Certificate
ERR 119107
GSN Gebäudesicherheit Nord GmbH
Holler Landstraße 82
DE 26135 Oldenburg
0441/35093-0
0441/35093-99
www.gsn-gmbh.de
info@gsn-gmbh.de
VdS 3403:2022-10
Installers of intruder alarm systems
Activity Area: 06, 14, 16-53, 56-59, 65, 99
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Updated at: 21.09.2026