Poseidon Aerospace raises $60M ahead of first uncrewed cargo flight

Poseidon Aerospace co-founder and CEO David Zagaynov says the startup’s focus isn’t flashy aviation technology — it’s cheaper cargo. He and co-founder Parker Tenney, who previously worked at Amazon and Lockheed Martin respectively, founded the company after repeatedly discussing how advanced air-mobility startups fixate on new technology rather than the underlying logistics problem.

Poseidon raised $11 million in seed funding last year and has now closed a $60 million Series A ahead of the first test flight of its uncrewed cargo plane, Egret, expected by the end of this year. The round was led by TQ Ventures, with new investment from Hanwha Asset Management, G Squared, and JAWS, plus existing backers Starship Ventures, Draper Associates, and Drover Ventures.

Unlike many aviation startups, Poseidon isn’t pursuing vertical takeoff and landing technology, hydrogen power, or electric propulsion. Egret and its seaplane variant, Heron, are fixed-wing aircraft with conventional combustion engines — a deliberate bet on the energy density of fuel and on autonomy and remote piloting to cut costs and boost aircraft utilization.

The startup is initially targeting defense and regional commercial cargo. On the defense side, it’s designing aircraft to serve “remote communities and underserved routes where air cargo service is constrained,” including locations with “degraded or nonexistent infrastructure.” On the commercial side, Zagaynov said Poseidon plans to operate its own regional air-cargo business rather than sell its planes, competing directly for business from carriers like UPS and FedEx. Removing the pilot, he argued, removes a major cost constraint: “The plane is like a very expensive asset that spends most of its life just waiting,” since pilot flight-hour limits force aircraft to sit idle or pay for relief crews and overnight stays. Zagaynov also said the autonomy could let Poseidon move away from the hub-and-spoke model toward more point-to-point routes.

Poseidon has expanded into a former Navy hangar in Alameda, California, and is hiring ahead of its first flight, after developing and flying a quarter-scale prototype called Seagull last year. The full-size aircraft has a 50-foot wingspan.

Why it matters

Poseidon’s bet on unglamorous, combustion-powered autonomy over flashier eVTOL designs tests whether cost and utilization — not novel propulsion — will determine which air-cargo startups actually reach commercial scale.