Ground State Ventures is an Amsterdam quantum technology investor founded in 2022 as QDNL Participations, the investment vehicle attached to the Dutch national programme Quantum Delta NL. It invests at pre-seed and seed in quantum computing, sensing, communications and supporting infrastructure, and has been the first institutional investor in every company it has backed. It rebranded in 2026 on closing a fund of more than EUR 75 million, and invests in the Netherlands, the rest of Europe and the United States.
Investment thesis
Ground State Ventures invests at pre-seed and seed in quantum technology, spanning computing, sensing, communications and supporting infrastructure, and aims to be the first institutional investor in every company it backs. It invests across the Netherlands, the rest of Europe and the United States.
Sesamers tracks 1 portfolio company across 1 round, 1 of them as lead investor. Its most recent tracked deal: RhymeQ, Oct 2026.
Portfolio
Past investments
| Company | Round | Role | Date | Round size |
|---|---|---|---|---|
| RhymeQ | Pre-seed | Lead | Oct 2026 | €2.0M |