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ByNN Desk
Sygaldry Raises $139M to Put Quantum Computers Inside AI Data Centers
Ann Arbor-based Sygaldry Technologies has raised $139 million across two rounds to build quantum-accelerated servers designed to run alongside classical data center infrastructure, targeting the growing energy and cost problem at the heart of large-scale AI.
The capital will be used to accelerate commercialization of research-driven technologies, with a focus on scaling advanced computing applications beyond lab environments.
Ann Arbor-based Sygaldry Technologies has raised $139 million across two rounds to build quantum-accelerated servers designed to run alongside classical data center infrastructure, targeting the growing energy and cost problem at the heart of large-scale AI.
The financing is structured as a $105 million Series A led by Breakthrough Energy Ventures, which closed in March 2026, plus a previously undisclosed $34 million seed round led by Initialized Capital that closed in August. Additional investors include Y Combinator, Rock Yard Ventures, In-Q-Tel (IQT), the University of Michigan, QDNL Participations, Expeditions Fund, 468 Capital, Morpheus Ventures, WTI, Overmatch Ventures, RRE Ventures, and Switch Ventures.
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Sygaldry was co-founded by Chad Rigetti, who previously founded Rigetti Computing in 2013 and took it public via SPAC in 2022 before departing, alongside Idalia Friedson and AI scientist Michael Keiser.
Its core thesis is that quantum hardware can deliver meaningfully better performance-per-watt for AI workloads than Nvidia GPUs. Sygaldry’s server architecture integrates multiple qubit types within a single fault-tolerant design to accelerate AI training and inference, while its software is built to slot into tools that AI researchers already use. The longer-term roadmap involves building quantum-native algorithms that go beyond accelerating classical workflows.
The macro backdrop Sygaldry is betting on: an estimated $5.2 trillion in capital expenditure will be required by 2030 to meet global AI compute demand, including roughly 125 gigawatts of new power generation capacity. Rigetti’s stated goal is to have machines in commercial production delivering quantum speedup for AI workloads by the end of the decade.
Sygaldry operates out of Ann Arbor and San Francisco.
The news is based on publicly available information. NervNow has not verified the details independently.
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