Viessmann is an international manufacturer of heating systems based in Allendorf (Eder), Germany. It controls 27 production and management centers in 11 countries, its products are available in 74 countries and owns 32 subsidiaries and 120 sales offices worldwide.
Atlantic was founded in 1968 in La Roche – sur – Yon on the west coast of France. It is the leading French company in the field of heating and energy saving. Atlantic’s experience with multiple sources of energy (electricity, gas, solar energy, etc.) makes it one of the best in Europe.
The largest manufacturer of central heating and air conditioning systems in Europe, with an increasing presence worldwide. With over 41 years of experience in this field and a complete range of products and systems, produced in 9 factories, Climaveneta meets the specialized heating and cooling requirements applicable to any type of building
REHAU was founded in 1948 by Helmut Wagner in Upper Franconia. It has the leading position as a supplier of systems and services for polymer solutions in Construction, Automotive and Manufacturing fields. It operates on 5 continents with more than 170 headquarters and approximately 18,000 partners from 54 countries.
A pioneer in the research, development and production of solar-thermal products in Greece, based in Corinth. Calpak specializes, with over 30 years of experience, in converting solar radiation to thermal energy and producing and distributing innovative solar equipment, with exports to many European countries such as Germany, Austria, France, Italy and others.