slug stringlengths 3 46 | name stringlengths 2 49 | legal_name stringclasses 16
values | aliases stringlengths 3 176 ⌀ | website stringlengths 15 35 ⌀ | description stringlengths 42 154 ⌀ | hq_city stringlengths 5 18 ⌀ | hq_state stringclasses 20
values | country_code stringclasses 4
values | founded_year float64 | status stringclasses 1
value | buckets stringclasses 17
values | roles stringclasses 29
values | technologies stringclasses 6
values | checked_on stringdate 2026-10-10 00:00:00 2026-10-26 00:00:00 | url stringlengths 43 86 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
3m-company | 3M | null | null | null | null | null | null | US | null | active | null | null | null | 2026-10-16 | https://nuclear-directory.org/companies/3m-company |
adp-cr3 | ADP-CR3 | null | null | null | NRC-licensed operator responsible for decommissioning Crystal River 3. | null | null | US | null | active | waste-decommissioning | waste_decommissioning | null | 2026-10-20 | https://nuclear-directory.org/companies/adp-cr3 |
advanced-conductor-technologies | Advanced Conductor Technologies | null | null | null | null | null | null | US | null | active | components | components | null | 2026-10-17 | https://nuclear-directory.org/companies/advanced-conductor-technologies |
advanced-reactor-concepts | Advanced Reactor Concepts | null | ARC Clean Technology | https://www.arc-cleantech.com/ | Develops the ARC-100, a sodium-cooled fast small modular reactor. | Washington | DC | US | null | active | reactor-developers | reactor_vendor | null | 2026-10-16 | https://nuclear-directory.org/companies/advanced-reactor-concepts |
alabama-power | Alabama Power | null | null | https://www.alabamapower.com | Electric utility in Alabama, part of Southern Company, that owns Plant Farley. | null | null | US | null | active | utilities | utility | null | 2026-10-12 | https://nuclear-directory.org/companies/alabama-power |
allegheny-electric-cooperative | Allegheny Electric Cooperative | Allegheny Electric Cooperative, Inc. | Allegheny Electric | https://prea.com | null | Harrisburg | PA | US | null | active | utilities | utility | fission | 2026-10-11 | https://nuclear-directory.org/companies/allegheny-electric-cooperative |
allied-power | Allied Power | null | null | https://alliedpwr.com | Company that provides maintenance, modification and project services to power plants, including nuclear plants. | Baton Rouge | LA | US | null | active | services | reactor_services | null | 2026-10-10 | https://nuclear-directory.org/companies/allied-power |
amazon | Amazon | Amazon.com, Inc. | AWS; Amazon Climate Pledge Fund; Amazon Web Services; Amazon.com, Inc. | https://www.aboutamazon.com | Company offering online shopping, cloud computing, streaming, devices, advertising and AI services. | null | null | US | null | active | power-buyers; investors | data_center_offtaker | smr | 2026-10-10 | https://nuclear-directory.org/companies/amazon |
ameren-ue | Ameren UE | null | Union Electric Co - (MO) | null | null | null | null | US | null | active | utilities | operator | null | 2026-10-12 | https://nuclear-directory.org/companies/ameren-ue |
ampeers | Ampeers | null | null | https://www.ampeers.com/ | Makes superconducting wire for fusion magnets and power systems. | null | null | US | null | active | components | components | null | 2026-10-16 | https://nuclear-directory.org/companies/ampeers |
analysis-and-measurement-services | Analysis and Measurement Services | null | AMS Corporation | https://www.ams-corp.com/ | Nuclear engineering consultancy that tests instrumentation and control systems at nuclear facilities. | null | null | US | null | active | services | reactor_services | null | 2026-10-16 | https://nuclear-directory.org/companies/analysis-and-measurement-services |
aqwest | Aqwest | null | null | https://www.aqwest.com/ | Develops photonics, thermal management and energy-efficiency products. | null | null | US | null | active | components | components | null | 2026-10-16 | https://nuclear-directory.org/companies/aqwest |
ares-security | Ares Security | null | null | null | null | null | null | US | null | active | null | null | null | 2026-10-24 | https://nuclear-directory.org/companies/ares-security |
