Helios
Last updated: Jul 31, 2026
Helios Project is an Israeli deep-tech startup developing metallurgical processes for low-carbon iron and metal production, alongside lunar-resource systems intended to extract oxygen and useful metals from regolith. Its terrestrial opportunity is green iron from difficult feedstocks; its space opportunity is in-situ resource utilization (ISRU) for future lunar infrastructure.
Visit WebsiteCompany Overview
Helios began as a space-resource company attempting to produce oxygen from lunar soil, where every kilogram launched from Earth has a severe logistics penalty. The company’s public materials describe two related process concepts: a sodium-based Helios Cycle for reducing metal oxides and recovering sodium in a closed loop, and a molten-regolith-electrolysis reactor for separating oxygen and metals from lunar material. The best-supported terrestrial work concerns the sodium metallothermic route for iron. It is intended to produce iron with oxygen rather than a carbon-bearing process product, while reducing reagent consumption through recovery and recycling. The company also presents the broader platform as relevant to other metals, but public evidence is less mature for those applications than for iron and lunar oxygen.
The immediate commercial market is steel decarbonization. Helios targets iron ores that are lower grade or otherwise difficult for conventional routes, as well as tailings, slags, red mud, and other iron-bearing residues. This feedstock flexibility could matter as high-grade ore becomes more constrained and steelmakers seek lower-emission inputs. However, claims about lower energy use and zero direct carbon emissions are process-level claims, not proof of lower full-system emissions or competitive cost. A steel customer would need repeatable metallisation, acceptable impurity levels, predictable product quality, reagent recovery, safe handling, and integration with existing furnaces or downstream operations. Those requirements make continuous operation and independently measured mass and energy balances more important than a successful laboratory batch.
Commercialization evidence is meaningful but remains pre-scale. Helios has publicly disclosed seed-stage development, support from Israeli space and innovation institutions, participation in DARPA’s LunA-10 capability study, and an HILT CRC project that tests its sodium-based process on Australian iron-bearing materials. The HILT project summary describes laboratory trials, solid-liquid separation and sodium recovery, with a stated objective of moving the work from TRL 3 toward TRL 4. Helios and BlueScopeX have also announced a memorandum of understanding for a planned green-iron demonstration beginning in 2026. These signals show external technical and industrial engagement, but they do not establish a binding offtake agreement, recurring revenue, a commercial plant, or bankable economics. The key diligence question is whether pilot data converts partner interest into a repeatable qualification and scale-up program.
Helios competes with hydrogen direct-reduced iron, molten-oxide electrolysis, plasma and other electrochemical reduction methods, scrap-based electric-arc-furnace routes, and incumbent blast-furnace systems with efficiency or carbon-capture improvements. The sodium route may offer an advantage where hydrogen availability, ore quality, or electrical-load requirements constrain alternatives, but sodium inventory, corrosion, separation, contamination, and process safety could erase that advantage. The space program creates strategic relevance because oxygen and metal production from lunar regolith are enabling capabilities for cislunar logistics, yet it also depends on uncertain launch economics, lunar power and mobility infrastructure, and government or commercial demand. Public evidence supports a substantive dual-use adjacency through space infrastructure and strategic-material resilience, not a claim that Helios is already a defense contractor or military supplier.
Dual-Use Assessment
Helios has substantive commercial and security-relevant applicability, but its defense case is indirect. The same resource-processing capabilities address green iron and critical-material resilience on Earth and oxygen or metal production for future lunar infrastructure. DARPA’s LunA-10 participation is evidence of relevance to a U.S. government lunar-architecture study, not evidence of a defense procurement contract, military deployment, or weapons application.
Strategic Fit Assessment
Priority signal means this entry may be worth researching within the Claw & Talon thesis. It does not mean investable, suitable, endorsed, available, or likely to produce returns.
Helios is a credible strategic-priority signal for a dual-use deep-tech database because its process platform links industrial decarbonization, critical-material resilience, and lunar ISRU. The opportunity is technically differentiated and has external research and steel-industry engagement, but it remains an early validation-stage company rather than a commercially proven platform. Diligence should concentrate on independent mass and energy balances, sodium recovery and safety, product quality, continuous-operation data, capital required for scale-up, permitting, and conversion of pilot relationships into paid qualification or offtake.
Strategic Value to U.S.-Israel Alliance
Helios could improve industrial resilience if it can produce consistent iron from lower-grade or waste feedstocks with materially lower emissions and acceptable cost. Its lunar capability is strategically relevant as an enabling node for cislunar logistics: locally produced oxygen and metals could reduce dependence on Earth-launched mass. The DARPA LunA-10 study places the company in a serious government-led lunar architecture discussion, but the public record does not justify treating that participation as a defense contract. Strategic value therefore depends on technical validation, allied industrial adoption, and the emergence of a funded lunar market.
