About
Horizon Quantum Computing (Nasdaq: HQ) is a Singapore-based quantum software company. It began trading on Nasdaq in March 2026 through a SPAC merger with dMY Squared Technology Group at a transaction value of roughly $503M, supported by $110M of PIPE financing that was 120% oversubscribed. The merger agreement with dMY Squared Technology Group (NYSE: DMYY) was announced in September 2025 and was expected to close in Q1 2026. IonQ and a Fortune 50 tech company took part in the PIPE. Horizon builds Triple Alpha, a full-stack quantum software development environment that automatically identifies opportunities for quantum acceleration in classical code, making quantum programming accessible without specialist knowledge. The company was founded in 2018 by Joe Fitzsimons and is backed by Entrepreneur First, Sequoia, and others. In December 2025, Horizon became the first quantum software company to operate its own quantum computer, located at its Singapore headquarters and built on a Maybell cryostat, Quantum Machines control, and a Rigetti processor.
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| Quantum Focus | software |
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