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DefDex
Delft Circuits logo

Startup · Netherlands

Delft Circuits

HQ Delft, NetherlandsFounded 2016

Discover Delft Circuits' superconducting Cri/oFlex cabling for high-density quantum I/O with lower thermal load and integrated filtering.

WebsiteLinkedInX

Products5

Cri/oSuite® System Design

In‑house software tool for simulating and optimizing I/O design and thermal budgeting.

Maturity not rated

Flagship

A modular I/O system with HD SMP connectors.

Maturity not rated

KF25 port

A compact cabling kit for non-line-of-sight ports.

Maturity not rated

KF40 port

A flexible cabling kit for non-line-of-sight ports.

Maturity not rated

Tabbi/® connector

Flex‑to‑flex connector offering ultra‑high density and modular configuration.

Maturity not rated

Newest unveiled first. Open a product for its milestone timeline, components and sources.

Funding3 rounds · $9.3M

Disclosed
$9.3M
Latest
$9.3MSeries A · Dec 3, 2025

Totals add known amounts using recorded USD conversions where available; other currencies are shown separately. A ~ marks an estimated amount.

Sources10

Profile4

  1. 1

    Sixth-Domain · Supports Organization · country, Organization · kind

    “{"country": "Netherlands", "hq_iso2": "NL", "id": "163f1a28-e689-4e83-aeee-2a0201b58d69"}”
  2. 2

    Crunchbase · Supports Organization · hq city, Organization · linkedin url, Organization · x url

    “hq_city: Delft”
  3. 3

    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.”
  4. 4

    LinkedIn · Supports Organization · founded year, Organization · hq city, Organization · linkedin url

    “founded_year: 2016”

Products1

  1. 5

    Delft Circuits · Supports System

    “Flagship Effortless upgrading or immediate scale-up. Up to 256 channels HD SMP connectors.”

Funding5

  1. 6

    Delft Circuits · Dec 3, 2025 · Supports Funding round · amount

    “an €8 million extension of the company’s previous financing round”
  2. 7

    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.”
  3. 8

    CB Insights · Supports Funding round

    “4/14/2021 Seed VC”
  4. 9

    Quantum Computing Report · Supports Funding round

    “€8 million ($9.3 million USD)”
  5. 10

    Tracxn · Supports Funding round

    “Apr 14, 2021”

Each fact on this page is attached to the sources that support it. Archived copies are linked when we keep one.