When was QDNL Participations founded?

QDNL Participations was founded in 2023.

Where is QDNL Participations' headquarters located?

QDNL Participations' headquarters is located in Amsterdam (Netherlands).

How big is QDNL Participations' investment team?

QDNL Participations has a team of 11, including 3 partners.

How many companies has QDNL Participations invested in?

QDNL Participations has invested in 14 companies, including QphoX & QuantWare.

Which companies has QDNL Participations invested in lately?

Rhonexum & Sygaldry are the latest investments by QDNL Participations.

QDNL Participations - 2026 Investor Profile, Portfolio, Team & Investment Trends

1. QphoX

Developer of quantum modems and transducers. The modems connect quantum computers across a quantum network and utilise principles, components and technologies like coupling microwave and optical photons, an intermediary resonator, piezo-electric and optomechanical effects, as well as the conversion of quantum information between microwave and optical telecom frequencies.

Key facts about QphoX

Founded Year: 2020
Location: Delft (Netherlands)
Stage: Series A
Total Funding till date: $11.1M
Employee Count: 13 as on Jul 01, 2024
Investors: Speedinvest, Quantonation and 10 Others
Latest Funding Round: Series A, Jan 17, 2024, $*****
Highlight: Editors' Pick

2. QuantWare

Developer of superconducting quantum processors, amplifiers, and foundry services for quantum computing. They design and fabricate quantum hardware, offering a range of quantum processing units with varying qubit counts and coupler designs. Their amplifier products enhance qubit readout capabilities. Foundry services provide custom fabrication, from resonators and junctions to fully assembled quantum processing units.

Key facts about QuantWare

Founded Year: 2021
Location: Delft (Netherlands)
Stage: Series A
Total Funding till date: $32.9M
Investors: Rabobank, FORWARD.one and 8 Others
Latest Funding Round: Series A, Jun 17, 2025, $*****
Highlight: Editors' Pick

3. Orange Quantum Systems

Provider of software for performance analysis of quantum computing systems. It offers web-based software for testing and validation of quantum computing components. It also enables the development and characterization of quantum devices and algorithms. It is an open-source full-stack setup, which is used to control experimental physics research setups, quantum devices, and quantum computers.

Key facts about Orange Quantum Systems

Founded Year: 2020
Location: Delft (Netherlands)
Stage: Seed
Total Funding till date: $18.9M
Employee Count: 14 as on Jul 01, 2024
Investors: Cottonwood Technology Fund, InnovationQuarter and 5 Others
Latest Funding Round: Seed, Jun 18, 2025, $*****

4. Sygaldry

Developer of quantum-accelerated AI servers for training and inference acceleration. It builds tools to integrate quantum capabilities into AI models and workflows. The company aims to deliver infrastructure for quantum superintelligence. Its AI servers combine qubit modalities within a fault-tolerant architecture. This approach seeks to provide the cost, scale, and speed necessary for advanced AI applications.

Key facts about Sygaldry

Founded Year: 2024
Location: Mountain View (United States)
Stage: Series A
Total Funding till date: $139M
Investors: In-Q-Tel, Initialized Capital and 13 Others
Latest Funding Round: Series A, Mar 05, 2026, $*****

5. QT Sense

Provider of confocal microscopy to measure free radicals in stressed cells. The company's technology involves the development of a unique confocal microscope technology that enables high-resolution imaging of cells and tissues.

Key facts about QT Sense

Founded Year: 2024
Location: Groningen (Netherlands)
Stage: Seed
Total Funding till date: $9.83M
Investors: Cottonwood Technology Fund, Quantum Delta and 3 Others
Latest Funding Round: Seed, Feb 04, 2026, $*****
Highlight: Editors' Pick

View the full list of portfolio companies

QDNL Participations has invested in 14 companies over the last 3 years, with an average of 4 new investments annually in the last 3 years. In 2025, it made 6 investments, while as of Mar 2026, it has made 5 investments in this year. Its most recent first time investment was in Rhonexum and most recent follow-on round was in Quantum Elements.

Here are QDNL Participations' Year-on-Year Investment Trends:

Year	No. of Investments
Year	1^st Round	Follow-on	Total
2026 (YTD)	3	2	5
2025	4	2	6
2024	3	0	3
2023	3	0	3

View all investments by QDNL Participations

QDNL Participations has made 10 investments in Seed stage with an average round size of $3.22M and 3 investments in Series A stage with an average round size of $46.6M.

Here are QDNL Participations' investments by stage:

Stage of entry	No. of Investments
Seed	10
Series A	3

Note: We have considered here, only first round of investments

View all investments by QDNL Participations

QDNL Participations has a diverse portfolio, with companies operating in the High Tech, Semiconductors, Aerospace, Maritime and Defense Tech, Enterprise Applications and Industrial Goods and Manufacturing. Notably, it has invested in 11 Enterprise (B2B) companies, 11 Tech companies, 7 Software companies and 7 companies focusing on Tech hardware.

Here are QDNL Participations' investments by sector:

Sector	No. of Investments
High Tech	10
Semiconductors	2
Aerospace, Maritime and Defense Tech	1
Enterprise Applications	1
Industrial Goods and Manufacturing	1

Note: We have considered here, only first round of investments

View all investments by QDNL Participations

QDNL Participations has made most investments in Netherlands (6), followed by United States where it has made 5 investments.

Here are QDNL Participations' investments by geography:

Country	No. of Investments
Netherlands	6
United States	5
China	1
Switzerland	1

Note: We have considered here, only first round of investments

View all investments by QDNL Participations

QDNL Participations has made 5 investments in 2026 so far. Rhonexum and Sygaldry are the latest among them.

Here are the most recent investments by QDNL Participations:

Filter this list

Date	Company	Location	Round Details	Round Amount	Co-Investors
Mar 18, 2026	Rhonexum	Switzerland	Seed	5804	Venture Kick
Mar 05, 2026	Sygaldry	United States	Series A	8841	Breakthrough Energy [+11]
Feb 21, 2026	Quantum Elements	United States	Seed	8974	Quantacet [+2]
Feb 04, 2026	QT Sense	Netherlands	Seed	9780	Cottonwood Technology Fund
Jan 13, 2026	Diffraqtion	United States	Seed	7028	milemark•capital [+3]

See more recent investments made by QDNL Participations

QDNL Participations has a team of 11 members including 3 Partners, 1 Venture Partner and 1 Principal located in Netherlands and United States. QDNL Participations' team does not sit on the board of any company as of now.

Here is a list of top team members in QDNL Participations:

Name	Designation	Location	Board Memberships	Contact Details
Ton van 't Noordende	Partner	Amsterdam	-	1 Email
Bas Godska	Partner	Amsterdam	-	1 Email
Heleen Dura-van Oord	Partner	The Hague	-	-
Chad Rigetti	Venture Partner	Santa Monica	-	1 Email
Marcel Broersma	Principal	Randstad	-	-

View team details of QDNL Participations

Over the past 3 years, 59 investors have co-invested in QDNL Participations's portfolio companies. This includes funds and angels.

Invested before QDNL Participations: Quantum Delta, EIC Fund and 10 others have invested in rounds before QDNL Participations. There are 4 companies where Quantum Delta has invested before QDNL Participations and 2 companies where EIC Fund has invested before QDNL Participations.
Top Co-investors of QDNL Participations: 30 investors entered a company along with QDNL Participations. These include investors like Cottonwood Technology Fund (2 companies).
Invested after QDNL Participations: A total of 17 investors have invested in QDNL Participations's portfolio after their investments. Top Investors include InnovationQuarter (2 companies) and Invest-NL (1 company).