Horizon Quantum
Code, compile and deploy quantum applications from classical languages.
40 employees · est. 2018 · Singapore, Singapore
Quantum Machines
Accelerating the Realization of Practical Quantum Computers
237 employees · est. 2018 · Claymont, United States
Quantum Machines is the larger of the two.
Side-by-Side Comparison
| Metric | Horizon Quantum | Quantum Machines |
|---|---|---|
| Founded | ||
| Founded | 2018 | 2018 |
| Headquarters | ||
| Headquarters | Singapore, Singapore | Claymont, United States |
| Employees | ||
| Employees | 40 | 237 larger |
| Industry | ||
| Industry | Hardware, IT, Quantum | Quantum |
| Funding Stage | ||
| Funding Stage | Series A | Series C |
| Total Funding | ||
| Total Funding | $21.60M | $363.00M |
| Funding Rounds | ||
| Funding Rounds | 3 | 7 |
| Services | ||
| Services | Development of tools for programming and accelerating code for quantum computers, Integrated Development Environment (IDE) for quantum programming | Quantum Computing Control and Electronics Solution from Room Temperature to Cryogenics |
| Target Customers | ||
| Target Customers | Developers interested in quantum computing, Quantum physicists, Researchers in quantum computing, Technology enthusiasts | Full-stack quantum computing vendors, HPC centers, and leading quantum research labs |
| Taxonomy | ||
| Taxonomy | Quantum Computing, Quantum Algorithms, Secure Quantum Computing, Programming Tools, Compilers, Quantum Computers, Quantum Information Processing, Quantum Software | Quantum Computing, Quantum Control, Quantum Orchestration Platform, Quantum Software, Quantum Hardware, Quantum Electronics, Quantum System Development, Quantum Technology, Engineering Solutions, Multidisciplinary Team, Electrical Engineering, RF Microwave Engineering, Algorithmics, Digital Signal Processing |
| Website | ||
| Website | horizonquantum.com | quantum-machines.co |
About Horizon Quantum
Horizon Quantum, a Singapore-based startup founded in 2018, aims to revolutionize quantum computing with its pioneering approach. The company's slogan, "Code, compile and deploy quantum applications from classical languages," encapsulates its mission to enable users to write programs in classical la...
About Quantum Machines
Quantum Machines, founded in 2018, is spearheading the evolution of quantum computing from its headquarters in the United States. With the slogan, "Accelerating the Realization of Practical Quantum Computers," the company is on a mission to revolutionize industries by harnessing quantum technology....
We will tell you when either one moves
BounceWatch watches Horizon Quantum and Quantum Machines for new funding, fast hiring, new executives and a change of software vendor. When one happens, we email you the same day.
Funding, hiring, leadership and stack changes at Horizon Quantum and Quantum Machines — by email.
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Compiled from the BounceWatch company index. We last looked at Horizon Quantum on 11 Jun 2025, and Quantum Machines on 20 Oct 2025. Where a field is blank here, it means we have not recorded it — not that the answer is zero. How we source and date this.