Marco Sieber from Lucerne has been the owner of SIGA Holding AG, a globally active family business, together with his brother Reto since 1988. The company, which exports over 80% of its products, supports architects, builders and fabricators in constructing energy-efficient buildings.

The father of two children has several years of experience on the boards of directors of internationally active companies and is a member of Kompass Europe by conviction.

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