QDNL Participations is a venture capital firm that focuses on investing in early-stage quantum technology startups globally. Their strategy involves providing both financial backing and commercial/business development expertise to help researchers transform cutting-edge quantum innovations into investable businesses, particularly in areas like quantum computing, sensing, and communication.
44% of their portfolio is in Hardware & Semiconductors. Deal activity increased 100% year-over-year (4 deals in the last 12 months). Their most common stage is seed (56% of deals). Average disclosed round size is $7.0M (across 9 rounds with reported amounts).
Portfolio
9
Fund Size
$25M
Top Stage
Seed
Last 12 Mo
4
Portfolio Breakdown
Stage Distribution
Sector Distribution
Investment Activity
DealsAvg Round Size
Portfolio
9 investments
| Company | Round | Amount | Date |
|---|---|---|---|
| RRhonexum | Pre-Seed | $1M | Mar 2026 |
 QT Sense | Seed | $4M | Feb 2026 |
 Diffraqtion | Pre-Seed | $4.2M | Jan 2026 |
| OOrange Quantum Systems (OrangeQS) | Seed | $12M | Jun 2025 |
| QQuantWare | Series A | $20M | Mar 2025 |
| QT Sense | Seed | $6M | Feb 2025 |
 QphoX | Unknown | $8.7M | Jan 2024 |
| QQuantaMap | Seed | $1.5M | Dec 2023 |
| QQuantWare | Seed | $6M | Mar 2023 |
Top Co-Investors
InnovationQuarter2 shared
Graduate Entrepreneur2 shared
Cottonwood Technology Fund2 shared
FORWARD.one1 shared
Offline Ventures1 shared
QBeat1 shared
Quantonation1 shared
European Investment Bank1 shared
Speedinvest1 shared
Delft Enterprises1 shared
Last updated: 21 April 2026