USAspending.gov•SAM.gov

HANFORD TANK WASTE OPERATIONS & CLOSURE, LLC

UEI S3NQNFD3YS43 · CAGE 94PD1 · RICHLAND, WA · Parent: HANFORD TANK WASTE OPERATIONS & CLOSURE, LLC

Dated source observations

SAM: Active · expires 2027-04-02 · checked 2026-11-07

Exclusions: no active exclusion record matched this UEI · as of the 2026-11-06 extract

Requests SAM.gov registration data when a refresh is available. It updates this profile but does not create a verification record.

Classifications: corporate entity not tax exempt, foreign owned and us located business, other than small business

Registered address

2435 STEVENS CENTER PL
RICHLAND, WA 99354

SAM registration data · checked 2026-11-07

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Doing business with this entity? The check opens with UEI S3NQNFD3YS43 loaded and can seal a permanent verification record. Monitoring re-checks this UEI every morning, with three entities included free.

Federal footprint

Historical awards

$1.6B

USAspending · prime awards

Trailing 12 months

$816.2M

USAspending · obligations

Largest agency share

100%

Department of Energy

NAICS codes

observed across awards

USAspending subawards

No dated subaward observation is available.

Name matches do not establish identity. Reported subaward coverage is partial.

Awarding agencies for this contractor

This contractor's observed prime award obligations by agency · USAspending.gov · as of 2026-08-30

Department of Energy$1.6B · 100%

NAICS codes

562211$1.6B

hazardous waste treatment and disposal

3 awards observed

Largest prime awards· as of 2026-08-30

89303925FEM400064 · Department of Energy$1.6B
89303324FEM400402 · Department of Energy$7.6M
89303323FEM400366 · Department of Energy$0