argonne-national-laboratory | Argonne National Laboratory | null | ANL | null | null | null | null | US | null | active | fuel; government-research | isotopes; national_lab | null | 2026-10-21 | https://nuclear-directory.org/companies/argonne-national-laboratory |
arizona-public-service-co | Arizona Public Service Co. | null | null | null | null | null | null | US | null | active | utilities | operator | null | 2026-10-12 | https://nuclear-directory.org/companies/arizona-public-service-co |
asp-isotopes | ASP Isotopes | null | ASPI; QLE; Quantum Leap Energy | https://www.aspisotopes.com | Isotope enrichment company developing nuclear fuel enrichment through Quantum Leap Energy. | null | null | null | null | active | fuel | enrichment; isotopes | null | 2026-10-19 | https://nuclear-directory.org/companies/asp-isotopes |
babcock-wilcox | Babcock & Wilcox | null | null | null | null | null | null | US | null | active | null | null | null | 2026-10-24 | https://nuclear-directory.org/companies/babcock-wilcox |
bernhard-capital-partners | Bernhard Capital Partners | null | null | https://www.bernhardcapital.com | Private equity firm, founded in 2013, that invests in services and infrastructure businesses. | Baton Rouge | LA | null | null | active | investors | venture_capital | null | 2026-10-10 | https://nuclear-directory.org/companies/bernhard-capital-partners |
blue-energy | Blue Energy | null | null | https://www.blueenergy.co | Company that designs nuclear plants to be prefabricated in factories and assembled on site. | null | null | null | null | active | reactor-developers | project_developer | null | 2026-10-16 | https://nuclear-directory.org/companies/blue-energy |
blue-wave-capital-and-consulting | Blue Wave Capital and Consulting | null | Blue Wave AI Labs | https://bluewaveailabs.com/ | Makes AI software that helps nuclear plants cut fuel and maintenance costs. | null | null | US | null | active | services | reactor_services | null | 2026-10-16 | https://nuclear-directory.org/companies/blue-wave-capital-and-consulting |
breakthrough-energy-ventures | Breakthrough Energy Ventures | null | BEV | https://www.breakthroughenergy.org | Investment arm of Breakthrough Energy that backs clean energy technology companies. | null | null | US | null | active | investors | venture_capital | fusion | 2026-10-10 | https://nuclear-directory.org/companies/breakthrough-energy-ventures |
bridge12 | Bridge12 | null | BRIDGE 12 TECHNOLOGIES, INC. | https://www.bridge12.com/ | Develops high-power microwave, millimeter-wave and terahertz systems for fusion and spectroscopy. | null | null | US | null | active | components | components | null | 2026-10-16 | https://nuclear-directory.org/companies/bridge12 |
brookhaven-national-laboratory | Brookhaven National Laboratory | null | BNL | https://www.bnl.gov | National laboratory working on scientific discovery and technological innovation. | null | null | US | null | active | fuel; government-research | isotopes; national_lab | null | 2026-10-21 | https://nuclear-directory.org/companies/brookhaven-national-laboratory |
brookhaven-technology-group | Brookhaven Technology Group | null | null | https://brookhaventech.com/ | Develops superconducting cables, including for compact fusion reactors. | null | null | US | null | active | components | components | null | 2026-10-16 | https://nuclear-directory.org/companies/brookhaven-technology-group |
bwxt | BWXT | null | BWXT NOG Technologies; BWXT NUCLEAR ENERGY, INC.; BWXT NUCLEAR OPERATIONS GROUP, INC. | https://www.bwxt.com/ | Makes naval nuclear reactors and components, as it has since the 1950s, and nuclear fuel. | null | null | US | null | active | fuel; components | components; fabrication; fuel | null | 2026-10-16 | https://nuclear-directory.org/companies/bwxt |
centrus-energy | Centrus Energy | Centrus Energy Corp. | American Centrifuge Operating, LLC; Centrus | https://www.centrusenergy.com | Company that supplies enriched uranium fuel for nuclear power plants and is expanding HALEU production. | Bethesda | MD | US | null | active | fuel | enrichment; fuel | fission | 2026-10-10 | https://nuclear-directory.org/companies/centrus-energy |
