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Top 100 Key Players companies in Geothermal energy
by Most Market Reports in the world in 2021

The Geothermal energy top 100 is Discovery PatSnap’ annual ranking of the top 100 Most Market Reports Geothermal energy Key Players in the world. Discovery has identified the top key players, startups & unicorns, fast-growings, news entrants in 2021, ranking from differnt perspectives, including patent filing intensity, academic research capability, news media heat. The company list is generated from various data types.
Geothermal energy is thermal energy generated and stored in the Earth. Thermal energy is the energy that determines the temperature of matter. The geothermal energy of the Earth's crust originates from the original formation of the planet and from radioactive decay of materials (in currently uncertain but possibly roughly equal proportions). The geothermal gradient, which is the difference in temperature between the core of the planet and its surface, drives a continuous conduction of thermal energy in the form of heat from the core to the surface. The adjective geothermal originates from the Greek roots γη (ge), meaning earth, and θερμος (thermos), meaning hot.
#
Company Name
Region
Tech Topics
Total
1
Ormat Technologies, Inc.
Renewable energy,Geothermal energy,Electricity,
...[+2]
market report: 17
2
BrightSource Energy, Inc.
Solar energy,Solar power,Fossil fuel,
...[+2]
market report: 17
3
Baltimore Aircoil Co.
Air conditioning,Heat transfer,Cooling tower,
...[+2]
market report: 13
4
General Electric Co.
Energy management,Turbine,Electronics,
...[+2]
market report: 12
5
Calpine Corp.
Geothermal power,Geothermal energy,Power transmission,
...[+2]
market report: 12
6
Enel SpA
Smart meter,Electricity,Petroleum industry,
...[+2]
market report: 10
7
Abengoa SA
Renewable energy,Solar power,Biofuel,
...[+2]
market report: 10
8
Burns & McDonnell, Inc.
Architecture,Design firm,Construction engineering,
...[+2]
market report: 10
9
TOSHIBA Corp.
Semiconductor,Computer hardware,Electronics,
...[+2]
market report: 8
10
Fuji Electric Co., Ltd.
Power electronics,Electronics,Electrical equipment,
...[+2]
market report: 8
11
Abengoa Solar SA
Parabolic trough,Solar power,Power transmission,
...[+2]
market report: 8
12
Calmac Manufacturing Corp.
Thermal energy storage,Renewable energy,Energy storage,
...[+2]
market report: 8
13
Caldwell Energy Co.
Turbine,Electronics,Geothermal energy,
...[+2]
market report: 8
14
Siemens AG
Power transmission,Electronics,Turbine,
...[+2]
market report: 7
15
Chevron Corp.
Lubricant,Petroleum,Petroleum industry,
...[+2]
market report: 7
16
NIBE Industrier AB
Heat pump,Sustainable energy,Mechanical engineering,
...[+2]
market report: 7
17
Aboitiz Power Corp.
Manila, Philippines
Geothermal energy,Power transmission,Electric power transmission,
...[+2]
market report: 7
18
Enel Green Power SpA
Wind power,Geothermal energy,Photovoltaics,
...[+2]
market report: 7
19
SolarReserve, Inc.
Renewable energy,Solar energy,Solar power,
...[+2]
market report: 7
20
ENGIE SA
Natural gas,Electricity,Renewable energy,
...[+2]
market report: 6
21
Mitsubishi Heavy Industries, Ltd.
Aerospace,Electronics,Manufacturing engineering,
...[+2]
market report: 6
22
EVAPCO, Inc.
Refrigeration,Electronics,Cooling tower,
...[+2]
market report: 6
23
Trane Technologies Plc
Sustainable business,Refrigeration,Air conditioning,
...[+2]
market report: 5
24
Acciona SA
Renewable energy,Portable water purification,Electricity,
...[+2]
market report: 5
25
Électricité de France SA
Power transmission,Electricity,Energy management,
...[+2]
market report: 5
26
Danfoss A/S
Air conditioning,Solenoid,Electric motor,
...[+2]
market report: 5
27
Robert Bosch GmbH
Automotive engineering,Mechanical engineering,Electronics,
...[+2]
market report: 5
28
DN Tanks, Inc.
Araucanía, Chile
Thermal energy storage,Renewable energy,Prestressed concrete,
...[+2]
market report: 5
29
PT Pertamina Geothermal Energy
Geothermal energy,Geothermal power,Renewable energy,
...[+2]
market report: 5
30
ABB Ltd.
