Quobly SAS, operating as Quobly, is a privately held French quantum computing company founded in 2022 and headquartered in Grenoble. It develops silicon-based quantum processors using established semiconductor manufacturing processes to enable scalable and manufacturable quantum systems.
In June 2026, the company closed a €115 million Series A round led by Bpifrance, STMicroelectronics and SEALSQ, with participation from ALIAD, the corporate venture arm of Air Liquide. The funding supports R&D, industrialization and commercial expansion, with a target of launching the first commercial product by the end of 2026.
Quobly maintains strategic partnerships in the semiconductor supply chain and previously operated under the name Siquance.
Also known as Siquance.
Second-quarter comparable growth accelerated; operating margin, recurring profit and cash flow improved while record investments and the DIG Airgas deal closed.
Investment funds R&D and industrialisation of silicon-based quantum processors, backing commercial launch targeted by end‑2026.
