Career
Gartz was also the Minister of Trade and Industry from 1944 to 1946. Gartz was active in the employers" organizations (predecessor of Confederation of Finnish Industries), and he was also once the Chief Executive Officer of A. Ahlstrom Oy and chairman of the board of STK. Following his ministerial career Gartz was assigned as the ambassador to Switzerland as well as to Romania and Soviet Union on two occasions in the 1950s.