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Small Business Administration NAICS 561621 and PSC N063 contractors
Security Systems Services (except Locksmiths). INSTALLATION OF EQUIPMENT- ALARM, SIGNAL, AND SECURITY DETECTION SYSTEMS. Use this deeper buyer cross-code page to see which visible contractors sit in the overlap between these two lanes under Small Business Administration.
Small Business Administration · NAICS 561621 · PSC N063
Last updated: April 7, 2026
Visible recipients
1
Mapped obligations
$1,738,215
State overlap
1
Top recipients
