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Page Content Horizon Quantum Computing is a Singapore-based startup developing tools to simplify and accelerate the development of Quantum software applications. The firm is preparing for a special purpose acquisition company (SPAC) listing on the Nasdaq in early 2026. In December 2025, their estimated valuation was $503 million. ==Technology== The startup is developing a toolchain that transforms classical computing programs into accelerated quantum applications<ref>{{Cite web |title=Horizon Quantum - Technology |url=https://www.horizonquantum.com/technology |access-date=2025-12-19 |website=www.horizonquantum.com |language=en}}</ref>. This is done through automated algorithm synthesis that produces a high-level descriptions of quantum programs for a given task, which is then paired with an optimising complier that produces processor-specific executable representation. They have developed their own IDE, Triple Alpha, that allows developers to code, quantify, compile and deploy applications on quantum computers. ==Traction== In December 2025, Horizon Quantum Computing announced it's own self-assembled two-tonne quantum computer<ref>{{Cite news |date=2025-12-17 |title=Quantum software firm in Sβpore gets boost in real-world testing with its own quantum computer |url=https://www.straitstimes.com/business/quantum-software-firm-in-spore-gets-boost-in-real-world-testing-with-its-own-quantum-computer |access-date=2025-12-19 |work=The Straits Times |language=en |issn=0585-3923}}</ref>. This quantum computer would serve as a test bed for clients and its own solutions. ==Funding== In December 2025, Horizon Quantum and dMY Squared announced that they have entered into subscription agreements with investors for a $110 million PIPE financing<ref>{{Cite web |title=Horizon Quantum Computing Pte. Ltd. and dMY Squared Technology Group, Inc. Announce $110 Million PIPE Investment to Support Proposed Business Combination |url=https://www.horizonquantum.com/updates/news/horizon-quantum-computing-pte-ltd-and-dmy-squared-technology-group-inc-announce-110-million-pipe-investment-to-support-proposed-business-combination |access-date=2025-12-19 |website=www.horizonquantum.com |language=en}}</ref>. The startup raised their US$18.1 million Series A in 31 March 2023<ref>{{Cite web |title=Horizon Quantum |url=https://www.horizonquantum.com/updates/news/horizon-quantum-computing-raises-usd-18.1-million-series-a-to-advance-quantum-software-development |access-date=2025-12-19 |website=www.horizonquantum.com |language=en}}</ref>. A Seed+ round led by [[Sequoia Capital India]] was closed in June 2020<ref>{{Cite web |last=Punay |first=Nathanielle |date=2020-06-23 |title=IT startup Horizon Quantum Computing ups seed round to $4.5m {{!}} Singapore Business Review |url=https://sbr.com.sg/markets-investing/news/it-startup-horizon-quantum-computing-ups-seed-round-45m |access-date=2025-12-19 |website=sbr.com.sg |language=en}}</ref>. Horizon Quantum raised their Seed round in November 2018, which was lead by [[SGInnovate]]<ref>{{Cite web |title=Horizon Quantum |url=https://www.horizonquantum.com/updates/news/horizon-closes-seed-funding-round |access-date=2025-12-19 |website=www.horizonquantum.com |language=en}}</ref>.{{Startup/Funding history}} == References == {{Reflist}}
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