ceramic-tubular-products | Ceramic Tubular Products | null | CTP | https://ctp-usa.com/ | Lynchburg, Virginia manufacturer of silicon carbide nuclear fuel rod cladding. | null | null | US | null | active | components | components | null | 2026-10-16 | https://nuclear-directory.org/companies/ceramic-tubular-products |
commonwealth-fusion-systems | Commonwealth Fusion Systems | null | CFS | https://cfs.energy | Fusion company building the SPARC tokamak and planning the ARC fusion power plant. | Devens | MA | US | null | active | reactor-developers | reactor_vendor | fusion | 2026-10-10 | https://nuclear-directory.org/companies/commonwealth-fusion-systems |
constellation-energy | Constellation | Constellation Energy Corporation | Constellation Energy Corporation; Constellation Energy Generation, LLC; Constellation Nuclear | https://www.constellationenergy.com | Power producer with nuclear, gas, hydro, wind and solar plants; the largest nuclear energy company in the U.S. | Baltimore | MD | US | null | active | utilities | operator; utility | fission | 2026-10-10 | https://nuclear-directory.org/companies/constellation-energy |
container-technologies-industries | Container Technologies Industries | null | CTI Fab | https://containertechnologies.com/ | Metal fabricator making nuclear-quality containers for DOE and the nuclear industry. | null | null | US | null | active | components | components | null | 2026-10-16 | https://nuclear-directory.org/companies/container-technologies-industries |
converdyn | ConverDyn | null | ConverDyn, GP | https://www.converdyn.com | Company that supplies uranium hexafluoride (UF6) conversion services to nuclear power plants worldwide. | Greenwood Village | CO | US | null | active | fuel | conversion; fuel | fission | 2026-10-10 | https://nuclear-directory.org/companies/converdyn |
crow-butte-resources-inc | Crow Butte Resources, Inc. | null | null | null | null | null | null | US | null | active | null | null | null | 2026-10-20 | https://nuclear-directory.org/companies/crow-butte-resources-inc |
crusoe | Crusoe | null | null | https://www.crusoe.ai | AI infrastructure company that builds AI data centers and runs an AI cloud. | null | null | null | null | active | power-buyers | data_center_offtaker | null | 2026-10-16 | https://nuclear-directory.org/companies/crusoe |
curtiss-wright | Curtiss-Wright | Curtiss-Wright Corporation | null | https://www.curtisswright.com | Maker of engineered products for aerospace and defense and for commercial nuclear power, including reactor coolant pumps and control rod drive mechanisms. | Davidson | NC | US | null | active | components | components | fission | 2026-10-20 | https://nuclear-directory.org/companies/curtiss-wright |
dalton-utilities | Dalton Utilities | null | null | https://www.dutil.com | Public utility, operating since 1889, providing water, electric, natural gas and wastewater services to the City of Dalton and nearby counties | null | null | US | null | active | utilities | utility | fission | 2026-10-11 | https://nuclear-directory.org/companies/dalton-utilities |
dominion-energy | Dominion Energy | null | Dominion Energy Nuclear Conn Inc; Dominion Energy South Carolina, Inc; Dominion Energy Virginia; Dominion Generation; Dominion Nuclear Connecticut; Virginia Electric & Power Co | https://www.dominionenergy.com | Utility that provides regulated electricity service in Virginia, North Carolina and South Carolina. | Richmond | VA | US | null | active | utilities | operator; utility | fission | 2026-10-10 | https://nuclear-directory.org/companies/dominion-energy |
dte-electric-company | DTE Electric Company | null | null | null | null | null | null | US | null | active | utilities | operator | null | 2026-10-12 | https://nuclear-directory.org/companies/dte-electric-company |
duke-energy | Duke Energy | null | Duke Energy Carolinas, LLC; Duke Energy Progress - (NC); Duke Energy Progress, LLC | null | null | null | null | US | null | active | utilities | operator | null | 2026-10-12 | https://nuclear-directory.org/companies/duke-energy |
duke-energy-florida | Duke Energy Florida | null | null | null | null | null | null | US | null | active | null | null | null | 2026-10-20 | https://nuclear-directory.org/companies/duke-energy-florida |
