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Forterro Acquires Klaes GmbH & Co

Klaes GmbH & Co. KG acquired by Forterro

AcquisitionTechnology, Information and MediaDE

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Klaes GmbH & Co. KG logo
Acquired

Klaes GmbH & Co. KG

GermanyTechnology, Information and Media

Undisclosed amount

April 23, 2026

Forterro logo
Acquirer

Forterro

Forterro, a European software group, has acquired Klaes GmbH & Co. KG, the world's leading software company for the window, door, facade, and conservatory industry, for an undisclosed amount. This corporate acquisition sees Forterro buying Klaes to expand its specialized software portfolio.

Klaes GmbH & Co. KG brings 280 employees, 28 language versions, and a customer base of over 7,600 across more than 50 countries. The company offers tailored software solutions for all sizes of businesses within its sector, from manageable tools for the building components trade to highly integrated ERP solutions for industrial production. Its long-standing experience, continuous software development, and unique cooperation with the supplier industry have established its market leadership.

The acquisition is a strategic move for Forterro to deepen its presence in vertical enterprise resource planning (ERP) software markets. By acquiring Klaes, Forterro gains a robust, specialized offering and a strong customer base in a niche yet global industry. Klaes is expected to benefit from Forterro's operational scale and resources, which can support further innovation and market expansion while maintaining its focus on high-quality, industry-specific solutions. This transaction is a clear purchase, integrating Klaes into Forterro's family of software companies.

The combined entity aims to enhance the value delivered to customers in the window, door, facade, and conservatory sectors. This acquisition is set to foster continued development of innovative software solutions, leveraging Klaes's deep industry know-how with Forterro's strategic backing, ensuring sustained growth and customer satisfaction for the integrated business.

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