Analysis
Poseidon Aerospace raised a $60 million Series A led by TQ Ventures ahead of the first test flight of Egret, its uncrewed cargo aircraft, according to TechCrunch. New investors Hanwha Asset Management, G Squared and JAWS joined the round, alongside existing backers Starship Ventures, Draper Associates and Drover Ventures. The company previously raised an $11 million seed round in late 2025.
Founded in 2024 by CEO David Zagaynov, a former Amazon software engineer, and CTO Parker Tenney, a former Lockheed Martin engineer, Poseidon is building Egret and a larger sibling, Heron, without the vertical-takeoff-and-landing systems or electric and hydrogen powertrains common among rival aviation startups. Egret is designed for conventional short-runway takeoffs and landings and has a 50-foot wingspan; a quarter-scale demonstrator called Seagull already flew last year. The company has moved into a former Navy hangar in Alameda, California, and plans a hiring push ahead of its first full-size flight, targeted before year-end -- a milestone that still requires FAA sign-off on autonomous flight in shared commercial airspace, not just a successful test in isolation.
“Egret is designed for conventional short-runway takeoffs and landings and has a 50-foot wingspan; a quarter-scale demonstrator called Seagull already flew last year.”
Poseidon's closest comparisons in autonomous aviation, by funding and milestone:
- Xwing -- raised $40 million at a $400 million valuation after demonstrating the first fully autonomous gate-to-gate flight of a commercial cargo plane, on $55 million total raised.
- Shield AI -- raised $1.5 billion at a $12.7 billion valuation in March, though its defense-drone focus keeps it out of Poseidon's cargo-aviation lane directly.
The gap between Xwing's and Shield AI's valuations, both built on autonomy software rather than airframes, shows how much capital the category commands once a company clears a real autonomous-flight milestone -- the same bar Poseidon still has to clear with Egret before year-end. Unlike Xwing, which retrofits autonomy onto existing airframes, Poseidon is designing Egret and Heron as uncrewed aircraft from the ground up, a slower and more capital-intensive path that also avoids the certification complexity of adapting a plane originally built around a human pilot.