electric-power-research-institute | Electric Power Research Institute | null | EPRI | https://www.epri.com/ | Non-profit energy research organization with a program for modernizing nuclear power plants. | null | null | US | null | active | government-research | research_organization | null | 2026-10-16 | https://nuclear-directory.org/companies/electric-power-research-institute |
elementl-power | Elementl Power | null | Elementl | https://www.elementlpower.com | Nuclear project developer that develops, finances and delivers new nuclear power projects, from siting and licensing through commercial operation. | null | null | null | null | active | reactor-developers | project_developer | null | 2026-10-16 | https://nuclear-directory.org/companies/elementl-power |
enercon | ENERCON | null | Enercon Services, Inc. | https://www.enercon.com | Engineering company that helps utilities, nuclear operators and developers with complex engineering challenges. | Kennesaw | GA | US | null | active | services | regulatory_consultant | smr | 2026-10-10 | https://nuclear-directory.org/companies/enercon |
energy-fuels | Energy Fuels | Energy Fuels Inc. | null | https://www.energyfuels.com | Company that produces uranium for U.S. nuclear utilities, plus rare earth oxides and vanadium. | Denver | CO | US | null | active | fuel | fuel; mining | null | 2026-10-10 | https://nuclear-directory.org/companies/energy-fuels |
energy-harbor-nuclear-corp | Energy Harbor Nuclear Corp. | null | ENERGY HARBOR CORP.; Energy Harbor Nuclear Generation LLC | null | null | null | null | US | null | active | utilities | operator | null | 2026-10-12 | https://nuclear-directory.org/companies/energy-harbor-nuclear-corp |
energy-northwest | Energy Northwest | null | Energy Northwest- Columbia | https://www.energy-northwest.com | Public power agency in Washington that generates electricity from nuclear, wind, hydro and solar projects. | Richland | WA | US | null | active | utilities | operator; utility | smr | 2026-10-10 | https://nuclear-directory.org/companies/energy-northwest |
eni | Eni | null | null | null | null | null | null | null | null | active | power-buyers | null | null | 2026-10-24 | https://nuclear-directory.org/companies/eni |
ensco | ENSCO | null | null | https://www.ensco.com/ | Engineering company in aerospace, national security, rail and cybersecurity; contracted by DOE to build and test a spent-fuel railcar prototype. | null | null | US | null | active | components | components | null | 2026-10-16 | https://nuclear-directory.org/companies/ensco |
entergy-nuclear-operations-inc | Entergy | Entergy Nuclear Operations, Inc. | Entergy Arkansas LLC; Entergy Louisiana LLC; Entergy Nuclear Operations, Inc.; System Energy Resources, Inc | null | null | null | null | US | null | active | utilities | operator | null | 2026-10-12 | https://nuclear-directory.org/companies/entergy-nuclear-operations-inc |
entra1-energy | ENTRA1 Energy | null | ENTRA1 | https://entra1.com | Energy production company deploying, financing and operating baseload power infrastructure across nuclear, natural gas and other sources. | Houston | TX | US | null | active | reactor-developers | project_developer | smr | 2026-10-16 | https://nuclear-directory.org/companies/entra1-energy |
equinix | Equinix | null | null | https://www.equinix.com | Digital infrastructure company that runs a global network of data centers. | null | null | null | null | active | power-buyers | data_center_offtaker | fission; smr | 2026-10-16 | https://nuclear-directory.org/companies/equinix |
faraday-technology | Faraday Technology | null | null | null | null | null | null | US | null | active | null | null | null | 2026-10-24 | https://nuclear-directory.org/companies/faraday-technology |
firstenergy-nuclear-operating-co | FirstEnergy Nuclear Operating Co. | null | null | null | null | null | null | US | null | active | utilities | operator | null | 2026-10-12 | https://nuclear-directory.org/companies/firstenergy-nuclear-operating-co |
florida-power-light-co | Florida Power & Light Co. | Florida Power & Light Company | FPL | https://www.fpl.com | Electric utility serving about 12 million people across Florida, with a fleet that includes nuclear, natural gas, solar and battery storage. | null | null | US | null | active | utilities | operator | null | 2026-10-12 | https://nuclear-directory.org/companies/florida-power-light-co |
