De Dietrich Thermique
De Dietrich Thermique, founded in 1684 and based in Mertzwiller, France, is France's leading manufacturer of heating systems. De Dietrich Thermique has been committed to the development of sustainable comfort by creating innovative heating systems which consume less energy and preserve the environment. De Dietrich products are distributed and marketed in more than 60 countries.

Remeha
Remeha is a Dutch based internationally oriented manufacturer of high quality and innovative heating products and solutions with headquarters in Apeldoorn. Remeha, founded in 1935, also has a leading position in condensing technology and innovative solutions in the Dutch market. Remeha has its own subsidiaries in the UK and Germany and agents and distributors in various other countries.

Oertli
Oertli, by origin a Swiss manufacturer founded in 1929, produces comfort solutions such as heating boilers, burners, hot water tanks and complete solar systems. Oertli focuses on clean combustion (low NOx and CO2 emissions), energy saving technology and a high level of product usability. Oertli has a strong presence in France and a growing position in Belgium, Germany and Switzerland. Oertli is based in Thann, France.

Sofath
For 25 years, the DFM Group in Portes-les-Valence (France), better known under the brand Sofath, has been the pioneer of geothermal heat pumps in the French market, the leading market in heat pumps in Europe. The DFM group achieves a turnover of € 32 million and employs 110 people. There are 40 exclusive dealerships in France, providing a wide national network for the development of the Sofath brand, and there are many other distribution partners in France and Europe.