561621: 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.
The data published with NAICS code 561621 are comprised of the
following SIC industry:
7382 Security Systems Services (Except Locksmiths)