Between December 2020 and February 2021, applications were accepted for integrating thematic digital research service providers into EOSC-Pillar. The project invited applications from institutions to submit and bring new thematic services to enhance the portfolio of EOSC-Pillar and EOSC. This offered a unique opportunity to connect with EOSC and to take part in the exciting EOSC-Pillar project. Selected service providers were offered free to use storage and computing resources, e.g. HPC and data storage for archiving provided for by the EOSC-Pillar partners. Successful applicants also received valuable support in integrating their service(s) into the national catalogues, and eventually the service catalogue of the European Open Science Cloud (EOSC).