A nna Viegener is a German heiress and a key shareholder in her family's company, Viega, a world leader in installation technology for sanitary and heating systems. The company is particularly famous for its high-quality copper and stainless steel press fittings used in plumbing. The business was founded by her great-grandfather, Franz-Anselm Viegener, in 1899.

Anna represents the fourth generation of the family to be involved in the business. She has served as the chairwoman of the shareholders' committee, playing a key role in the governance and long-term strategic direction of the privately-held family enterprise. Viega has grown from a small German manufacturer into a global giant with a reputation for engineering excellence and innovation. Her wealth is tied to the success of this highly specialized and profitable manufacturing business that has been passed down through her family for over a century.