In 1920 he married Hermine Meienhofer, daughter of the baker Hermann Meienhofer. From then until 1923 he worked for the sewing machine factory Athos in Paris. After the death of his father in 1926 he ran the family business together with his brother Gustav as Fritz Gegauf's Söhne.
Fritz Gegauf married Hermine Meienhofer, daughter of a baker, in 1920. He then worked for Athos sewing machine factory in Paris until 1923. Following his father's death in 1926, he co-founded the family business with his brother Gustav as Fritz Gegauf's Söhne.