Key Technologies
- Sodium-based metallothermic reduction of iron oxides
- Closed-loop sodium-oxide dissociation and reagent recovery
- Solid-liquid separation for reduced iron and sodium recovery
- Processing of low-grade ores, tailings, slags, and red mud
- Molten-regolith-electrolysis reactor concepts for lunar ISRU
- Lunar oxygen and co-produced metal extraction
Use Cases & Applications
- Lower-carbon iron feedstock for steelmakers
- Iron recovery from low-grade ore and mine tailings
- Treatment of steelmaking slags and iron-bearing industrial residues
- Qualification of Australian and other variable iron-bearing feedstocks
- Lunar oxygen production for propellant and life-support logistics
- Lunar production of metals for construction and infrastructure
- Resilient domestic or allied supply of strategic iron-bearing materials
Sources and verification
This profile is based on public-source research, Claw & Talon curation, and editorial judgment. Inclusion does not imply endorsement, partnership, investment, or a recommendation to transact. Readers should still confirm current status, customers, funding, and product claims before relying on this profile. The editorial policy explains how profiles are researched, where automated drafting is used, and how corrections work.
This record lists 7 public references used for company identity, status, positioning, or material-claim review.
Public sources
The links below are visible public references used for source discipline around company identity, status, funding, customer, acquisition, public-company, or other material claims where available.
- Helios official website First-party description of the Helios Cycle, green iron, lunar oxygen, and the company’s current product framing.
- Helios Lunar Oxygen First-party description of sodium-based processing, reagent recovery, lunar oxygen, and the molten-regolith-electrolysis reactor concept.
- HILT CRC experimental evaluation project summary Project summary describing laboratory testing of Helios’s sodium-based process on Australian materials, separation stages, partners, and the TRL 3 to TRL 4 objective.
- Israeli Space Agency Helios profile Government profile identifying Helios as an Israeli startup developing lunar oxygen extraction and noting support from Israeli public institutions.
- DARPA LunA-10 capability study DARPA’s official list of LunA-10 participants, including Helios, and the scope of the commercial lunar infrastructure study.
- Helios Project and BlueScopeX memorandum Announcement of an MoU for a planned green-iron demonstration; treated as partner interest and pilot evidence, not as a binding commercial contract.
- Startup Nation Finder profile Public ecosystem metadata supporting the 2018 founding year, Petah Tikva location, employee range, startup classification, and funding-stage context.
- Profile update timestamp Last updated in the Claw & Talon database on Jul 31, 2026.
Investor Lens
What this entry is
Private startup
Why it may matter
Helios may matter as a Aerospace, Space & Drones entry with not currently an investable standalone company for Israeli technology research.
How an independent investor should read this
Not currently an investable standalone company. Read this profile as a starting point for independent verification, not as a recommendation or suitability assessment.
Evidence to verify
- Verify current status
- Verify traction
- Verify cap table/funding
- Verify regulatory/export-control issues
- Verify customer concentration
Main investor questions
- Is the company currently active, independently financeable, and raising or not raising on terms you can verify?
- What customer, revenue, product, and technical evidence supports the company story?
- What valuation, cap table, rights, and follow-on assumptions would govern any private exposure?
- Does the dual-use claim map to actual commercial and government/defense/resilience buyer evidence?
- What evidence would change the thesis or show that the profile is stale?
What not to infer
- Inclusion does not imply endorsement.
- Inclusion does not imply allocation availability or current fundraising.
- Scores do not indicate investment suitability or expected returns.
- Strategic importance does not automatically imply venture return potential.
Diligence questions
- What evidence verifies Helios's current customer traction, deployment status, and revenue concentration?
- Which technical claims are independently demonstrable today, and which remain roadmap or pilot-stage assertions?
- Where does the product create real defense, intelligence, critical-infrastructure, or emergency-response value beyond ordinary commercial adoption?
- What export-control, supply-chain, manufacturing, or classified-market constraints could affect U.S. and allied adoption?
- What would disconfirm the priority signal: weak customer references, thin technical differentiation, poor capital efficiency, or limited allied-market access?
Related sector
See the Aerospace, Space & Drones sector page for market context, related subcategories, and other Israeli companies in this part of the database.
Related companies
Need a diligence readout?
Use the profile and related checklists as a starting point. If the decision needs more context, request a company screen, founder-call prep, diligence memo, or sector readout.