Fritz launched the two business endeavors that would become his main concentrations for the next forty years. One was based in Switzerland, the other in the U.S.

In Davos, Switzerland he formed Sunstar, a mountain resort hotel group grown out of his real-estate ventures with Rieder. When Sunstar was sold in 2009, it included seven four-star hotels all located in major winter resort towns located in the Swiss Alps.

In the United States, Fritz became an early investor in Mt. Rose after meeting some of the founders at the ski shows he attended annually for the previous twenty years promoting Henke boots. He became the company’s majority shareholder in 1971 and has controlled the growth and direction of Mt. Rose ever since.