Cri/oSuite® System Design
In‑house software tool for simulating and optimizing I/O design and thermal budgeting.


Startup · Netherlands
HQ Delft, NetherlandsFounded 2016
Discover Delft Circuits' superconducting Cri/oFlex cabling for high-density quantum I/O with lower thermal load and integrated filtering.
In‑house software tool for simulating and optimizing I/O design and thermal budgeting.
Flex‑to‑flex connector offering ultra‑high density and modular configuration.
Newest unveiled first. Open a product for its milestone timeline, components and sources.
| Announced | Stage | Amount | Valuation | Lead investors | Other investors | Confidence |
|---|---|---|---|---|---|---|
| Dec 3, 2025 | Series A | $9.3M | — | — | DeepTechXL, High-Tech Gründerfonds | Confirmed |
| Sep 7, 2023 | Series A | Undisclosed | — | DeepTechXL | — | Reported |
| Apr 14, 2021 | Seed | Undisclosed | — | — | High-Tech Gründerfonds | Reported |
Totals add known amounts using recorded USD conversions where available; other currencies are shown separately. A ~ marks an estimated amount.
Sixth-Domain · Supports Organization · country, Organization · kind
“{"country": "Netherlands", "hq_iso2": "NL", "id": "163f1a28-e689-4e83-aeee-2a0201b58d69"}”
Crunchbase · Supports Organization · hq city, Organization · linkedin url, Organization · x url
“hq_city: Delft”
Delft Circuits · Supports Organization · description, Organization · name, Organization · website
“Discover Delft Circuits' superconducting Cri/oFlex cabling for high-density quantum I/O with lower thermal load and integrated filtering.”
LinkedIn · Supports Organization · founded year, Organization · hq city, Organization · linkedin url
“founded_year: 2016”
Delft Circuits · Supports System
“Flagship Effortless upgrading or immediate scale-up. Up to 256 channels HD SMP connectors.”
Delft Circuits · Dec 3, 2025 · Supports Funding round · amount
“an €8 million extension of the company’s previous financing round”
The Quantum Insider · Sep 7, 2023 · Supports Funding round
“DTXL5 – a 100 M€ deep tech venture capital fund – has invested €6.3 million in Delft Circuits Series A.”
CB Insights · Supports Funding round
“4/14/2021 Seed VC”
Quantum Computing Report · Supports Funding round
“€8 million ($9.3 million USD)”
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