Save 25% on your energy usage without renovations, while improving the comfort and indoor air quality of your buildings

Let’s face the environmental and energy transition of your tertiary and residential real estate park thanks to our Optimzen solution, using intercommunicating sensors, artificial intelligence, and Energy management technology.

Our solutions


Energy optimization, comfort and indoor air quality in office buildings or collective housing

Engineering consultant in Energy and fluid

Support on audits, before or during works (GTB)

Our key figures

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+ 0 millions
m² equipped
0 patents
international filed
0 GWh
of cumulative savings obtained
0 000 t CO2
emissions avoided
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0 millions €

Our strengths

The Tertiary Decree, of October 1, 2019, presents all the modalities of application of article 175 of the Elan law. It requires owners and tenants of buildings or parts of tertiary buildings with a surface area equal to or greater than 1,000m², to monitor and reduce their energy consumption.


Look back on your energy consumption and uses. Then, we can roll out your energy optimization plan together. Saving energy without waiting for renovations, all while improving comfort and air quality? It’s possible!

Our latest publications

Accenta & Oze-Energies merge to meet the challenge of guaranteed decarbonization of buildings

The two real estate experts are joining forces to offer the market an innovative range of low-carbon energy performance solutions. Our common ambition is

Our solutions

logo Optimzen Gold

With our intercommunicating sensors and artificial intelligence, Optimzen GOLD allows you to benefit from savings on energy consumption not being utilized, improve comfort and indoor air quality, all without renovations…