Created in 2006 (Switzerland), QUESTOR own 46 sister brands and 422 competing brands. The QUESTOR brand is owned by dorma+kaba, a company listed in Zurich. The International Securities Identification Number (ISIN) of dorma+kaba is CH0011795959. QUESTOR is part of the Business Services activity sector.

QUESTOR is a brand of dorma+kaba (DOKA) Sustainability

Here is the evolution of interest in dorma+kaba "sustainability" criteria around the world over the past five years. The graph shows the evolution of the search rate over time, where the value 100 indicates the week with the most searches.
What is the brand's web response on its sustainability
Result of Google's query: "QUESTOR sustainability"
Sustainability -> Share price