Helion Energy Startup Diligence Report
Proceed only to deep confirmatory diligence. A positive thesis requires proving plant-level energy balance, repeatability, regulatory/site readiness, customer contract economics, manufacturing scalability, fuel-cycle feasibility, adequate runway, and legal/IP/insurance sufficiency under expert review.
Helion Energy Startup Diligence Report
Helion Energy is a credible public-source fusion unicorn candidate with a $5.43B CB Insights valuation anchor, large disclosed financings, high-profile investors, a Microsoft first-plant PPA target, a Nucor strategic collaboration, and substantive public technical materials. The company remains extremely high risk because public sources do not prove commercial net electricity, plant reliability, 2028 delivery, D-He-3 fuel-cycle economics, contract economics, audited financials, or regulatory completion.
Helion has public technical milestones, but no public evidence of commercial plant-level net electricity, and the Polaris page reframes earlier “net electricity” language.
Diligence request: Independent technical review of test data, energy accounting, diagnostics, reliability, fuel-cycle model, and plant commissioning plan.
The first plant target requires successful machine scale-up, site construction, permitting, interconnection, customer acceptance, and operations by a public deadline.
Diligence request: Review integrated master schedule, permit matrix, interconnection studies, EPC plan, critical path, contingency budget, and Microsoft contract remedies.
Public funding and valuation anchors do not reveal audited financials, runway, burn, debt, unit economics, or current capitalization.
Diligence request: Obtain audited statements, management accounts, cash/debt schedule, capex budget, unit economics, cap table, and financing documents.
Series F proceeds are meant to scale U.S. manufacturing of capacitors, magnets, and semiconductors, but yield/cost/supplier readiness are private.
Diligence request: Review factory capex, supplier contracts, quality system, BOM, yield/failure data, inventory, and alternates.
Microsoft and Nucor are valuable public signals, but contract economics, enforceability, cancellation, penalties, and acceptance criteria are not public.
Diligence request: Review executed contracts, amendments, pricing, deposits, credit support, termination rights, liquidated damages, and customer references.
NRC indicates commercial fusion is regulated and no U.S. fusion machine commercially provides grid power; Helion still must navigate applicable plant/site approvals.
Diligence request: Counsel review of regulator jurisdiction, licenses/permits, SEPA/CUP conditions, environmental commitments, tritium/materials controls, and open agency items.
Helion’s long-term fuel cycle depends on rare helium-3 production and high-temperature D-He-3 operation, with tritium/deuterium validation along the way.
Diligence request: Review fuel mass balance, isotope inventory, tritium permits/procedures, supply contracts, waste/shielding plan, and sensitivity analysis.
Public leadership is credible, but headcount, attrition, compensation, open critical roles, and employee-relations/safety data are not public.
Diligence request: Request full org chart, headcount history/plan, attrition, key-person plan, employment agreements, compensation, equity plans, OSHA/safety records, and culture data.
Public evidence supports major financing and a $5.43B CB Insights valuation anchor, but audited financials, revenue, backlog economics, burn, debt, runway, cap table, and unit economics are not public.
not publicly verifiable confidence: high
No public audited financial statements, management accounts, revenue, gross margin, cash flow, cash balance, debt, backlog, AR aging, or budget-to-actuals were found.
| financial area | public status | risk if missing | diligence request |
|---|---|---|---|
| Audited financials / management accounts | Not publicly disclosed | Cannot assess burn, runway, capex, or going-concern needs. | Audited statements, monthly management accounts, cash, debt, and budget-to-actuals. |
| Revenue / backlog | Customer announcements public; economics private | Public PPAs/collaborations may be conditional or non-revenue. | Backlog schedule, signed contracts, deposits, price, milestones, and revenue-recognition memo. |
| Unit economics | 1 cent/kWh aspiration and plant capacity goals public; cost model private | Commercial margins may be unfinanceable even if physics works. | Plant capex, O&M, fuel-cycle, availability, interconnection, warranty, and insurance model. |
| Capital structure | Investors and rounds public; terms private | Preference stack, debt, strategic rights, and tranches could impair equity value. | Post-money cap table, investor rights, debt/SAFE/note schedule, and liquidation waterfall. |
partially verified confidence: low
Public projections are milestone-based: Polaris demonstration, Orion construction, Microsoft 2028 target, and manufacturing scale-up; no financial forecast is public.
partially verified confidence: medium
Investor names and financing amounts are public, but ownership, liquidation preferences, option pool, notes, warrants, debt, and side letters are not.
