UK fusion supply chain opportunities open for SMEs as UKAEA launches global guide

The complex cabling, vacuum systems and precision engineering visible inside a fusion research facility reflect the breadth of supply chain demand that UK SMEs are now being invited to meet

(Image courtesy of UKAEA)

The UK Atomic Energy Authority has published a guide designed to help British small and medium-sized enterprises enter the global fusion supply chain as the sector enters a decade of rapid scale-up. With more than 68 private fusion companies now operating worldwide alongside major public programmes, and over £100 billion projected to flow into fusion development between 2026 and 2035, UKAEA’s Global Fusion Guide for SMEs sets out practical steps for businesses to collaborate with, and supply to, fusion developers across four regions.

UK fusion supply chain opportunities are forming now

The shift from laboratory research toward full demonstration power plants is changing how fusion developers source components and services. Rather than building everything in-house, organisations are turning to external suppliers across engineering, manufacturing, robotics, advanced materials, digital systems and specialist services. UKAEA’s guide makes clear that prior fusion experience is not a prerequisite. Businesses already operating in adjacent sectors may find their capabilities transfer directly into this market.

The guide maps demand against key technologies central to fusion plant design, including superconducting magnets and cryogenics, high power lasers, pulsed and continuous power supplies, advanced materials and manufacturing, robotics and remote handling, tritium and blanket technologies, heating and current drive, and advanced computing and artificial intelligence. Each represents a distinct area where SME capabilities are particularly well matched.

Tokamak scaling and reactor economics drive SME demand

A significant proportion of the projected £100 billion in fusion investment is expected to land on industrial systems, components and services rather than on pure research. UKAEA Fusion Futures Programme Manager Fanny Fouin stated that fusion represents long-term, high-value opportunities that UK SMEs are well placed to deliver. Naomi Mburu, Lead Analyst at Fusion Advisory Services, noted that access rather than capability is often the real barrier for businesses looking to enter the market, with entry points currently fragmented across portals, programmes and networks that vary by country and technology.

The guide directly addresses this fragmentation, giving businesses a structured way to understand how market access works across the UK, the United States, Europe and Asia. For SMEs weighing where to focus early business development effort, that structured regional overview reduces one of the most significant barriers the guide itself identifies.

Global routes to market covered, including STEP programme

UKAEA’s guide introduces major public and private programmes worldwide, including the UKAEA Group’s own STEP programme, short for Spherical Tokamak for Energy Production. Melanie Windridge, Co-Director of Fusion Advisory Services, highlighted that robust supply chains will be critical to fusion’s success, and that reliable information is what enables businesses to navigate the initial hurdles of market entry.

The guide advises businesses on first steps such as joining fusion clusters, attending supplier engagement events and applying for innovation funding. For businesses that want to increase their visibility to fusion developers directly, the Fusion Future supplier directory lists companies active across the sector’s core technology areas.

The Global Fusion Guide for SMEs is available to download free from ukaea.org.

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