561621 - Security Systems Services (except Locksmiths)

Top Businesses by Annual Sales for 561621 – Click for Complete Profiles:

ADT Inc	Alarmcom Holdings Inc
Tyco Fire SEC US Holdings LLC	Monitronics International Inc
Vivint Smart Home Inc	Lifelock Inc
Convergint Tech Group Hldngs L	Sensormatic Electronics LLC
Apx Group Holdings Inc	Knowbe4 Inc

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.

Cross-References. Establishments primarily engaged in--

• 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.

2007 NAICS	2012 NAICS	2017 NAICS	2022 NAICS	Index Entries for 561621
561621	561621	561621	561621	Alarm system monitoring services
561621	561621	561621	561621	Alarm systems sales combined with installation, repair, or monitoring services
561621	561621	561621	561621	Burglar alarm monitoring services
561621	561621	561621	561621	Burglar alarm sales combined with installation, repair, or monitoring services
561621	561621	561621	561621	Fire alarm monitoring services
561621	561621	561621	561621	Fire alarm sales combined with installation, repair, or monitoring services
561621	561621	561621	561621	Security alarm systems sales combined with installation, repair, or monitoring services
561621	561621	561621	561621	Security system monitoring services