TRISTAN’S overarching aim is to expand, mature and industrialize the European RISC-V ecosystem so that it is able to compete with existing commercial alternatives. This will be achieved by leveraging the Open-Source community to gain in productivity and quality. This goal will be achieved by defining a European strategy for RISC-V based designs including the creation of a repository of industrial quality building blocks to be used for SoC designs in different application domains (e.g. automotive, industrial, etc.). The TRISTAN approach is holistic, covering both electronic design automation tools (EDA) and the full software stack. The broad consortium will expose a large number of engineers to RISC-V technology, which will further encourage adoption. This ecosystem will ensure a European sovereign alternative to existing industrial players. The 3-year project fits in the strategy of the European Commission to support the digital transformation of all economic and societal sectors, and speed up the transition towards a green, climate neutral and digital Europe. This transformation includes the development of new semiconductor components, such as processors, as these are considered of key importance in retaining technological and digital sovereignty and build on significant prior investments in knowledge generation in this domain. Development strategies leveraging public research funding that exploit Open-Source have been shown to boost productivity, increase security, increase transparency, allow better interoperability, reduce cost to companies and consumers, and avoid vendor lock-ins. The TRISTAN consortium is composed of 46 partners from industry (both large industries as well as SMEs), research organizations, universities and RISC-V related industry associations, originating from Austria, Belgium, Finland, France, Germany, Israel, Italy, the Netherlands, Poland, Romania, Turkey and Switzerland.