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Helium-3 Ventures is a New York-based venture capital firm founded in 2021 that backs founders building transformative, hardware-heavy, and capital-intensive technologies addressing challenges on Earth and beyond. It invests across clean energy, advanced materials, communications, and space exploration.
Average disclosed round size is $25.7M (across 10 rounds with reported amounts).
Portfolio
7
Fund Size
—
Top Stage
Series A
Last 12 Mo
0
Team
DH
David Hendrickson
Founding Partner
JD
John Dauer
Founding Partner
MB
Matthew Bellamy
Founding partner
Portfolio Breakdown
Stage Distribution
Sector Distribution
Investment Activity
DealsAvg Round Size
Portfolio
11 investments
| Company | Round | Amount | Date |
|---|---|---|---|
 Runwise | Series B | $55M | Jun 2025 |
| Runwise | Series B | $79M | Jan 2025 |
| EEngineered Arts | Series A | — | Dec 2024 |
 Princeton NuEnergy | Series A | $30M | Jun 2024 |
 Dendra Systems | Unknown | $15.7M | May 2024 |
| EEngineered Arts | Series A | $10M | Jan 2024 |
| Runwise | Series A | $19M | Nov 2022 |
 Pebble | Seed | $6.2M | May 2022 |
 Transastra | Seed | $11M | Jan 2021 |
| Dendra Systems | Series B | $15.8M | Sep 2020 |
| DDendra | Series B | $15.8M | Sep 2020 |
Top Co-Investors
Soma Capital4 shared
Alumni Ventures3 shared
Menlo Ventures3 shared
Lowercarbon Capital3 shared
Fifth Wall2 shared
MassMutual2 shared
Multiplier Capital2 shared
Y Combinator2 shared
Global Founders Capital2 shared
Airbus Ventures2 shared
Saudi Aramco2 shared
Systemiq Capital2 shared
Future Positive Capital2 shared
Zouk Capital2 shared
Understorey2 shared
Wistron Corporation1 shared
Saban Capital Group1 shared
NextView Ventures1 shared
Rudin Management1 shared
Last updated: 20 October 2026