Unlocking the power of the stratosphere
Wren Aerospace develops high-altitude platform stations (HAPS) – unmanned, autonomous aircraft that fly in the stratosphere at an average altitude of 20 kilometres while providing Telecommunications, Defence or Earth Observation capabilities where conventional solutions fall short.
Wren Flyer at a glance
High-altitude connectivity, redefined
The Wren Flyer is Wren Aerospace’s breakthrough high-altitude platform station (HAPS) – an unmanned, fixed-wing, novel aircraft design for long-endurance missions in the stratosphere. Combining hydrogen and solar hybrid propulsion, space-grade composite structures, and a proprietary control system, it delivers unmatched performance.
50+ kg
payload
Up to 9 days
endurance
70 km
radius of Coverage
Partnerships
Incubated at:
Co-funded by:
Our markets
Where we make an impact
Our high-altitude platform stations serve mobile and satellite operators, governments and defence users. We restore networks after floods, storms or earthquakes, connect remote communities and ships, monitor borders and coastlines, and provide persistent eyes and secure links over critical terrain when other solutions are too slow, risky or costly.
Emergency & remote connectivity
Defence & government
Earth observation
Real-world use cases
Disaster recovery
The Wren Flyer rapidly restores wide-area 5G mobile coverage after disasters like earthquakes or floods, replacing hundreds of cells-on-wheels on the ground. It’s ideal for mobile network operators, civil-protection agencies, emergency responders and humanitarian teams to ensure mobile networks remain available during disaster and to enable efficient emergency response using direct-to-device (D2D) communications.
Remote connectivity
In rural and hard-to-reach areas - such as mountain regions or remote islands - the Wren Flyer delivers 5G coverage without costly cell towers, enabling digital access where it’s otherwise unviable. It provides wide-area backhaul for operators, supports community services like schools and clinics, and offers a practical option for governments aiming to close the digital divide.
Earth observation
When equipped with EO, IR or radar sensors, the Wren Flyer monitors wildfires, floods, pollution and crop health - delivering real-time insights closer to the ground than satellites. Its long dwell time over a single area provides continuous monitoring, helping governments, environmental agencies and emergency teams make faster, better-informed decisions.
Defence operations
For tactical missions, the Wren Flyer provides ISR, secure communications and artillery or drone-threat detection. Operating from the safety of the stratosphere, it supports forces in remote or contested areas while reducing reliance on foreign or privately owned satellite constellations. Its long endurance enables persistent overwatch that conventional aircraft cannot sustain.
Industry voices
About us
Driven by passion, grounded in expertise
Wren Aerospace is a Dutch start-up founded in 2025 with the ambition to develop a next generation high altitude aircraft. We are a small team of aerospace engineers and business minds, combining high quality engineering with clear commercial strategy. Backed by the European Space Agency Business Incubation Centre Noordwijk and co-funded by the European Union, we focus on missions where resilience, cost-effectiveness and sovereignty are critical.
Our team
We are a small, well-balanced team of aerospace engineers, business minds and commercial strategists. Our technical capability enables reliable high-altitude systems, while our commercial experience keeps us focused on real use cases and viable partnerships. Together, we blend complementary skills to build a platform that is both technically credible and commercially sustainable.
