This upload includes the questionnaire for semi-structured interviews with stakeholders, as part of a case study done for the BioMonitor project. The data collected during the interviews are not publicly available as the dataset contains sensitive information of the organizations involved in the study. The interview participants work in EU-based organizations involved in the development and manufacture of forest products, especially of the following categories: construction materials, textiles, chemicals, bioplastics, and wood-based composites. About BioMonitor BioMonitor is an EU-funded project (biomonitor.eu) that aims to establish a sustainable and robust framework that different stakeholders can use to monitor and measure the bioeconomy and its various impacts in relation to the EU and its Member States. The BioMonitor consortium is composed of a team of universities, statistical and standardisation institutes as well as consultancies and data modelling experts. This work was supported by the BioMonitor project, which has received funding from the European Union’s Horizon 2020 Research and Innovation Programme under Grant Agreement N° 773297.