Radical Aero
Radical makes autonomous solar-powered high-altitude pseudo satellites (HAPS) that fly at 70,000 ft (20km) of the stratosphere for a year without landing. With the recent advances in solar and battery technology, Radical’s aircraft seize the cloud-free, extreme weather-resistant stratosphere layer and fill the middle g
Radical Aero is active in the industrials space based in Seattle, WA, USA, founded in 2022.
Profile
Radical’s StratoSats are autonomous platforms that provide satellite-like services on demand. They fly within Earth’s atmosphere to provide persistent, high performance infrastructure across applications in earth observation, connectivity, and more. Unlike satellites, StratoSats navigate freely without the need for rocket launches or orbits - reducing costs, increasing flexibility, and ensuring customers get the targeted coverage they need.
Radical Aero is positioned in industrials, a segment that rewards a clear, focused offering.
The business is associated with Seattle, WA, USA.
The company is listed at the Winter 2023 stage of development.
Recorded headcount: 6 employees.
Public records show total funding of about $5M.
Directory analysis
Radical Aero develops autonomous, solar‑powered high‑altitude pseudo‑satellites (HAPS) that operate at 70,000 ft for up to a year without landing. The StratoSats provide satellite‑like services—such as earth observation and connectivity—within the atmosphere, offering persistent coverage without the need for orbital launches.
Positioning: Radical’s technology positions it in the emerging HAPS market, targeting customers who require flexible, on‑demand aerial infrastructure with lower cost and quicker deployment than traditional satellites. Its focus on solar and battery advancements differentiates it from other high‑altitude platforms.
Note: Radical Aero offers a solar‑powered, year‑long HAPS solution that eliminates rocket launches.
Auto-generated directory analysis from public data · updated 13 Oct 2026. Informational only, not investment advice.
| Sector | Industrials |
|---|---|
| Headquarters | Seattle, WA, USA |
| Country | USA |
| Founded | 2022 |
| Employees | 6 |
| Stage | Winter 2023 |
| Total funding | $4,965,000 |
Website: www.radicalaero.com
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