| date | event | amount or value | diligence read |
|---|---|---|---|
| 2014-2015 | SEC Form D offerings | Historical private offerings | Confirms historical financing activity but not current ownership. |
| 2021-11-05 | CB Insights unicorn row | $5.43B valuation listed | Screening anchor; confirm against financing documents. |
| 2021-11-05 | $500M fundraise | $500M announced; independent news notes possible additional milestone funding | Major financing credibility but terms private. |
| 2025-01-28 | Series F | $425M announced | Supports manufacturing/first-plant scale-up; runway unknown. |
Amounts are headline public disclosures and should not be treated as cash on balance sheet.
partially verified confidence: medium
SEC Form D and public articles provide financing context; accounting policies, tax, grant/deposit treatment, project accounting, and revenue recognition are not public.
Helion publicly describes a pulsed FRC fusion generator using D-He-3 fuel and direct energy recovery, with Polaris as the electricity-demonstration machine and Orion as first plant; product performance, reliability, and economics require non-public technical validation.
partially verified confidence: medium
The public product is a fusion power plant/generator architecture, not a shipped commercial SKU: Polaris is a prototype/demonstrator, and Orion is the first plant target linked to Microsoft.
| claim area | public claim | status | key question |
|---|---|---|---|
| Fuel | Long-term D-He-3 cycle; testing may use D-D, D-T, D-He-3. | Partially verified as company claim | Can He-3 production and tritium handling scale economically and legally? |
| Energy conversion | Direct recovery of electricity from plasma expansion into capacitor banks. | Verified as company architecture claim | What fraction of fusion energy is recovered after all system losses? |
| Commercial plant | Orion/Microsoft plant targets 50 MW+ after ramp. | Partially verified as announced target | What acceptance tests, uptime, and penalties apply? |
| Scale-out plant | Nucor collaboration references 500 MWe at a steel facility. | Partially verified relationship signal | Is there a binding site/offtake agreement or only collaboration? |
| asset or milestone | public evidence | diligence read | remaining gate |
|---|---|---|---|
| Prototype lineage | Technology page names LSX, IPA, IPA-C, Grande, Venti and Polaris narrative. | Shows long operating history, not commercial proof. | Independent performance dataset and machine availability metrics. |
| Polaris | Designed to demonstrate electricity from fusion and validate fuel mixes. | Important step toward first plant; not equivalent to grid-ready net electricity. | Energy balance, pulse repetition, reliability, heat/neutron management, and third-party review. |
| D-T fusion measurement | Company reports measurable thermonuclear D-T fusion and 150M°C. | Positive physics milestone with explicit remaining work. | Higher yield, stable larger FRCs, translation, and input power. |
| Fuel cycle | D-He-3 target, He-3 scarcity, internal production plan. | Commercial differentiator and risk multiplier. | Mass balance, inventory, tritium decay timing, permits, and cost. |
Public evidence identifies Microsoft, Constellation, Nucor, and site/community stakeholders, but revenue by customer, contract terms, customer concentration, supplier terms, and severed relationships are not public.
partially verified confidence: medium
Microsoft is the only publicly named first-plant power purchaser; Nucor is a strategic industrial collaboration for a larger 500 MWe concept.
| counterparty | relationship | capacity or scope | verification read |
|---|---|---|---|
| Microsoft | Fusion PPA | 50 MW+ after 1-year ramp, initial operations targeted 2028 | High-profile demand signal; private terms and conditions are critical. |
| Constellation | Power marketer/transmission manager for Microsoft project | Transmission/power marketing support | Adds grid-market capability but contract responsibilities are private. |
| Nucor | Collaboration and investor | 500 MWe fusion plant concept at steelmaking facility | Strategic industrial signal; site/offtake economics not public. |
| Chelan County / Malaga community | Site/land and local permitting context | Orion first plant site | Site progress helps but local approvals and interconnection remain gating. |
| area | public signal | hidden risk | records needed |
|---|---|---|---|
| Microsoft PPA | Named customer, 50 MW+ target, 2028 initial operations | Penalties, cancellation, COD definition, interconnection, and price may be conditional. | Executed PPA, amendments, milestones, pricing, deposits, LDs, credit support. |
| Nucor collaboration | 500 MWe industrial-plant collaboration and investor | May be non-binding or dependent on first plant success. | Collaboration agreement, investment docs, site criteria, exclusivity, offtake economics. |
| Manufacturing suppliers | Series F cites capacitors, magnets, semiconductors | Supplier concentration, long-lead materials, QA failures, and cost inflation. | Supplier list, purchase orders, specs, alternates, qualification and yield data. |
| Revenue concentration | Only a few named strategic accounts public | Single first-plant customer concentration and binary acceptance risk. | Pipeline, backlog, customer references, LOIs, deposits, cancellation history. |
partially verified confidence: medium
Strategic relationships include investors and partners such as Sam Altman, Mithril, Capricorn, Good Ventures, Nucor, Microsoft/Constellation, Lightspeed, and SoftBank Vision Fund 2.