fpolisolutions | Fpolisolutions | null | null | null | null | null | null | US | null | active | null | null | null | 2026-10-24 | https://nuclear-directory.org/companies/fpolisolutions |
framatome | Framatome | null | null | https://www.framatome.com | Company that designs and makes nuclear steam supply systems and supplies equipment, services and fuel to nuclear plants. | Courbevoie | null | FR | null | active | fuel; services | fabrication; reactor_services | fission | 2026-10-10 | https://nuclear-directory.org/companies/framatome |
general-atomics | General Atomics | null | null | null | null | null | null | US | null | active | reactor-developers | reactor_vendor | null | 2026-10-17 | https://nuclear-directory.org/companies/general-atomics |
general-matter | General Matter | null | null | https://www.generalmatter.com | Company building uranium enrichment in the United States, including HALEU for advanced reactors. | null | null | US | null | active | fuel | enrichment; fuel | fission | 2026-10-10 | https://nuclear-directory.org/companies/general-matter |
georgia-power | Georgia Power | null | null | https://www.georgiapower.com | Electric utility serving about 2.8 million customers in Georgia; Plant Vogtle units 3 and 4 are its newest nuclear units. | null | null | US | null | active | utilities | utility | fission | 2026-10-10 | https://nuclear-directory.org/companies/georgia-power |
ge-vernova | GE Vernova | null | GE VERNOVA OPERATIONS LLC; General Electric | https://www.gevernova.com | Energy equipment company making wind and gas turbines; its nuclear business designs reactors with Hitachi. | Cambridge | MA | US | null | active | reactor-developers | reactor_vendor | fission; smr | 2026-10-10 | https://nuclear-directory.org/companies/ge-vernova |
ge-vernova-hitachi-nuclear-energy | GE Vernova Hitachi Nuclear Energy | null | GE Hitachi Nuclear Energy; GEH; GVH | https://www.gevernova.com/nuclear | Reactor developer behind the BWRX-300 small modular reactor that also provides nuclear fuel and services. | null | null | US | null | active | reactor-developers; services | reactor_services; reactor_vendor | fission; smr | 2026-10-10 | https://nuclear-directory.org/companies/ge-vernova-hitachi-nuclear-energy |
global-laser-enrichment | Global Laser Enrichment | null | null | null | null | null | null | US | null | active | fuel | enrichment | null | 2026-10-17 | https://nuclear-directory.org/companies/global-laser-enrichment |
global-nuclear-fuel-americas | Global Nuclear Fuel–Americas | null | GNF; GNF-A; Global Nuclear Fuel | https://www.gevernova.com/nuclear | GE Vernova-led fuel company in Wilmington, North Carolina that makes boiling water reactor fuel. | Wilmington | NC | US | null | active | fuel | fabrication; fuel | fission | 2026-10-10 | https://nuclear-directory.org/companies/global-nuclear-fuel-americas |
good-energy-collective-incorporated | Good Energy Collective | null | null | null | null | null | null | US | null | active | government-research | research_organization | null | 2026-10-16 | https://nuclear-directory.org/companies/good-energy-collective-incorporated |
google | Google | null | null | https://www.google.com | Power buyer that agreed to buy power from multiple Kairos Power small modular reactors. | null | null | US | null | active | power-buyers; investors | data_center_offtaker | fusion; smr | 2026-10-10 | https://nuclear-directory.org/companies/google |
h3d | H3D | null | null | null | null | null | null | US | null | active | null | null | null | 2026-10-24 | https://nuclear-directory.org/companies/h3d |
helion-energy | Helion Energy | null | Helion | https://www.helionenergy.com | Fusion company building a fusion power plant to supply electricity to the grid. | Everett | WA | US | null | active | reactor-developers | reactor_vendor | fusion | 2026-10-10 | https://nuclear-directory.org/companies/helion-energy |
hitachi | Hitachi | null | Kabushiki Kaisha Hitachi Seisakusho | https://www.hitachi.com | Japanese industrial company with a nuclear energy business that includes Fukushima recovery work and fusion research. | Tokyo | null | JP | null | active | null | null | smr | 2026-10-10 | https://nuclear-directory.org/companies/hitachi |
