Heat networks

Artesia

Artesia Environnement specializes in groundwater consultancy and the design of geothermal open loop systems. It provides aquifer characterization, predictive 3D hydrogeological modeling, and technical advisory services. The company also develops the Krigis software for the management of groundwater pollution data.

Rue du Bois Saint-Jean 15, 4031 Seraing, Belgique

Last updated: 06/03/2026

Callens

Callens is a Belgian family firm founded in 1966. In just over half a century we have grown into a much sought-after heating and air technology partner for the process engineering industry.

Industrielaan 21, 8790 Waregem, Belgique

Last updated: 25/02/2026

CoopERLIC

CoopERLiC (Coopérative Énergétique Liégeoise Citoyenne) is a social economy cooperative whose objective is to support collective action for the climate in order to enable the people of Liège to become concrete actors in the Energy Transition. It will also participate in the short energy supply chain.

Rue de l'Académie 53, 4000 Liège, Belgique

Last updated: 06/03/2026

Coriance Belgium

We build, develop and operate local urban heat networks powered by sustainable energy.

Last updated: 23/04/2025

TWEED

A Walloon organisation bringing together companies active in the sustainable energy sector, Cluster Tweed initiates, participates in and monitors a wide range of projects in various sectors (wind power, photovoltaics, geothermal energy, smartgrids, etc.) and professions (R&D, financing, manufacturing, marketing, etc.).

Last updated: 04/02/2026