Move2THz is a European Union-funded research initiative aimed at transforming the landscape of high-frequency semiconductor technology by creating a fully integrated European ecosystem for Indium Phosphide (InP)-based platforms optimized for sub-terahertz (sub-THz) and beyond applications. The project will tackle the present limitations of InP technology—namely its cost, scarcity, and manufacturing constraints—by establishing a groundbreaking InP-on-silicon (InPoSi) global standard that enables larger wafer sizes and compatibility with conventional CMOS manufacturing. By doing so, Move2THz seeks to make InP technology commercially viable and sustainable for mass-market uses such as high-speed wireless communication, imaging, sensing, and 6G systems. Strengthening Europe’s semiconductor sovereignty and competitiveness, the project also aims to reduce the ecological footprint of InP production and support the adoption of next-generation high-frequency applications across industries. It is implemented by a consortium of 27 partners from multiple European countries under Horizon Europe and the Chips Joint Undertaking with a total budget exceeding €40 million.