not publicly verifiable confidence: high
No public revenue by customer, recognized revenue, ARR, backlog, deferred revenue, deposits, or PPA price information was found.
not publicly verifiable confidence: low
No public evidence of significant severed customer, partner, or supplier relationships was found in reviewed sources.
not publicly verifiable confidence: medium
Public sources identify manufacturing categories—capacitors, magnets, semiconductors—but not supplier names, contract terms, lead times, qualification status, or alternates.
| area | public evidence | execution risk | request |
|---|---|---|---|
| Leadership depth | About page lists technical and operating leaders | Key-person concentration and succession risk in specialized technology. | Org chart, role accountabilities, retention, and technical review board composition. |
| Hiring | Careers page lists open roles and benefits | Open roles may indicate growth or critical unfilled gaps. | Hiring plan, time-to-fill, attrition, critical-role map, compensation bands. |
| Capacitors/magnets/semiconductors | Series F use of proceeds targets faster manufacturing | Hardware bottlenecks and QA failures could delay first plant. | Supplier qualification, yield, test failure rates, inventory, and manufacturing capex. |
| Fuel and diagnostics | Polaris and fuel blogs disclose multi-fuel validation and diagnostics concepts | Measurement uncertainty can undermine milestone credibility. | Diagnostic uncertainty budget, calibration procedures, and external validation. |
Helion competes in a crowded private fusion market against tokamak, Z-pinch, FRC, inertial, and other approaches; public differentiation is strong but not yet commercially proven.
partially verified confidence: medium
Helion is differentiated by direct electricity recovery and D-He-3/FRC positioning, while CFS, Zap, and TAE publicly pursue alternative fusion architectures.
| company | approach | positioning | implication for helion |
|---|---|---|---|
| Helion | Pulsed FRC, D-He-3, direct energy recovery | First-plant PPA target and direct electricity architecture | Differentiated but novel; requires system-level proof. |
| Commonwealth Fusion Systems | High-temperature superconducting magnets / tokamak | Large private fusion competitor with magnet/tokamak path | Competes for capital, talent, partners, and regulatory mindshare. |
| Zap Energy | Sheared-flow-stabilized Z-pinch | Compact approach without large magnets in public story | Alternative simplicity narrative could challenge Helion’s cost thesis. |
| TAE Technologies | Field-reversed configuration / advanced fuel pathway | Long-lived private fusion platform | Overlapping FRC talent/IP/advanced-fuel ecosystem. |
Competitor rows use competitor-owned public pages, not normalized third-party benchmarking.
| dimension | helion position | advantage case | risk case |
|---|---|---|---|
| Electricity conversion | Direct electricity recovery | Avoids steam cycle and may reduce balance-of-plant complexity. | Power electronics and energy accounting must work pulse after pulse at plant scale. |
| Fuel | D-He-3 long-term fuel | Lower neutron ambition than D-T if achieved. | He-3 production and 200M°C conditions are hard and not publicly proven. |
| Commercial timing | 2028 Microsoft initial operations target | Creates visible market deadline and customer pull. | Deadline may force schedule/cost tradeoffs or contractual exposure. |
| Manufacturing | Build capacitors, magnets, semiconductors faster in U.S. | Vertical integration may reduce bottlenecks. | Hardware scale-up may consume capital before product validation. |
Helion’s public GTM is strategic-account, infrastructure-project, and plant-development led; sales productivity metrics, budget, pipeline, and repeatable pricing are not public.
partially verified confidence: medium
Public strategy centers on first fusion plant delivery to Microsoft, then scale to additional industrial plants such as Nucor’s announced concept.
