BruhnBruhn Holding is a family-owned business for research, investments, advisory and voluntary work. The key foundation for the company is the sharing of knowledge for the good of humankind. And there is a lot of experience and expertise that Fredrik Bruhn and Karolina Bruhn can share after many years of hard work in the most demanding of industries; aerospace, defense, and engineering. BruhnBruhn Holding is the parent company of BruhnBruhn Innovation and BruhnBruhn Properties.