Birsfelden integrator holding VKF 13721 as a 2001 Fachfirma plus product recognitions 17294, 26756 and 31589, valid to the end of 2030. Its approved platforms are BÜRGI-ESSER IQ8, BÜRGI-ESSER FlexES and the hifire 4000 BMT — three panel families under one recognition, which is broader coverage than most Swiss integrators carry.