Mazama Energy Series B (2026)
Mazama Energy raised $135 million in a Series B round, announced on 2026-09-17. The round was led by Centaurus Capital and Doerr Capital.
- Company
- Mazama Energy
- Round type
- Series B
- Date
- 2026-09-17
- Amount
- $135M
- Industry
- geothermal energy, superhot rock
- Location
- Frisco, TX
Summary
Mazama Energy raised $135 million in an oversubscribed Series B announced on 2026-09-17. Centaurus Capital and Doerr Capital led the round. ConocoPhillips and Shell Ventures joined, with returning investors Khosla Ventures and Gates Frontier. The release also names SiteGround Capital, H. Barton Asset Management and the Jeffrey and Marieke Rothschild Foundation.
Investors
Lead
- Centaurus Capital lead
- Doerr Capital lead
Participating
- ConocoPhillips participant
- Shell Ventures participant
- Khosla Ventures participant
- Gates Frontier participant
Sources
Last verified:
- https://techcrunch.com/2026/09/17/khosla-backed-mazama-energy-just-raised-135m-to-drill-deeper-into-super-hot-rock-geothermal/
Type: reputable publication. Accessed 2026-10-07.
TechCrunch article dated 2026-09-17. Reports the $135 million oversubscribed Series B led by Centaurus Capital and Doerr Capital, with ConocoPhillips, Shell Ventures, Khosla Ventures and Gates Frontier. - https://markets.businessinsider.com/news/stocks/mazama-energy-raises-135-million-to-scale-the-world-s-hottest-engineered-geothermal-system-1036553410
Type: funding announcement. Accessed 2026-10-07.
GlobeNewswire release dated 2026-09-17, read on Markets Insider. Datelined Dallas. Confirms the Series B amount, co-leads and participants. - https://www.canarymedia.com/articles/geothermal/mazama-energy-raises-135m-oregon-geothermal
Type: reputable publication. Accessed 2026-10-07.
Canary Media article dated 2026-09-17. Calls the company Frisco, Texas-based and confirms the Series B led by Centaurus Capital and Doerr Capital.