Following the revolution of 1956, he and his fiancée Marietta Puder fled to Austria where the two were married and soon after emigrated to the United States. Although penniless, the couple immediately found work; he as an economist, and she as a fashion designer. Andrew soon met the engineer Paul Soros, George Soros’s elder brother, with whom he formed a Coal Transportation business in the South. This and later business ventures enabled Paul Soros and Andrew to make their fortunes.
In the last decade or two of his life, Andrew, who had lost his wife, devoted himself more and more to charity work. He did this in part by financing the creation of memorials for the thousands of Jews and Roma forced laborers who were killed or died of typhus and starvation at the Austro-Hungarian border in 1944-1945. He also helped to finance Holocaust studies in Hungary. His latest and greatest philanthropic achievement was the creation of a center for recent refugees, immigrants, and asylum-seekers at the English-Speaking Union in New York City. This so far has helped some 750 newcomers to the US with year-long scholarships, English classes, workshops, civic programs, and cultural events.