Federal activity overview — Security Systems Services (except Locksmiths)
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NAICS / PSC
Federal contracts and opportunities classified under NAICS 561621 (Security Systems Services (except Locksmiths)). Part of the Admin & Support Services sector.
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Security Systems Services (except Locksmiths) Government Contracts & Federal Records
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is NAICS 561621 (Security Systems Services (except Locksmiths)) — federal contracts, grants, and procurement activity classified under this code; useful for SAM registration, capability statements, and pursuit decisions
Security Systems Services (except Locksmiths) is part of Admin & Support Services. The 2-digit sector code rolls up all NAICS in this family.
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NAICS 561621 (Security Systems Services (except Locksmiths)) classifies federal procurement activity in the Admin & Support Services sector.
NAICS 561621 opportunities
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Bureauify. (2026). Security Systems Services (except Locksmiths) — Federal Contract Intelligence. Bureauify Federal Intelligence. Retrieved , from https://bureauify.com/industry/561621
Primary: SAM.gov, USAspending, FPDS. Supplemented by 110+ federal data feeds including GAO, IG reports, Federal Register, and agency forecasts.
Records are normalized, deduplicated, and enriched with NAICS descriptions, agency hierarchies, and set-aside classifications. Semantic embeddings enable concept-based search beyond keyword matching.
Data is sourced from official federal systems and refreshed regularly. Verify critical details on the originating agency website before making business decisions.
This naics page aggregates data across all indexed federal sources.