- Calpak Cicero Hellas, is our main provider of the solar products including the solar collectors, thermosiphonic systems and the floor standing tanks.
- RESOL GmbH, German Company specialized in developing solar controllers for solar thermal, central heating and air conditioning systems.
- Domoteck Ltd, is our partner and supplier of the electric underfloor heating systems and the water based underfloor systems. Domoteck has its origin from Israel.
- Valentin Energy Software, is a German software company specialized in developing computer software for solar energy systems.
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