The nuclear thermal power sector is a versatile industry that comprises companies engaged in various activities from designing, building, and maintaining nuclear power plants to producing nuclear fuels and developing advanced reactor technologies. While some companies focus on the operational aspect, offering complex operations management and environmental management services, others specialize in nuclear propulsion technologies or nuclear medicine and research. The industry is evolving with a strong focus on value-added technologies and innovative solutions. This evolution is energizing the development of new reactor technologies with the industry's eye on the future ready to meet the world's growing energy needs.


Top 28 Nuclear Thermal Power Companies

1. Areva

  • Website: areva.com
  • Headquarters: Paris La Defense, France, France
  • Founded: 2001
  • Headcount: 10001+
  • LinkedIn

AREVA is a nuclear energy company that specializes in designing, building, maintaining, and advancing nuclear power plants worldwide. They offer innovative solutions and value-added technologies for the global nuclear fleet. With expertise in component manufacturing, fuel production, and reactor services, AREVA plays a major role in the nuclear energy market.


2. BWX Technologies, Inc.

  • Website: bwxt.com
  • Headquarters: Lynchburg, Virginia, United States
  • Founded: 1867
  • Headcount: 5001-10000
  • Latest funding type: Post Ipo Debt
  • LinkedIn

BWXT is a nuclear technology company that specializes in a wide range of products and services related to nuclear power, such as naval nuclear propulsion, commercial nuclear components, nuclear fuel, and strategic nuclear materials. They also provide complex operations management, environmental management, nuclear medicine, research, and advanced technologies.


3. GE Power & Water

  • Website: gepower.com
  • Headquarters: Alvaro Obregon, Cdmx, Mexico
  • Founded: 1998
  • Headcount: 10001+
  • LinkedIn

GE Hitachi Nuclear Energy (GEH) is a world-leading provider of advanced reactor technology, fuel, and nuclear services. They offer solutions and services in the nuclear power industry, including the BWRX-300, NATRIUM, ESBWR, ABWR, and PWR technologies.


4. Societatea Nationala Nuclearelectrica SA

  • Website: nuclearelectrica.ro
  • Headquarters: Bucharest, Choose From Lis, Romania
  • Founded: 1998
  • Headcount: 1001-5000
  • Latest funding type: Ipo
  • LinkedIn

Nuclearelectrica is a Romanian company registered under the Ministry of Energy that specializes in the production of nuclear fuel and thermal and electric energy. They are also involved in investment and development projects related to nuclear power plants in Romania.


5. Usnc

  • Website: usnc.com
  • Headquarters: Seattle, Washington, United States
  • Founded: 2011
  • Headcount: 51-200
  • Latest funding type: Series A
  • LinkedIn

Ultra Safe Nuclear is a company that specializes in the development of advanced nuclear technologies. They offer innovative solutions for clean and reliable zero-carbon energy production. With a focus on Nuclear Thermal Propulsion (NTP) systems and radioisotope-powered spacecraft, they are at the forefront of cutting-edge technology in the nuclear industry.


6. Terrestrial Energy

Terrestrial Energy is a technology company that offers carbon-free and cost-competitive nuclear energy through its transformative advanced reactor, the Integral Molten Salt Reactor (IMSR®). Their innovative technology allows for the generation of high-temperature heat and electric power for various industrial uses, with significantly reduced carbon emissions compared to fossil fuel burning. They aim to revolutionize the energy industry by providing a scalable, reliable, and economical alternative to traditional nuclear power plants.


7. Radiant

  • Website: radiantnuclear.com
  • Headquarters: El Segundo, California, United States
  • Founded: 2019
  • Headcount: 11-50
  • Latest funding type: Series A
  • LinkedIn

Radiant Nuclear is a company that specializes in the development and production of compact nuclear reactors. Their flagship product, Kaleidos, offers a safe and efficient alternative to traditional diesel generators for power generation. With advanced technology and high-energy density, Kaleidos eliminates the need for expensive and dirty diesel fuel, unreliable power grids, and long deployment timelines.


