Federal Contractor Index

    Four Rivers Nuclear Partnership LLC

    UEI H1HWLSEDDKQ8 CAGE 7PTC5 Active Englewood, CO

    Other Than Small Business · Data through September 22, 2026

    Obligations, FY2026
    $217.6M
    Total obligations, FY2024–FY2026
    $618.9M
    Contract actions, FY2024–FY2026
    12
    Top agency
    Department of Energy

    Obligations by fiscal year

    FY2021: $193,372,768FY2022: $197,287,046FY2023: $208,849,891FY2024: $195,462,329FY2025: $205,863,644FY2026: $217,552,617
    Fiscal yearObligations
    FY2026$217.6M
    FY2025$205.9M
    FY2024$195.5M
    FY2023$208.8M
    FY2022$197.3M
    FY2021$193.4M

    Agencies, NAICS, and PSC codes

    Top awarding agencies
    AgencyObligationsShare
    Department of Energy$1.22B100%
    NAICS codeObligationsShare
    562910 — Remediation Services$1.22B100%
    PSC codeObligationsShare
    F999 — Other Environmental Services$1.22B100%

    Contract type and set-aside mix

    Contract pricing typeObligationsShare
    Cost Plus Award Fee$1.22B99.9%
    Cost Plus Fixed Fee$1.7M0.1%
    Set-aside typeObligationsShare
    No Set Aside Used.$1.18B96.6%
    Not Specified$41.6M3.4%

    Place of performance by state

    StateObligationsShare
    Not specified$1.18B96.6%
    KY$36.0M3%
    CO$5.6M0.5%

    Largest contract actions on file

    AwardAgencyPeriod of performanceObligationRecord
    DEEM0004895 · NAICS 562910Department of EnergyMay 25, 2017 – —$43.3MView on USAspending
    DEEM0004895 · NAICS 562910Department of EnergyMay 25, 2017 – —$39.9MView on USAspending
    DEEM0004895 · NAICS 562910Department of EnergyMay 25, 2017 – —$38.5MView on USAspending
    DEEM0004895 · NAICS 562910Department of EnergyMay 25, 2017 – —$36.1MView on USAspending
    DEEM0004895 · NAICS 562910Department of EnergyMay 25, 2017 – —$35.8MView on USAspending
    DEEM0004895 · NAICS 562910Department of EnergyMay 25, 2017 – —$34.0MView on USAspending
    DEEM0004895 · NAICS 562910Department of EnergyMay 25, 2017 – —$33.3MView on USAspending
    DEEM0004895 · NAICS 562910Department of EnergyMay 25, 2017 – —$33.1MView on USAspending
    DEEM0004895 · NAICS 562910Department of EnergyMay 25, 2017 – —$32.1MView on USAspending
    DEEM0004895 · NAICS 562910Department of EnergyMay 25, 2017 – —$30.9MView on USAspending

    Parent company

    Amentum Holdings INC. (UEI TU4KCXMM9AP6)

    Other UEIs under this parent

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    What the numbers show

    100% of this contractor's obligations on file ($1.22B of $1.22B) came from a single agency, Department of Energy.

    No transaction in this record used a small-business set-aside; all obligations were awarded with no set-aside or an unspecified type.

    Obligations increased from $205.9M in FY2025 to $217.6M in FY2026, the last closed fiscal year.

    Source: USAspending.gov, U.S. Department of the Treasury. Contract transactions FY2021–FY2026, downloaded 2026-10-21. Figures are net obligations and can include de-obligations. Department of Defense data is published with a 90-day delay. View this contractor's largest contract on USAspending.gov.

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