Sygaldry Technologies raises $139 million in Seed and Series A funding rounds
Type: Financing · Technology: Data Center · Country: United States · Value: $139M · Announced: 2026-04-15
Sygaldry Technologies, a quantum and AI computing startup founded in 2024 by Chad Rigetti, Idalia Friedson, and Michael Keiser, secured $139 million in combined Seed and Series A funding. The Seed Round, led by Initialized Capital, raised $34 million, while the Series A round, led by Breakthrough Energy Ventures, contributed the remaining $105 million. Additional investors included Y Combinator, Rock Yard Ventures, the University of Michigan, Morpheus Ventures, Overmatch Ventures, and Switch Ventures. The startup is developing quantum-accelerated AI servers that integrate quantum hardware with classical chips to enhance AI training and inference speeds. Sygaldry's technology combines multiple qubit types within a fault-tolerant architecture, aiming to convert megawatts into intelligence more efficiently. The company's CEO, Chad Rigetti, emphasized the intersection of quantum computing and AI as the next computing frontier. The funding will support the commercialization of Sygaldry's servers, which are designed to accelerate classical AI algorithms and introduce quantum-native AI approaches.
Counterparties
- Y Combinator (Investor)
- Sygaldry Technologies (Borrower)
- Initialized Capital (Investor)
- University of Michigan (Investor)
- Rock Yard Ventures (Investor)
- Morpheus Ventures (Investor)
- Switch Ventures (Investor)
- Overmatch Ventures (Investor)
- Breakthrough Energy Ventures (Investor)