8. Hatch

  • Website: hatch.com
  • Headquarters: Mississauga, Ontario, Canada
  • Founded: 1955
  • Headcount: 5001-10000
  • LinkedIn

Hatch.com is a company that specializes in providing innovative solutions for various industries including pipeline capacity expansion, energy projects, hydroelectric redevelopment, nuclear generating stations, power plant maintenance, dam safety, carbon capture utilization and sequestration, and more.


9. Atomenergomash Group

  • Website: aem-group.ru
  • Headquarters: Moscow, Moscow, Russian Federation
  • Founded: 2006
  • Headcount: 10001+
  • LinkedIn

AEM-Group is a company specializing in the production and servicing of equipment for the nuclear, thermal, chemical, and shipbuilding industries. They offer a wide range of products and services, including nuclear power systems, heat and power generation equipment, petrochemical plants, and ship propulsion systems.


10. Harbin Electric Company Limited

China-hei.com is a company that specializes in international engineering projects. They offer a range of services including engineering design, construction, and project management. With a focus on energy and power projects, the company has extensive experience in providing solutions for renewable energy, thermal power, and other types of power generation.


11. ZAT a.s.

  • Website: zat.cz
  • Headquarters: Příbram, Česká Republika, Czechia
  • Founded: 1962
  • Headcount: 201-500
  • LinkedIn

ZAT is a company that specializes in the development and manufacturing of control systems for power plants. They offer solutions for various industries such as biogas stations, transportation, nuclear energy, medical, natural gas, smart buildings, thermal energy, water energy, water management, manufacturing companies, industrial electronics, and custom software development.


12. Secin S.A.

  • Website: secin.com.ar
  • Headquarters: Quilmes Oeste, Buenos Aires, Argentina
  • Founded: 1978
  • Headcount: 201-500
  • LinkedIn

SECIN S.A. is a group of professionals specialized in the manufacture of capital goods, constantly seeking technological solutions. With over 45 years of experience, SECIN S.A. produces machines and equipment for various industrial sectors.


13. ILD, Incorporated

  • Website: ildpower.com
  • Headquarters: Baton Rouge, Louisiana, United States
  • Founded: 1981
  • Headcount: 11-50
  • LinkedIn

ILD, Inc. is an engineering consulting company in the United States specializing in evaluation and consulting services for various industries including nuclear power plants, petro-chemical plants, and pulp & paper mills. With over 40 years of experience, ILD offers dynamic and precise services to energy companies.


14. ADEX Adaptive Predictive Expert Control

  • Website: adexcop.com
  • Headquarters: Madrid, Madrid, Spain
  • Founded: 2005
  • Headcount: 11-50
  • Latest funding type: Grant
  • LinkedIn

ADEX is a company that has developed and patented a disruptive control system technology for power plant instrumentation and control optimization using self-tuning AI. They offer their technology through integration with partners' systems or equipment, known as 'ADEX Inside', allowing third parties to leverage adaptive predictive features to enhance their products or services.


15. JSC AtomStroyExport

  • Website: ase-ec.ru
  • Headquarters: Moscow, Moscow City, Russian Federation
  • Headcount: 10001+
  • LinkedIn

ASE-EC.ru is a company offering products and services in the field of engineering and construction. They specialize in designing and building nuclear power plants, providing testing services for thermal insulation materials, and implementing comprehensive management systems for project planning. The company is committed to sustainable development, ensuring production safety, and promoting innovation in the nuclear energy industry.


16. newcleo

  • Website: newcleo.com
  • Headquarters: West End, England, Bahamas
  • Founded: 2021
  • Headcount: 51-200
  • Latest funding type: Series Unknown
  • LinkedIn

newcleo is a company offering a unique circular, next-generation nuclear energy solution. They are innovating the nuclear energy industry to play their part in climate change mitigation and global decarbonisation.


17. TITAN Metal Fabricators

  • Website: titanmf.com
  • Headquarters: Camarillo, California, United States
  • Founded: 1998
  • Headcount: 51-200
  • LinkedIn

TITAN Metal Fabricators is a company specializing in the manufacturing of highly cost-effective process equipment such as reactors, heat exchangers, pressure vessels, and piping systems. With expertise in reactive metals and corrosion-resistant alloys, TITAN offers customized solutions to solve challenging corrosion, application, mechanical, and thermal design issues.