holtec-decommissioning-international | Holtec Decommissioning International | Holtec Decommissioning International, LLC | HDI; Holtec Decommissioning International (HDI) | https://hdi-decom.com | Decommissioning company, a wholly owned subsidiary of Holtec International, for shut-down nuclear power plants. | null | null | null | null | active | waste-decommissioning | waste_decommissioning | null | 2026-10-20 | https://nuclear-directory.org/companies/holtec-decommissioning-international |
holtec-international | Holtec International | null | Holtec; Holtec Government Services; Holtec Palisades, LLC; SMR, LLC | https://holtecinternational.com | Company that makes spent fuel storage systems, develops small modular reactors and decommissions nuclear plants. | Camden | NJ | US | null | active | reactor-developers; utilities | operator; project_developer; reactor_vendor | smr | 2026-10-10 | https://nuclear-directory.org/companies/holtec-international |
idaho-national-laboratory | Idaho National Laboratory | null | INL | https://inl.gov | DOE national laboratory in southeastern Idaho focused on nuclear energy research and development. | null | ID | US | null | active | fuel; government-research | isotopes; national_lab | fission | 2026-10-10 | https://nuclear-directory.org/companies/idaho-national-laboratory |
illinoisrocstar | Illinoisrocstar | null | null | null | null | null | null | US | null | active | null | null | null | 2026-10-24 | https://nuclear-directory.org/companies/illinoisrocstar |
indiana-michigan-power-co | Indiana/Michigan Power Co. | null | null | null | null | null | null | US | null | active | utilities | operator | null | 2026-10-12 | https://nuclear-directory.org/companies/indiana-michigan-power-co |
international-isotopes-inc | International Isotopes Inc. | null | null | null | null | null | null | US | null | active | null | null | null | 2026-10-26 | https://nuclear-directory.org/companies/international-isotopes-inc |
kairos-power | Kairos Power | null | null | https://kairospower.com | Reactor developer based in Alameda, with a manufacturing hub in Albuquerque and Hermes reactors under construction in Oak Ridge. | Alameda | CA | US | null | active | reactor-developers; fuel | coolant; molten_salt; reactor_vendor | fission; smr | 2026-10-10 | https://nuclear-directory.org/companies/kairos-power |
kewaunee-solutions-inc | Kewaunee Solutions, Inc. | null | null | null | NRC approved the indirect transfer of the Kewaunee Power Station license to this company. | null | null | US | null | active | null | null | null | 2026-10-20 | https://nuclear-directory.org/companies/kewaunee-solutions-inc |
khosla-ventures | Khosla Ventures | null | null | https://www.khoslaventures.com | Venture capital firm that invests early, from pre-seed and seed to Series A. | Menlo Park | CA | US | null | active | investors | venture_capital | null | 2026-10-10 | https://nuclear-directory.org/companies/khosla-ventures |
last-energy | Last Energy | null | null | https://www.lastenergy.com | Developer of small modular nuclear power plants that it builds, owns and runs for customers. | null | null | null | null | active | reactor-developers | reactor_vendor | smr | 2026-10-16 | https://nuclear-directory.org/companies/last-energy |
leidos-inc | Leidos | null | null | null | null | null | null | US | null | active | null | null | null | 2026-10-16 | https://nuclear-directory.org/companies/leidos-inc |
lightspeed-venture-partners | Lightspeed Venture Partners | null | Lightspeed | https://lsvp.com | Venture capital firm that invests from seed stage through later rounds. | null | null | US | null | active | investors | venture_capital | null | 2026-10-10 | https://nuclear-directory.org/companies/lightspeed-venture-partners |
long-mott-energy | Long Mott Energy | Long Mott Energy, LLC | LME | null | null | null | null | US | null | active | reactor-developers | project_developer | smr | 2026-10-11 | https://nuclear-directory.org/companies/long-mott-energy |
los-alamos-national-laboratory | Los Alamos National Laboratory | null | LANL | null | null | null | null | US | null | active | fuel; government-research | isotopes; national_lab | null | 2026-10-21 | https://nuclear-directory.org/companies/los-alamos-national-laboratory |
