Fusion and Nuclear grants
42 listings tracked right now
Grants and milestone-based programmes for fusion, advanced fission and small modular reactors. Led by the US DOE (Milestone-Based Fusion Development, ARPA-E), the UK Atomic Energy Authority and STEP, ARIA, and EU Horizon Euratom calls. Listed below are the open fusion and nuclear grant calls in that landscape, taken from each funder's own notice and re-checked on every refresh.
Energy grants divide into two families that rarely share a form. Deployment pots such as the EU Innovation Fund, the US Department of Energy and the UK Net Zero Innovation Portfolio back kit that already works, usually at 30 to 50 per cent intervention rates against matched private capital. Earlier research calls, Horizon Europe and ARPA-E and Innovate UK among them, fund lower technology readiness at far smaller cheques. Applying to the wrong family is the most common reason a strong project scores badly.
This page lists open fusion and nuclear grants currently tracked by Raise Lens — 42 of them right now, sorted with the soonest deadline first. Every listing has been classified against the sustainability taxonomy rather than matched on keywords, so what appears here is fusion and nuclear work rather than anything whose description happens to mention it.
The funders publishing fusion and nuclear grants here include DOE-ID, PAMS-SC, 43549596, among 2 others. Who is funding matters as much as what: eligibility, reporting burden and the realistic timeline to a decision vary far more between funders than between individual calls.
Geographic coverage on this page spans GLOBAL, EUROPE. Eligibility is usually tied to where the work happens or where the applying organisation is registered, and the two are not always the same — worth checking before investing time in an application.
5 of these close within the next 30 days. Deadlines are taken from the source listing and re-checked on every refresh, but the originating funder remains the authority — always confirm against the official notice before you submit.
Advanced Nuclear Energy Licensing Cost-Share Grant Program
••••• organisation
This funder grant provides cost-share funding to support the licensing and regulatory approval of advanced nuclear energy technologies, reducing financial barriers for developers. Eligible applicants include nuclear technology companies, utilities, and research institutions seeking to commercialize next-generation nuclear reactors.
FY 2026 Continuation of Solicitation for Office of Science Financial Assistance Program
••••• organisation
The Office of Science at the U.S. Department of Energy announces a continuing annual open solicitation for fundamental scientific research and development across seven program areas: Advanced Scientific Computing Research, Basic Energy Sciences, Biological and Environmental Research, Fusion Energy Sciences, High Energy Physics, Nuclear Physics, and Isotope R&D and Production. This grant supports researchers at universities, national laboratories, and other institutions conducting work aligned with DOE's mission in energy, physics, and environmental sciences.
The Genesis Mission: Transforming Science and Energy with AI
••••• organisation
The Genesis Mission funds interdisciplinary teams developing AI models and workflows to accelerate scientific discovery and R&D across energy, environmental, and nuclear challenges aligned with DOE priorities. Eligible applicants include National Laboratories, academia, U.S. industry, and consortia, with Phase I small-team and Phase II large-team tracks across nine topic areas.
Euratom Ad-hoc 2021-2027
••••• organisation
FuseNet is calling for organizations to host and organize mini-workshops focused on fusion energy research and development. This grant supports the convening and knowledge-exchange activities within the European fusion research community.
Key enabling technologies for fusion power plants (European Partnership on Fusion Energy)
••••• organisation
This is a callable innovation action grant supporting the development of key enabling technologies for fusion power plants under the European Partnership on Fusion Energy. It funds research, development, and demonstration of fusion-related technologies for eligible European consortia.
Prospective evaluation of nuclear power potential for shipping
••••• organisation
This grant funds prospective research and evaluation of nuclear power technology as a decarbonization pathway for the shipping sector, supporting feasibility studies, technical assessments, and partnership development. It targets consortia including industry, research institutions, and policymakers working on zero-emission maritime transport solutions.
Key enabling technologies for fusion power plants
••••• organisation
This is a callable innovation action grant supporting key enabling technologies for fusion power plants under the European Partnership on Fusion Energy. It funds research, development, and demonstration of fusion energy technologies to advance Europe's fusion energy roadmap.
Expression of Interest for IPCEI Project in Innovative Nuclear Technology
••••• Agency
This is an Expression of Interest call for the IPCEI (Important Project of Common European Interest) in Innovative Nuclear Technology, administered by the Swedish Energy Agency. The programme supports research, development, and deployment of advanced nuclear technologies across eligible European participants.
Fusion energy developers: engage early with regulators
••••• Agency
This is guidance and early regulatory engagement support for fusion energy developers working with UK regulators (the funder and Health and Safety Executive) before formal permit applications. It is not a direct funding call but rather a regulatory advisory service to help fusion companies navigate approval pathways.
Form: Part RSR-B8: apply for or vary an unsealed sources and radioactive waste for large‑scale fusion activities permit
••••• Agency
This is a regulatory permit application form (Part B8) for organizations conducting large-scale fusion activities that handle unsealed radioactive sources and waste. Applicants must complete this form to obtain or modify their radioactive substances activity permit from the UK the funder.
