ORT ran vocational training in two DP camps located in the Berlin district- Schlachtensee (also known as the Duppel Center) and Mariendorf, both in the American occupation zone.

Mariendorf was a mid size camp, with a population of about 3000. In June 1948, ORT school in the camp had fifty-six students training in dressmaking, metal trades and auto mechanics. Schlachtensee was the largest camp in the Berlin district, housing over 5000 DPs, who were living in barracks and wooden huts. Schlachtensee was widely regarded, especially in the period immediately after the establishments of DP camps, as the first stop for all those who illegally crossed the eastern border of Germany. From Berlin they would be illegally transported to American zone camps in the south of Germany and later to Palestine. The ORT school in the camp had 100 students, training in dressmaking, men garment cutting, underwear making, women's dresses cutting, metal trades, radio technology and dental technology.

During the Berlin Airlift, both schools were closed and the DPs evacuated to Frankfurt and later various camps in the west of Germany. Soon after the closure of the DP schools, however, an ORT school for free living Jews was opened in the building of the Jewish community at Joachimistaler Strasse, with an initial enrolment of eighty-five pupils.