Sector Alarm is one of Europe’s largest home-alarm and monitoring companies, founded in Oslo in 1995. It operates in Portugal through Sector Alarm Portugal, Unipessoal Lda (NIF 503481939), a licensed private-security operator that runs its own 24/7 alarm reception centre. The group serves more than 730,000 customers across eight European countries.
Sector Alarm entered the Portuguese market through Sector Alarm Portugal, Unipessoal Lda (NIF 503481939, formerly Segurança 24, Unipessoal Lda), a licensed private-security operator. The company runs its own Alarm Reception Centre under Portuguese Ministry of Internal Affairs authorisation, providing 24/7 monitoring, and operates from a head office in Entroncamento (Santarém) with a commercial office at Parque Oriente in Lisbon. Its model is the same subscription-based, professionally monitored intruder-alarm service the group built in Scandinavia: hardware installation plus a recurring monthly monitoring contract.
The Portuguese arm is one node in a pan-European footprint. The parent, Sector Alarm Group, was founded in Oslo in 1995 and has grown into one of the largest residential-security providers in Europe, with more than 4,200 employees and over 730,000 customers across Norway, Sweden, Finland, Ireland, Spain, France, Italy and Portugal. Portugal is a fully registered local entity rather than coverage run from a neighbouring market — a meaningful distinction in a services sector where many foreign players operate through a single Iberian hub.
Home security is a classic recurring-revenue, trust-driven business, and Sector Alarm’s Portuguese presence shows a Nordic operator exporting not just a product but a subscription model and monitoring infrastructure into the Iberian market. For the Portugal ↔ Scandinavia corridor, it is an example of Nordic services capital — not just manufacturing or retail — putting down licensed, staffed roots in Portugal.
Fractio helps Nordic companies enter the Portuguese market — from market sizing to first sales, hiring, and legal setup.
Talk to Fractio →