| channel | public evidence | commercial logic | risk |
|---|---|---|---|
| Strategic enterprise PPA | Microsoft PPA for first plant | Anchor customer validates demand and shapes plant delivery. | Binary first-customer concentration and contractual remedies. |
| Industrial energy partner | Nucor 500 MWe collaboration | Steelmaking load has high clean baseload demand. | Scale-up from 50 MW to 500 MWe may require multiple generations. |
| Project/site development | Orion in Chelan County / Malaga | Site progress converts story into asset development. | Permitting, construction, interconnection, community, and transmission risk. |
| Investor/strategic network | Altman, Mithril, Capricorn, Nucor, Lightspeed, SoftBank, Good Ventures | Capital and relationships may open customers and suppliers. | Strategic rights and governance constraints may affect exits. |
| metric | public status | why it matters | request |
|---|---|---|---|
| Pipeline count / stage conversion | Not public | Determines whether Microsoft/Nucor are outliers or repeatable demand. | CRM export, account plans, stage definitions, and conversion history. |
| Sales cycle and deployment cycle | Only 2028 target disclosed | Utility/industrial projects may take years before revenue. | Sales-cycle history, project schedules, permitting dependencies, and procurement gates. |
| Customer acquisition cost / GTM budget | Not public | Project development may require specialized engineering, legal, and regulatory spend. | GTM headcount, budget, customer-specific pursuit costs, and win/loss analysis. |
| Repeatable pricing | Not public | Unit economics cannot be assessed without PPA pricing and capex. | Pricing model, sensitivity cases, PPA rates, escalation, curtailment, and credit terms. |
partially verified confidence: medium
Microsoft is the most important publicly named customer; Nucor is a strategic industrial partner/customer prospect.
inconclusive confidence: low
New business likely comes from strategic clean-power buyers, industrial baseload loads, data centers, utilities/power marketers, and public-sector/regional siting partnerships; this is inferred from public relationships, not a disclosed pipeline.
not publicly verifiable confidence: low
No public sales productivity model exists; conventional metrics such as quota attainment, CAC, and conversion rates may be less relevant than project-development milestones.
not publicly verifiable confidence: low
Public funding suggests resources for manufacturing and first-plant execution, but the GTM budget and required project-development spend are private.
Helion’s R&D story is substantive and public, with prototype history, Polaris, D-T measurements, and fuel/direct-recovery blogs; core gates around energy balance, fuel cycle, reliability, and plant scale remain unresolved publicly.
partially verified confidence: medium
Public pages show technical leadership and active hiring; the full R&D org, budget, lab operations, safety governance, and external validation process are private.
| person | public role or status | source read | diligence request |
|---|---|---|---|
| David Kirtley | Co-founder / CEO | Central public executive and author of funding blogs. | Employment agreement, equity, retention, succession, and key-person insurance. |
| Chris Pihl | Co-founder | Named in company founding narrative. | Current role, equity, IP assignment, and retention terms. |
| John Slough | Co-founder / inventor in patent record | Founder and patent inventor linkage. | IP assignment chain, consulting/employment status, invention assignment coverage. |
| Current leadership team | George Votroubek, Anthony Pancotti, Lynn Miller, Prag Jain, Savanna Thompson and others named publicly | Broad leadership functions visible. | Full org chart, span-of-control, vacancies, compensation, and board reporting. |
partially verified confidence: medium
The pipeline is prototype-to-first-plant: Polaris electricity demonstration and Orion/Microsoft plant, with future Nucor/industrial scale-out if gates are met.
| gate | public signal | risk | diligence artifact |
|---|---|---|---|
| Plasma temperature and fusion reactions | 150M°C and D-T measurement announced | Milestone may not translate to net plant energy. | Diagnostic calibration, test logs, neutron/gamma data, third-party review. |
| Direct electricity recovery | Polaris designed to recover/store electricity on capacitor bank | Sub-system recovery may not equal full-system net electricity. | Energy accounting, capacitor-bank measurements, parasitic loads, repeatability statistics. |
| Fuel-cycle readiness | D-He-3 target; He-3 to be produced internally | Fuel availability and tritium handling could bottleneck deployment. | Fuel-cycle model, inventory plan, permits, isotope procurement/production records. |
| Prototype to plant scale | Orion first plant under construction and Microsoft target | Engineering scale-up, availability, and maintenance may slip. | Integrated master schedule, reliability growth plan, FMEA, commissioning plan. |
Public pages identify founders, leadership, hiring, and benefits; full org chart, headcount, turnover, compensation, incentive plans, employee relations, and safety-culture data are private.
partially verified confidence: medium
No complete public org chart exists; public leadership names support only a partial map.
