Dr. Erich Wiesner

EY World Entrepreneur Of The Year™ 2025 finalist, Austria
Owner and CEO of WIEHAG Holding GmbH


Dr. Erich Wiesner is building a greener tomorrow with innovative timber solutions.

Photographic portrait of Dr. Erich Wiesner

Dr. Erich Wiesner, the CEO and fifth-generation owner of WIEHAG Holding GmbH, is crafting a sustainable future in the timber construction industry. His vision is to replace environmentally detrimental materials such as concrete and steel with wood and promote long-term carbon dioxide storage. 

WIEHAG Holding GmbH excels in innovative timber solutions, positioning wood as a sustainable alternative in modern construction practices. The company combines specialized timber engineering with a state-of-the-art production facility that manufactures precise, ready-to-install components for global export. This focus on prefabrication and comprehensive solutions empowers architects and builders to take on large and complex projects sustainably. Under Erich’s leadership, WIEHAG Holding GmbH has been heavily involved in several groundbreaking projects, including the world’s tallest timber hybrid structure in Milwaukee, Wisconsin; the architectural landmark World of Volvo in Gothenburg, Sweden; and Asia’s largest timber building in Singapore.

Dr. Erich believes strongly in the company’s role in facilitating green transformation and engaging associations that advocate for sustainable construction practices. His entrepreneurial journey reflects a commitment to embracing risks and uncertainties, shaping both his business acumen and personal growth. Erich is excited about technology’s role in fostering progress and sustainability, and he is positioning WIEHAG Holding GmbH at the forefront of the transformation toward greener building materials and practices.

Running an entrepreneurial business is like running a marathon. On your way, you will encounter physical and mental challenges. But you should never give up.
You are visiting EY asean (en)
asean en