v] ‘W87-1 Modification Program’ (2023).  National Nuclear Security Administration. Available at: W87-1_1123.pdf.

[vi] Contract No. DE-NA0001942 (2018) Energy.gov. Section J, Appendix A, Page 1. Available at: https://www.energy.gov/nnsa/downloads/contract-no-de-na0001942 (Accessed: 1 October 2025);
CONTRACT to CONSOLIDATED NUCLEAR SECURITY LLC. | USAspending’, 8 January 2013. Available at: https://www.usaspending.gov/award/CONT_AWD_DENA0001942_8900_-NONE-_-NONE- (Accessed: 1 October 2025).

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Last updated: 2026-06-08 16:55:36

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