Affordable Rural Cooperative (ARC) Energy Program
••••• organisation
This funder grant provides up to $175 million in loans and grants to eligible electric cooperatives for deploying advanced transmission infrastructure and nuclear power to reduce emissions and improve rural electric system reliability. Applicants must be rural electric cooperatives seeking to achieve net emission reductions through infrastructure modernization and clean energy deployment.
Atoms4NetZero: Nuclear Energy Integration Support for Net-Zero Transitions
••••• organisation
Atoms4NetZero provides technical assistance and knowledge-sharing support to IAEA Member States integrating nuclear energy into their clean energy transitions and net-zero strategies. The programme targets government and institutional actors seeking to deploy nuclear as part of their decarbonization pathways.
Technical Cooperation Programme
••••• organisation
The IAEA Technical Cooperation Programme provides expert missions, training, equipment, and fellowships to Member States to apply nuclear science and technology for peaceful purposes across energy, health, food security, and environmental protection. Eligible applicants are IAEA Member States seeking to build capacity and deploy nuclear technologies in these domains.
An accelerator programme for quantum and clean-energy start-ups – Phase 2: Market-entry readiness
••••• organisation
This grant supports early-stage startups in energy and quantum technology sectors preparing for market entry through expert-led workshops and cross-sector collaboration. It targets founders and teams ready to transition from development to commercial launch.
A Clean-Energy Accelerator Programme – Phase 1: Early Stage
••••• organisation
Early-stage accelerator programme providing educational support and workshops to founders developing startup concepts in energy conversion, storage, and quantum technologies. Eligible for pre-revenue founders building in climate-tech and quantum sectors.
A Deep-Tech Venture Fund
••••• organisation
The funder Core Fund provides pre-seed and seed-stage equity investments in scientist-entrepreneurs building deep-tech companies across climate, energy, biotech, quantum computing, and advanced materials. The fund acts as a first-check investor, leading initial capital raises for science-based spinouts.
Pro-Nuclear Investment Network
••••• organisation
Nucleation Syndicate is an invitation-only network of pro-nuclear and climate investors who review and individually elect to participate in select equity deal opportunities in advanced nuclear, carbon capture, and grid enhancement. There is no cost to join and no obligation to invest.
Advanced Energy Venture Fund II
••••• organisation
Nucleation Fund II is a $250M+ venture capital fund investing in innovative companies advancing nuclear energy and climate solutions. It targets institutional investors committing $5M or more to portfolio companies in advanced nuclear, carbon capture, and grid enhancement.
Early-Stage Nuclear and Decarbonization Venture Fund
••••• organisation
Nucleation Fund I is an evergreen venture fund investing up to $3 million per investor in next-generation nuclear and carbon innovation ventures. It targets accredited and high net worth investors seeking exposure to advanced nuclear energy and carbon removal/capture technologies.
Nuclear Safety: Support for work on nuclear safety through a partnership with philanthropic funders
••••• Fund
This grant supports work on nuclear safety through a partnership between the funder and Longview Philanthropy. The funding targets organizations working to advance nuclear safety outcomes, though specific eligible activities and applicant types are not detailed in the available description.
Industrial Decarbonization Strategy
••••• organisation
This grant backs early-stage companies developing breakthrough zero-carbon technologies across nuclear, hydrogen, sustainable fuels, electrofuels, and textile recycling. It targets startups with strong economic viability alongside significant decarbonization impact.
A Major Venture Fund for Deep-Tech Innovation
••••• organisation
The funder Evergreen Vehicle is a permanent capital fund investing in breakthrough science and technology across fusion energy, space infrastructure, quantum computing, critical materials, industrial decarbonization, and life sciences. The fund supports companies from earliest institutional rounds through growth stage with multi-decade investment horizons unconstrained by conventional fund cycles.
A Deep Tech Venture Fund
••••• organisation
The funder Venture Fund provides pre-seed and early-stage equity investments in deep tech companies developing transformative technologies across energy, water, food, health, critical infrastructure, and defense sectors. The fund targets exceptional founders building solutions in industrial, biotech, robotics, and advanced manufacturing with focus on abundance, resilience, and strategic advantage.
Horizon Europe – European Atomic Community Programme for Research and Training (Euratom Programme)
••••• organisation
Horizon Europe's Euratom Programme funds research, innovation, and training in nuclear energy and radiation applications across Europe. The programme supports projects from universities, research institutions, and companies working on nuclear fission, fusion, radiation protection, and related scientific advancement.
Transition Cross-Atlantic Fund
••••• organisation
The funder invests $1–8m in pre-seed, seed, and Series A founders building AI-enabled solutions at the intersection of climate, deep tech, energy, and industrial robotics. The fund backs European, UK, and US-based teams solving physical-world problems in energy transition, advanced computing, and climate-adjacent sectors.
Nuclear Safety grant programme
••••• Fund
This grant supports work on nuclear safety through a partnership between the funder and Longview Philanthropy. It targets organizations working to improve nuclear safety outcomes, though specific eligibility criteria and application details are not provided in the listing.
a European deep-tech climate equity fund
••••• organisation
Pre-seed and seed investment fund for deep-tech climate companies founded by scientist-entrepreneurs across Europe, targeting transformative scientific innovations in decarbonisation that reduce costs and emissions across industrial sectors. Structured as a closed-ended alternative investment fund (limited partnership) backing companies in hydrogen, nuclear, materials, circular economy, and sustainable fuels.