lowercarbon-capital | Lowercarbon Capital | null | null | https://lowercarboncapital.com | Venture capital firm funding companies that cut or remove greenhouse gas emissions. | null | null | US | null | active | investors | venture_capital | fusion | 2026-10-10 | https://nuclear-directory.org/companies/lowercarbon-capital |
materials-modifications | Materials Modifications | null | null | null | null | null | null | US | null | active | null | null | null | 2026-10-24 | https://nuclear-directory.org/companies/materials-modifications |
meag-power | MEAG Power | null | null | https://www.meagpower.org | Wholesale electric power provider to 49 public power communities in Georgia | null | null | US | null | active | utilities | utility | fission | 2026-10-11 | https://nuclear-directory.org/companies/meag-power |
meta-platforms | Meta | Meta Platforms, Inc. | Meta Platforms, Inc. | https://about.meta.com | Technology company behind Facebook, Messenger, Instagram and WhatsApp. | null | null | US | null | active | power-buyers; investors | data_center_offtaker | fission | 2026-10-10 | https://nuclear-directory.org/companies/meta-platforms |
michigan-state-university | Michigan State University | null | null | null | null | null | null | US | null | active | government-research | university | null | 2026-10-20 | https://nuclear-directory.org/companies/michigan-state-university |
microsoft | Microsoft | Microsoft Corporation | null | https://www.microsoft.com | Company that makes AI-powered platforms and tools. | Redmond | WA | US | null | active | power-buyers | data_center_offtaker | fission; fusion | 2026-10-10 | https://nuclear-directory.org/companies/microsoft |
nac-international | NAC International | null | null | https://www.nacintl.com/ | Designs, licenses and supplies casks for storing and transporting spent nuclear fuel. | null | null | US | null | active | waste-decommissioning | waste_decommissioning | null | 2026-10-16 | https://nuclear-directory.org/companies/nac-international |
nasa | NASA | null | National Aeronautics and Space Administration | https://www.nasa.gov | Space agency building SR-1 Freedom, its first fission-powered spacecraft. | null | null | null | null | active | government-research | government_agency | fission | 2026-10-26 | https://nuclear-directory.org/companies/nasa |
nebraska-public-power-district | Nebraska Public Power District | null | null | null | null | null | null | US | null | active | utilities | operator | null | 2026-10-12 | https://nuclear-directory.org/companies/nebraska-public-power-district |
new-era-energy-digital | New Era Energy & Digital | null | NUAI; New Era | https://newerainfra.ai | Developer of modular data centers backed by several energy sources. | null | null | US | null | active | power-buyers | data_center_offtaker | smr | 2026-10-16 | https://nuclear-directory.org/companies/new-era-energy-digital |
nextera-energy | NextEra Energy | null | NextEra Energy Duane Arnold, LLC; NextEra Energy Point Beach, LLC; NextEra Energy Seabrook, LLC | https://www.nexteraenergy.com | Energy company building generation of all kinds, including nuclear. | null | null | US | null | active | utilities | operator | null | 2026-10-12 | https://nuclear-directory.org/companies/nextera-energy |
northern-states-power-company-minnesota | Northern States Power Company – Minnesota | null | Northern States Power; Northern States Power Co - Minnesota | null | null | null | null | US | null | active | utilities | operator | null | 2026-10-12 | https://nuclear-directory.org/companies/northern-states-power-company-minnesota |
northstar-group-services | NorthStar Group Services | null | NorthStar; NorthStar Group Services, Inc. (NorthStar) | null | Decommissioning company to which NRC approved the transfer of the Vermont Yankee license in October 2018. | null | null | null | null | active | waste-decommissioning | waste_decommissioning | null | 2026-10-21 | https://nuclear-directory.org/companies/northstar-group-services |
northstar-vallecitos-llc-nsv | NorthStar Vallecitos, LLC (NSV) | null | null | null | Licensee of the Vallecitos Experimental Superheat Reactor (EVESR) since the license was transferred to it in March 2025. | null | null | US | null | active | waste-decommissioning | waste_decommissioning | null | 2026-10-20 | https://nuclear-directory.org/companies/northstar-vallecitos-llc-nsv |