| topic | public signal | hidden risk | request |
|---|---|---|---|
| Headcount by function/site | Hiring page indicates open roles but no full headcount. | Understaffing in regulatory, safety, manufacturing, or controls may delay milestones. | Current and planned headcount by department/site, open reqs, critical-role risks. |
| Turnover and retention | Not public | Loss of specialized plasma/power electronics talent can be severe. | Voluntary/involuntary attrition, regretted-loss list, retention grants, key-person plan. |
| Compensation and equity plans | Benefits public; compensation/equity private. | Option pool, refresh grants, and strategic investor rights may affect hiring and dilution. | Compensation bands, offer data, option plan, refresh policy, and 409A history. |
| Employee relations and safety culture | No complete public record found. | High-energy hardware operations increase safety, training, and culture risk. | OSHA logs, incident reports, employee complaints, training records, engagement survey. |
not publicly verifiable confidence: medium
Public careers page shows hiring, but historical/projected headcount by function/location is not public.
verified confidence: medium
Public biographies and founder names are available for key leaders; independent reference checks and employment terms are not.
not publicly verifiable confidence: low
Compensation, bonuses, retention grants, severance, consulting arrangements, and benefits costs are not public.
not publicly verifiable confidence: low
Option pool, equity grants, vesting, refresh policy, 409A history, and dilution are not public.
not publicly verifiable confidence: low
No complete public record of employee relations, complaints, investigations, OSHA issues, or safety culture was available.
| topic | public status | risk | request |
|---|---|---|---|
| Litigation | No comprehensive public legal search completed from data-room sources | Claims, IP disputes, employment disputes, or contract claims may be missed. | Counsel litigation search, threatened-claims schedule, settlement agreements, board minutes. |
| Environmental / safety | Public site narrative and general fusion regulatory FAQ only | Radiological/materials, high-voltage, pressure, tritium, neutron shielding, and worker-safety liabilities. | Environmental permits, safety analyses, OSHA logs, emergency plan, radiation/materials controls. |
| Insurance | Not publicly disclosed | Coverage may not match first-of-a-kind fusion plant liabilities and customer remedies. | Insurance policies, exclusions, limits, deductibles, claims history, nuclear/radiological endorsements. |
| Contracts | Announcements public; executed documents private | Undisclosed obligations may constrain financing, delivery, or exit. | Material contract schedule, PPAs, land lease, EPC, supplier, customer, debt, investor side letters. |
not publicly verifiable confidence: low
No public turnover metrics, regretted-loss list, or retention plan was found.
Public evidence covers general fusion regulation, Orion site narrative, material relationship announcements, and at least one patent record; litigation, contracts, insurance, environmental/safety records, permits, and regulatory correspondence require legal data-room review.
not publicly verifiable confidence: low
No comprehensive public litigation docket review or counsel letter was available; public sources reviewed did not provide a complete pending-claims schedule.
not publicly verifiable confidence: low
No public list of lawsuits initiated by Helion was identified in reviewed sources.
partially verified confidence: medium
Public site and NRC sources show regulatory context but not full environmental, materials, radiological, tritium, worker-safety, or emergency-management records.
| area | public record | verification read | open question |
|---|---|---|---|
| Fusion regulation | NRC FAQ: no commercial U.S. fusion electricity; NRC/Agreement States regulate fusion machines. | Authoritative industry-level control. | Which regulator and permit/license pathway applies to Orion and future plants? |
| Orion local approvals | Helion states MDNS/SEPA and CUP followed by construction milestones. | Company source supports progress but needs local record review. | All permit conditions, appeal status, interconnection, environmental commitments. |
| Patent/IP | US9524802B2 assigned to Helion Energy Inc.; inventor John Slough. | Patent record supports public IP asset. | FTO, claim strength, assignments, licenses, trade secrets, export controls. |
| Material contracts | Microsoft PPA, Nucor collaboration publicly announced. | Material relationship evidence; contract terms private. | Pricing, penalties, milestones, exclusivity, change of control, and liability caps. |
partially verified confidence: medium
Public patent evidence supports at least one Helion-assigned patent, but full IP portfolio, assignments, licenses, encumbrances, FTO, and trade secrets are private.
not publicly verifiable confidence: low
Insurance policies, limits, exclusions, claims history, nuclear/radiological endorsements, customer indemnities, and construction coverage are not public.
partially verified confidence: medium
Public material contract signals include Microsoft PPA, Constellation role, Nucor collaboration/investment, land/site context, investors, and supplier/manufacturing categories; executed documents are private.
partially verified confidence: medium
NRC FAQ establishes commercial fusion regulation and industry status; Helion public sources describe local Orion approvals and construction but do not provide final operating/regulatory clearance.
