SWI Group’s €20bn AiOnX data centre platform adds 330MW UK site to power Europe’s AI and cloud infrastructure

Alternative investment firm SWI Group, formed through the merger of Stoneweg Group and Icona Capital, has announced a major expansion of its hyperscale data centre footprint with a new 330MW facility in the UK. The site will be located at Sutton-in-the-Isle, Cambridgeshire, strategically placed to serve the high-growth AI and enterprise cloud ecosystem within the so-called “Golden Triangle” that links London, Oxford, and Cambridge. In parallel, the group has officially rebranded its entire digital infrastructure portfolio under the AiOnX banner, unifying five hyperscale data centre sites across Europe into one cohesive platform.

The Cambridgeshire buildout marks the group’s first UK entry and is expected to rank among the largest hyperscale data centres in the country upon completion. The new campus will be integrated into AiOnX’s broader European platform, which includes facilities in Ireland, Spain, Italy, and Denmark. Altogether, the five AiOnX assets are projected to provide 2GW of total capacity and require over €20 billion in capital investment, positioning SWI Group as one of Europe’s most ambitious data centre developers at a time of surging artificial intelligence and cloud compute demand.

How does the Cambridgeshire data centre position SWI Group within the UK’s AI-driven infrastructure corridor?

The newly announced UK site is strategically located between Cambridge and Peterborough and will serve one of the most advanced regional innovation corridors in Europe. Often referred to as the “Golden Triangle,” this zone encompasses a high concentration of AI research labs, academic institutions, biotech clusters, and enterprise cloud users. By locating the 330MW campus in Cambridgeshire, SWI Group aims to capture rising demand from AI model training environments, sovereign cloud operators, and hyperscale compute tenants seeking ultra-low-latency, power-dense deployments.

The project aligns with broader UK government goals to attract AI infrastructure investments and support emerging digital economies. With hyperscale capacity increasingly viewed as a national infrastructure asset, the facility is expected to garner attention from both tenants and policymakers. Market observers interpret the siting decision as a strong signal of SWI Group’s intent to become a key player in high-value compute hosting tied to Europe’s AI industrial strategy.

What makes the AiOnX data centre platform one of Europe’s most capital-intensive digital infrastructure bets?

SWI Group’s AiOnX strategy reflects a pan-European investment vision aiming to consolidate regionally fragmented data centre developments into a single, high-capacity digital backbone. The platform includes five hyperscale campuses distributed across leading compute corridors, each aligned with local enterprise demand and national innovation agendas. In total, the AiOnX portfolio will scale to 2GW of capacity, requiring capital expenditure in excess of €20 billion. This places it on par with other top-tier infrastructure platforms in the United States and East Asia, though few European players have matched this scale with geographic breadth.

The existing sites include the Kildare Innovation Campus in Ireland, which is currently under active development; the Alcobendas Innovation Campus in Madrid, Spain; the Settimo Innovation Campus near Milan, Italy; and the Varde Innovation Park in Denmark. All except Ireland remain in pre-development phases, including the newly announced Cambridge Innovation Campus in the UK. The deliberate geographic distribution enables operational redundancy, energy mix diversification, and cross-border regulatory compliance—features increasingly demanded by hyperscale tenants deploying across the European Economic Area.

Institutional investors and infrastructure-focused strategists have noted that the AiOnX platform aligns with high-growth demand categories including generative AI, cloud-native enterprise software, and sovereign data policies. The platform’s total buildout is designed to accommodate next-generation hardware racks, liquid-cooled systems, and AI-accelerated workloads.

What are expert and investor perspectives on the platform-wide branding under the AiOnX identity?

The rebranding of the five facilities under the AiOnX identity reflects a broader industry trend toward consolidation and brand uniformity in hyperscale digital infrastructure. Market participants view unified branding as critical to attracting global cloud tenants, institutional co-investors, and sovereign technology partnerships. SWI Group’s decision to drop legacy site-level identifiers in favor of a single platform name is interpreted as both a marketing and strategic move, allowing it to compete alongside established multinationals in the hyperscale arena.

While direct analyst attributions have not been cited, institutional sentiment suggests growing demand for branded platforms capable of offering continent-wide capacity with consistent service-level agreements, energy sourcing transparency, and geopolitical agility. The AiOnX strategy positions SWI Group to benefit from anchor tenant contracting opportunities, especially as leading hyperscalers seek deployment-ready campuses within multiple regulatory environments.

Additionally, the internal €50 million minority stake acquisition by SWI Group’s own Stoneweg Europe Stapled Trust provides a confidence signal to outside investors, indicating robust internal valuation support and long-term thesis alignment between development and capital allocation teams.

How does SWI Group leverage its broader alternative investment platform to support the AiOnX strategy?

SWI Group operates across multiple verticals including real estate, credit markets, and financial structuring. With over €10 billion in assets under management and more than 350 employees across 26 global offices, the group is known for executing regionally embedded investment strategies. This approach enables it to secure land positions, navigate permitting processes, and structure project financing more efficiently than single-sector operators.

The AiOnX data centre platform fits into SWI Group’s broader mission by offering infrastructure exposure that complements its real estate and credit strategies. Through its established ground presence in Italy, Spain, and other jurisdictions, the firm can act quickly on strategic land deals and grid connections. Moreover, its internal teams bring the ability to blend infrastructure debt, co-GP structures, and institutional syndication into a single platform offering—enhancing scalability while managing risk.

By positioning AiOnX as a flagship vertical, SWI Group is likely to pursue strategic capital partnerships, including sovereign wealth funds, infrastructure private equity, and pension capital—all of which are increasing allocations to digital infrastructure amid rising global AI demand.

What are the projected timelines for operational rollout and tenant onboarding across AiOnX sites?

While commissioning timelines vary by geography and permitting status, most AiOnX sites are in pre-development or development stages. The Kildare Innovation Campus in Ireland is furthest along and expected to begin onboarding tenants within the next 18 to 24 months. The Cambridgeshire site, given its early-stage announcement and regulatory lead time, is likely to follow a 24 to 36-month trajectory toward full-scale operations, depending on energy access and construction speed.

The other campuses—in Spain, Italy, and Denmark—are expected to be developed in parallel phases to capture overlapping waves of AI and cloud investment over the next five years. Analysts anticipate a surge of capacity contracting activity beginning in late 2026, as hyperscale buyers seek guaranteed availability in light of escalating power and land constraints across the continent.

Institutional stakeholders are closely watching SWI Group’s delivery timelines, as execution speed and interconnection readiness will determine the success of tenant conversion and the platform’s valuation multiple.

How will the AiOnX strategy shape the future of sovereign-scale AI infrastructure development in Europe?

The AiOnX platform is poised to play a pivotal role in Europe’s effort to develop sovereign-scale AI infrastructure, especially as policymakers and enterprise leaders push for digital independence from non-EU infrastructure providers. With its cross-border footprint, renewable energy compatibility, and strategic locations, AiOnX could emerge as a go-to provider for secure AI compute environments tailored to local data governance standards.

Analysts expect SWI Group to enhance the platform further with dedicated AI training modules, sovereign cloud zones, and sustainability-linked tenant structures. The branding consolidation and geographic diversity offer clear advantages for tenants looking to meet environmental, social, and operational thresholds required by institutional and public clients alike.

Looking ahead, AiOnX may become a platform-of-choice not only for commercial hyperscalers but also for pan-European public-private digital infrastructure programs designed to foster homegrown AI development and critical infrastructure sovereignty.