# Quantum Machines

Canonical page: https://technooptimist.io/companies/quantum-machines
Quantum Machines builds the control electronics that send pulses to qubits and read them out in real time. The Tel Aviv company, founded in 2018, says more than half of the world's quantum computing companies use its systems.

## In brief

- Says more than half of the world's quantum computing companies use its control systems; $280M raised.
- OPX1000 (2023) packs 64 outputs and 16 inputs in 3U; linked units aim at 1,000-plus-qubit machines.
- Sept 2026: first control firm to run an NVIDIA CUDA-Q program across live qubits and GPUs over NVQLink.

## Facts

- Founded: 2018
- Headquarters: IL
- Status: private
- Staff: ~200
- Raised: $220M
- Website: https://www.quantum-machines.co
- Frontiers: [Quantum](https://technooptimist.io/quantum.md) (Fridges, control & fabs)

## Programs

- [OPX1000](https://technooptimist.io/quantum/opx1000.md) (Quantum): Deploy. Shipping to labs and qubit makers; now linked to NVIDIA GPUs through NVQLink.

## Technical approach

- **Pulse processor: A classical computer beside the qubits**: Its Pulse Processing Unit builds pulses and runs logic in real time, so a measurement can change the next pulse within the same run.
- **QUA: A programming language for pulses**: Experiments are written in QUA at pulse level, or as gates through an OpenQASM 3 compiler, for any qubit type.
- **GPU link: Qubits wired to supercomputers**: NVIDIA's NVQLink ties the controller to GPUs and CPUs; a full qubit-to-processor round trip took about a microsecond in a 2026 demo.

## Open problems

- **Control for millions of qubits** (active research): Room-temperature racks need lines into the fridge for each channel; fault-tolerant machines will need far denser and cheaper control per qubit.
- **Microsecond feedback at scale** (active research): Error correction must read, decode and react within about a microsecond every round, for every logical qubit, as machines grow.

## Latest updates

- **13 Sep 2026**: Quantum Machines runs an NVIDIA CUDA-Q program end to end across live qubits and GPUs over NVQLink. At IEEE Quantum Week in Toronto, Quantum Machines showed a single CUDA-Q program running across live qubits, its pulse processor and NVIDIA GPUs and CPUs, linked by NVQLink. ([our story](https://technooptimist.io/stories/quantum-machines-runs-an-nvidia-cuda-q-program-end-to-end-across-live-5affba25.md) · [original source](https://thequantuminsider.com/2026/09/13/quantum-machines-makes-quantum-computers-easier-to-program-with-nvidia-cuda-q-and-nvqlink/))
- **17 Jun 2026**: Quantum Machines buys Hungary's PCB Engineering, its second European acquisition in six weeks. Quantum Machines acquired PCB Engineering, a Hungarian firm with about two decades of experience designing high-speed, high-density hardware for high-performance computing, and turned it into an R&D hub in Budapest. ([our story](https://technooptimist.io/stories/quantum-machines-buys-hungary-s-pcb-engineering-its-second-european-08306cb1.md) · [original source](https://thequantuminsider.com/2026/06/17/quantum-machines-acquires-pcb-engineering-and-opens-budapest-rd-hub/))
- **5 May 2026**: Quantum Machines acquires QHarbor, a TU Delft spin-off, and opens an R&D office in Delft. Quantum Machines bought QHarbor, a TU Delft spin-off that makes software for storing and visualising physics measurement data. ([our story](https://technooptimist.io/stories/quantum-machines-acquires-qharbor-a-tu-delft-spin-off-and-opens-an-r-80e443f4.md) · [original source](https://quantumcomputingreport.com/quantum-machines-acquires-qharbor/amp/))
- **25 Feb 2025**: Quantum Machines raises $170 million Series C led by PSG Equity. Quantum Machines raised $170 million, bringing its total to $280 million, in a round led by PSG Equity with Intel Capital and Red Dot Capital Partners. ([our story](https://technooptimist.io/stories/quantum-machines-raises-170-million-series-c-led-by-psg-equity-2b94bd00.md) · [original source](https://www.fortune.com/2025/02/25/quantum-machines-computing-startup-170-million-series-c-funding))
- **29 Aug 2023**: Quantum Machines introduces OPX1000, a 3U controller built to scale to 1,000-qubit quantum computers. Quantum Machines launched OPX1000, a control system with up to 64 output and 16 input channels in three rack units, built so that several units can be linked to run machines of 1,000 qubits and more. ([our story](https://technooptimist.io/stories/quantum-machines-introduces-opx1000-a-3u-controller-built-to-scale-to-1-0f4114d8.md) · [original source](https://www.prnewswire.com/news-releases/quantum-machines-introduces-opx1000---the-quantum-control-solution-for-large-scale-quantum-computing-301912436.html))

## Funding

| Date | Round | Amount | Post-money | Leads |
| --- | --- | --- | --- | --- |
| 25 Feb 2025 | Series C | $170M |   | PSG Equity |
| Sep 2021 | Funding round | $50M |   | Red Dot Capital Partners |

## Partners, customers and investors

- PSG Equity (investor): Led the $170 million Series C (2025).
- Intel Capital (investor): Joined the 2025 Series C.
- Red Dot Capital Partners (investor): Led the $50 million 2021 round; joined the Series C.
- NVIDIA (partner): NVQLink integrated into Quantum Machines' Orchestration Platform; joint CUDA-Q demo on live qubits (2026).
- Alice & Bob (customer): Control electronics for Alice & Bob's $50 million quantum lab in Paris, with Bluefors cryogenics.

## People

- Itamar Sivan, Co-founder & CEO
- Yonatan Cohen, Co-founder & CTO
- Nissim Ofek, Co-founder

---

The Techno Optimist tracks every frontier of technology, program by program: https://technooptimist.io/ (a Markdown version of any page: add .md to its URL; site map for agents: https://technooptimist.io/llms.txt).
Data API (JSON, realtime stream): https://technooptimist.io/developers. People read 5 pages free, then Reader $10/month; these Markdown pages are open to agents.