PhotonVentures is a Netherlands-based deep tech venture capital firm exclusively focused on integrated photonics. It invests in early-stage European startups and scale-ups developing photonic chip technologies for applications including data transmission, health diagnostics, AI, AR/VR, and quantum technologies.
Deal activity increased 50% year-over-year (3 deals in the last 12 months). Their most common stage is seed (75% of deals).
Portfolio
8
Fund Size
$80M
Top Stage
Seed
Last 12 Mo
3
Team
JD
Joachim de Sterke
Co-founder and General Partner
ER
Ewit Roos
General partner
FP
Flo Pattiwael
Principal
ET
Evelien Talsma
Associate
ER
Elena Rabadeux
DeepTech VC Analyst Intern
CV
Casper Vissers
Venture Capitalist
GV
Ger van Jeveren
Investor
Portfolio Breakdown
Stage Distribution
Sector Distribution
Investment Activity
Portfolio
8 investments
| Company | Round | Amount | Date |
|---|---|---|---|
 BrillianceRGB | Seed | $6.5M | Apr 2026 |
 VitreaLab | Series A | $11M | Jan 2026 |
 NcodiN | Seed | — | Nov 2025 |
 Astrape Networks | Seed | — | Apr 2025 |
 Lumai | Unknown | — | Apr 2025 |
 MicroAlign | Seed | — | Jun 2024 |
 MantiSpectra | Seed | — | — |
 Astrape Networks | Seed | — | — |
Top Co-Investors
Constructor Capital2 shared
LIFTT2 shared
SHIFT Invest2 shared
Earlybird Venture Capital1 shared
MIG Capital AG1 shared
Maverick Silicon1 shared
MIG AG1 shared
Elaia1 shared
Verve Ventures1 shared
Long Journey Ventures1 shared
State Farm Ventures1 shared
IP Group plc1 shared
Bisk Ventures1 shared
Gateway Ventures1 shared
Hermann Hauser Investment1 shared
APEX Ventures1 shared
XISTA Science Ventures1 shared
Moveon Technologies1 shared
Oost NL1 shared
Last updated: 7 October 2026