Nuclear & Fusion Energy

Companies: 1,133
Overview

Nuclear & Fusion Energy is a key segment within the Energy & Utilities sector, comprising 1,133+ companies actively operating in this space.

This segment represents businesses focused on specific activities and services within Energy & Utilities. Companies in this segment share common characteristics, market positioning, and often face similar challenges and opportunities.

Browse the comprehensive directory of Nuclear & Fusion Energy companies to access detailed profiles, financial information, funding rounds, investor details, and other critical business intelligence for research, due diligence, and market analysis.

Top Companies in Nuclear & Fusion Energy

Discover leading companies in this segment, ranked by company performance and market presence.

NextEra Energy
nexteraenergy.com

Developer of energy solutions

Founded 1925
Location Juno Beach, Florida, United States
Revenue USD 26.53 B As on 31 Dec 2025
EBITDA USD 14.07 B As on 31 Dec 2025
Net Profit USD 6.83 B As on 31 Dec 2025
Employees 16,800 As on 31 Dec 2024
Orano
orano.group

Fuel and power producer in the nuclear energy sector

Founded 2001
Location United States
Total Funding USD 307.86 M As on 29 Mar 2024
Fortum
fortum.com

Clean energy solutions for generation, retail, and heating are provided.

Founded 1998
Location Espoo, Finland
Revenue USD 5.86 B As on 31 Dec 2025
EBITDA USD 1.42 B As on 31 Dec 2025
Net Profit USD 898.88 M As on 31 Dec 2025
Employees 4,470 As on 31 Dec 2024
TerraPower
terrapower.com

Advanced nuclear reactors are designed for low-carbon energy solutions.

Founded 2006
Location Bellevue, Washington, United States
Employees 299 As on 31 Dec 2022
Total Funding USD 1.46 B As on 18 Jun 2025

Compact tokamak fusion reactors are developed with superconducting magnets.

Founded 2018
Location Cambridge, Massachusetts, United States
Total Funding USD 3.93 B As on 30 Jul 2026
Newcleo
newcleo.com

Advanced nuclear reactors are designed, built, and operated by Newcleo.

Founded 2021
Location London, England, United Kingdom
Revenue USD 11.38 M As on 31 Dec 2023
Total Funding USD 769.93 M As on 04 Feb 2026
Helion
helionenergy.com

Deuterium-based magnetic-nuclear fusion reactors are developed for power generation.

Founded 2010
Location Redmond, Washington, United States
Total Funding USD 1.44 B As on 04 Jun 2026
Valuation USD 1.25 B As on 23 Sep 2020

Energy corporation

Founded 1903
Location Newark, New Jersey, United States
Revenue USD 12.28 B As on 31 Dec 2025
EBITDA USD 4.55 B As on 31 Dec 2025
Net Profit USD 2.11 B As on 31 Dec 2025
Employees 13,050 As on 31 Dec 2024
Southern Company
southerncompany.com

Energy utilities, natural gas, and communications technology are provided.

Founded 1912
Location United States
Revenue USD 29.55 B As on 31 Dec 2025
EBITDA USD 13.3 B As on 31 Dec 2025
Net Profit USD 4.34 B As on 31 Dec 2025
Employees 28,600 As on 31 Dec 2024

FRC nuclear fusion reactors are developed using advanced beam technology.

Founded 1998
Location Lake Forest, California, United States
Total Funding USD 1.32 B As on 02 Jun 2025
General Fusion
generalfusion.com

Magnetized nuclear fusion reactors are developed for energy production.

Founded 2002
Location Burnaby, British Columbia, Canada
Total Funding USD 512.93 M As on 27 Nov 2025
X Energy
x-energy.com

Small modular and high-temperature gas-cooled nuclear reactors are developed.

Founded 2010
Location Greenbelt, Maryland, United States
Employees 246 As on 31 Dec 2022
Total Funding USD 1.53 B As on 24 Nov 2025
NuScale Power
nuscalepower.com

Micro modular nuclear reactors are developed for scalable power generation.

Founded 2007
Location Portland, Oregon, United States
Revenue USD 31.48 M As on 31 Dec 2025
Employees 484 As on 31 Dec 2024
Total Funding USD 198.15 M As on 20 Jul 2021

Nuclear and hydroelectric power generation services are provided.

Founded 1999
Location Toronto, Ontario, Canada
Transmutex
transmutex.com

Developer of accelerator-powered technology for nuclear waste remediation and medical isotope production

Founded 2019
Location Geneve, Geneve, Switzerland
Total Funding USD 31.91 M As on 29 Jan 2024
Tokamak Energy
tokamakenergy.com

Clean fusion energy and superconducting magnet technologies are developed.

Founded 2009
Location Abingdon, Oxfordshire, United Kingdom
Total Funding USD 212 M As on 19 Nov 2024
Zap Energy
zapenergy.com

Nuclear energy projects are developed in Everett, United States.

Founded 2017
Location Everett, Washington, United States
Total Funding USD 327.71 M As on 15 Jul 2024
Centrus Energy
centrusenergy.com

Supplier of uranium fuel

Founded 1998
Location Bethesda, Maryland, United States
Revenue USD 442 M As on 31 Dec 2024
EBITDA USD 59.1 M As on 31 Dec 2024
Net Profit USD 73.2 M As on 31 Dec 2024
Employees 322 As on 31 Dec 2024
Exelon
exeloncorp.com

Electric and natural gas distribution services are provided.

Founded 2000
Location Chicago, Illinois, United States
Revenue USD 24.26 B As on 31 Dec 2025
EBITDA USD 8.79 B As on 31 Dec 2025
Net Profit USD 2.77 B As on 31 Dec 2025
Employees 20,010 As on 31 Dec 2024
Steady Energy
steadyenergy.com

Nuclear engineering solutions are provided for zero-emission heating plants.

Founded 2023
Location Espoo, Finland
Total Funding USD 73.8 M As on 01 Jul 2025

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