Startup · Netherlands
Delft Circuits
HQ Delft, NetherlandsFounded 201611-50 employeesUpdated
Discover Delft Circuits' superconducting Cri/oFlex cabling for high-density quantum I/O with lower thermal load and integrated filtering.
Funding7 rounds · ~$16.0M
- Equity raised
- ~$16.0M
- Debt, secondaries & grants
- Undisclosed
- Latest
- $9.3MSeries A · Dec 3, 2025
| Announced | Stage | Amount | Valuation | Lead investors | Other investors | Confidence |
|---|---|---|---|---|---|---|
| Dec 3, 2025 | Series A | $9.3M | — | — | DeepTechXL, High-Tech Gründerfonds, Paeonia Group, QuVest, QuVest Capital, Waves Capital Partners | Confirmed |
| Feb 17, 2025 | Grant | Undisclosed | — | — | — | Reported |
| Feb 17, 2025 | Undisclosed | Undisclosed | — | — | — | Reported |
| Sep 7, 2023 | Series A | ~$6.7M | — | DeepTechXL | High-Tech Gründerfonds | Reported |
| Apr 14, 2021 | Seed | Undisclosed | — | — | High-Tech Gründerfonds | Reported |
| Apr 14, 2021 | Undisclosed | Undisclosed | — | — | — | Reported |
| 2021 | Seed | Undisclosed | — | — | High-Tech Gründerfonds, QuVest Capital, Scholt Group | Reported |
- Series AWith DeepTechXL, High-Tech Gründerfonds, Paeonia Group, QuVest, QuVest Capital, Waves Capital PartnersConfirmed$9.3MDec 3, 2025
- GrantUndisclosedFeb 17, 2025
- UndisclosedUndisclosedFeb 17, 2025
- ~$6.7MSep 7, 2023
- SeedUndisclosedApr 14, 2021
- UndisclosedUndisclosedApr 14, 2021
- SeedWith High-Tech Gründerfonds, QuVest Capital, Scholt GroupUndisclosed2021
Raised counts equity rounds; debt, secondary sales and grants are totaled separately. Amounts in other currencies are converted at the announcement month's average rate. A ~ marks an estimated or converted amount.
Systems5
- Cri/oSuite® System DesignIn‑house software tool for simulating and optimizing I/O design and thermal budgeting.
- FlagshipA modular I/O system with HD SMP connectors.
- KF25 portA compact cabling kit for non-line-of-sight ports.
- KF40 portA flexible cabling kit for non-line-of-sight ports.
- Tabbi/® connectorFlex‑to‑flex connector offering ultra‑high density and modular configuration.
Newest unveiled first. Systems that belong to a government program link to the program page, where variants, costs and contracts are.
People4
| Person | Role |
|---|---|
| Daan Kuitenbrouwer · LinkedIn ↗ | CPO and Co-Founder |
| Sal Jua Bosman | CEO - Founder |
| Daan Kuitenbrouwer · LinkedIn ↗ | CPO and Co-Founder |
| Martin Danoesastro · LinkedIn ↗ | Chief Executive Officer |
Sources13
Show all 13 sources and supporting evidence
Profile2
- 1
Sixth-Domain · Supports Organization · country, Organization · kind
“{"country": "Netherlands", "hq_iso2": "NL", "id": "163f1a28-e689-4e83-aeee-2a0201b58d69"}”
- 2
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.”
Systems1
- 3
Delft Circuits · Supports System
“KF25 port Compact, plug-and-play cabling kits for non-Line of Sights ports. Up to 16 channels SMP, SMA connectors.”
Funding9
- 4
Delft Circuits · Dec 3, 2025 · Supports Funding round · amount, Organization · ownership
“an €8 million extension of the company’s previous financing round”
- 5
Delft Circuits · Dec 3, 2025 · Supports Funding round · amount
“Delft, Netherlands (December 3, 2025) — Delft Circuits, a pioneer in high-density I/O solutions for quantum computers, today announces the appointment of Martin Danoesastro as Chief Executive Officer, and an €8 million extension of the company’s previous financing round, bringing the total capital raised to €15 million.”
- 6
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.”
- 7
CB Insights · Supports Funding round
“4/14/2021 Seed VC”
- 8NewsDelft Circuits Appoints Martin Danoesastro as CEO and Secures €8M ($9.3M USD) Series A Extension
Quantum Computing Report · Supports Funding round
“€8 million ($9.3 million USD)”
- 9
- 10
High-Tech Gründerfonds · Supports Funding round · amount
“Together with the current investors, including German based High-Tech Gründerfonds, they announce a series A investment of 6.3 M€, of which DTXL contributes 5 M€.”
- 11
High-Tech Gründerfonds · Supports Funding round · stage
“Für unsere nächsten Schritte in der Skalierung und Industrialisierung unserer Fabrik und unseres Teams begrüßen wir drei starke Partner. Das Investment mit dem High-Tech Gründerfonds (HTGF), der Scholt Group und QuVest bringt uns die nötigen Mittel, Erfahrung und das Netzwerk, um den nächsten Schritt in unserer Entwicklung zu gehen.”
- 12
LinkedIn · Supports Funding round, Organization · employee range, Organization · founded year, Organization · hq city, Organization · hq region, Organization · linkedin url, Role
“funding round: Venture Round, 2021-04-14”
People1
- 13
Crunchbase · Supports Organization · hq city, Organization · linkedin url, Organization · x url, Role
“hq_city: Delft”
Each fact on this page is attached to the sources that support it. Archived copies are linked when we keep one.