Products / Services / Activities

Type of member

  • Company (SME)

General presentation

« In the environment sector? Yes! With concrete results for businesses!

Our offer ranges from one-off solution to a guaranteed optimisation process.

The core business of Optiwatt is to optimise, from an energy point of view, the operation of existing technical installations and the design of new entities. Our experts work in the largest buildings, whether industrial, administrative, institutional or commercial.

Our customers can declare exceptional results. Thanks to the pragmatism of our technical expertise and our capacity to collaborate with existing teams, OPTIWATT can demonstrate on average more than 20% of energy savings with a return on investment within less than six months.

We do not only provide for quick energy savings, we will also improve the operation of our customers' equipment with a longer-term view and finally, in this way, we enhance their property assets.

Our cooperative company has strong values. They can be summarised as respect for human resources and environmental conservation.

The largest businesses trust us! Our customers include UCB, Zoétis (Pfizer Group), Sonaca, Sodexo, Sofitel (Accord Group), Mc Kinsey, Valens, UCL, and also certain towns.

How much can you save in CO2, in €? We'll find out.”

Domains of specialization

  • C - Studies & design
  • B - Energy Efficiency


Rue du Cerf 200
1332 Genval, Belgique
+32 473 43 01 50
BE 0534.730.217


Belpaire Sébastien
Administrateur délégué
+32 473 43 01 50

Key figures (Belgium)