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Simien

Energy calculation software for building designers, energy consultants and property owners in Norway

Lysaker, NorwayFounded 2019simien.noWebsite technologies

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Highlights

  • New on EvolcAdded 2026-10-29

About Simien

Simien develops energy calculation software for residential and non-residential buildings. Its main product, Simien PRO, is a cloud-based program that produces detailed energy analyses and evaluates buildings against TEK and the Norwegian energy certificate scheme; it was updated to NS 3031:2025 in January 2026. The company also offers Energiportalen, a calculation portal for homeowners, and SmartTune, a cloud tool that carries design-phase calculations into building energy management systems for real-time monitoring.

Customers include energy consultants, building-services and energy-saving contractors, and property managers. Named users on the website include Caverion Norge, Borg Forvaltning and Termoenergi Norge. Simien also runs free introductory courses on Simien PRO and offers free six-month access to students at institutions that teach building energy simulation.

Simien AS was founded in 2019 and is headquartered in Lysaker, Norway. The earlier Simien 6 desktop program is discontinued and is no longer valid under the regulatory requirements that apply from January 2026.

Product: Simien PRO, a cloud-based building energy calculation program, with the Energiportalen homeowner portal and SmartTune building monitoring tool.

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