Robotics,Electrical equipment,Public transport,
...[+2]
market report: 4
31
E.ON SE
Renewable energy,Electricity,Petroleum industry,
...[+2]
market report: 4
32
Mitsubishi Electric Corp.
Automation,Computer hardware,Electrical equipment,
...[+2]
market report: 4
33
Schlumberger NV
Software,Data mining,Petroleum industry,
...[+2]
market report: 4
34
Halliburton Co.
Artificial lift,Natural resource management,Renewable energy,
...[+2]
market report: 4
35
Vestas Wind Systems A/S
Turbine,Wind power,Renewable energy,
...[+2]
market report: 4
36
Ørsted A/S
Wind power,Bioenergy,Energy storage,
...[+2]
market report: 4
37
Siemens Gamesa Renewable Energy SA
Turbine,Renewable energy,Wind power,
...[+2]
market report: 4
38
SaltX Technology Holding AB
Energy storage,Discharge,Customer relationship management,
...[+2]
market report: 4
39
Berkshire Hathaway Energy Co.
Renewable energy,Solar energy,Black liquor,
...[+2]
market report: 4
40
Sener Grupo De Ingeniería S.A.
Aerospace,Facility management,Thermal energy storage,
...[+2]
market report: 4
41
Alterra Power Corp.
Geothermal power,Renewable energy,Solar energy,
...[+2]
market report: 4
42
U.S. Geothermal, Inc.
Geothermal energy,Renewable energy,Electronics,
...[+2]
market report: 4
43
Ansaldo Energia SpA
Turbine,Independent Power Producer,Power transmission,
...[+2]
market report: 4
44
TAS Energy, Inc.
Energy system,Power transmission,Geothermal energy,
...[+2]
market report: 4
45
Aalborg CSP A/S
Solar energy,Solar power,Energy system,
...[+2]
market report: 4
46
Alternative Energy Development Corp. Aedc
South Africa
Efficient energy use,Social entrepreneurship,Energy products,
...[+2]
market report: 4
47
Terrafore Technologies LLC
Renewable energy,Thermal energy storage,Efficient energy use,
...[+2]
market report: 4
48
Enel Green Power North America Renewable Energy Partners LLC
Renewable energy,Geothermal energy,Power transmission,
...[+1]
market report: 4
49
Turboden SRL
Turbo generator,Geothermal power,Electronics,
...[+2]
market report: 4
50
Stiebel Eltron sro
Czechia
market report: 4
51
RWE AG
Electricity,Electricity generation,Petroleum industry,
...[+2]
market report: 3
52
Alstom SA
Public transport,Power transmission,Efficient energy use,
...[+2]
market report: 3
53
DAIKIN INDUSTRIES Ltd.
Air conditioning,Refrigeration,Mechanical engineering,
...[+2]
market report: 3
54
Tohoku Electric Power Co., Inc.
Power transmission,Electricity,Electric power transmission,
...[+2]
market report: 3
55
Baker Hughes Co.
Petroleum industry,Well drilling,Turbomachinery,
...[+2]
market report: 3
56
Innergex Renewable Energy, Inc.
Renewable energy,Geothermal power,Wind power,
...[+2]
market report: 3
57
Korea Electric Power Corp.
Power transmission,Electricity,Electric power transmission,
...[+2]
market report: 3
58
Yingli Green Energy Holding Co. Ltd.
Solar energy,Photovoltaics,Polystyrene,
...[+2]
market report: 3
59
Carrier Corp.
Refrigeration,Air conditioning,Mechanical engineering,
...[+2]
market report: 3
60
Chicago Bridge & Iron Co. BV
Construction engineering,Cisco Catalyst,Gasoline,
...[+2]
market report: 3
61
Kenya Electricity Generating Co. Plc
Kenya
Electricity,Geothermal energy,Geothermal power,
...[+2]
market report: 3
62
Comision Federal de Electricidad
Distrito Federal, Mexico
Electricity,Power transmission,Uninterruptible power supply,
...[+2]
market report: 3
63
Ice Energy Holdings, Inc.
Energy storage,Thermal energy storage,Renewable energy,
...[+2]
market report: 3
64
Ansaldo Energia
Turbine,Steam turbine,Renewable energy,
...[+2]
market report: 3
65
Steffes Corp.
