Oncostellae was founded in 2013.
In 2014, Oncostellae’s R&D projects were initiated using private funds provided by the founders and a subvention granted by the Galician Agency for Innovation (GAIN) and the European Union (ERDF) for the development of the project Oncogalfarma within the framework Conecta Peme 2014/15.
In 2015 Inveready entered the company as a financial partner.
In 2016 Oncostellae received a loan (ENISA) from the Ministry of Industry, Commerce and Tourism. Further funding was provided for the project Neogalfarm (Conecta Pyme 2016/17) to a consortium formed by Oncostellae, Galchimia, Nanogap, AMSLAB.
In 2017 public and private investors including Xesgalicia, Unirisco and FiTalent/Everis joined the company as financial partners.
In 2018 Oncostellae received public funding from the Ministry of Science & Innovation within the program Retos-Colaboración 2017. Further funding was provided for the project IO4COLON within the framework of Conecta Pyme 2018-20 granted by the Galician Agency for Innovation (GAIN) and the European Union (ERDF).
In 2019 Oncostellae completed an internal financing round.