Stralis Aircraft

What Stralis Aircraft does

Stralis Aircraft is an Australian developer of hydrogen-electric propulsion systems for aircraft, headquartered at Brisbane Airport with lab and hangar facilities. The company builds a scalable, patent-pending high-temperature PEM (HTPEM) fuel cell propulsion system (branded Stralis-HE) that integrates fuel cell stacks, liquid hydrogen tanks, and electric motors; the architecture scales from 120 kW for 2–6 seat aircraft through 1 MW for 10–20 seat platforms to 2.5 MW for 30–80 seat regional aircraft. The core demonstrator (HEPS-240, 200 kW) combines two HE-120 stacks, and the company reports more than 4,000 hours of HTPEM fuel cell testing with Technology Readiness Level 4 achieved as of March 2025.

Name

Stralis Aircraft

Legal name

Stralis Aircraft Pty Ltd

Website

https://stralis.aero

Company type

Private

Founded year

2022

Operating status

Operating

Headcount range

1–10 employees

Short description

Stralis Aircraft (Brisbane, Australia) develops scalable, patent-pending high-temperature PEM hydrogen-electric propulsion systems for aircraft ranging from 2-seat retrofits to 80-seat regional airliners, selling hardware and retrofit services to regional airlines and piston-aircraft owners globally.

Ownership category

akta.pro rank

Product category

Hydrogen-Electric Aircraft Propulsion

NAICS

Aircraft Engine and Engine Parts Manufacturing (336412), Aerospace Product and Parts Manufacturing (33641)

SIC

Aircraft Engines & Engine Parts (3724)

akta.pro primary industry

Electric & Hybrid-Electric Propulsion (eVTOL/Regional) (IMABADAH)

akta.pro secondary industries

Engine Control, Fuel & Ignition Systems (FADEC/Accessories) (IMABADAK), Sustainable Aviation Fuel (SAF) & Alternative Fuels (e-fuels, biofuels, hydrogen) (THABANAA)

Keywords

• Hydrogen electric propulsion
• Zero emission aviation
• Aircraft propulsion systems
• Fuel cell technology
• Electric aircraft retrofit

Headquarters

HQ city

Brisbane

HQ country

Australia

HQ region

Oceania

Offices1 record

Markets served

GTM type

B2B and B2C

Offering type

Hardware or Manufacturing

Cost components

Technology or R&D, Personnel, Operations, Supply Chain, Marketing or Sales, Infrastructure

Revenue model

1. Hydrogen-Electric Propulsion System Sales: Sale of proprietary Stralis-HE hydrogen-electric propulsion systems (HEPS) for retrofit into existing aircraft and integration into new designs. Systems scale from 120kW to 2.5MW across different aircraft segments.
2. Aircraft Retrofit Services: Installation of hydrogen-electric propulsion systems into customer aircraft, including the Beechcraft Bonanza A36 and other piston-engine aircraft. Currently taking expressions of interest for global aircraft upgrades.
3. Hydrogen-Electric Aircraft Sales: Sale of retrofitted hydrogen-electric aircraft including Bonanza-A36-HE conversions and Beechcraft 1900D regional hydrogen-electric aircraft to customers like EVIA AERO.
4. Fuel Cell Testing and Expertise Services: Contract with major Japanese aircraft industry partner to provide expertise on high-temperature fuel cells and hydrogen-electric aircraft propulsion systems.

Go-to-market motion4 records

Distribution channels4 records

Marketing channels10 records

Core offering

Stralis Aircraft develops and sells hydrogen-electric propulsion systems (Stralis-HE) for aircraft, spanning 120kW to 2.5MW power classes for UAVs and 2-80 seat aircraft. The company retails retrofitted hydrogen-electric aircraft (Bonanza A36-HE for piston-engine owners and Beechcraft 1900D-HE for regional airlines) and provides fuel cell testing and propulsion expertise services to partners including major Japanese aerospace firms.