Contract Manufacturing,Metal,Geothermal energy,
...[+2]
market report: 3
66
Huisman Equipment BV
Lifting equipment,Manufacturing engineering,Construction engineering,
...[+2]
market report: 3
67
FAFCO, Inc.
Solar energy,Thermal energy storage,Heating system,
...[+2]
market report: 3
68
Toshiba Energy Systems & Solutions Corp.
Power transmission,Electricity,Proton exchange membrane fuel cell,
...[+2]
market report: 3
69
Kensa Heat Pumps Ltd.
Heat pump,Automation,Manufacturing engineering,
...[+2]
market report: 3
70
Aquatherm Industries, Inc.
Renewable energy,Electricity,Uninterruptible power supply
market report: 3
71
BASF SE
Agriculture,Petrochemical,Chemical engineering,
...[+2]
market report: 2
72
Panasonic Holdings Corp.
Semiconductor,Industrial engineering,Electronics,
...[+2]
market report: 2
73
Schneider Electric SE
Energy management,Software,Renewable energy,
...[+2]
market report: 2
74
Berkshire Hathaway, Inc.
Property insurance,Reinsurance,Aviation,
...[+2]
market report: 2
75
Duke Energy Corp.
Natural gas,Electricity,Computer hardware,
...[+2]
market report: 2
76
Mitsubishi Materials Corp.
Cement,Alloy,Polycrystalline silicon,
...[+2]
market report: 2
77
EDP-Energias de Portugal SA
Lisboa, Portugal
Renewable energy,Petroleum industry,Electric power transmission,
...[+2]
market report: 2
78
Johnson Controls International Plc
Cork, Ireland
Physical security,Air conditioning,Lithium-ion battery,
...[+2]
market report: 2
79
EnBW Energie Baden Württemberg AG
Electricity,Energy management,Electric power transmission,
...[+2]
market report: 2
80
Kyushu Electric Power Co., Inc.
Electronics,Nuclear reactor,Natural uranium,
...[+2]
market report: 2
81
The Kansai Electric Power Co., Inc.
Telecommunications,Energy management,Electric utility,
...[+2]
market report: 2
82
Canadian Solar, Inc.
Solar energy,Solar cell,Solar power,
...[+2]
market report: 2
83
NextEra Energy, Inc.
Renewable energy,Electricity,Electricity generation,
...[+2]
market report: 2
84
Fluor Corp.
Construction engineering,Project management,Civil engineering,
...[+2]
market report: 2
85
The Southern Co.
Natural gas,Renewable energy,Electricity,
...[+2]
market report: 2
86
Trina Solar Co., Ltd.
Solar energy,Crystalline silicon,Renewable energy,
...[+2]
market report: 2
87
Lennox International, Inc.
Refrigeration,Air conditioning,Fast-moving consumer goods,
...[+2]
market report: 2
88
Tokyo Electric Power Co. Holdings, Inc.
Power grid,Association (object-oriented programming),Electricity,
...[+2]
market report: 2
89
CEZ as
PRAGUE, Czechia
Electricity,Power transmission,Electric power transmission,
...[+2]
market report: 2
90
Electricity Generating Public Co., Ltd.
Bangkok Metropolis, Thailand
Electricity,Power transmission,Petroleum industry,
...[+2]
market report: 2
91
United Technologies Corp.
Elevator,Aerospace systems,General aviation,
...[+2]
market report: 2
92
Hokkaido Electric Power Co., Inc.
Power transmission,Electricity,Telecommunications,
...[+2]
market report: 2
93
McDermott International, Inc.
Hydrocarbon,Civil engineering,Water storage,
...[+2]
market report: 2
94
Federal Hydro-Generating Co. RusHydro PJSC
Russia
Electricity,Hydropower,Renewable energy,
...[+2]
market report: 2
95
Glen Dimplex Europe Holdings Ltd.
Dublin, Ireland
Renewable energy,Heat pump,Refrigeration,
...[+2]
market report: 2
96
Huaneng Renewables Corp. Ltd.
Wind power,Renewable energy,Solar energy,
...[+2]
market report: 2
97
PT Pertamina (Persero)
Renewable energy,Natural gas,Mining engineering,
...[+2]
market report: 2
98
The Dow Chemical Co.
Coating,Agriculture,Chemical engineering,
...[+2]
market report: 2
99
SCHOTT AG
Glazing,Optics,Aviation,
...[+2]
market report: 2
100
EthosEnergy Group Ltd.
Drill bit,Renewable energy
market report: 2
Page generation time: Jun 27 2025