Koja Group

The versatile and continuously developing Koja Group offers its customers smart and energy-efficient air handling solutions. The cooling, heating and energy solution specialist Chiller Oy is part of the group.

Koja Group is a responsible, Finnish family-run business. We create innovative technology efficiently and safely, with the customer at the centre of our operations. We realise application-specific solutions, products and services from start to finish – from product development to the end of life cycle. Continuously developing our operations, we strive to reduce our carbon footprint and promote sustainability.

The family-run Finnish business has offered sustainable services for 85 years. Koja Group creates innovative technology efficiently and safely.

Chiller Oy

  • An independent subsidiary of Koja Group since 2019
  • Approximately 120 employees
  • Core tasks include the development and marketing of innovative cooling solutions


  • A Finnish business group specialising in air-handling solutions and industrial process fans
  • Established in 1935
  • Turnover of €101M in 2019
  • Over 400 employees
  • www.koja.fi