The file contains all publishers of journals listed in the Directory of Open Access Journals (DOAJ). On August 1, 2017, 9,621 journals were listed in the Directory of Open Access Journals (DOAJ). Only 32 publishers published more than 20 of these journals and thus have a quantitatively significant influence on Open Access. PLOS can not be found among them, but still has influence, but more qualitative than quantitative. These 32 publishers publish 2,950 journals, which are 31% of all journals listed in the DOAJ. At this date, the DOAJ reported 7,474 publishers, thus 0.43% of all DOAJ-listed publishers produced 31% of the journals. Of these 2,950 journals, 1,641 (56%) are in the hand of publishers who already dominate the market in the subscription model: e.g. Elsevier, Springer Nature (including BioMed Central, Frontiers), Wiley, SAGE, De Gruyter, Taylor & Francis, OUP, Wolters Kluwer). The data was gathered at August 1, 2017 using the Directory of Open Access Journals web interface. The total number of journals at this point of time was 9,621.