This is Holmak: Specialist for air-to-air heat exchangers.

In focusing on counterflow heat exchangers, we declare our commitment to keep continuously optimising this technology.
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Holmak was established in 2007 under a Dutch management as a production company in Macedonia. Research & Development as well as the Design, Sales and part of the Production areas are based in Staphorst, the Netherlands. Holmak focuses on the development and production of air-to-air heat exchangers that operate using most efficient counterflow technology. State-of-the-art machinery and technologies, along with an experienced workforce, guarantee high product quality.

Holmak is part of the CENTROTEC Group.
Holmak is a subsidiary of CENTROTEC Sustainable AG, a German listed company that has specialised in energy-efficient heating, ventilation and climate technology in buildings. The group has around 3,000 employees and enjoys a presence in over 50 countries.


We are researchers. We are developers.

In testing new materials and concepts, we are able to constantly improve both our products and our own level of expertise. We can also call on the assistance of a pool of experts from the CENTROTEC Group.

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