Dorma

Dorma is a German company that produces door technology systems and allied products. It was first founded as the Dörken & Mankel KG in Ennepetal, Germany, in 1908. The family business is managed by owner Karl-Rudolf Mankel in third generation. As part of succession planning, previous sole Dorma proprietor Karl-Rudolf Mankel transferred the majority of his shareholding to his daughters Christine and Stephanie in March 2009.