Sector Alarm security system

Sector Alarm is one of Europe's leading providers of home and business security solutions, specializing in monitored alarm systems. Founded in 1995 by Jørgen Dahl in Trondheim, Norway, the company has expanded significantly across several European markets including Sweden, Finland, Ireland, Spain, and France.

While the company is headquartered in Oslo, Norway, its physical security hardware (such as sensors, control panels, and cameras) is typically manufactured by various global electronics partners, often in Asia or through specialized European manufacturers, while the proprietary software and monitoring services are managed internally.

As of 2026, the company remains under the majority ownership of its founder, Jørgen Dahl, who holds a 70% stake. The remaining 30% is owned by KKR (Kohlberg Kravis Roberts), a prominent American global investment firm. This partnership has supported the brand's aggressive growth strategy and its acquisition of regional players like PhoneWatch and HomeSecure in Ireland.