Micro Nuclear Reactors (MNRs) Industry
DataM Intelligence has published a new research report on “Micro Nuclear Reactors Market Size 2025”. The report explores comprehensive and insightful Information about various key factors like Regional Growth, Segmentation, CAGR, Business Revenue Status of Top Key Players and Drivers. The purpose of this report is to provide a telescopic view of the current market size by value and volume, opportunities, and development status.
United States: Key Developments
✅ October 2025: U.S. Department of Energy accelerated licensing pathways for microreactors, enabling faster demonstration projects for military and remote-grid applications.
✅ September 2025: NuScale and BWXT announced advanced micro-modular reactor designs aimed at off-grid industrial power and data center decarbonization.
✅ August 2025: Multiple U.S. universities began operating microreactor testbeds for real-time training and R&D under DOE-funded initiatives.
Japan: Key Developments
✅ October 2025: Japan’s Ministry of Economy, Trade and Industry (METI) launched a national roadmap focused on microreactor deployment for disaster-resilient backup power.
✅ September 2025: Toshiba and Hitachi completed feasibility studies for microreactors designed for remote islands and critical infrastructure.
✅ August 2025: Japan initiated regulatory cons
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Latest M&A
Strategic equity stakes in SMR/micro-nuclear players – utilities and national power groups are taking stakes in modular reactor firms (example: CEZ’s equity deal with Rolls-Royce SMR illustrates the trend of power companies acquiring material minority stakes to secure technology and pipeline access).
Consolidation & capability buys – larger industrial/defense contractors and industrial-gas suppliers are acquiring technology or capacity (or announcing partnerships) to vertically integrate manufacturing, licensing, and fuel/supply capabilities for small reactors. Market reporting shows this pattern even where headline M&A values are not always disclosed publicly
Key Players:
✅ NuScale Power – A pioneer in modular nuclear technology with its VOYGR micro-SMR design.
✅ Oklo, Inc. – U.S.-based startup developing compact fast reactors.
✅ Kairos Power – Developing molten salt-cooled micro SMRs using fluoride salt.
✅ Last Energy – Modular micro-reactors (PWR-20) designed for transportable power deployment.
✅ Westinghouse Electric Company – Building the “eVinci” microreactor, a transportable “nuclear battery” with heat-pipe technology.
✅ Holtec International – Active in SMRs / micro-reactors, pushing design and deployment.
✅ Rolls-Royce SMR – UK company focusing on modular, factory-fabricated micro /SMR solutions.
✅ TerraPower – Though focused on advanced SMR, it is a key innovator in small reactor tech.
✅ Newcleo – Developing lead-cooled, fast micro-reactor technology
Latest Investments
Private raises and facility investments: Venture and private equity funding into microreactor startups has accelerated in 2024-2025, with multiple rounds across the U.S. and Europe (market trackers show hundreds of millions raised collectively for SMR/micro players through 2025).
Major corporate / government funding: Governments, defence agencies and energy authorities have issued grants, contracts and purchase-order pipelines (DOE/other national programs and defense initiatives are underwriting design/demonstration costs and early manufacturing). Example: U.S. DOE and related Defense programs have funded demonstration and evaluation contracts.
Private sector offtake / offtake-style investments: Large energy users and hyperscalers (tech/data-centre companies) are striking long-term commercial commitments or power-purchase/energy-offtake style agreements with SMR/micro vendors to de-risk investments.
Growth Forecast Projection:
The Global Micro Nuclear Reactors Market is anticipated to rise at a considerable rate during the forecast period, between 2025 and 2032. In 2024, the market is growing at a steady rate, and with the rising adoption of strategies by key players, the market is expected to rise over the projected horizon.
Research Process:
Both primary and secondary data sources have been used in the global Micro Nuclear Reactors Market research report. During the research process, a wide range of industry-affecting factors are examined, including governmental regulations, market conditions, competitive levels, historical data, market situation, technological advancements, upcoming developments, in related businesses, as well as market volatility, prospects, potential barriers, and challenges.
