Pioneering Stratospace for a more resilient and sustainable world– with the Zephyr High Altitude Platform Station
UNLOCKING STRATOSPACE
+ ABOUT AALTO +
AALTO was founded in 2022 to commercialise Stratospace: a new operational layer of the atmosphere between most air traffic and low-Earth orbit. With Zephyr, the most advanced high-altitude platform globally, we can deliver connectivity and Earth observation services to commercial and government partners.
After significant advances in battery and solar cell technology, alongside continued investment in designing and manufacturing HAPS, Zephyr has emerged as the leader in a new domain of aerospace.
AALTO’s hybrid, dual-use platform is at the nexus of UAVs, satellites, connectivity and aviation. With a world-record of 67 days continuous solar-powered flight, Zephyr combines persistency with precision, high-quality data and operational flexibility.

A NEW DOMAIN FOR MARKET SOLUTIONS
+ MARKET SOLUTIONS +
Stratospace bridges the gap between existing connectivity and Earth observation ecosystems. Operating from the stratosphere for extended durations — days, weeks, or even months — AALTO’s Zephyr platform unlocks a new era of truly game-changing direct-to-device connectivity and agile Earth observation, featuring a focus mode with up to a 15cm Ground Sampling Distance (GSD) resolution.

WHAT DRIVES OUR BUSINESS
+ PURPOSE, VISION, MISSION +
A HIGHER PURPOSE: To pioneer Stratospace for a more resilient and sustainable world.
A CLARITY OF VISION: To be the global leader in commercialising Stratospace: integrating space and ground technologies.
DEDICATION TO MISSION: Form a coalition of partners, and through our people and technology, deliver game-changing services from Stratospace

