Horizon Quantum Computing
IPOProgram quantum computers in classical languages.
Public · Singapore, Singapore · Founded 2020 · $20.1M raised
- Headquarters
- Singapore
- Employees
- 11–50
- Founded
- 2020
- Business Model
- B2B
- Website
- horizonquantum.com
- Total Funding
- $20.1M
- Last Round
- $18.1M Series AMar 2023
- Rounds
- 4
- Type
- Public
About
Horizon Quantum Computing develops software tools and an integrated development environment (Triple Alpha) that enable programmers to write quantum applications using classical languages like C and C++. Founded in 2020 and headquartered in Singapore, the company draws talent from Oxford, MIT, and Caltech to make quantum programming accessible to conventional software developers. In late 2025, Horizon became the first quantum software company to own and operate its own quantum computer.
Summary
Horizon Quantum Computing is a Developer Tools company based in Singapore, Singapore, founded in 2020. It has raised $20.1M in total across 4 rounds, most recently a $18.1M Series A round in Mar 2023. Investors include Abies Ventures, Sequoia Capital and SGInnovate.
Tech & App Stack
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Funding History
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Dec 2025
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Investors
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