1973 the company becomes a Ges. m. b. H. Friedrich M. Welz was the sole owner of the Galerie Welz until the end of 1973. With the conversion into a Ges. m. b. H. long-term employees become co-partners. Welz remains the majority shareholder and managing director.
In 1978 Friedrich M. Welz hands over his shares to the gallery employees and leaves the company.
Friedrich Maximilian Welz died on February 5, 1980 in Salzburg.