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KSS becomes part of the SI Group!

The SI Group continues its expansion in Sweden by acquiring KSS Klimat & Styrsystem AB (KSS). The acquisition strengthens the SI Group's position as a leading player in energy optimization and building automation and opens up new opportunities in strategically important submarkets.

SI Lorentzon AB – A merger that makes it easier for you! 

To meet our customers' needs even better, we will merge SI Skaraborg and SI Lorentzons Styr into a new company: SI Lorentzon AB in the spring of 2026.

A decade after the Paris Agreement: What does COP30 mean for the future of sustainable real estate?

COP30 in Belém, Brazil marks ten years since the Paris Agreement and underlines that the goal of limiting global warming to 1.5 degrees remains.

Adconsys Oy becomes part of the SI Group!

SI Group continues its expansion in Finland through the acquisition of Adconsys Oy. The acquisition strengthens SI Group's position as a reliable and valued player in energy optimization and building automation.

SI and Normatic acquire Norwegian BS Teknikk AS

The SI Group continues its expansion in Norway through SI Normatic's acquisition of BS Teknikk AS. The acquisition strengthens the SI Group's position as a reliable and valued player in energy optimization and building automation.

SI's Finnish subsidiary RAU-Service acquires Pohjanmaan Kiinteistötekniikka Oy

The entire staff of Pohjanmaan Kiinteistötekniikka has now transferred to RAU-Service.

SI Group AB and RAU-Service Oy embark on a joint journey

SI is making a major investment in Finland, which means that the Ostrobothnian building automation company RAU-Service Oy will become part of the group.

SI's properties are 32 % more energy efficient than the Swedish average

In Sweden, the average consumption for premises is 106 kWh/m² per year (climate-corrected heating and hot water). At SI, the figure is significantly lower – just 72 kWh/m² per year for our 171 facilities.

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challenges around saving
energy in properties.