This is supplementary material for the manuscript entitled "Toward Business Models for a Meta-Platform: Exploring Value Creation in the Case of Data Marketplaces." This paper explores value creation of a meta-platform in the case of data marketplaces. We interviewed fourteen data-sharing consultants and six meta-platform experts. This data consists of : 1) an overview of participants of our twenty semi-structured interviews, 2) four possible scenarios of a meta-platform for data marketplaces, 3) the interview protocol, and 4) the relation between data structure and interview excerpts. The type of the data is a PDF document.