The Venture Codex

Led · Seed · Mar 2026

Rhonexum is a Swiss startup spun out of EPFL’s AQUA Lab that develops electronics capable of operating at cryogenic temperatures required by quantum processors. The company combines proprietary models and software tools to design components using standard semiconductor processes that function near absolute zero. Rhonexum aims to bring control electronics closer to quantum processors to reduce system complexity and enable more compact architectures. The founders are Vicente Carbon and Dr Hung-Chi Han, who bring expertise in cryogenic semiconductor physics and systems engineering. The company has secured $1 million in pre-seed equity funding led by QDNL Participations, plus participation from Venture Kick and grant support from several Swiss innovation programs. Rhonexum plans to deliver its first industrial-grade cryogenic electronics product to early customers later this year.

Participated · Seed · Feb 2026

QT Sense is a Netherlands-based life-science technology company building a precision quantum sensing platform that enables more accurate biological insights for drug discovery and spatial biology applications. The platform is positioned as an enabling layer that can expand what is measurable and actionable in complex biological systems, potentially unlocking a multi-billion-euro market opportunity. With its newly funded “AAA strategy,” the company plans a dual focus: accelerating user adoption in pharmaceutical settings while simultaneously deepening the platform’s technical capabilities and scaling manufacturing for production-quality delivery. This marks a transition from pilot projects to repeatable customer deployments. QT Sense frames the round not merely as capital but as a milestone toward a “quantum future” for life sciences, emphasizing alignment with investors on long-term vision and near-term commercialization priorities. No operating metrics such as revenue or user counts were disclosed in the article.

Led · Seed · Jan 2026

Diffraqtion develops quantum-enabled cameras designed to deliver high-resolution imaging for advanced sensing applications across Earth and space intelligence, robotics, defense and autonomous systems. Its technology aims to enable machines to perceive and understand the physical world with greater precision as AI expands into physical environments. The company is accelerating development and deployment of these cameras and has scheduled field testing to begin later this month with assistance from a global network of hardware experts. Financially, Diffraqtion announced an additional pre-seed investment round (investors include SBI US Gateway Fund, Plug and Play Tech Center, Collaborative Fund, Wolf Point Capital, Parallel VC and ADIN) that adds to a $4.2 million pre-seed raise in February. Diffraqtion also holds a $1.5 million Direct-to-Phase II SBIR contract from DARPA to demonstrate its quantum camera technology.

Led · Equity · Oct 2025

SiC Systems combines agent-based artificial intelligence with quantum and classical sensing to orchestrate complex physical processes for sectors such as biomanufacturing, industrial automation, energy, and defence. The company’s platform integrates generative models and quantum-inspired virtual sensors that predict physical states with high precision, reducing dependence on costly hardware and enabling operation in harsh environments. Founded by Siri inventor Christopher Savoie and DTU professor Seyed Soheil Monsouri, the startup is rooted in research from the Technical University of Denmark and operates between Copenhagen and Nashville. Its intelligent, adaptive AI agents are designed to make mission-critical decision-making actionable in real time. With fresh capital, SiC Systems plans to scale its technology, forge strategic partnerships, and launch pilot deployments across multiple industrial domains. Financially, the company has secured more than €2 million in its latest round; no additional revenue or user metrics were disclosed.

Participated · Seed · Jun 2025

Founded in 2020 and based in Delft, Orange Quantum Systems builds hardware, software and services for scalable quantum chip testing and characterisation. Its flagship product, OrangeQS MAX, is positioned as a high‑throughput, turn‑key test system designed to minimise test time per qubit and reduce capital and operational costs per tested qubit. The company also offers OrangeQS FLEX for customisable R&D testing, OrangeQS Juice as an open‑source operating system for quantum workflows, and Quantum Care consultancy for system integration. OrangeQS has launched a MAX Partnership Programme with first partners Rigetti Computing, QuantWare and Peak Quantum to align product roadmaps and support future-proofing of its systems. With the recent Seed extension including EIC Fund investment, OrangeQS is accelerating development of technologies for faster cryogenic testing and parallel, non‑destructive testing capabilities. The company frames utility‑grade quantum chip testing as an enabler for future ‘dark quantum foundries’ and published a white paper ahead of the ISIG Quantum Computing Infra Summit 2026.