
53 hotels in Germany hold GreenSign certification. Each one is audited by an outside body, on a schedule it does not set itself.
Wikimedia CommonsAlthoff Grandhotel Schloss BensbergThis luxury grand hotel is housed in a baroque castle in Bergisch Gladbach. It offers high-end accommodations and professional facilities with panoramIndependently certified
Wikimedia CommonsSheraton Offenbach HotelSituated in the center of Offenbach near the Main River, this full-service hotel offers modern accommodations. It is well-positioned for travelers visIndependently certified
Wikimedia CommonsThe Lakeside Burghotel zu StrausbergHoused in an English-style castle building, this hotel overlooks Lake Straussee. It features historic architectural elements and extensive spa facilitIndependently certified
Wikimedia CommonsA&O Hostel Berlin MitteThis large budget hostel and hotel is centrally located in Berlin’s Mitte district. It provides functional accommodations and shared facilities for trIndependently certified
Wikimedia CommonsThe Westin Grand BerlinThis luxury landmark hotel is located on the historic Friedrichstraße in central Berlin. It features refined accommodations and high-end wellness faciIndependently certified
Wikimedia CommonsHotel GrenzfallAn inclusive hotel situated near the Berlin Wall Memorial. It features modern accommodations and a spacious garden, operating as a social enterprise fIndependently certified
Wikimedia CommonsA&O Hostel Köln NeumarktSituated in the central Neumarkt district of Cologne, this budget hostel and hotel provides practical accommodations. It offers a mix of private and sIndependently certified
Wikimedia CommonsBest Western Hotel Kantstrasse BerlinA well-known brand hotel located in the Charlottenburg district of Berlin. It offers modern city accommodations close to the Kurfürstendamm shopping sIndependently certified
Wikimedia CommonsAZIMUT Hotel Berlin KurfürstendammA centrally located hotel on Berlin’s famous Kurfürstendamm shopping street. It offers modern rooms and easy access to the city’s major retail and culIndependently certifiedGreenSign scores a hotel across categories spanning management, building services, purchasing, food, social conditions and guest communication, and awards one of five levels. Assessment starts from a documented self-audit and is verified by InfraCert, with on-site checks at the higher levels. The tiering is the useful part: the level is on the certificate, so it distinguishes a hotel that has just started from one several cycles in.
The lower levels are reachable largely on documentation and policy, so a level-one certificate is a weaker signal than the badge alone suggests — the level matters more than its presence. It is also concentrated in German-speaking markets, so it is not comparable in coverage to Green Key.