ScienceOpen is a web-based platform, that hosts open access journals. It is freely accessible for readers, authors and publishers, and it generates its revenues via promotional services for publishers and authors' institutions. The organization is based in Berlin and has a technical office in Boston. It is a member of CrossRef, ORCID,[1] the Open Access Scholarly Publishers Association,[2] STM Association[3] and the Directory of Open Access Journals. The company was designated as one of “10 to Watch” by research advisory firm Outsell in its report “Open Access 2015: Market Size, Share, Forecast, and Trends.”[4]