561621

561621 Security systems services (except locksmiths)

Services de systèmes de sécurité (sauf les serruriers) • Canadian industry

Sector 56 Administrative and support, waste m...
Parent 56162 Security systems services
Edition 2026 NAICS Canada
Status Active Canadian industry

What code 561621 includes

This Canadian industry comprises establishments primarily engaged in remote monitoring of electronic security alarm systems, such as burglar and fire alarms; and selling security systems, along with installation, maintenance or monitoring services.

Activities & Examples

  • alarm system (e.g., burglar, fire, security), sale combined with installation, maintenance or monitoring
  • alarm system monitoring
  • medical alarm, monitoring and service

Exclusions & Cross-References

  • locksmith services (See 561622 Locksmiths (US))
  • retailing motor vehicle security systems, with or without installation or repair services (See 441330 Automotive parts and accessories retailers (US))
  • retailing security systems for buildings, without installation, maintenance or monitoring services (See 459999 All other miscellaneous retailers (except beer and wine-making supplies retailers) (CAN))
  • wholesaling security systems for buildings, without installation, maintenance or monitoring services (See 416110 Electrical wiring and construction supplies merchant wholesalers (CAN))

Classification Hierarchy

International Concordance

  • US NAICS 2022: 561621 — Security Systems Services (except Locksmiths)
  • ISIC Rev. 4: N8020* — Security systems service activities

Other codes in this group (56162)

↑ 56162 Security systems services