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Home/Department of the Interior/NAICS 561621/PSC R604

Agency + NAICS + PSC page

Department of the Interior NAICS 561621 and PSC R604 contractors

Security Systems Services (except Locksmiths). SUPPORT- ADMINISTRATIVE: MAILING/DISTRIBUTION. Cross-code overlap under Department of the Interior.

Department of the Interior · NAICS 561621 · PSC R604

Last updated: April 3, 2026

Visible recipients

1

Mapped obligations

$584,472,940

State overlap

1

Top recipients

Visible recipients in the Department of the Interior overlap of NAICS 561621 and PSC R604

Siemens Government Technologies INC

Arlington, VA

Arlington, VA | 227 awards | Top agency Department of Defense | NAICS 541512

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Top recipient paths -- ranked view
Department of the Interior NAICS 561621 -- drop PSC filter
Department of the Interior PSC R604 -- drop NAICS filter
VA -- search by state