18. CTP environnement group

CTP environnement group is a specialist in industrial chemical cleaning and effluent treatment with mobile units. They offer a complete range of services for cleaning and maintaining various equipment such as boilers, condensers, and coolers. They also provide solutions for effluent treatment and compliance with regulations. With their expertise and patented processes, CTP ensures efficient and safe results in energy optimization and waste management. They serve a wide range of industries including nuclear, power plants, and refineries.


19. J-power

  • Website: jpower.co.jp
  • Headquarters: Tokyo, Tokyo, Japan
  • Founded: 1952
  • Headcount: 1001-5000
  • Latest funding type: Ipo
  • LinkedIn

J-POWER is a company that operates power plants and provides electricity generation services. They specialize in the development, construction, maintenance, and operation of power facilities. Their offerings include the production and supply of electricity from various sources, such as thermal, hydro, and renewable energy.


20. SEPCOIII Electric Power Construction Co., Ltd.

SEPCOIII is a global engineering corporation specializing in the construction of various types of projects, including concentrated solar power, photovoltaic power, energy storage, wind power, nuclear power, seawater desalination, biomass power, thermal power, substations, and infrastructure.


21. EDRA Power Holdings Sdn Bhd

Edra Energy is a power company specializing in energy generation and distribution. They have a diverse portfolio of assets in Malaysia, the Middle East, North Africa, and South Asia. With a strong focus on sustainability, Edra Energy is committed to providing reliable and efficient energy solutions.


22. NINE Nuclear and INdustrial Engineering S.R.L.

NINE Nuclear and Industrial Engineering is a private company specializing in Nuclear Fission power plant technology. Our services include Licensing, Safety Analysis, Computer Codes development, NPP design and optimization, Test facilities Design, and Consulting.


23. Innomerics

Innomerics is a company that specializes in providing software tools and solutions for nuclear power plants. They offer a tailored software tool called PIEGE, which supports the development of the Integrated Plant Assessment in the Reactor License Renewal Process. With expertise in compliance with regulatory requirements, Innomerics can adapt their software to meet the aging evaluation directives of different countries.


24. copenhagen atomics

Copenhagen Atomics is a company focused on developing, building, maintaining, and decommissioning a fleet of autonomous thorium reactors. They sell energy as a service by transferring heat via 560°C hot salt to their customers, metered by the MWh.


25. Renew Holdings plc

  • Website: renewholdings.com
  • Headquarters: Leeds, Leeds, United Kingdom
  • Founded: 1786
  • Headcount: 1001-5000
  • Latest funding type: Ipo
  • LinkedIn

Renew Holdings plc is a leading provider of infrastructure services in the UK. They specialize in asset maintenance and renewals across various sectors, including rail, energy, environmental, and specialist building projects.


26. Thermogen Power

Thermogen Power Services is a respected leader in the power plant performance testing industry, providing high accuracy independent performance tests for power plants globally. They offer services such as performance training, thermal modeling, data measurement, and performance testing of various power plant technologies. With expertise in combined cycle, gas turbine, steam turbine, fired boiler, concentrated solar, and reciprocating engine systems, they help power plants improve their efficiency and financial performance. Contact them for expert advice and services in English, Spanish, and French.


27. STEAG Energy Services do Brasil

  • Website: steag.com.br
  • Headquarters: Rio De Janeiro, Rio De Janeiro, Brazil
  • Founded: 2002
  • Headcount: 51-200
  • LinkedIn

STEAG is a company that specializes in energy services and solutions. They offer consulting, planning, development, construction, operation, maintenance, and optimization services for various energy technologies including renewable energies, thermal energy, and nuclear technologies. They also provide training and HR development programs. STEAG has subsidiaries and works with EPC contractors and suppliers. They serve a wide range of customers in the industrial energy sector and are involved in projects worldwide.


28. Doosan Babcock

Doosan Babcock is a leading provider of essential quality services supporting safe, reliable, cost-effective nuclear power generation. They offer precision combustion systems for cleaner and greener NOx reduction, with a range of systems and fuels. They also offer cost-effective fitting and upgrade services, post-combustion NOx reduction solutions, and biomass co-firing systems.


Want to find more nuclear thermal power companies?


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