nuclear-capital-partners | Nuclear Capital Partners | null | NCP | https://www.nuclearcp.com | Investment firm focused on nuclear energy, from advanced reactors and fuel to supply chain. | null | null | null | null | active | investors | venture_capital | null | 2026-10-16 | https://nuclear-directory.org/companies/nuclear-capital-partners |
nuclear-fuel-services | Nuclear Fuel Services | null | NFS | null | BWXT subsidiary that makes fuel material for U.S. Navy submarine and aircraft carrier reactors. | null | null | US | null | active | fuel | fuel | null | 2026-10-16 | https://nuclear-directory.org/companies/nuclear-fuel-services |
nufuels-inc | NuFuels, Inc. | null | null | null | null | null | null | US | null | active | null | null | null | 2026-10-20 | https://nuclear-directory.org/companies/nufuels-inc |
nuscale-power | NuScale Power | null | NuScale | https://www.nuscalepower.com | Small modular reactor company whose NuScale Power Module was the first SMR design approved by the NRC. | Portland | OR | US | null | active | reactor-developers | reactor_vendor | smr | 2026-10-16 | https://nuclear-directory.org/companies/nuscale-power |
nusenics | Nusenics | null | null | https://nusenics.com/ | Develops fiber-optic sensors for harsh environments, including fusion plasma diagnostics. | null | null | US | null | active | components | components | null | 2026-10-16 | https://nuclear-directory.org/companies/nusenics |
End of preview. Expand in Data Studio
Nuclear Directory: US nuclear supply chain dataset
US nuclear companies, facilities and their published relationships, with references to public sources. This is a mirror of version 2026.11, released October 27, 2026. Coverage is incomplete; absence from the dataset does not establish that a company, facility or relationship does not exist.
Files and joins
Each table is available in CSV and JSON. The five configurations keep their schemas separate. The train split name is a loading convention, not a claim that the tables are a labelled machine-learning benchmark.
| Table | Rows in this release | Contents |
|---|---|---|
| companies | 157 | Companies grouped by brand |
| facilities | 211 | Sites and reactor units, including power, fuel, research and other nuclear facilities |
| relationships | 411 | Company-to-company links and company roles at facilities |
| sources | 420 | Public documents referenced by the published facts |
| evidence | 1,582 | References connecting facts to sources |
For joins, facilities.site_slug points from a unit to its site. Relationships use from_slug, to_slug and to_table. Evidence uses fact_table/fact_key and source_id; fact_part distinguishes supported portions of a fact. Read DATA-DICTIONARY.md for the exact fields and meaning. CSV list values use semicolon-separated text; JSON retains arrays. Counts describe this dated release, not today's website.
Sources and limitations
The upstream publication is Nuclear Directory. Public source URLs and evidence references are included; quoted passages from source publishers are not exported. A linked document is not a guarantee of current status or correctness. Read dates, qualifications and original documents before using a claim. This reference does not provide engineering, licensing or investment advice.
Original release files and history: v2026.11 on GitHub. Read the original release README for collection and review methods. The accompanying LICENSE, CITATION.cff, DATA-DICTIONARY.md and manifest.json are included in this repository.
Licence and citation
The dataset is licensed under Creative Commons Attribution 4.0 International. Attribute Tosin Oladokun, Nuclear Directory. This licence covers the dataset, not the linked publishers' documents or the website's code.
All-versions DOI: https://doi.org/10.5281/zenodo.23703377
Version 2026.11 DOI: https://doi.org/10.5281/zenodo.23703378
When citing, state the version used and download date. Use the supplied CITATION.cff for bibliographic metadata. This mirror does not create a new DOI or change the original publication date.
- Downloads last month
- 92