Swiss automatic-door manufacturer at Schwarzenburg holding 32 live VKF recognitions across Brandschutztüren mit Verglasung (14), Brandschutztüren (13) and vertical fire-rated glazing (5). Its position is unusual in the Swiss register: most fire-door holders make manual doorsets, whereas Gilgen certifies rated closures within automatic sliding and swing door systems, where the hold-open and release function has to be part of the approval.