GreenSign certified

The GreenSign certification is awarded by InfraCert - Institute for Sustainable Development in the Hotel Industry.

GreenSign certified Hotels

GreenSign is an established sustainability certificate for the hotel industry. GreenSign certified hotels were examined in 8 core areas during the certification process by InfraCert - Institute for Sustainable Development in the hotel industry. The certification takes place in 5 levels, which are assigned after evaluating the questions in the GreenSign certification catalog. The hotel is then checked by an independent expert during an audit.

GreenSign certified Logo
GreenSign certified

With the GreenSign certified seal, you can recognize the GreenSign certified hotels in the hotel search on In the detailed information you will also find the respective level of the hotel and the sustainability barometer, which shows the sustainability performance in the individual areas of the certification in detail.

Overview of GreenSign Levels

Greensign Level 1
Sustainable basis

The first approach to the sustainability concept is already made.

Greensign Level 2
Sustainability on the way

The hotel has already implemented the sustainability concept.

Greensign Level 3
Exemplary sustainability

The sustainability concept is implemented and in force in almost all hotel day-to-day activities.

Greensign Level 4
Outstanding sustainability

The hotel performs most of the core criteria of sustainable business.

Greensign Level 5
sustainability professional

The sustainability concept is fully integrated in all business processes.

Unique! The GreenSign sustainability barometer

The sustainability barometer gives hotel guests a transparent overview of the sustainable management of each hotel in the individual core areas of certification, both on site and online and at

GreenSign Nachhaltigkeitsbarometer

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