Tupos, Finland – April 25, 2025
The owner family of German renewable energy technology company Heizomat GmbH has become the majority shareholder of Finnish cleantech company Volter Oy on 24.4.2025 by acquiring 50% of the company’s shares from Taaleri Circular Economy Fund, which had been Volter’s principal owner since 2017.
This strategic transaction strengthens the collaboration between two cleantech pioneers—first established as a customer relationship in 2011—and supports the development of a strong European hub for bioeconomy expertise.
Volter is widely recognized for its combined heat and power (CHP) plants and productization services, while Heizomat is internationally known for its biomass boilers, wood chip heating systems, and chippers.
“This partnership opens up a whole new scale of opportunities for us,” says Jarno Haapakoski, CEO of Volter Oy. “Heizomat’s family-owned structure, strong technological foundation, and deep understanding of decentralized energy production create a solid basis for Volter’s long-term development.”
The ownership change will expand the reach of Volter’s technology and services, particularly in Central and Eastern Europe. Heizomat sees the investment as a strategic complement to its product portfolio, especially in the field of combined heat and power generation.
“Volter is a great example of Finnish engineering excellence, combining technical sophistication with a sustainable business model. We are excited to be part of its next chapter,” says Robert Bloos, CEO of Heizomat GmbH.
Taaleri Circular Economy Fund has supported Volter’s development over the past eight years and sees this as a natural time to exit, in line with the fund’s strategy.
“Volter has reached a new stage in its growth, and we are pleased to pass ownership to a party that shares our long-term values and ambition for sustainable expansion,” says Kati Salo, Portfolio Manager at Taaleri.
The transaction will not impact Volter’s operations, management, or personnel. The company will continue to operate from its headquarters in Tupos, Finland. Existing customer and reseller agreements will remain in effect.
Further Information:
Volter Oy – Jarno Haapakoski, CEO, jarno.haapakoski@volter.fi
Heizomat GmbH – Robert Bloos, CEO, robert.bloos@heizomat.de
Taaleri Circular Economy Fund – Kati Salo, Portfolio Manager, kati.salo@taaleri.com
