Technically ahead, for the client.

Koja Ltd. specialises in cost and energy efficient HVAC technology, air conditioning systems and fans for industrial processes that surpass expectations. We challenge ourselves from your starting points. We create the best solutions for all conditions, throughout their life cycle. We help you in everyday situations with more than 80 years of experience. You can always trust our expertise.
Take a look at Koja's versatile know-how »


Koja brings pleasant conditions to Zsar Outlet Village

Koja Life Cycle Solutions has agreed with East Gate Finland on the overall building HVAC system delivery to Zsar Outlet Village. 


Koja takes part in world class research

Koja’s R&D Engineer Turo Välikangas in collaboration with the Department of Energy Technology at Aalborg University has written an article which will be published in the International Journal of Heat & Mass Transfer.


Koja USA Inc. officially opened in Miami

The official opening ceremonies of Koja USA Inc. were held in Miami in the beginning of November. Thanks to all the participants! 


The fan factory close to being ready

The new factory built in Tampere is at the commissioning stage. The fan factory, equipped with modern technology, is among the world leaders in the field. All production will start in the recently completed premises towards the end of the year.


Towards incomparable service

Our fan experts ensure professional and competent service close to customers in Koja's recently opened branch office in Sweden. In addition to process fans sales, also service operations are now offered locally.


Looking for an experienced Business Director

Is process fans business your business? We are looking for an experienced Business Director to join our internationally growing team.


Heat Transfer Engineering to publish a scientific article from one of Koja’s engineers

An article by doctoral student Turo Välikangas, Research & Development Engineer at Koja, has been selected for publication in the international journal Heat Transfer Engineering.


AXIKO selected to supply HVAC systems for Global-class cruise ships at MV Werften

MV Werften has contracted AXIKO for building HVAC systems for four Global –Class cruise ships for the ship owner Star Cruises. AXIKO, a unique consortium, combines Koja's HVAC knowledge with ENGIE/Axima’s experience on such large turnkey projects. 


Life Cycle Solutions offers complete building services engineering solutions as a new service

Life Cycle Solutions, Koja's new business unit, specialises in the design and implementation of complete building services engineering solutions. We help our customers achieve the best possible outcome by combining our strong experience with the latest technical solutions.


Koja's new building services engineering concept is praised: "This is the easiest solution for the company"

Life Cycle Solutions implemented a complete energy refurbishment project in the business and production premises of Teleste Plc's head office in Turku, Finland. Project manager Pertti Salmela thanks Koja for fluent cooperation.

"Koja is capable of offering a complete package from start to finish without any intermediaries", says Salmela.


Koja Netto – Save money!

Koja has solved the problems of a traditional liquid heat recovery system using new technology. Helli Huvinen, HVAC designer at Koja, has published a final thesis on the ability of a liquid heat recovery system to retain its temperature efficiency over the long term. The key finding was that with the Koja Netto system, it is possible to retain high temperature efficiency regardless of outside temperature. Depending on dimensioning, the system is capable of achieving a temperature efficiency of as much as 80 %.


Towards unique outcomes with the modern technology used in the new product development and testing centre

The building project that started at the beginning of the year has proceeded well. Environmental chambers and a measuring arrangement for larger air-handling machines will be constructed in summer, which will enable tests to be performed in a variety of conditions.


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