| # | Company | Location | Employees | Total Funding | Last Round | Last Funded |
|---|---|---|---|---|---|---|
| 1 |
Sage Geosystems
Sage Geosystems develops geothermal and energy storage technologies that use sub…
|
Houston | 11 - 50 | $114.0M | Series B | 2026-01-21 |
| 2 |
Zanskar
Zanskar develops data-driven technology to identify and develop geothermal energ…
|
Salt Lake City | 101 - 250 | $157.2M | Series C | 2026-01-21 |
| 3 |
Terrestrial Energy
Terrestrial Energy is a developer of a reactor power plant technology to provide…
|
Oakville | 51 - 100 | $156.6M | Post Ipo Equity | 2025-10-28 |
| 4 |
Ormat Technologies
Ormat Technologies engages in the geothermal and recovered energy power business…
|
Reno | 1K - 5K | $2.5B | Post Ipo Equity | 2025-05-27 |
| 5 |
Strataphy
Strataphy offers geothermal cooling via a service model for buildings, industry,…
|
Dammam | 11 - 50 | $6.0M | Seed | 2025-11-24 |
| 6 |
Octavia Carbon
Octavia Carbon is a Direct Air Capture (DAC) company based in Kenya.
|
Nairobi | 51 - 100 | $4.6M | Seed | 2024-10-16 |
| 7 |
Calpine
Calpine is an energy company that generates electricity from natural gas and geo…
|
Houston | 1K - 5K | $2.5B | Debt Financing | 2025-10-14 |
| 8 |
Quaise Energy
Quaise is an energy company that develops a millimeter-wave drilling technology …
|
Cambridge | 11 - 50 | $91.0M | Series A | 2023-12-12 |
| 9 |
Mazama
Mazama Energy is a geothermal operator and development firm committed to develop…
|
Seattle | 11 - 50 | $36.0M | Series A | 2025-10-28 |
| 10 |
XGS Energy
XGS Energy is a geothermal heat harvesting technology company.
|
Palo Alto | 11 - 50 | $57.0M | Series Unknown | 2025-03-26 |
| 11 |
Factor2 Energy
Factor2 Energy developed a geothermal system that uses carbon dioxide instead of…
|
Duisburg | 1 - 10 | $9.1M | Seed | 2025-09-19 |
| 12 |
GA Drilling
GA Drilling is developing a groundbreaking drilling technology PLASMABIT that en…
|
Trnava | 51 - 100 | $178.7M | Series Unknown | 2026-03-03 |
| 13 |
Baseload Capital
Baseload Capital is a Specialized Investment Entity investing in Heat Power.
|
Stockholm | 11 - 50 | $146.9M | Corporate Round | 2025-04-15 |
| 14 |
Pertamina Geothermal Energy
Pertamina Geothermal Energy is adding value by improving end-to-end management o…
|
Jakarta | 501 - 1K | — | Corporate Round | 2023-02-24 |
| 15 |
PT Geo Dipa Energi
PT Geo Dipa Energi is a geothermal Energy Company through Geodipa Personnel, Ope…
|
Dki Jakarta | 251 - 500 | $230.0M | Debt Financing | 2025-10-31 |
| 16 |
Orkuveitan
Orkuveitan is an energy and utility company that deals with data utility network…
|
Reykjavík | 501 - 1K | $290.1M | Debt Financing | 2025-11-17 |
| 17 |
Dig Energy
Dig Energy produces purpose-built drilling technology to create highly efficient…
|
Manchester | 1 - 10 | $5.0M | Seed | 2025-09-09 |
| 18 |
Climate Transition Development
Climate Transition Development excels renewables with Green Snow, advancing geot…
|
Santa Monica | 11 - 50 | $3.0M | Seed | 2022-09-01 |
| 19 |
GreenFire Energy
GreenFire Energy delivers geothermal solutions that assure the availability of r…
|
Walnut Creek | 11 - 50 | $22.6M | Series A | 2022-03-01 |
| 20 |
Enel Green Power Hellas
Enel Green Power Hellas is a fully-owned subsidiary of Enel Green Power.
|
Athens | 5K - 10K | $382.2M | Secondary Market | 2023-07-26 |
| 21 |
Électricité de France
EDF is an electric utility company that provides heat humps. wind turbines, phot…
|
Paris | c 10001 max | $11.8B | Debt Financing | 2025-09-29 |
| 22 |
Borobotics
Borobotics is a manufacturing company that offers autonomous drilling robot inte…
|
Winterthur | 1 - 10 | $1.6M | Seed | 2025-01-15 |
| 23 |
Sinopec Green Energy
Sinopec Green Energy is a joint venture established by Sinopec Star and Arctic G…
|
Baoding | 501 - 1K | $200.0M | Private Equity | 2020-12-15 |
| 24 |
Rendesco
Rendesco's mission is to transform the heating business by creating geothermal n…
|
London | 11 - 50 | $7.7M | Series Unknown | 2024-06-13 |
| 25 |
Supreme Energy
Supreme Energy is an energy company that offers geothermal exploration and produ…
|
Kebayoran Baru | 101 - 250 | $92.6M | Debt Financing | 2025-01-14 |
| 26 |
TerraDX Technologies Inc.
