Quaise Energy
Develops millimeter-wave drilling technology to access superhot geothermal energy resources
$134MSeries B
Role not disclosedPV
Prelude Ventures
Activity from announced rounds
Activity in this selectionJul 31, 2026 · Jul 1, 2026
Prelude Ventures invests in early-stage companies whose technologies can help mitigate climate change.
Investment focus
The firm’s portfolio spans energy, carbon management, industrial technology, mobility and other sectors affected by the transition to lower-carbon systems. Its strategy supports companies developing both physical technology and software.
Activity recorded by RoundOS
Recorded examples include Quaise’s geothermal drilling, Branch Energy’s distributed energy systems, Form Energy’s multi-day batteries and Rhoda AI’s robotics. This selection shows the activity currently recorded by RoundOS alongside the firm’s wider stated climate mandate.
Sources
- Rounds participated in
- 1
- Confirmed lead rounds
- — 1 roles undisclosed
- New companies
- 1 First participation on record · 0 follow-on
- Funding in participating rounds
- $134M 1 disclosed · full round size, not this investor’s share