A Climate-Focused Venture Fund
••••• organisation
MCJ Collective Venture Fund backs early-stage founders building climate and clean energy solutions across electrification, nuclear, grid infrastructure, and AI-enabled industrial tech. The fund targets companies rewriting industries to accelerate the clean energy transition.
A US venture fund for deep-tech innovation
••••• organisation
The funder' Tough Tech Fund invests in early-stage companies developing breakthrough technologies in foundational industries including energy, climate, advanced materials, biotech, and AI. The fund targets founders building solutions that require deep technical validation and long-term capital commitment through manufacturing, deployment, and scale.
a US venture-capital seed fund
••••• organisation
Seed and early-stage equity investments in mission-driven, founder-led companies developing disruptive technologies across nuclear fusion, sustainable agriculture, energy, robotics, climate, AI, and biotech. The fund targets companies with potential to reinvent entire industries at the frontier of deep tech.
A Permanent Capital Vehicle for Breakthrough Science and Technology
••••• organisation
The funder operates a permanent capital vehicle investing in breakthrough science and technology companies across fusion energy, space infrastructure, quantum computing, critical materials, industrial decarbonization, and life sciences. The fund invests from earliest institutional rounds through growth stage, with capital horizons matched to long development timelines.
A Cross-Atlantic Climate and Deep-Tech Venture Fund
••••• organisation
The funder Fund backs early-stage founders (pre-seed through Series A) building full-stack companies at the intersection of AI and physical-world applications, including climate tech, deep tech, advanced computing, energy, and industrial robotics. The fund targets companies across Europe, UK, and US that combine software and hardware innovation.
Nuclear Accelerator
••••• organisation
Nuclear Accelerator is a funder-backed innovation finance programme supporting nuclear technology enterprises in France. The scheme targets early-stage and growing companies developing advanced nuclear solutions, though specific funding amounts and application deadlines are not detailed.
Staff Support for Regional Engagement on Radioactive Materials Transportation Planning
••••• organisation
This grant funds regional staff liaison positions to facilitate coordination between the U.S. Department of Energy and State governments on planning for radioactive materials transportation, specifically commercial used nuclear fuel and high-level radioactive waste. Four awards will be made, one per U.S. region (Eastern, Western, Midwestern, Southern), to support dialogue and collaborative planning.
Staff Support to Tribal Radioactive Materials Transportation Committee for Engagement with a US Federal Energy Agency on Radioactive Materials Transportation Planning
••••• organisation
This grant provides staff support to the Tribal Radioactive Materials Transportation Committee to enable federally-recognized tribes to engage meaningfully with the U.S. Department of Energy on planning for large-scale transportation of commercial used nuclear fuel, high-level radioactive waste, and other radioactive materials. It funds tribal capacity-building and coordination activities to ensure tribes can participate effectively in DOE radioactive materials transportation planning and address related program impacts on tribal lands.
Request for Information - Gauging Investor Interest in the Development and Commercialization of Subsurface Energy Technologies
••••• organisation
This RFI seeks input from investors, financial institutions, and stakeholders on opportunities to connect private capital and public-private partnerships to subsurface energy technologies (coal, oil & gas, and geothermal). While framed as information-gathering rather than a direct funding call, it signals DOE's intent to mobilize investment in these sectors and may lead to future funding mechanisms.
European Deep Tech VC Fund
••••• organisation
European venture capital fund investing in deep tech companies developing ground-breaking technologies in hardware, quantum computing, robotics, energy, and semiconductors. Targets companies from early growth stages onward with sustainable competitive advantages addressing fundamental challenges.
Nuclear Safety programme
••••• Fund
This grant supports work on nuclear safety through a partnership with Longview Philanthropy, administered by the funder. It targets organizations working to improve nuclear safety outcomes, though specific eligibility criteria and application details are not provided in the listing.
Coordinated Research Activities
••••• organisation
The IAEA coordinates international joint research projects in nuclear science and its applications across energy, health, and environmental domains, providing funding and knowledge-sharing support to Member States. Eligible researchers and institutions from IAEA Member States can participate in collaborative research activities with coordinated resources.
a European early-stage venture fund
••••• organisation
Earlybird VC backs European emerging tech founders from Pre-Seed to Series A with ticket sizes up to €12m, focusing on fintech, AI, deep tech (including nuclear fusion), and enterprise software. The fund is most active at Seed stage (60% of investments) and welcomes early-stage founders.
European Growth Capital Fund
••••• organisation
Capricorn Fusion is a venture capital fund investing in innovative technology companies under the funder umbrella. The fund targets early-stage technology ventures, though specific investment thesis and sector focus are not disclosed.
Sizewell C Community Fund
••••• Foundation
A community fund managed by the funder to support local communities in Suffolk affected by or associated with the Sizewell C nuclear development project. The fund provides grants to community organizations and groups to address local needs and priorities in the region.