NAICS Code 56 Companies ... NAICS Code 561 Companies ... NAICS Code 5616 Companies ... NAICS Code 56162 Companies ... NAICS Code 561621 Companies
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.
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