Skip to content
DefDex

Prime · United States

Consolidated Nuclear Security

HQ United States

Consolidated Nuclear Security, LLC (CNS) is the management and operating contractor for the National Nuclear Security Administration's Y-12 National Security Complex in Oak Ridge, Tennessee. Bechtel National, Inc. is the lead member; minority members are Leidos, Inc., ATK Launch Systems, LLC and SOC LLC. CNS also operated the Pantex Plant until November 1, 2024, when PanTeXas Deterrence, LLC took over that contract. NNSA lists the CNS Y-12 contract as running to September 30, 2027 and plans to recompete it for award in 2027.

Website

Federal Prime Contracts$34.66B obligated · FY2013–FY2027

Obligated
$34.66B
FY2013–FY2027
Contract actions
409
2 awards
Peak year
FY2022
$3.82B
Top buyer
U.S. Department of Energy
100% of obligations
Obligations by fiscal yearLast 5 full years avg $3.19BFaded: FY2026 so far; DoD publishes actions about 90 days late.
FY2013: $4.0M · 1 actionsFY2014: $1.27B · 17 actionsFY2015: $1.65B · 28 actionsFY2016: $2.03B · 35 actionsFY2017: $2.34B · 39 actionsFY2018: $2.62B · 33 actionsFY2019: $2.60B · 26 actionsFY2020: $2.87B · 29 actionsFY2021: $2.61B · 27 actionsFY2022: $3.82B · 33 actionsFY2023: $3.33B · 33 actionsFY2024: $3.65B · 31 actionsFY2025: $2.54B · 37 actionsFY2026 (to date): $3.34B · 39 actions
’13’17’21’26
Show as table
Obligations by fiscal year
Fiscal yearObligatedActionsAwards
FY2026 (to date)$3.34B391
FY2025$2.54B371
FY2024$3.65B311
FY2023$3.33B331
FY2022$3.82B331
FY2021$2.61B271
FY2020$2.87B291
FY2019$2.60B261
FY2018$2.62B332
FY2017$2.34B391
FY2016$2.03B351
FY2015$1.65B281
FY2014$1.27B171
FY2013$4.0M11

What they sell (PSC)

  1. Operation of Miscellaneous Buildings$34.66B 100%
  2. Maint/Repair/Rebuild of Equipment- Vehicular Equipment Components$6K 0.0%

Industry (NAICS)

  1. Facilities Support Services$34.66B 100%
  2. All Other Support Services$6K 0.0%

Where the work is done

  1. Tennessee$34.66B 100%
  2. Texas$6K 0.0%

Contract pricing

  1. Cost Plus Award Fee$34.66B 100%
  2. Firm Fixed Price$6K 0.0%

Competition

  1. Full and Open Competition$34.66B 100%
  2. Competed Under SAP$6K 0.0%

Largest awards2

Signed obligations on federal prime contracts (award types A–D) from USAspending, FY2008 through Oct 9, 2026. Obligations are money the government committed, not company revenue, and include de-obligations. Subcontracts and grants are excluded. Matching is by registered UEI.

Joint venture

Owned by Bechtel (lead member), ATK Launch Systems (member), Leidos (member) and SOC LLC (member). Its awards are counted here only, never in a partner's totals. Source

Sources4

  1. 1

    Y-12 National Security Complex · Jul 23, 2026 · Supports Organization · description, Organization · ownership

    “Consolidated Nuclear Security, LLC operates the Y-12 National Security Complex, located in Oak Ridge, Tennessee, for the U.S. National Nuclear Security Administration.”
  2. 2

    U.S. Department of Energy, NNSA · Supports Organization · description

    “Y-12 National Security Complex (Y-12) Consolidated Nuclear Security, LLC (CNS) 1/8/13 7/1/14 9/30/27”
  3. 3

    Pantex Plant · Supports Organization · description

    “as of November 1, 2024, PXD assumed the responsibilities of managing and operating the Pantex site”
  4. 4

    Consolidated Nuclear Security · Supports Organization · website

    “Focused On The Mission”

Government identifiers1

UEI
EWV8QKG1JUV7
confirmed · Checked Oct 10, 2026
Source ↗

Identifiers are matched to this legal entity; related companies may hold different registrations.

Each fact on this page is attached to the sources that support it. Archived copies are linked when we keep one.