Mazama Energy
A geothermal developer building enhanced geothermal systems that create engineered reservoirs in very hot rock to deliver round-the-clock electricity.
$135MSeries B
ParticipantSC
SiteGround Capital
siteground.capital ↗Activity from announced rounds
Activity in this selectionUnited States · Oct 16, 2026 · Sep 17, 2026
SiteGround Capital is a family office backing science and engineering businesses across deep technology, sustainability and AI.
Patient capital for science and engineering
SiteGround Capital is the investment business built by SiteGround’s founders, operating as a family office. Its stated areas span deep technology, sustainability and intelligence, including energy systems, biotechnology, advanced computing and industrial applications of AI. The organization describes its approach as providing patient capital for businesses whose development requires time and technical depth.
Activity recorded by RoundOS
RoundOS records participation in Axelera AI, Sage Geosystems and Mazama Energy. These transactions cover AI hardware and geothermal energy, illustrating part of the office’s stated focus. They reflect the financing events covered by this database; SiteGround Capital publishes a broader company portfolio on its own website.
Sources
- Rounds participated in
- 1
- Confirmed lead rounds
- 0 All roles disclosed
- New companies
- 1 First participation on record · 0 follow-on
- Funding in participating rounds
- $135M 1 disclosed · full round size, not this investor’s share