Despite only being its 3rd edition, the QUANTUM MATTER international conference & expo (QUANTUMatter) has already become a reference event for communities involved in the study of quantum materials, quantum information and quantum technologies at large. This article reports on this meeting, which took place in Madrid, in June 2023, with 420 participants and keynote speakers from all areas of quantum technologies and quantum materials. The authors present a report on the Quantum Matter 2023 international conference and expo that took place in Madrid, on June 2023.