Delft Circuits
Delft Circuits designs and manufactures Cri/oFlex® superconducting NbTi flex cables that replace conventional wiring inside cryogenic systems, providing higher-density, lower-thermal-load I/O for quantum computing companies, national laboratories, and academic institutions globally.
- Company typePrivate
- Founded2016
- HeadquartersDelft, Netherlands
- Headcount11–50
- GTM typeB2B
- OfferingHardware or Manufacturing
What Delft Circuits does
Delft Circuits B.V. is a Dutch deep-tech company founded in 2016 and headquartered in Delft, the Netherlands, that designs and manufactures superconducting cryogenic cabling for quantum computing systems. Its core product, the Cri/oFlex® superconducting NbTi flex cable, replaces conventional coaxial wiring inside dilution refrigerators and cryostats, delivering 10x lower thermal load, higher channel density (up to 256 channels per loader), and 5-20x fewer failure points through integrated signal filtering. The company's flagship 256-channel loader, compact self-installation cabling kits, and integrated filtering components are designed, manufactured, assembled, and tested in-house at its Delft facility, with a published roadmap to scale to 1,024 channels by 2027 and 4,096 channels by 2029.
The company sells to a focused customer base of full-stack quantum computing companies, national laboratories, academic institutions (including QuTech at TU Delft), and blue-chip corporations developing quantum capabilities. Named customers include Groove Quantum, QuantWare, Qblox, and Quantum Motion, with strategic integration partnerships with Bluefors (cryogenic platforms) and FormFactor (precision measurement). GTM is sales-led and event-driven, combining direct enterprise sales with a global commercial expansion (US roadshow, Asian market development) and partnership-driven channel access.
Delft Circuits generates revenue primarily through hardware sales of Cri/oFlex®-based products (turn-key loaders, probes, and compact self-installation kits), supplemented by professional services such as technical support, system validation, and integration assistance. Pricing is quote-based, denominated in euros, and not publicly disclosed. As of December 2025, the company has raised approximately €15 million in total funding across a €6.3M Series A (2023) and an €8M Series A extension, with new CEO Martin Danoesastro, COO Karen Keenan, and Global CCO Robby Ferdinandus installed to drive the next phase of manufacturing scale-up and international expansion ahead of a planned 2026 Series B.
Delft Circuits firmographics
Firmographics- Name
- Delft Circuits
- Legal name
- Delft Circuits B.V.
- Website
- https://delft-circuits.com
- Company type
- Private
- Founded year
- 2016
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Delft Circuits designs and manufactures Cri/oFlex® superconducting NbTi flex cables that replace conventional wiring inside cryogenic systems, providing higher-density, lower-thermal-load I/O for quantum computing companies, national laboratories, and academic institutions globally.
- Ownership category
- akta.pro rank
Delft Circuits industry classification
Industry- Product category
- Quantum Computing Hardware
- NAICS
- Electronic Connector Manufacturing (334417)
- SIC
- Electronic Connectors (3678), Printed Circuit Boards (3672)
- akta.pro primary industry
- Cryogenic Wiring, Interconnects & RF Cabling (HDAGABAE)
- akta.pro secondary industries
- Cryogenic Packaging, Enclosures & Thermal Interfaces (Sample Holders, PCBs, Connectors) (HDAGABAO), Calibration, Characterization & Test Instrumentation (Cryo/RF) (HDAGABAM), QPU Packaging, Interconnects & Chiplets (Quantum Processor Integration) (HDAGAAAJ)
Keywords
Where Delft Circuits is headquartered
LocationHeadquarters
- HQ city
- Delft
- HQ country
- Netherlands
- HQ region
- Europe
Offices2 records
Markets served
Delft Circuits business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Supply Chain, Operations, Personnel, Technology or R&D, Infrastructure, Marketing or Sales
Revenue model
- Cri/oFlex Hardware Sales: Sale of turn-key loaders and probes for large-scale quantum systems, as well as compact cabling kits for customer self-installation. Products are designed, manufactured, assembled, and tested in-house in Delft.
