In the years prior to World War II Oschersleben expanded due to the AGO Flugzeugwerke aircraft factory that was founded there in 1916 and once again needed numerous workers.

This military aircraft factory operated under the differing name of "Apparatebau GmbH Oschersleben" during the years of the Third Reich, to retain the AGO acronym.

By 1941, AGO was acting as a prime subcontractor for the production of Kurt Tank's Focke-Wulf Fw 190 fighter, which made it a prime target for Western Allied strategic bomber forces, which attacked the town ten times.

Besides some industrial establishments settled there, for example the still existing manufacturer of pumps as well as sugar refineries, iron foundries, breweries, machine shops, and brick works.

[3] Since 2000, the Motopark Oschersleben race track is used in the Deutsche Tourenwagen Masters, World Touring Car Championship (WTCC), and other series.