Dutch startup Orange Quantum Systems (OrangeQS) has closed a €12 million ($13.8m) oversubscribed seed round.

The funding round is the largest raised by a quantum computing company in the Netherlands.

Founded in 2020 and headquartered in Delft, the Netherlands, OrangeQS has been developing quantum chip testing tools to help eliminate testing bottlenecks and support growth in the quantum chip manufacturing sector. The company said it will use the funds to build faster test machines that check quantum chips in days rather than weeks.

OrangeQS is also involved in the HectoQubit/2 project, a collaboration between Dutch quantum research institutions that aims to support the development of superconducting quantum computing in the Netherlands.

OrangeQS claims its flagship product, OrangeQS MAX, sets new industry benchmarks for high‑volume, standardized quantum‑chip testing and will be deployed by IQM in Espoo, Finland, to accelerate quantum chip development.

Its second product, OrangeQS FLEX, offers customizable chip-testing solutions for academic and industrial R&D teams and is already being used by a number of quantum research labs, including Karlsruhe Institute of Technology in Germany and the University of Napoli in Italy.

OrangeQS’ open-source operating system, OrangeQS Juice, is being tested at R&D labs in the US, Sweden, and the Netherlands.

“We are excited to see such strong support from the investment community,” says Garrelt Alberts, CEO of OrangeQS. “This funding round not only validates the critical importance of our technology but also enables us to accelerate our product roadmap, delivering the testing solutions essential to the emerging quantum computing industry as it advances toward building powerful quantum computers that benefit society.”