“The ninth SPIDER Plenary Meeting took place from the 13th to the 14th December 2021. The meeting was held online with wide participation from the SPIDER consortium partners. During the meeting, partners representatives provided updates on their respective tasks as well as the planning for future work. Special emphasis was given to technical matters, regarding the consolidation of advancements into platform integration and validation pilots. Moreover, focus was also given to the outcome of the recent project review and upcoming dissemination and exploitation activities.”