Investor profile
Ground State Ventures
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Ground State Ventures is a globally focused, specialist early-stage venture capital fund dedicated exclusively to quantum technology. The firm invests across the full quantum stack — computing, sensing, communications, and infrastructure — backing extraordinary scientific and technical teams from the very beginning, typically before or just after incorporation, and acting as first-check investor in every portfolio company. As Ton van 't Noordende states: 'Some investors go deep on science, others on venture. We understand both the science and the stakes, and we aim to build a category-defining fund that drives exceptional returns to our investors.' The firm sources deals primarily from elite university research groups globally (MIT, Harvard, Stanford, Berkeley, Oxford, Cambridge, Chalmers) and brings a team with PhDs in physics to evaluate opportunities. It provides not just capital but hands-on operating support to help scientist-founders build commercially viable businesses, and supports portfolio companies with follow-on funding as they scale. In quantum science, the 'ground state' is the baseline of a quantum particle — with the right energy it reaches an excited state where its reach expands. Ground State Ventures applies this metaphor directly: injecting capital and conviction to take startups from their starting point and put them on a path to transforming the world.
Notable quotes
“The quantum information age isn't coming, it's being built right now, by a growing number of extraordinary scientists and founders. We've had the privilege of backing some of the best of them, from the very start. Some investors go deep on science, others on venture. We understand both the science and the stakes, and we aim to build a category-defining fund that drives exceptional returns to our investors.”
“We're just getting started. The next wave of category-defining quantum companies is being built right now and we intend to be the first call when those founders are ready to go.”
“Quantum transduction, and the ability to interconnect modular quantum computers over an optical network, is a breakthrough capability that could shift how we think of building large scale quantum computers and the quantum internet. QphoX is the clear leader in this category. We're thrilled to back them in their mission to build a leading global quantum hardware company.”
Team
Chad Rigetti
Partner
Cheryne Jonay
Analyst
Kris Kaczmarek
Partner
Nadia Carlsten
Special Advisor
Nic Weiroster
Investment Associate
Recent investments
| Company | Round | Size | Date |
|---|---|---|---|
| Arq | Pre-seed | $1m | 2026-07-16 |
| QuantWare | Series B | $178m | 2026-05-05 |
| Sygaldry | Seed + Series A | $139m | 2026-04-14 |
| Rhonexum | Pre-seed | $1m | 2026-03-18 |
| QT Sense | Seed | $4m | 2026-02-04 |
| Diffraqtion | Pre-seed | $4m | 2026-01-13 |
| EuQlid | Pre-seed | $3m | 2025-11-04 |
| Qblox | Seed | — | — |
| QphoX | Seed | $8m | 2024-01-01 |
| Orange Quantum Systems (OrangeQS) | Seed | $12m | — |
Frequent co-investors
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