The former global concern Orenstein & Koppel was sold to Terex USA at the end of the 1990’s. Eventually the company was broken up and sold off. The Division ‚Mining‘ – large excavators – was sold to Bucyrus. The O&K excavators were rebranded under the name Bucyrus but kept their model description. In 2010 Bucyrus was sold to Caterpillar.
The Division O&K loaders, O&K excavators as well as O&K graders went to the CNH Global. Spare parts for O&K machines are therefore supplied by CNH (Case, New Holland).