Sandgrain
4 known investors
Find your way into Sandgrain
373 people in our graph share verified history with the Sandgrain team — schools, employers, funds. One of them is your warm intro.
René Kuijtenunlockedknows Joeri Voets · together at Utrecht University (overlapped)
×4knows the team · via Leiden University
knows the team · via University of Twente
×3knows the team · via Radboud University
×3knows the team · via Utrecht University
SandGrain develops CyberRock, a post-quantum-resilient authentication platform designed for aerospace and defense applications in Europe and NATO member states.
Founders & leadership
JD
Jeroen DoumeninFounder & Security ArchitectJeroen Doumen is founder and security architect of Sandgrain, which develops post-quantum-resilient authentication technology for aerospace and defense. He has expertise in cryptography, cryptographic protocols, coding theory, and embedded security.
JV
Joeri VoetsinCEOJoeri Voets holds a degree in Physics and brings over 20 years of business leadership experience across operational, commercial, and general management roles. He is CEO of SandGrain, which develops post-quantum-resilient authentication technology for aerospace and defense applications.
Investors · 4
Funding
SEC filings, press & company announcements- Undisclosed amountSeries ADec 2025Source ↗
- Undisclosed amountextended seed fundingMar 2024Source ↗
- Undisclosed amountseed investment roundApr 2023Source ↗
Source: company announcements and press reports — follow each round's link for the claim.
In the news
Frequently asked questions
- What does Sandgrain do?
- SandGrain develops CyberRock, a post-quantum-resilient authentication platform designed for aerospace and defense applications in Europe and NATO member states.
- Who founded Sandgrain?
- Sandgrain was founded by Jeroen Doumen.
- Who are Sandgrain's investors?
- Sandgrain's investors include DeepTechXL, Innovation Industries, Invest-NL, BOM.