This is a file collection as supplementary material for the paper Advancing quantum technology workforce: industry insights into qualification and training needs, doi 10.1140/epjqt/s40507-024-00294-2. It consists of: Interview guide: questions and more as guideline for the interviews conducted for the industry needs analysis documented in the publication. Interview transcript extracts: anonymised phrases from the interviews that are given as quotes (in a shortened/liguistically smoothed out form) in the publication as well as further phrases that are refered in the results sections of the publication. Dataset of the follow-up survey The results of this study were also used to update the European Competence Framework for Quantum Technologies Version 2.5, which is documented in Extending the European Competence Framework for Quantum Technologies: new proficiency triangle and qualification profiles, doi 10.1140/epjqt/s40507-024-00302-5. In an additional sheet, the three draft versions of qualification profile descriptions (v2.1, v2.2, v2.3) are provided.