Differentiator

Problem solved

Functional benefit

Products and services

• Stralis-HE Hydrogen-Electric Propulsion System (HEPS) Scalable hydrogen-electric propulsion system combining HTPEM fuel cells, liquid hydrogen tanks, and electric motors for UAVs and aircraft. Power classes range from 120kW (2-6 seat aircraft) to 1MW (10-20 seat) to 2.5MW (30-80 seat). Features stacks connected in series with turbocharging and liquid cooling. The system is 6x lighter than competing low-temperature fuel cell systems and enables up to 30x longer flights than battery-electric alternatives while emitting only water vapor.
• Bonanza A36-HE Hydrogen-Electric Aircraft Hydrogen-electric retrofit of the Beechcraft Bonanza A36 piston-engine aircraft for individual aircraft owners and operators facing the global phase-out of leaded aviation fuel. Targets 2-6 seat piston aircraft including Beechcraft Bonanza, Cirrus SR22T, Mooney M20, and Vans RV-10. Designed to address approximately 150,000 piston aircraft worldwide.
• Beechcraft 1900D-HE Hydrogen-Electric Regional Aircraft 19-seat regional hydrogen-electric aircraft designed for point-to-point routes including island hopping, coastal routes, and medical flights. Powered by a 1MW Stralis-HE propulsion system capable of 800km range. Targets regional airlines seeking to decarbonize operations while maintaining regional connectivity. EVIA AERO committed to 6 aircraft with options for 10 more.
• Hydrogen-Electric Propulsion Expertise Services Professional services including HTPEM fuel cell testing, lifetime test campaigns, and hydrogen-electric propulsion system expertise provided to partners including Japanese aerospace industry partners facilitated through IHI and Air New Zealand's Auckland test cell facility.

Quantifiable outcome

• 6x lighter than competing low-temperature fuel cell systems
• +6 more outcomes

Named customers4 records

Segments5 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

16 partnerships are on record, tiered core, major, supporting and minor.

• EVIA AEROcoreStrategic or Co-development Partner · 14 January 2026EVIA AERO expanded partnership with Stralis for 5 Bonanza-A36-HE hydrogen-electric aircraft retrofits, representing the largest single-customer fleet of hydrogen-electric conversions in the sector. EVIA AERO is building a point-to-point zero-emission network in Europe powered by locally generated green electricity and hydrogen. They are Stralis' first European customer for their 19-seat Beechcraft 1900D regional hydrogen-electric aircraft fleet, having committed to 6 aircraft with options for 10 more.
• EVIA AEROcoreStrategic or Co-development Partner · 20 May 2025EVIA AERO announced as Stralis Aircraft's European launch customer. They committed to purchasing six Beechcraft 1900D 19-seat regional hydrogen-electric aircraft, with options for ten more, establishing one of Europe's first zero-emission commercial aircraft fleets.
• FabrumcoreStrategic or Co-development PartnerPartnership with Fabrum, a New Zealand-based development and manufacturing company, to develop and build liquid hydrogen fuel systems and wing-tip storage tanks for Bonanza aircraft. Fabrum uses patented triple-skin composite tank design that decouples liquid containment and thermal shock from pressure capability, using glass fiber with epoxy resin to avoid matrix cracking during cryogenic thermal cycling.
• AMSL AerocoreStrategic or Co-development PartnerAustralian partner working with Stralis and Fabrum to integrate liquid hydrogen fuel systems into hydrogen-electric aircraft. The first family of liquid hydrogen tanks registered in Australia was registered by BOC with funding from Stralis and AMSL Aero.
• Advent TechnologiesmajorTechnology or IntegrationCollaboration with Advent Technologies Holdings on next-generation high-temperature proton exchange membrane fuel cell technology for sustainable aviation. Their HTPEM technology enables longer range, improved performance, and lower costs for electric aircraft using hydrogen fuel.
• H3XmajorTechnology or IntegrationSelected H3X to develop MW-Class electric propulsion system for hydrogen-electric regional aircraft.
• CQUniversitysupportingStrategic or Co-development PartnerResearch collaboration with CQUniversity to develop a heat management system for high-temperature PEM fuel cells. Funding secured through the Regional University Industry Collaboration (RUIC) Program, an initiative of the Queensland Government and administered by CSIRO.
• Akita University and Akita Prefectural UniversitysupportingStrategic or Co-development PartnerMOU signed for joint research and development of hydrogen-electric aircraft propulsion. Partnership facilitated by IHI. Japan aims to introduce commercial hydrogen aircraft propulsion from 2035.
• IHIsupportingStrategic or Co-development PartnerJapanese aerospace and automotive partner that facilitated the introduction between Stralis and Japanese universities for R&D collaboration.
• Hydrogen Flight Alliance (HFA)coreStrategic or Co-development PartnerGrowing alliance now comprising 16 critical stakeholders working to unlock the LH2 supply chain, prepare airports, and enable the first hydrogen-electric flight in Australia. Includes partners like Fabrum, Brisbane Airport Corporation, and Aviation Australia.
• Air New ZealandsupportingStrategic or Co-development PartnerAir New Zealand made available its Auckland-based test cell for sustainability projects. Stralis has been working at this facility to run test lifetime test campaigns for high-temperature PEM fuel cells.
• Brisbane Airport CorporationsupportingStrategic or Co-development PartnerPartner through the Hydrogen Flight Alliance providing strong support for Stralis' hydrogen-electric flight missions at Brisbane Airport.
• Aviation AustraliasupportingStrategic or Co-development PartnerPartner through Hydrogen Flight Alliance hosting Stralis' lab at Brisbane Airport and supporting the experimental test program.
• BOC (Linde company)supportingStrategic or Co-development PartnerConducted registration process for the first family of liquid hydrogen tanks in Australia. The dewar will enable transportation and refuelling of LH2 for aircraft testing.
• MathWorkssupportingTechnology or IntegrationPartnership using MATLAB and Simulink as part of the Startup Program for Model-Based Design development methodology.
• AeroLED, Dynon, Spruce Australia, SwagelokminorChannel Partner/ Reseller/ DistributorSponsors providing components for Stralis aircraft development: AeroLED, Dynon (avionics), Spruce Australia (aerospace supplies), Swagelok (fluid systems).

