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Proxima Fusion, Europe’s leading stellarator fusion company, and Kyoto Fusioneering, a leading fusion technology provider headquartered in Japan, have today signed a Memorandum of Understanding (MoU) to expand their cooperation on critical technologies needed to build and operate commercial fusion power plants, strengthening the industrial supply chain behind Germany’s ambition to become a global leader in fusion energy. Under the MoU, both companies will expand collaboratio

Boom Supersonic, America’s most vertically integrated aviation and energy company, led by Blake Scholl and the team, has unveiled its first complete supersonic turbine core, unveiled a 2GW turbine superfactory, and announced it is developing the world’s most advanced all-digital foundry, capable of casting the world’s most advanced single-crystal turbine blades and vanes. The Superfactory will create up to 500 high-paying jobs. The Superfactory is operational now and already

Rabot Energy, a market leader in dynamic electricity tariffs, led by Jan Rabe and the team, has raised a €50 million Series B funding round. The new lead investor is Endeit, a growth capital investor specializing in European tech scale-ups, together with the DeepTech & Climate Fund (DTCF). Existing investors included HV Capital, High-Tech Gründerfonds (HTGF), Bosch Ventures, CNI, Acurio Ventures, and vent.io. The funding will support the company’s next growth phase, targeting

1KOMMA5º, the Hamburg-based CleanTech unicorn, led by Philipp Schröder, and the team, pledges to invest over 100 million euros in its energy intelligence Heartbeat AI in 2027. Around 70 million euros come from a new financing round at a pre-money valuation of 1.35 billion US dollars (approx. 1.2 billion euros), up 35 percent from its July 2025 round. Around 35 million euros come from 1KOMMA5°'s own operating cash flow. The funds go into AI development, software capabilities,

Bluecore Energy, a maritime nuclear energy company developing compact, water-cooled nuclear power systems, led by Kofi Asante, has announced significant progress across several critical elements of its first system, including the purchase of low-enriched uranium (LEU) from WMC, continued pre-application engagement with the U.S. Nuclear Regulatory Commission and U.S. Coast Guard, and advancement of its maritime classification pathway with the American Bureau of Shipping (ABS).

Epyr, the French energy tech company electrifying industrial heat with thermal energy storage, led by Léa Dardenne and Bastien Oggeri, has raised an oversubscribed €15 million Series A round led by SlateVC. Existing investors AENU and Daphni are doubling down, alongside WEPA Ventures, OVNI Capital and Aurum Impact. Epyr’s Series A reflects rising demand for industrial electrification, with fresh capital set to accelerate project delivery, starting with the 35 MWh unit at Pape

Reverion, which builds reversible fuel cell power plants for decentralized energy supply, led by Stephan Herrmann, Felix Fischer, Jeremias Weinrich, Maximilian Hauck, and Luis Poblotzki, has closed a Series B funding round of $175 million to scale production of its dispatchable, carbon-negative power plants. The round is led by Kembara, Mundi Ventures’ European scale-up fund that backs breakthrough deeptech and climate technologies. Allianz, KfW Capital, Aurum Impact and Carb

Ray, a power bank-sharing company, led by Roman Averianov and Igor Kosolap, has announced its launch in New York City, the launchpad for its expansion into the US market. The company is piloting 120 charging stations across Manhattan. Users rent a portable power bank by tapping a bank card, Apple Pay, or Google Pay at the station and return it to any other station in the network. Founded in 2025 by Igor Kosolap and Roman Averianov, Ray operates battery-charging stations acros

Mazama Energy, driving the global energy transition by delivering Next-Generation geothermal energy from SuperHot Rocks, led by Sriram Vasantharajan, has raised $135 million in new capital to accelerate superhot rock geothermal commercial development, including an oversubscribed Series B led by Centaurus Capital, founded by John Arnold, and Doerr Capital. ConocoPhillips and Shell Ventures joined the round, with repeat investment from Khosla Ventures and Gates Frontier. Additi

Proxima Fusion, building stellarators to power the future, led by Francesco Sciortino and the team, and the State of Lower Saxony signed a Memorandum of Understanding (MoU) to lay the foundations for large-scale industrial production of high-temperature superconducting (HTS) tape in Lower Saxony. The new production site will create skilled jobs and strengthen European supply chains. Around €140 million is planned for the first two project phases through the end of 2029. HTS T

