Everyone in Califel contributes with professionalism and dedication to the design, installation and maintenance of the latest generation thermo-hydraulic and air conditioning systems for the residential, hospital and tertiary sectors.

Established in 1963, EUROKLIMAT SpA is one of the first Italian companies to design, plan and build water chillers and precision air conditioners.

ISC Sales Inc. provides superior industrial products to a wide variety of end-users and original equipment manufacturers (OEM). They offer a broad range of climate control products for electrical enclosures, such as air conditioners, vortex coolers, air to air heat exchangers, purge & pressurization units, filtered fans, and thermoelectric coolers.

Rossair Ltd. specialize in the design, supply, installation and maintenance of mechanical and electrical building services. They provide a full range of facilities management solutions. They deliver tailored, complete solutions to clients of all sizes, and in all sectors, notably Retail, Commercial, Industrial, Public Sector and Transport, with a focus on decarbonization.

Smart Solar Energy, which has been conducting R&D studies since 2013 and set out with the principle of providing world-class Smart City Units solutions to all its customers by using the developing technology, Smart Solar Energy has become a leader in Turkey and the world in the last 6 years. It has also become the largest smart city furniture manufacturer in the region.

TERMOTECNICA SITA SRL provides service and maintenance of HVAC equipment and systems, including Boilers, Water Heaters, Air Conditioning, etc. The company's headquarters is based in Rome, Italy.

Wenta offers suitable and successful solutions with its experienced engineers, employers and modern technology of its industry. Wenta Ankara Factory, at its 50002 indoor and 3000 m2 open area, produces Steam Boilers, Steam Generators, Hot Oil Tanks, Hot Water Tanks, Economizers, Thermal Deaerators; and provides turn-key deliveries of these products to their customers.