LEIDEN CRYOGENICS BV

Their core work

Leiden Cryogenics BV is a Dutch SME that designs and manufactures specialized cryogenic equipment — primarily dilution refrigerators and sub-Kelvin cooling systems — for research laboratories and scientific infrastructures. Based in Leiden, the historical birthplace of modern cryogenics, they supply the physical hardware that allows experiments to be conducted at temperatures approaching absolute zero, in the microkelvin and millikelvin range. Their equipment underpins fundamental physics research, quantum technology development, and the study of matter under extreme conditions. In H2020, they participated as a hardware contributor in large-scale European research networks requiring ultra-low temperature instrumentation.

What they specialise in

How they've shifted over time

In the earlier project (Spin-NANO, 2016–2019), Leiden Cryogenics contributed as a partner to quantum technology research involving nanoscale spin systems — a role focused on enabling emerging quantum experiments without recorded keyword specificity. By the time of EMP (2019–2023), the focus had shifted explicitly toward recognized research infrastructure: the project's keywords — matter under extreme conditions and ultra-low temperatures — describe the physical regime their equipment creates, suggesting the company moved from being a peripheral hardware supplier toward a named infrastructure partner within Europe's millikelvin research ecosystem. The trend indicates growing institutional recognition of their equipment as essential shared infrastructure, not just a commercial product.

Leiden Cryogenics is evolving from a project-level equipment vendor into a recognized node in European shared research infrastructure, making them an increasingly strategic partner for any consortium building quantum or low-temperature experimental capacity.

How they like to work

Leiden Cryogenics never leads projects — they join as a partner or participant, providing specialized equipment and technical expertise to consortia built around scientific goals rather than commercial ones. Despite only two projects, they engaged with 30 unique partners across 10 countries, which reflects participation in large, multi-node European research infrastructures rather than small bilateral arrangements. For potential collaborators, this means they are experienced in large-consortium dynamics but expect to play a defined technical role, not a coordination or management one.

Leiden Cryogenics has built a network of 30 unique partners across 10 countries from just two projects — an unusually wide reach for an SME with this level of activity, driven by their participation in large pan-European platform projects like EMP. Their network is predominantly European, centered on quantum physics and condensed matter research institutions.

What sets them apart

Leiden Cryogenics occupies a rare niche: they are one of very few commercial SMEs capable of manufacturing dilution refrigerators and microkelvin-range cryostats, placing them at the intersection of precision manufacturing and frontier physics research. Being based in Leiden — where Kamerlingh Onnes first liquefied helium — gives them both a credible heritage and proximity to leading cryogenics research groups. For consortium builders, they offer something most partners cannot: the physical hardware that makes extreme-condition experiments possible, backed by direct participation in the flagship European microkelvin infrastructure platform.

Highlights from their portfolio

• EMP
  European Microkelvin Platform is the primary pan-European shared infrastructure for millikelvin research, and Leiden Cryogenics' participation as a funded partner signals their role as a recognized hardware cornerstone of that ecosystem.
• Spin-NANO
  Participation in a Marie Curie training network on quantum spin systems shows their equipment is used at the frontier of quantum technology research and in the training of the next generation of quantum physicists.