- Professional Services: Services including technical support, system validation, and integration assistance for quantum I/O infrastructure deployment.
Go-to-market motion3 records
Distribution channels3 records
Marketing channels5 records
Delft Circuits product offering
Product offeringCore offering
Delft Circuits designs, manufactures, and sells Cri/oFlex® superconducting NbTi flex cables and turn-key 256-channel cryogenic loaders that replace conventional coaxial wiring inside quantum computer dilution refrigerators. The products deliver higher I/O channel density, lower thermal load, integrated signal filtering, and improved reliability at scale for superconducting and spin-qubit quantum computing systems. All design, manufacturing, assembly, and cryogenic validation are performed in-house at the Delft facility.
Product overview
Delft Circuits provides a portfolio of quantum I/O infrastructure hardware built around its Cri/oFlex® superconducting cable technology. The core offering includes the 256-channel loader (turn-key system) and compact cabling kits (self-installation), both featuring integrated filtering components. The company designs, manufactures, and validates all products in-house at its Delft facility.
Differentiator
Problem solved
Functional benefit
Brands
- Cri/oFlex®: Flexible cryogenic cable product designed specifically for cryogenic (quantum) systems; superconducting NbTi flex cables with integrated signal filtering components
Products and services
- Cri/oFlex® Superconducting Cables Superconducting NbTi flexible cables that replace conventional coaxial wiring inside cryostats, delivering higher channel density, 10x lower thermal load, integrated filtering, and proven reliability at scale for quantum computing systems operating at near absolute zero in dilution refrigerators.
- 256-Channel Loader Turn-key ISO-100 style fully assembled cable tree delivering 256 channels per loader, offering 8x higher density at the same price point compared to HD coax. Designed for large-scale superconducting and spin-qubit quantum computer systems and validated in operational testbeds.
- Compact Cabling Kits Self-installation cabling kits enabling customers to install Delft Circuits' cryogenic Cri/oFlex cabling solutions themselves, targeted at mid-market quantum computing customers and researchers.
Quantifiable outcome
- 256 channels per loader vs 168 channels for HD coax at double the cost
- +4 more outcomes
Companies that use Delft Circuits
Customer profileNamed customers4 records
Segments4 records
Ideal customer profiles4 records
Delft Circuits technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature5 records
Delft Circuits partnerships and signals
Strategic signalPartnerships
Three partnerships are on record, tiered core and supporting.
- BlueforscorePartnership to offer cutting-edge quantum I/O solutions integrating Delft Circuits' Cri/oFlex technology into Bluefors' dilution refrigerators. Provides scalable quantum I/O for next-generation quantum computers with combined expertise in cryogenic cooling and high-density cabling.
- FormFactorcorePartnership enhancing scalability and performance with high-density cryogenic cabling solutions. FormFactor provides precision measurement solutions for quantum computing, with Delft Circuits providing complementary I/O infrastructure.
- TechCrunch Startup BattlefieldsupportingDelft Circuits featured in TechCrunch's Startup Battlefield 200 competition among 16 standout companies in logistics, manufacturing, and materials sectors at Disrupt 2025.
Scale indicators8 records
Recent moves6 records
Expansion highlights5 records
Delft Circuits competitors and assessment
Company assessmentBroad incumbents
- Bluefors: Leading manufacturer of dilution refrigerators used in quantum computing and cryogenic research. Delft Circuits is both a partner (Cri/oFlex integrated into Bluefors systems) and a partial competitor, since Bluefors sells bundled cryogenic solutions that could incorporate internal I/O offerings.
- Zurich Instruments: Established maker of lock-in amplifiers, quantum analyzers, and control electronics used by quantum computing and condensed-matter labs. Overlaps with Delft Circuits in the broader quantum control and signal-conditioning stack, with Zurich Instruments offering room-temperature electronics rather than cryogenic cabling.
- Oxford Instruments NanoScience: Sells high-end dilution refrigerators and cryogenic systems to quantum computing customers. Comparable to Delft Circuits as a cryogenic infrastructure supplier, but with broader portfolio and direct overlap in the cabling/wiring subsystem of every system they sell.
