System Atlas
NAICS 561621
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Security Systems Services (except Locksmiths)

This U.S. industry comprises establishments primarily engaged in (1) selling security alarm systems, such as burglar and fire alarms, along with installation, repair, or monitoring services or (2) remote monitoring of electronic security alarm systems. It has no schema of its own: companies here are mapped on the Universal schema, and what it does not cover is recorded as gaps.

Baseline
Universal v1
Inherited from
Universal
Companies mapped
0 of 0
Primitives
47 in 8 parts
Last updated
Nov 2, 2026