Refurbishing Existing Buildings: Balancing Energy Efficiency and Architectural Heritage

The sustainable development of existing buildings is becoming increasingly important, both from an environmental and economic perspective. Companies like Tucher Ingenieure GmbH – part of SIERA stand for innovative engineering solutions that combine energy efficiency with a respectful approach to historic building structures. As part of the global platform , Tucher Ingenieure brings together deep […]
ISO 45001 Certification: A Strategic Milestone in Occupational Safety

At TABERG Ingenieure GmbH – part of SIERA, occupational health and safety is not treated as a standalone obligation—it is a fundamental element that shapes how engineering solutions are planned, executed, and continuously improved. The successful certification according to DIN EN ISO 45001, awarded by the Institut für Auditierung und Zertifizierung GmbH (infaz), marks a […]