Professional auditing of your GreenSign certification

When deciding on a GreenSign sustainability certificate, the hotelier expects a high quality standard. At InfraCert, we meet this with our comprehensive and scientifically elaborated criteria catalog.

As a second step towards the highest possible quality assurance, the examination by qualified InfraCert employees or external auditing partners takes place. After the auditor has visited your hotel, a test report with the assessment and confirmation of your GreenSign level as well as recommendations for the further development of the company's sustainability activities follows.

Control Union Certifications Germany (CUCG) is an independent Berlin-based certification company that belongs to the globally operating Control Union Group, with around 100 offices in over 80 countries worldwide, and is accredited by DAKKS against ISO 17065. The CUCG has many years of experience in auditing (testing) and certifying many different sustainability standards, including EU organic, GSTC, FSSC 22,000, BRC, RSPO SCC, UTZ, GOTS or FSC (

Offering solutions to implement sustainability criteria, traceability, due diligence systems, transparency and risk minimization along global supply chains from the origin to the end consumer is one of the core competencies of the CUCG.