Expected Outcome: Proposal results are expected to contribute to the following expected outcomes: • A host of mature quantum sensing technologies and devices (TRL 6-7) in many different application sectors, with the goal of establishing a reliable, efficient supply chain including first standardisation and calibration efforts for rapid market uptake. Scope: Proposals should address the development of relatively mature quantum sensing technologies and single or network-operating devices that have the potential to find a broad range of new applications in transportation, precise localisation, health, security, telecommunications, energy, electronics industry, construction, mining, prospection, and much more. Proposals should demonstrate advanced prototypes of such sensing technologies that provide an unprecedented level of precision and stability, making new types of sensing, imaging and analysis possible. For rapid market uptake, they should target miniaturised, integrated, transportable quantum sensors and provide first plans for their further industrialisation through enhanced cost efficiency and user operability at higher TRL. In order to achieve the above, proposals should include relevant actors from the whole value chain (from materials to devices and to system integration aspects). They may also include, wherever relevant, activities and actors from metrology institutes that would provide measurement methods and/or standards, including for the development of quality assurance methods and for standardisation of the targeted quantum sensing technologies. Finally, proposals should also cover: (i) any additional support they may receive from relevant national, or regional programmes and initiatives; and (ii) contribution to the governance and overall coordination of the Quantum Technologies Flagship initiative. They should also contribute to spreading excellence across Europe; for example, through the involvement of Widening Countries. In this topic the integration of the gender dimension (sex and gender analysis) in research and innovation content is not a mandatory requirement.