Accelerating the Quantum Information Age
Scroll
We're Ground State Ventures. We discover high-potential quantum technology startups across the world and support them from the very beginning.
The quantum technology revolution is just getting started. We identify the teams shaping this future and give them the funds and support they need to build world-changing businesses.
OUR PORTFOLIO
15Across quantum computing, sensing, communications and infrastructure, we invest in the best teams working at the cutting edge of what's possible to build the next generation of era-defining technology businesses.
Filter by:
Our Team
07GSV in the Media
06Sifted05.05.2026
Intel backs quantum startup Quantware in $178m Series B to kick-start production at ‘industrial scale’
The Dutch startup plans to open an industrial-scale facility this year to boost the production of quantum processors
Tech Funding News28.04.2026
Ground State Ventures raises $88M fund to back early-stage quantum startups
Ground State Ventures, previously known as QDNL Participations, has raised an $88 million fund, 26% above its original $70 million target.
Fortune14.04.2026
Chad Rigetti’s Sygaldry raises $139 million to bring quantum hardware to AI data centers
Sygaldry has raised a total of $139 million, including a $105 million Series A that closed in March. Ground State Ventures backed them from the start.
Tech.eu18.03.2026
Rhonexum secures $1M to scale cryogenic electronics for quantum computing
Swiss startup Rhonexum has raised $1 million in pre-seed funding, led by QDNL Participations. The startup develops electronics capable of operating at cryogenic temperatures, conditions required for quantum computing, where conventional electronics cannot function reliably.
Tech Funding News04.02.2026
QT Sense lands €4M to track living cells in real time
Quantum sensing life sciences startup QT Sense has secured €4 million in funding, including follow-on backing from existing investor QDNL Participations.
The Quantum Insider12.01.2026
Diffraqtion Raises $4.2 Million to Build Quantum Camera-Enabled Satellite and Telescope Constellations
Diffraqtion, an MIT and University of Maryland spinout developing satellite constellations powered by a novel quantum camera, today announced the close of a $4.2 million pre-seed funding round, led by QDNL Participations.
News & Features
14
QuantWare raises $178 million Series B round
We’re backing our portfolio company again in this record raise
05.05.2026
We’ve changed our name: QDNL Participations is now Ground State Ventures
The rebrand comes as our fund hits $88 million, well exceeding its target
28.04.2026
We’re backing Chad Rigetti’s quantum-accelerated AI servers
Today we can announce that we’re investing in our partner Chad Rigetti’s new company, Sygaldry. We have supported them from the very start, across Seed and Series A.
14.04.2026
We’re backing cryogenic tech to scale quantum computing
Rhonexum uses cryogenic technology to remove a major scalability bottleneck in quantum computin
18.03.2026
QT Sense is ready to go to market with a €4m Seed round
Ground State Ventures returns to invest after backing the commercial quantum sensing leader from the start
04.02.2026
A breakthrough quantum camera for space
We have led Diffraqtion's pre-seed round
13.01.2026
A breakthrough for semiconductors and batteries
EuQlid comes out of stealth as we lead its $3 million round
04.11.2025
Out of stealth: Meet our latest investment
Quantum Elements makes it easier to build quantum solutions
22.10.2025
We're backing a 'Father of Siri' to fuse quantum tech and AI
Meet SiC Systems, our first US investment announcement
14.10.2025
Bringing quantum to life for our LPs
…at our first LP and portfolio day
08.10.2025
Orange Quantum Systems raises €12 million seed round
While QuantWare extends its Series A
12.08.2025
We’re growing our team again
Nicola Weiroster joins as an Associate on the investment team
12.08.2025
QuantWare’s €20 million Series A will push quantum processors forward
Having backed them from the start, we’ve also joined this round
06.03.2025
Understanding diseases with quantum sensing
QT Sense raises €6 million
25.02.2025