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Key Segmentation:
By Product Type: (High-Temperature Reactors, Liquid Metal Reactor (LMR), Molten Salt Reactors)
By Applications: (Military, Industrial, Commercial, Residential, Others)
Regional Analysis for Market:
⇥ North America (U.S., Canada, Mexico)
⇥ Europe (U.K., Italy, Germany, Russia, France, Spain, The Netherlands and Rest of Europe)
⇥ Asia-Pacific (India, Japan, China, South Korea, Australia, Indonesia Rest of Asia Pacific)
⇥ South America (Colombia, Brazil, Argentina, Rest of South America)
⇥ Middle East & Africa (Saudi Arabia, U.A.E., South Africa, Rest of Middle East & Africa)
Benefits of the Report:
Chapter 1: Sets the stage by outlining the report’s coverage, summarizing key market segments by region, product type, and application. Presents a snapshot of market sizes, growth potential across segments, and anticipated industry evolution both short and long term.
Chapter 2: Highlights pivotal market insights and uncovers the most significant emerging trends driving change within the industry.
Chapter 3: Offers an in-depth look at the competitive landscape among Micro Nuclear Reactors producers, including revenue shares, strategic moves, and recent mergers and acquisitions.
Chapter 4: Presents comprehensive profiles of the market’s key players, delving into details such as revenue, profit margins, product portfolios, and company milestones.
Chapters 5 & 6: Analyze Micro Nuclear Reactors revenue at both regional and country levels, providing quantitative breakdowns of market sizes, growth opportunities, and development prospects worldwide.
Chapter 7: Focuses on different market segments by type, examining their individual sizes and potential, guiding readers toward high-impact, untapped market areas.
Chapter 8: Explores segmentation by application, evaluating industry growth potential in various downstream markets and pinpointing promising sectors for expansion.
Chapter 9: Provides a thorough review of the industry’s supply chain mapping out both upstream and downstream activities.
Chapter 10: Concludes with a summary of the report’s key findings and highlights the most critical takeaways for industry stakeholders.
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Latest Projects
✅ BWX Technologies – Wyoming microreactor evaluation & design work: Awarded multi-million dollar phases to scope and design a lead microreactor for state deployment and possible manufacturing, with deliverables covering regulatory engagement and conceptual design. (U.S. project example).
✅ Westinghouse eVinci microreactor development: Westinghouse continues development of its transportable eVinci microreactor platform aimed at decentralized power applications (campus, remote sites, defence).
✅ Commercial offtake pilots / tech partner pilots: Multiple microreactor builders are engaged in pilots or commercial development dialogues with utilities, defence, mining and data-centre customers to site first-of-a-kind units in the late 2020s. Reuters coverage notes rising interest from tech groups and utilities in microreactors for colocated power needs.
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Procurement & Supply-chain
✅ Key supply-chain nodes: reactor core/fuel fabricators, heat-sink and power-conversion subsystem suppliers, transportable modular containment manufacturers, instrumentation & control (I&C), and specialty manufacturers for high-integrity pressure vessels. National supply chains (steel, forgings, precision machining) are critical.
✅ Procurement trends: buyers increasingly favor turnkey or firm-fixed-price EPC + long-term service/maintenance contracts to reduce delivery risk; defence and remote-site customers seek packaged “site-ready” solutions (including fuel logistics and site licensing support).
✅ Quality, regulatory & domestic content constraints: procurement is shaped by nuclear licensing regimes, domestic content and security/defence requirements buyers often require qualified suppliers with nuclear vendor-approval status and traceable QA/QC history. This drives preference for incumbent heavy engineering contractors and national champions.
✅ Manufacturing scale ramp: to meet anticipated multi-unit deployments, the industry is moving from prototype builds to factory/manufacturing-line planning this requires early procurement commitments for forgings, heat exchangers, control systems and fuel fabrication capacity. Conferences and buyer networks (World Nuclear Supply Chain, industry associations) are actively coordinating suppliers to close gaps.
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