The Foundation for Research and Innovation (IDEK) wishes to inform those interested in the Call for Proposals “Hop-on Facility” (Topic ID: HORIZON-WIDERA-2022-ACCESS-07-01). More specifically, the “Hop-on Facility” Invitation is a new tool, an innovative addition of the European Commission to the classic tools of the “Widening Participation & Strengthening the ERA” Program, which aims to enable Bodies from Widening countries to join already selected joint ventures under Horizon Europe Projects, which do not already include a body from these countries. (Further details in the greek text)