GIC chief executive Lim Chow Kiat (Image: GIC)
Singapore sovereign fund GIC and Australia’s Macquarie Asset Management have teamed with Claude chatbot maker Anthropic to establish a US-focused data centre platform, as the artificial intelligence boom fuels demand for purpose-built computing capacity.
The venture, called Theseus Infrastructure, will develop, operate and lease facilities to Anthropic under long-term agreements, the companies said Monday in a release. Funds managed by GIC and Macquarie will own the platform and provide most of the equity for each project.
The tie-up extends GIC’s relationship with Anthropic after the sovereign giant co-led the AI firm’s $65 billion Series H funding round in May, and comes three weeks after Macquarie completed its $40 billion sale of Aligned Data Centers.
“Demand for Claude continues to grow rapidly across businesses, developers, and consumers, and meeting that demand requires significant new compute,” the companies said.
Claude Capacity
The partners will jointly identify sites in the US, with Anthropic serving as anchor tenant at facilities tailored to its computing requirements. The San Francisco-based company will also cover electricity price increases that consumers might otherwise face as a result of the projects.
Macquarie Asset Management head Ben Way (Image: Macquarie)
The announcement disclosed no investment target, planned capacity, development schedule or ownership split between Macquarie and GIC. The structure combines the two investors’ infrastructure capital with long-term demand from one of the world’s leading AI companies.
Anthropic was founded in 2021 by former OpenAI employees including siblings Dario and Daniela Amodei, who serve as chief executive and president, respectively. The public benefit corporation introduced Claude in March 2023 as an AI assistant designed for conversational and text-processing tasks.
The Claude product family has since expanded to include the Claude Code programming agent and Cowork workplace tool, with Anthropic making its models available through Amazon Web Services, Google Cloud and Microsoft Azure. The company said in May that annualised revenue had crossed $47 billion.
GIC made a significant investment in Anthropic’s $13 billion Series F round in September 2025 before leading a $30 billion Series G alongside US fund manager Coatue in February at a $380 billion post-money valuation. The sovereign fund followed as a co-lead of May’s Series H, which valued Anthropic at $965 billion.
GIC also backed an AI services company established by Anthropic, Blackstone, Hellman & Friedman and Goldman Sachs in May to deploy Claude across mid-sized businesses. Theseus extends the relationship from corporate investment and AI distribution into the physical infrastructure supporting Anthropic’s models.
Digital Reload
GIC’s existing US data centre exposure includes a $15 billion-plus venture formed with Canada’s CPPIB and Equinix in 2024. The platform aims to add more than 1.5 gigawatts of hyperscale capacity, with GIC and CPPIB each holding 37.5 percent stakes.
The $936 billion Singaporean fund has also committed capital to Vantage Data Centers’ European and Asian platforms and formed a $329 million Brazilian venture with Alianza. Last year, GIC and Abu Dhabi’s ADIA backed a $1.6 billion investment in Vantage’s APAC business, including the purchase of a 300-megawatt Johor campus.
Macquarie in March teamed with Korean cloud specialist Gabia on a $420 million platform targeting more than 100MW of capacity. The venture’s first project is a 40MW facility in Ansan, south of Seoul.
In the US, Macquarie last year agreed to provide up to $5 billion in funding for Applied Digital’s high-performance computing pipeline. The programme includes support for the 400MW Ellendale campus in North Dakota and potential investment in more than 2GW of projects.
The Aussie manager’s latest build-up follows two of the sector’s biggest exits. Macquarie sold its majority stake in AirTrunk through a $16.1 billion transaction completed in December 2024, before closing the sale of Aligned to a BlackRock-led consortium last month.