Portugal to become Europe's largest American AI hub with $40 billion US tech investment by 2031

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Portugal is positioned to receive more than $40 billion in US tech investment by 2031, establishing itself as Europe's primary destination for American AI infrastructure. The announcement comes as Google's Nuvem transatlantic cable connects, with over 2.6 GW of data center capacity under development including the massive Start Campus project in Sines.

Portugal Emerges as Europe's Leading Hub for American AI Infrastructure

Portugal is set to attract more than $40 billion in US tech investment by 2031, transforming the nation into Europe's largest concentration of American AI infrastructure investment, according to U.S. Ambassador to Portugal John Arrigo . The announcement came during a ceremony marking the successful connection of Google's new Nuvem transatlantic cable, which Arrigo described as "the clearest sign" of a deepening partnership between the two nations

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. This massive influx positions Portugal at the forefront of Europe's digital transformation, raising questions about whether other European nations will follow suit or risk falling behind in the global AI race.

Source: ET

Source: ET

Massive Data Center Capacity Drives AI Infrastructure Growth

The $40 billion tech investment wave is anchored by substantial data center capacity development across Portugal. The country currently has more than 2.6 GW of data center capacity under development, with the Start Campus project in Sines leading the charge

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. Located south of Lisbon, the 1.2-gigawatt Start Campus represents one of Europe's most ambitious digital infrastructure projects and is backed by U.S. investment firm Davidson Kempner

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. This scale of development signals Portugal's commitment to becoming a critical node in global AI operations, providing the physical backbone needed to support next-generation artificial intelligence applications.

Strategic Partnership Between Trusted U.S. Allies Shapes Europe's Digital Future

The United States already ranks as Portugal's third-largest foreign investor, with nearly $20 billion in investment stock spanning AI, energy, agriculture, and tourism sectors

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. Ambassador Arrigo emphasized that Portugal's sovereign cloud framework strikes a critical balance—remaining open enough to attract partners like Google while maintaining sufficient discipline to protect national interests. He urged Europe to follow Portugal's example and build its digital future with trusted U.S. allies rather than attempting to develop capabilities in isolation

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. "This is exactly the model Europe needs right now," Arrigo stated, framing the choice not as one between sovereignty and partnership, but between building with allies or falling behind competitors. The successful deployment of the transatlantic cable infrastructure underscores how physical connectivity enables the flow of data and investment that powers modern AI systems. For tech companies and policymakers watching this development, Portugal's approach offers a blueprint for attracting major AI infrastructure while maintaining regulatory oversight—a balance many nations struggle to achieve.

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