DELFT CIRCUITS B.V.

Their core work

Delft Circuits is a Dutch deep-tech SME that develops cryogenic interconnection solutions — the specialized flexible cables and wiring needed to connect and control superconducting quantum processors operating at near absolute-zero temperatures. Their core product addresses a critical bottleneck in scaling quantum computers: as qubit counts grow, the wiring inside cryostats becomes a major engineering constraint. Through H2020 funding, they have worked on both their own cryogenic cable technology (CrioFlex) and contributed interconnection expertise to broader quantum computing and quantum materials initiatives.

What they specialise in

How they've shifted over time

Delft Circuits entered H2020 in 2020 with a strong hardware-engineering identity, focused on solving the physical wiring problem inside cryostats (cryogenic interconnection, microwaves, thermodynamics). Their early keywords reflect an engineering-first company building a tangible product for the quantum industry. By their later projects (AVaQus, MATQu), the focus broadened toward quantum processor architectures — annealing, simulation, and advanced materials — suggesting they moved from pure component supplier toward deeper integration with quantum system design.

Delft Circuits is evolving from a specialized cryogenic cable manufacturer toward a systems-level contributor in quantum computing hardware, positioning itself as essential infrastructure for whoever builds the next generation of quantum processors.

How they like to work

Delft Circuits balances leadership and partnership — they coordinated their flagship CrioFlex project (their largest at EUR 1.96M) while joining two research-driven consortia as a specialized participant. With 24 unique partners across 9 countries from just 3 projects, they engage in broad European networks rather than small bilateral efforts. This pattern suggests they are a sought-after specialist: research consortia invite them because nobody else provides what they make.

Across 3 projects, Delft Circuits has built a network of 24 partners spanning 9 countries — a remarkably wide reach for an SME with a short H2020 track record. Their base in Delft places them at the heart of the Dutch quantum ecosystem, with European-wide research connections.

What sets them apart

Delft Circuits occupies a rare niche: they are one of very few companies globally that manufactures cryogenic flexible wiring specifically designed for quantum computers. While many organizations research qubits or quantum algorithms, someone has to build the physical infrastructure inside the cryostat — and that is what Delft Circuits does. For any consortium working on superconducting quantum hardware, they bring a capability that is extremely difficult to source elsewhere.

Highlights from their portfolio

• CrioFlex
  Their flagship coordinated project (EUR 1.96M via SME-2 instrument) directly targeting the scalability bottleneck of quantum computer wiring — a strong validation of commercial potential.
• AVaQus
  Participation in a FET-funded quantum annealing project shows recognition by the research community as an essential hardware partner beyond their immediate product line.
• MATQu
  Involvement in a materials-for-quantum-computing project signals upstream expansion into the supply chain for quantum hardware components.