[3] When the Herero uprising broke out in German South West Africa, Woermann's company was the only one which offered an open connection to the colony.
Soldiers, horses, weapons, equipment, and supplies were transported to the colony almost exclusively through his company.
The company also used warehouses to store beds, provisions, and equipment for departing troops.
The war brought Woerman unexpected profits, which nearly doubled during the Herero and Nama genocide.
Woermann transported several hundred Hereros to Swakopmund for forced labour.