- FormFactor: Provides cryogenic probe stations and precision measurement solutions for quantum and semiconductor testing. Currently a Delft Circuits partner, but also a potential adjacent supplier in the cryogenic interconnect/measurement chain for quantum computing and adjacent deep-tech applications.
- Lake Shore Cryotronics: Long-established supplier of cryogenic temperature sensors, instrumentation, and probe stations for quantum and condensed-matter research. Comparable as a broader cryogenic instrumentation vendor with potential overlap on cryogenic measurement and interconnect components.
Direct peers
- Qblox: Supplies modular quantum control stacks (signal generation, up/downconversion, control electronics) for superconducting and spin-qubit systems. Comparable because both companies sit in the cryogenic control I/O layer of the quantum stack and target the same end customers.
- Quantum Machines: Provides quantum orchestration platforms and control electronics (OPX, QUA) used by leading quantum labs. Both companies supply the signal-delivery/control infrastructure between room-temperature electronics and the QPU, addressing the same scaling bottleneck for end customers.
- Leiden Cryogenics: Dutch-based manufacturer of dilution refrigerators and cryogenic equipment with deep ties to the Dutch quantum ecosystem. Direct competitor in cryogenic infrastructure for quantum labs and a natural regional peer given shared proximity to QuTech/TU Delft.
Emerging players
- Maybell Quantum: US-based company developing cryogenic hardware including dilution refrigerators and related systems for the quantum industry. Emerging competitor in the same cryogenic infrastructure layer, with overlapping customer base at national labs and US quantum hardware vendors.
Others
- ColdQuanta (Infleqtion): Quantum hardware company developing cold-atom-based quantum computers and components. Adjacent rather than directly competing — both operate in the quantum hardware ecosystem and supply into overlapping customer programs, though Infleqtion targets a different qubit modality.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
Delft Circuits social profiles
Digital presenceDelft Circuits financial estimates
Financial estimateRevenue estimate
Valuation estimate
Delft Circuits leadership team
Management profileNumber of profiles
Profiles6 records
Delft Circuits funding detail
Funding detailFunding overview
Funding rounds6 records
Investors8 records
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Delft Circuits M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Delft Circuits
What does Delft Circuits do?
Delft Circuits designs, manufactures, and sells Cri/oFlex® superconducting NbTi flex cables and turn-key 256-channel cryogenic loaders that replace conventional coaxial wiring inside quantum computer dilution refrigerators. The products deliver higher I/O channel density, lower thermal load, integrated signal filtering, and improved reliability at scale for superconducting and spin-qubit quantum computing systems. All design, manufacturing, assembly, and cryogenic validation are performed in-house at the Delft facility.
Is Delft Circuits a public or private company?
Delft Circuits is a private company. It is classified as venture growth investor backed and is currently operating.
When was Delft Circuits founded?
Delft Circuits was founded in 2016. It employs 11 to 50 people.
Where is Delft Circuits based?
Delft Circuits is headquartered in Delft, Netherlands, in the Europe region.
How does Delft Circuits make money?
Two revenue lines are on record. Cri/oFlex Hardware Sales are the primary driver. The others are professional Services.
Who are Delft Circuits's main competitors?
Broad incumbents on record are Bluefors, Zurich Instruments, Oxford Instruments NanoScience, FormFactor and Lake Shore Cryotronics. Direct peers are Qblox, Quantum Machines and Leiden Cryogenics. Maybell Quantum is listed as an emerging player. ColdQuanta (Infleqtion) is listed as an others.
Does Delft Circuits have an API?
No public API is recorded for Delft Circuits.
What industry is Delft Circuits in?
Delft Circuits's product category is Quantum Computing Hardware. Its primary akta.pro industry code is HDAGABAE, Cryogenic Wiring, Interconnects & RF Cabling, with a secondary code of HDAGABAO, Cryogenic Packaging, Enclosures & Thermal Interfaces (Sample Holders, PCBs, Connectors). Its NAICS code is 334417 and its SIC code is 3678.