A geothermal energy developer specializing in superhot rock geothermal power
mazamaenergy.comSeattle, Washington, USAEnergy
16 sources · checked 1 time, last 2d ago
Axios describes the $135 million as Series B funding and grants; the company’s release says it is new capital including the Series B, so the release controls.
Hand check: the financing total repeated this round's amount and no source calls it cumulative; total cleared
Published by hand (globenewswire.com): "17, 2026 (GLOBE NEWSWIRE) -- Mazama Energy today announced $135 million in new capital to accelerate superhot rock geothermal commercial development, including an oversubscribed Series B led by Centaurus Capital, founded by John Arnold, and Doerr Capital.": Checked by hand: Mazama's own release (GlobeNewswire, Sept 17) states the $135M, including its Series B.
| Round | Amount | Announced | Lead | Buzz |
|---|---|---|---|---|
| Series B | $135M $135M financing total | 2026-09-17 | Centaurus Capital, Doerr Capital, Khosla Ventures | No recent discussion |
16 sources · checked 1 time, last 2d ago [ VERIFIED ] read against 4 of 16 sources Axios describes the $135 million as Series B funding and grants; the company’s release says it is new capital including the Series B, so the release controls. Hand check: the financing total repeated this round's amount and no source calls it cumulative; total cleared Published by hand (globenewswire.com): "17, 2026 (GLOBE NEWSWIRE) -- Mazama Energy today announced $135 million in new capital to accelerate superhot rock geothermal commercial development, including an oversubscribed Series B led by Centaurus Capital, founded by John Arnold, and Doerr Capital.": Checked by hand: Mazama's own release (GlobeNewswire, Sept 17) states the $135M, including its Series B. | ||||
Mazama Energy builds enhanced geothermal systems that drill into superhot rock and engineer underground reservoirs to produce utility-scale, always-on, carbon-free electricity for utilities, grid planners and hyperscalers.
Checked against 10 sources on Sep 23
Also named as backers in company research: U.S. Department of Energy's Geothermal Technologies Office