Scale indicators8 records

Recent moves7 records

Expansion highlights6 records

Direct peers

• ZeroAvia: ZeroAvia is the most direct competitor to Stralis, developing hydrogen-electric propulsion systems targeting 9–80 seat aircraft. Both companies pursue hydrogen fuel cell retrofits of regional aircraft and clean-sheet designs, making their product offerings, customer base (regional airlines), and certification pathway closely aligned.
• Universal Hydrogen: Universal Hydrogen developed hydrogen fuel cell powertrain conversions for regional aircraft, targeting similar 40-seat ATR and Dash 8 platforms. It is a direct peer in hydrogen-electric regional propulsion, although the company has faced financial difficulties, providing a useful comparison point on the capital-intensive nature of the space.
• magniX: magniX develops electric propulsion systems for aircraft, including motors and power electronics that pair with hydrogen fuel cells or batteries. While Stralis partners with H3X for motors, magniX represents the parallel path of pure battery-electric powertrain providers serving similar regional aviation customers.
• H3X Technologies: H3X is an existing Stralis partner developing MW-class electric propulsion motors for hydrogen-electric regional aircraft. It is directly comparable as a supplier of high-power electric propulsion systems for the same hydrogen-electric aviation market segment.

Emerging players

• Heart Aerospace: Heart Aerospace is developing the ES-30, a 30-seat hybrid-electric regional aircraft targeting similar regional airline customers as Stralis' B1900D-HE. While it uses battery-electric rather than hydrogen-electric primary propulsion, it competes for the same regional airline decarbonization budgets and route economics.
• Eviation Aircraft: Eviation develops the Alice, a battery-electric commuter aircraft targeting similar regional airline use cases to Stralis' hydrogen-electric offerings. It overlaps on customer type (regional operators) and end-use (zero-emission short-haul flight) but uses a different energy storage approach.
• Wright Electric: Wright Electric is developing electric propulsion systems for commercial aircraft, initially targeting 100-seat single-aisler aircraft using batteries and eventually hydrogen. It competes for similar zero-emission regional aviation mindshare and customer relationships as Stralis.

Broad incumbents

• Airbus (ZEROe program): Airbus has launched the ZEROe program to develop hydrogen-powered commercial aircraft by 2035, representing the broad incumbent aerospace OEM response to the same decarbonization mandate Stralis targets. While operating at vastly larger scale, Airbus ZEROe is the strategic ceiling for hydrogen-electric propulsion credibility and a potential acquirer or competitor.
• Pratt & Whitney (RTX): Pratt & Whitney is a broad incumbent aerospace engine manufacturer developing hybrid-electric and hydrogen-compatible propulsion technologies for next-generation aircraft. It competes indirectly with Stralis in regional aviation propulsion and has deeper capital and certification infrastructure.

Regional players

• AMSL Aero: AMSL Aero is an Australian hydrogen-electric aircraft developer and existing Stralis partner that registered Australia's first family of LH2 tanks. It is a regional peer focused on the same Australian hydrogen aviation ecosystem and competes for overlapping government grants, partner relationships, and customer attention.

Market position

Strengths1 record

Weaknesses1 record

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/stralis-aircraft

Revenue estimate

Valuation estimate

Number of profiles

Profiles12 records

Funding overview

Funding rounds4 records

Investors7 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Stralis Aircraft