Quandela
Quandela is a French quantum computing company building photonic quantum computers and providing cloud-accessible quantum services.
Last updated October 23, 2026
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Overview
Quandela is a French deep-tech company specializing in photonic quantum computing. Founded in 2017 as a spin-off from the Centre for Nanoscience and Nanotechnology (C2N) in Palaiseau, near Paris, the company develops quantum computers that use single photons as qubits. Quandela's core technology is based on semiconductor quantum dots that emit single photons, which are then manipulated using integrated photonic circuits. This approach allows the company to build scalable, room-temperature-operable quantum processors, distinguishing it from superconducting and trapped-ion competitors that require extreme cooling. Quandela offers a full-stack solution: it designs and manufactures its own quantum hardware, develops the accompanying software and middleware, and provides cloud access to its quantum computers through its platform. The company's flagship product line includes the Ascella and MosaiQ photonic quantum computers, as well as the Perceval software framework for programming photonic quantum computers. Quandela also offers quantum-as-a-service (QaaS) through partnerships with cloud providers and high-performance computing centers. Quandela serves a diverse set of customers, including research institutions, universities, and industrial partners in fields such as chemistry, finance, and logistics. The company has raised significant venture capital funding to scale its technology and manufacturing capabilities. It has established partnerships with major European research initiatives and is a key player in France's national quantum strategy. Quandela's headquarters and manufacturing facilities are located in Palaiseau, France, with additional offices in Canada and Germany. As a private company, Quandela is not listed on any stock exchange. It continues to advance its technology roadmap, aiming to deliver increasingly powerful photonic quantum computers and to democratize access to quantum computing through its cloud platform.
History
Quandela was founded in 2017 as a spin-off from the Centre for Nanoscience and Nanotechnology (C2N) in Palaiseau, France. The founding team included Valerian Giesz, Niccolo Somaschi, Pascale Senellart, and Shane Mansfield, who brought expertise in semiconductor quantum dots and photonic quantum technologies. The company's early work focused on developing single-photon sources based on quantum dots, a technology pioneered at C2N. In 2019, Quandela launched Perceval, an open-source software platform for programming photonic quantum computers. This marked the company's expansion into the software layer of the quantum stack. In 2020, Quandela introduced its first photonic quantum computer, Ascella, which was made available via the cloud. Ascella uses single photons generated by quantum dots and manipulated with integrated photonic circuits. In 2022, Quandela raised €15 million in a Series A funding round to accelerate the development of its quantum computers and expand its team. The company also opened offices in Canada and Germany to support its international growth. In 2023, Quandela announced MosaiQ, a new generation of photonic quantum computers designed for scalability and higher performance. The company also deepened partnerships with high-performance computing centers and cloud providers to offer quantum-as-a-service. Quandela has been a key participant in France's national quantum strategy, contributing to the development of a domestic quantum ecosystem. The company continues to advance its technology roadmap, aiming to increase the number of qubits and improve error correction in its photonic systems. As of 2024, Quandela remains a private company, with its headquarters and manufacturing facilities in Palaiseau, France.
- 2023
Announced MosaiQ, a new generation of photonic quantum computers.
- 2022
Raised €15 million in Series A funding.
- 2020
Introduced Ascella, its first photonic quantum computer, available via cloud.
- 2019
Launched Perceval, an open-source software platform for photonic quantum computing.
- 2017
Founded as a spin-off from C2N in Palaiseau, France.
Products and positioning
Full-stack photonic quantum computing provider offering cloud-accessible quantum computers and software.
Ascella
Photonic quantum computer using single photons from quantum dots.
MosaiQ
Next-generation photonic quantum computer designed for scalability.
Perceval
Open-source software framework for programming photonic quantum computers.
Recent events
Quandela and KRIBB partnership for quantum biotech[2]
Reported:
Quandela expanded its global partnerships with KRIBB for quantum biotech, according to the source headline.
- Unconfirmed
Quandela seeks South Korean partners for photonic quantum computing[3]
Reported:
Quandela is seeking South Korean partners for photonic quantum computing, according to The Quantum Insider.
Sources3 sources
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