Sygaldry Technologies

DeepTech · US

Builds quantum-classical servers to reduce the energy costs of AI data centers.

Founders

Chad Rigetti (United States · ♂) — A quantum computing veteran who built Rigetti Computing from Y Combinator through its Nasdaq IPO, then founded Sygaldry in 2024 to fuse quantum hardware into AI data-center servers.
Idalia Friedson (United States · ♀) — A quantum-policy expert and former Strangeworks CSO who co-founded Sygaldry in 2024 to bring quantum-accelerated AI servers to market.
Michael Keiser (United States · ♂) — An AI researcher who co-founded Sygaldry in 2024 to build fault-tolerant, quantum-native AI server architectures.

Date	Round	Amount
Apr 2026	Series A Sygaldry Technologies, founded by Rigetti founder Chad Rigetti, announced a $105M Series A led by Breakthrough Energy Ventures for quantum servers aimed at AI data centers.	$105M

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