AI, Natural Resources, Disruptive Technology
|
Vancouver | 11 - 50 | $1.1M | Pre Seed | 2023-12-31 |
| 27 |
QHeat
QHeat is a geothermal energy technology company
|
Helsinki | 1 - 10 | $2.5M | Debt Financing | 2022-02-01 |
| 28 |
TEVERRA
TEVERRA is all about making the best and safest use of the Earth as a clean and …
|
Atlanta | 11 - 50 | $5.0M | Grant | 2025-06-30 |
| 29 |
EVUS
Evus develops a permanent magnet induction heating and antifouling device, to so…
|
Las Cruces | 11 - 50 | $700K | Pre Seed | 2021-10-01 |
| 30 |
Filio
Filio is AI-powered field documentation: capture photos, videos, 360 media, and …
|
Atlanta | 1 - 10 | $180K | Pre Seed | 2020-01-07 |
| 31 |
ElleThermo
ElleThermo is an energy company that specializes in the manufacturing and sales …
|
Minato | 1 - 10 | $2.5M | Seed | 2024-09-05 |
| 32 |
Bluestone Resources
Bluestone Resources is a natural resource company that explores and develops min…
|
Vancouver | 11 - 50 | $203.2M | Post Ipo Debt | 2022-03-14 |
| 33 |
Geothermal Technologies
Geothermal Technologies is a geothermal energy exploration and production compan…
|
Baltimore | 11 - 50 | $1.6M | Grant | 2021-11-22 |
| 34 |
Terrapin Geothermics
Terrapin Geothermics specializes exclusively in finding and utilizing heat to dr…
|
Edmonton | 1 - 10 | $19.0M | Non Equity Assistance | 2021-04-14 |
| 35 |
Astra Innovations
Astra Innovations is a developer of next-generation tools for the energy sector.
|
Houston | 1 - 10 | $500K | Pre Seed | 2020-01-20 |
| 36 |
Matorka
Matorka is a pioneer in producing environmentally friendly and sustainable seafo…
|
K├│pavogur | 1 - 10 | $6.7M | Series Unknown | 2016-07-25 |
| 37 |
Groupe Beaudoin
Beaudoin Group offers plumbing, heating, geothermal energy, and natural gas serv…
|
Lévis | 251 - 500 | $1.0M | Series Unknown | 2021-03-23 |
| 38 |
Forager Station
Forager Station is a startup that strives to commercialize electrochemical direc…
|
Frederick | 1 - 10 | $25K | Pre Seed | 2025-05-20 |
| 39 |
First Gen
First Gen offers power generation, power distribution, infrastructure, manufactu…
|
Pasig | 501 - 1K | $693.0M | Post Ipo Equity | 2020-07-02 |
| 40 |
Marmott Energy
Marmott Energy specializes in providing geothermal energy to the residential mar…
|
Montreal | 11 - 50 | $1.7M | Debt Financing | 2017-05-09 |
| 41 |
United Technologies Corporation
United Technologies provides a broad range of high-technology products and servi…
|
Hartford | c 10001 max | $3.5M | Post Ipo Equity | 2018-02-28 |
| 42 |
AltaRock Energy
AltaRock Energy focuses on the development of geothermal energy resources and En…
|
Seattle | 11 - 50 | $36.5M | Series Unknown | 2008-08-20 |
| 43 |
Quad Geometrics
Quad Geometrics provides products and services for earth observation to the ener…
|
Carlsbad | 11 - 50 | $2.9M | Convertible Note | 2016-07-15 |
| 44 |
Stalsmidjan Framtak
Stalsmidjan Framtak provides automated anode fork repair system for the aluminiu…
|
Garðabær, Iceland | 51 - 100 | $56K | Grant | 2017-06-01 |
| 45 |
BIOEFFECT
BIOEFFECT's face moisturizers and other skin care products will reduce signs of …
|
K├│pavogur, Iceland | 1 - 10 | $491K | Grant | 2016-03-01 |
| 46 |
Zelandez Holding
Zelandez Holding is a Lithium Technology Services company focused on Engineering…
|
Wellington | 51 - 100 | $14K | Grant | 2024-07-09 |
| 47 |
RENOVA Japan
Renova is a business company that develops and operates power generation facilit…
|
Tokyo | 251 - 500 | $14.2M | Post Ipo Equity | 2019-01-01 |
| 48 |
Geoflow Imaging
GeoFlow Imaging is a tech company using passive seismic imaging to identify high…
|
Auckland | 1 - 10 | $9K | Grant | 2023-09-26 |
| 49 |
Alterra Power Corp
Alterra Power Corp is a power generation company that specializes on geothermal …
|
Vancouver | 51 - 100 | $8.9M | Post Ipo Debt | 2016-10-12 |
| 50 |
Loki Geothermal
Innovative company in the field of geothermal power production.
|
Reykjavík | 1 - 10 | $381K | Grant | 2016-03-01 |