Rebaba, the Swedish energy technology, led by Paula Runsten and Felix Kruse, has raised $4.6 million (SEK 44.1 million) through an oversubscribed seed round led by Sistafund, alongside EIT Urban Mobility, with participation from existing shareholders and new European investors. The financing will support Rebaba’s mission to deliver circular battery energy storage systems that address rising demand for stable, cost-effective energy while reducing climate impact. Rebaba combine

BLUECORE ENERGY, a maritime nuclear energy company developing compact, water-cooled nuclear power systems, led by Kofi Asante and the team, has announced the close of a $50 million seed financing to accelerate development, testing, and deployment of its floating nuclear energy systems. The financing represents a significant expansion of Bluecore Energy’s initial $10 million pre-seed round announced when the company emerged from stealth in July. The round, led by Silverton Par

Octave.energy, providing cutting-edge energy management and storage systems, led by Maxime Snick, Nicolas Quintin, and the team, has raised €10 million in Series A funding to accelerate its expansion across Europe and further develop its Battery Energy Storage System (BESS) and Energy Management System (EMS) solutions. The round combines equity and flexible debt financing and was led by SPDG Growth, an investor in Octave.energy since its seed round, with participation from im

Pacific Fusion, powering a prosperous planet, led by Eric Lander, Carrie von Muench, Keith Lechien, and Will Regan, has broke ground on a $1 billion Research & Manufacturing Campus in Albuquerque, New Mexico, where the company will build a fusion facility designed to achieve two first-ever milestones: net facility gain, an essential breakthrough on the path to commercial fusion power, and high-yield fusion, a critical capability for U.S. national security. The campus at Mesa

Certain Energy, the British long-duration energy storage company, led by Tim Von Werne and the team, has announced it has received £10m Series A funding for its pioneering manganese flow battery technology. The investment will be used to commercialise Certain Energy’s technology and prepare it for deployment to stabilise grids and provide power during periods of low renewables production. The funding round, led by the British Business Bank with participation from Centrica plc

Form Energy, an American technology company developing and commercializing a new class of cost-effective, multi-day energy storage systems led by Mateo Jaramillo and the team, has announced a $750 million Series G financing round led by T. Rowe Price, which also led the company’s prior Series F round. This round brings Form Energy’s total equity raised to date to over $2 billion. New investors joining the Series G include Sequoia Capital, Janus Henderson, Franklin Templeton,

Mariana Minerals, a software-first, vertically integrated minerals company focused on supplying the minerals critical to modern energy, AI, and defense technologies, led by Turner Caldwell and the team, has announced its $310 million Series B financing, led by Khosla Ventures, with continued support from Andreessen Horowitz (a16z) and Breakthrough Energy Ventures, and new participation from Greenoaks, Halo Fund, Pax Ventures, StepStone Group, BHP Ventures, Washington Harbour

Valar Atomics, scaling nuclear energy for heavy industrial power and clean hydrocarbon fuel production, led by Isaiah Taylor, has announced the closing of a $1 billion Series B financing led by Sequoia Capital. As part of this new partnership, Valar welcomes Sequoia partner Shaun Maguire to Valar’s board of directors. Sequoia was joined in this round by Apandion, Atreides Management, Conviction, Dream Ventures, HOF Capital, Point72, Riot Ventures, Snowpoint Ventures, Valor Eq

Commonwealth Fusion Systems, the world's largest and leading commercial fusion energy company led by Bob Mumgaard, Brandon Sorbom, Steve Renter, and others, has announced that it raised $1 billion of additional equity financing. This capital raise is the single largest funding round among fusion energy companies worldwide since CFS announced its $1.8 billion Series B round in 2021. With this capital, and the $863 million the company raised last year, CFS has now raised a tota

Antares, building compact nuclear microreactors to deliver reliable, mobile energy where it’s needed most: remote military bases, austere industrial sites, and, one day, deep space and underwater missions, led by Jordan Bramble and the team, has raised $470 million in Series C funding, co-led by Paradigm and Caffeinated Capital, with participation from Point72 Ventures, Shine Capital, Industrious Ventures, and others. The funding will accelerate Antares’ transition from a pro