Horizon Quantum Computing
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| Status | Active |
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| Website | https://www.horizonquantum.com/ |
| Vertical(s) | Quantum computing |
| Latest Funding Round | Series A |
| Year founded | 2018 |
| Headquarters | Singapore |
| Technology Readiness Level | Development (TRL 4-6) |
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[1]. 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[2]. This quantum computer would serve as a test bed for clients and its own solutions.
Accolades
List awards received by the startup here.
Funding
The startup raised their US$18.1 million Series A in 31 March 2023[3].
| Funding History | |
|---|---|
| Investor | Round |
| Sequoia Capital India | Series A |
| Tencent | Series A |
| SGInnovate | Series A |
| Pappas Capital | Series A |
| Expeditions Fund | Series A |
| Sequoia Capital India | Seed+ |
| SGInnovate | Seed+ |
| Abies Ventures | Seed+ |
| DCVC | Seed+ |
| Qubit Protocol | Seed+ |
| Summer Capital | Seed+ |
| Posa CV | Seed+ |
| Sequoia Capital India | Seed |
| SGInnovate | Seed |
| Abies Ventures | Seed |
| DCVC | Seed |
| Qubit Protocol | Seed |
| Summer Capital | Seed |
| Posa CV | Seed |
Note: This list is community-maintained and may be incomplete or contain inaccuracies.
See also
- List any other pages directly relevant to Horizon Quantum Computing
References
- ↑ "Horizon Quantum - Technology". www.horizonquantum.com. Retrieved 2025-12-19.
- ↑ "Quantum software firm in S'pore gets boost in real-world testing with its own quantum computer". The Straits Times. 2025-12-17. ISSN 0585-3923. Retrieved 2025-12-19.
- ↑ "Horizon Quantum". www.horizonquantum.com. Retrieved 2025-12-19.