Critical technologies are those that play a strategically important role in economic resilience, productivity and long‑term competitiveness. They are defined less by individual products and more by their function within the economy: enabling other sectors, shaping supply chains and influencing where value, skills and control are concentrated. As a result, they are increasingly viewed as foundational infrastructure rather than discrete industries.

These technologies typically sit upstream or mid‑stream in supply chains, translating research and development into platforms, components or systems that underpin a wide range of downstream applications. Their supply chains are often global, capital‑intensive and reliant on specialist inputs, highly skilled labour and cumulative know‑how. This creates significant leverage, but also concentration risk, as constraints or disruptions can have wide‑ranging impacts across multiple sectors.

As a cluster, critical technologies comprise a set of interrelated capabilities rather than a single vertical. They span enabling digital technologies, advanced physical and manufacturing technologies, and hybrid domains where digital and physical systems converge. The cluster also includes the functions required to move technologies from concept to scale, such as testing, validation, integration and specialist services.

The cluster is characterised by high knowledge intensity, long investment horizons and strong links between research, development and commercialisation. Collaboration, shared infrastructure and ecosystem depth are central to success, with public policy and mission‑led investment playing an increasingly influential role.