| ID | Claim | Status | Sources |
|---|---|---|---|
| EC-001 | CB Insights lists Helion Energy as a unicorn valued at $5.43B, joined on 2021-11-05, in the U.S. Industrials category. | verified high | SRC-001 |
| EC-002 | SEC public filings identify Helion Energy, Inc. as a Delaware corporation with historical Form D offerings in 2014 and 2015. | verified high | SRC-002 |
| EC-003 | Helion announced a $500M raise in 2021 led by Sam Altman with participation by existing investors. | verified high | SRC-003 |
| EC-004 | Helion announced an oversubscribed and upsized $425M Series F in January 2025 with Lightspeed, SoftBank Vision Fund 2, a university endowment, Altman, Mithril, Capricorn, Good Ventures, and Nucor. | verified high | SRC-004SRC-023 |
| EC-005 | Helion announced a fusion power purchase agreement with Microsoft for at least 50 MW, with initial operations targeted in 2028 and Constellation supporting power marketing/transmission. | partially verified medium | SRC-005 |
| EC-006 | Helion and Nucor announced plans to develop a 500 MWe fusion power plant at a Nucor steelmaking facility, with Nucor investing in Helion. | partially verified medium | SRC-006 |
| EC-007 | Helion publicly states Orion is under construction in Chelan County/Malaga, Washington, after site work and local permitting milestones. | partially verified medium | SRC-007SRC-022 |
| EC-008 | Helion’s public technology claim is a pulsed field-reversed-configuration system using D-He-3 fuel and direct energy recovery. | verified medium | SRC-008SRC-011 |
| EC-009 | Helion’s Polaris page reframes earlier “net electricity” language toward demonstrating electricity from fusion and capacitor-bank recovery. | partially verified high | SRC-009 |
| EC-010 | Helion states D-He-3 fusion needs about 200M°C and that helium-3 scarcity requires an engineered fuel cycle. | verified medium | SRC-010 |
| EC-011 | Helion reported measurable D-T fusion in Polaris-related work and 150M°C conditions while acknowledging remaining work on FRC size/stability, translation, input power, and yield. | partially verified medium | SRC-012 |
| EC-012 | The NRC states no U.S. fusion machines commercially provide grid electricity, and U.S. commercial fusion machines fall under NRC/Agreement State regulation. | verified high | SRC-013 |
| EC-013 | Helion publicly identifies founders and leadership including David Kirtley, Chris Pihl, John Slough, George Votroubek, and current executives. | verified medium | SRC-014 |
| EC-014 | Helion’s careers page shows active hiring and benefits but does not disclose complete headcount, attrition, compensation, or employee-relations issues. | partially verified medium | SRC-015 |
| EC-015 | A public patent record identifies Helion Energy Inc. as assignee for US9524802B2, invented by John Slough. | verified high | SRC-016 |
| EC-016 | CFS, Zap Energy, and TAE publicly present alternative fusion approaches competing for talent, capital, supply chain, and customer attention. | verified medium | SRC-019SRC-020SRC-021 |
| EC-017 | Public sources do not disclose Helion audited financial statements, revenue, gross margin, cash burn, debt, backlog economics, or runway. | not publicly verifiable high | SRC-001SRC-002SRC-003SRC-004 |
| EC-018 | Public customer announcements do not disclose contract value, price, deposits, delivery conditions, penalties, or termination rights. | not publicly verifiable high | SRC-005SRC-006 |
| EC-019 | Public legal searches in reviewed sources did not yield a complete litigation, insurance, environmental, or safety record for Helion. | not publicly verifiable medium | SRC-002SRC-013SRC-015 |
| EC-020 | Helion’s public commercialization strategy is concentrated around first-of-a-kind utility/industrial deployments, not a scaled transactional sales motion. | partially verified medium | SRC-004SRC-005SRC-006SRC-007 |
| EC-021 | Independent news in 2021 corroborated Helion’s $500M raise and reported potential additional $1.7B tied to milestones plus Sam Altman’s large participation. | partially verified medium | SRC-017SRC-018 |
| EC-022 | Helion’s public supply-chain disclosure highlights manufacturing of capacitors, magnets, and semiconductors, but supplier contracts and qualification status are private. | partially verified medium | SRC-004 |
This report is a public-evidence diligence snapshot, not investment advice. Important financial, legal, technical, and contractual facts remain non-public and should be verified directly with management and primary documents before any investment decision.