A CLEANER TOMORROW TODAY

Versatile and continuously evolving, Koja provides HVAC technology and air handling solutions for buildings and ships, as well as fans and air solutions for industrial processes. With more than 90 years of experience, the company serves its customers with the assured competence of an experienced expert.

Koja develops smart and innovative technology efficiently and safely. The goal is to continuously improve operations and develop solutions that support customers in achieving their energy efficiency and sustainability goals.

As a Finnish family-owned company, Koja provides solutions for all conditions throughout the entire equipment lifecycle.

BUSINESS AREAS

Koja marine

MARINE

As a leading HVAC expert, Koja Marine is a trusted partner of shipyards and shipping companies. Koja masters the conditions everywhere on the ship.

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Koja Buildings

Buildings

Our long experience and expertise in ventilation, cooling and heating solutions guarantee optimal conditions for buildings, and clean and healthy indoor air.

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Koja INDUSTRIAL SOLUTIONS

INDUSTRIAL SOLUTIONS

Our optimized industrial solutions are used all over the world. High-quality fans and air solutions work reliably in demanding industrial processes and applications.

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Koja Group Sustainability Review

Koja Group Sustainability Review 2025

The key focus areas and development initiatives of Koja Group's sustainability work are compiled in the Group's Sustainability Review, covering environmental, social, and governance topics.

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KOJA GROUP INTERNATIONAL REACH

KOJA GROUP

Over the years, the Tampere-based family business has grown into an international group. Today, Koja Group comprises the parent company Koja-Yhtiöt Oy, along with Koja Oy, Chiller Oy, and their subsidiaries and operations in Finland, Sweden, Germany, and the United States.

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KOJA USA INC.

KOJA USA INC.

Koja USA Inc. focuses on helping customers in the United States to improve safety and optimize energy consumption. We are trusted partners in the maritime and industrial sectors; our customers are prominent cruise lines and industrial companies.

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TECHNOLOGICALLY AHEAD TO THE BENEFIT OF OUR CUSTOMER

Koja A UNIQUE R&D CENTER

A UNIQUE R&D CENTER

Koja’s R&D Center is a product development and testing center with comprehensive testing methods for all of Koja’s product groups in actual operating conditions.

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Finnish Manufacturing

Finnish quality manufacturing

Effective use of energy is one of the most important means to combat climate change. Koja’s solutions are designed to support efficient and sensible energy use.

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Koja ilmankäsittelyratkaisut

LET OUR EXPERTS HELP

How can we help? With more than 90 years of experience, Koja's experts help customers tackle everyday challenges and provide extensive technical expertise.

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