NAICS Code 561621 – Security Systems Services (except Locksmiths)
Below, we will present the types of establishments that are under the NAICS code 561621, as well as their corresponding classification. This code is used to identify and categorize specific businesses within a given sector.
Description NAICS Code 561621 – Security Systems Services (except Locksmiths)
This industry comprises establishments primarily engaged in:
selling security alarm systems, such as burglar and fire alarms, along with installation, repair, or monitoring services or
remote monitoring of electronic security alarm systems.
NAICS code 561621 includes:
Alarm system monitoring services
Alarm systems sales combined with installation, repair, or monitoring services
Burglar alarm monitoring services
Burglar alarm sales combined with installation, repair, or monitoring services
Fire alarm monitoring services
Fire alarm sales combined with installation, repair, or monitoring services
Security alarm systems sales combined with installation, repair, or monitoring services
Security system monitoring services
NAICS Code 561621 does not include the following references:
Selling security alarm systems for buildings, without installation, repair, or monitoring services are classified in Sector 42, Wholesale Trade, or Sector 44-45, Retail Trade;
Installing alarm systems (e.g., fire, burglar), without selling or monitoring services are classified in Industry 238210, Electrical Contractors and Other Wiring Installation Contractors; and
Retailing motor vehicle security systems, with or without installation or repair services are classified in Industry 441330, Automotive Parts and Accessories Retailers.
