Grow sustainably with us!

GreenSign is the leading sustainability certificate for the hotel industry in Europe

Create sustainable experiences and inspire guests

Hoteliers are now faced with new challenges, as the expectations of guests, society and investors for a sense of responsibility and climate protection are increasing. Make a green mark now!

In Germany, GreenSign is the market leader as a sustainability seal for hotels. It is also established internationally with over 230 certified hotels in 14 countries.

Whether a start in sustainability or the desire for further development - with GreenSign we offer hoteliers a simple and long-term solution that effectively saves costs! The five-level certification system, which was built on international frameworks, is unique in the industry. Today, every hotel can start with its sustainability performance and we pave the ideal way for further development.

Use GreenSign to increase your cost and environmental efficiency, attract new groups of guests, counteract the shortage of skilled workers and market your hotel innovatively and attractively in the long term.


many advantages for hoteliers
  • Improved energy and environmental efficiency

  • Quality management

  • Image improvement

  • Optimized guest approach and opening up new guest groups

  • Strengthening employee satisfaction

  • More visibility on the web and in the media

  • Presence on and

  • Qualitative and quantitative growth

  • Large network and partnerships

  • Always up-to-date for the future

  • Numerous networking events and joint climate protection campaigns

and satisfied guests
zufriedene Gäste

The most important facts about GreenSign ...

  • Established sustainability certificate with integrated qualitative management system

  • Practical and especially developed for the hotel industry

  • Awarded by InfraCert - Institute for Sustainable Development in the Hotel Industry

  • The certification process starts with the completion of the criteria catalog

  • The total of 92 criteria encompass seven core areas for sustainable business (management and communication, environment, purchasing, regionalism and mobility, quality management and sustainable development, social and economic responsibility)

  • The integrated action plan offers ideal sustainability strategies to structure processes better and work more efficiently

  • An independent auditor checks the information on site

  • Depending on the commitment of the hotel, GreenSign is graded in levels 1 to 5

  • Hoteliers receive a qualified report / sustainability declaration

  • The certificate is valid for 3 years

  • It is possible to increase the GreenSign level with an improved sustainability performance

  • The costs depend on the size of the hotel

  • The sustainability barometer enables a transparent overview of the sustainable management of the hotel

  • An independent and high-ranking advisory board acts as a voluntary control and consulting body for the certification

  • In the GreenCommunity we network sustainable hoteliers with suitable partners (e.g. CO2 footprint, green electricity provider, etc.)

New at GreenSign

Schwarzwald Panoramahotel

Schwarzwald Panoramahotel

Hotel Oderberger Berlin

Hotel Oderberger Berlin

Hotel Schluister Park

Hotel Schluister Park

Waldhotel Stuttgart

Waldhotel Stuttgart

Many hotels already trust GreenSign!

Hoteliers about GreenSign:

a&o Hostels - everyone can travel

The price-performance ratio convinced us in the end, paired with a good and fast cooperation.

Oliver Winter, CEO

Lindner Hotels & Resorts - Not just better. Different

„This award is a special recognition for us. It reinforces our daily commitment to sustainability and responsible business. In the modern hotel industry, these are indispensable fields of activity, which we equate with our 100% guest satisfaction guarantee.“

Andreas Krökel, managing director Lindner Hotels AG

Toskanaworld - happiness and health

"We are proud that all houses of Toskanaworld are now certified with the GreenSign. Sustainable corporate management is particularly important to us and the transparency of GreenSign has convinced us."

Christian Lohmann, General Manager