Nuclear Reactor Construction Market Report 2026

The nuclear reactor construction market size has grown strongly in recent years. It will grow from $54.38 billion in 2025 to $57.43 billion in 2026 at a compound annual growth rate (CAGR) of 5.6%. The growth in the historic period can be attributed to rising global demand for nuclear energy, increasing adoption of SMRs, reliance on high-precision components, expansion of government-backed nuclear projects, growth in research and development programs.

The nuclear reactor construction market size is expected to see strong growth in the next few years. It will grow to $70.68 billion in 2030 at a compound annual growth rate (CAGR) of 5.3%. The growth in the forecast period can be attributed to increasing deployment of advanced reactor technologies, rising adoption of digital project management tools, development of modular and turnkey reactor solutions, expansion of low-carbon electricity infrastructure, growth in nuclear safety and monitoring systems. Major trends in the forecast period include integration of advanced nuclear reactor technologies, deployment of smart construction monitoring systems, adoption of generation iii and iv reactors, implementation of AI-based project planning, expansion of modular and smr deployment.

The rising need for clean energy is expected to drive the growth of the nuclear reactor construction market in the coming years. Clean energy refers to power generated from renewable or low-emission sources that minimize environmental impact and reduce greenhouse gas emissions. Demand for clean energy is increasing due to growing awareness of environmental sustainability, as it helps lower greenhouse gas emissions and combat climate change. Nuclear reactors support clean energy efforts by providing a reliable, large-scale, and low-carbon power source, enabling stable and sustainable electricity generation. For example, in June 2024, the International Energy Agency, a France-based intergovernmental organization, reported that worldwide investment in clean energy reached $80 billion in 2024, up from $67 billion in 2023. Therefore, the rising need for clean energy is fueling the growth of the nuclear reactor construction market.

Key companies in the nuclear reactor construction market are focusing on advancements in nuclear technology, such as bilateral nuclear reactor development agreements, to enhance advanced nuclear energy capabilities and promote deployment of next-generation reactor technologies. A bilateral nuclear reactor development agreement is a formal, legally binding arrangement between two sovereign nations aimed at jointly developing, constructing, or deploying nuclear reactor technologies. For instance, in October 2025, Slovakia’s Prime Minister Robert Fico announced a government-approved agreement with the United States to develop a new nuclear reactor at the Jaslovské Bohunice site in western Slovakia. The planned reactor, expected to generate over 1,000 megawatts, will be fully state-owned and represents a multi-billion-euro investment to expand Slovakia’s nuclear energy capacity. The project involves collaboration with U.S. nuclear technology providers and aligns with regional trends of nuclear expansion in Central and Eastern Europe, supporting energy security, clean electricity generation, and long-term infrastructure modernization.

In October 2024, Google LLC, a US-based technology and internet services company, partnered with Kairos Power LLC for an undisclosed amount. This partnership aims to advance clean energy innovation by supporting the development and deployment of advanced nuclear reactor technology to help achieve carbon-free energy goals. Kairos Power LLC is a US-based company specializing in advanced nuclear reactor design and construction.

Major companies operating in the nuclear reactor construction market are Rosatom State Atomic Energy Corporation, Mitsubishi Heavy Industries Ltd., Larson & Turbo Limited, Rolls-Royce Holdings plc, Shanghai Electric Group Company Limited, Bechtel Corporation, Fluor Corporation, Jacobs Engineering Group Inc., Doosan Enerbility Co. Ltd., China National Nuclear Corporation (CNNC), Dongfang Electric Corporation, Bilfinger SE, Framatome SAS, BWX Technologies Inc., Hitachi-GE Nuclear Energy Ltd., Holtec International, Terra Power LLC, KEPCO Engineering & Construction, Westinghouse Electric Company LLC, Kairos Power LLC, SKODA JS a.s.

Note that the outlook for this market is being affected by rapid changes in trade relations and tariffs globally. The report will be updated prior to delivery to reflect the latest status, including revised forecasts and quantified impact analysis. The report’s Recommendations and Conclusions sections will be updated to give strategies for entities dealing with the fast-moving international environment.

Tariffs are influencing the nuclear reactor construction market by increasing costs for imported steel, reactor components, safety systems, and specialized instrumentation essential for reactor projects. Pressurized water, boiling water, and small modular reactors in Asia-Pacific, Europe, and North America are most affected due to reliance on imported high-precision components. Nevertheless, tariffs are promoting domestic manufacturing of reactor components, regional fabrication, and innovation in modular and safety-enhanced reactors, strengthening long-term construction efficiency and project viability.

The nuclear reactor construction market research report is one of a series of new reports that provides nuclear reactor construction market statistics, including nuclear reactor construction industry global market size, regional shares, competitors with a nuclear reactor construction market share, detailed nuclear reactor construction market segments, market trends and opportunities, and any further data you may need to thrive in the nuclear reactor construction industry. This nuclear reactor construction market research report delivers a complete perspective of everything you need, with an in-depth analysis of the current and future scenario of the industry.

Nuclear reactor construction refers to the process of planning, designing, and building nuclear power facilities that house reactors for controlled nuclear fission. It includes activities such as site preparation, reactor installation, and implementation of safety and cooling systems. Its key purpose is to create infrastructure for generating large-scale, low-carbon electricity and supporting scientific or industrial applications.

The key reactor types in nuclear reactor construction include pressurized water reactors (PWR), boiling water reactors (BWR), pressurized heavy water reactors (PHWR), gas-cooled reactors (GCR), fast neutron reactors (FNR), and small modular reactors (SMR). Pressurized water reactors (PWRs) use high-pressure water as both coolant and moderator to transfer heat from the reactor core to a secondary system, producing steam to generate electricity. They employ advanced technologies such as Generation III reactors, Generation IV reactors, and other advanced reactor technologies, with construction stages including turnkey contracts, engineering, procurement and construction (EPC), design-build contracts, and construction management. Key applications include baseload electricity generation, desalination and process heat, marine propulsion, load balancing and peak demand, and district heating and cogeneration, serving end-users such as utilities, government bodies, research organizations, and more.North America was the largest region in the nuclear reactor construction market in 2025. Asia-Pacific is expected to be the fastest-growing region in the forecast period. The regions covered in nuclear reactor construction report are Asia-Pacific, Western Europe, Eastern Europe, North America, South America, Middle East and Africa. The countries covered in the nuclear reactor construction market report are Australia, Brazil, China, France, Germany, India, Indonesia, Japan, Russia, South Korea, UK, USA, Canada, Italy, Spain.

The nuclear reactor construction market includes revenues earned by entities through project management, site assessment, regulatory compliance consulting, safety system integration, equipment testing, waste handling system setup, and decommissioning support services. The market value includes the value of related goods sold by the service provider or included within the service offering. Only goods and services traded between entities or sold to end consumers are included.

The market value is defined as the revenues that enterprises gain from the sale of goods and/or services within the specified market and geography through sales, grants, or donations in terms of the currency (in USD unless otherwise specified).

The revenues for a specified geography are consumption values that are revenues generated by organizations in the specified geography within the market, irrespective of where they are produced. It does not include revenues from resales along the supply chain, either further along the supply chain or as part of other products.

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