B.A.S.E. GmbH plans, supplies, installs and services smoke extraction and ventilation systems for lift shafts and lobbies, including dampers, closures and retrofits to existing buildings. The company holds the RAL-Gütezeichen through membership of the Gütegemeinschaft Rauch- und Wärmeabzugsanlagen e.V., whose members are audited annually by independent fire safety experts. It operates from Planegg near Munich with a second branch near Hamburg.