private · US

Sygaldry Technologies, Inc.

aka Sygaldry

computing · other

Stealth-emergence quantum-computing startup focused on building 'quantum-accelerated AI servers' designed to operate alongside classical AI data-center infrastructure with the goal of improving performance-per-watt for AI training and inference workloads. Co-founded and led by CEO Chad Rigetti (founder and former CEO of Rigetti Computing through his December 2022 departure) and co-founder Michael Keiser. Disclosed 2026-05-16 the closing of a $139M USD aggregate fundraise: $105M USD Series A (March 2026) led by Breakthrough Energy Ventures, plus $34M USD Seed led by Initialized Capital. Disclosed syndicate also includes Y Combinator, In-Q-Tel, IQT, University of Michigan, QDNL Participations, Expeditions Fund, 468 Capital, Morpheus Ventures, WTI, Overmatch Ventures, RRE Ventures, Rock Yard Ventures, and Switch Ventures. Hardware modality, qubit count, fidelity benchmark, processor roadmap, deployment customer, and commercial timeline not yet disclosed at run time (primary_modality therefore = other pending technical disclosure; Chad Rigetti's prior superconducting background at Rigetti Computing may be indicative but is not confirmed by the announcement).

First tracked 2026-05-18

EVENT TIMELINE View all 1 event involving Sygaldry Technologies, Inc. →

2026-05-167FUNDING · OTHSygaldry Technologies, the new venture of Rigetti Computing founder Chad Rigetti , discloses $139M USD aggregate raise (Seed + Series A) to build quantum-accelerated AI servers, with $105M USD Series A led by Breakthrough Energy VenturesCAL·1