Fundraise

Hop Aero raises $11M seed for suborbital rocket delivery

What's the deal? Hop AeroDealroom has a profile for this one. Try Dealroom → has raised $11 million in a seed round led by Initialized Capital to build suborbital point-to-point logistics rockets. The company announced the funding on the heels of its participation in Y Combinator's summer batch.

The details: The money combines funds raised before and during the accelerator, all on SAFEs — instruments that give investors equity later in exchange for cash now. Initialized has also backed AstroForge, Kayhan Space, and Star Catcher. "We ended up raising more than we initially planned," cofounder and chief executive officer Matija Milenovic told Payload.

What's the endgame? Hop wants to load autonomous drones into rockets and deploy them hundreds of miles away in contested environments. "Where we have the most demand is being able to take a swarm of autonomous systems, put them in a rocket, [send] them hundreds of miles away into a contested environment, and then deploy them there," Milenovic said.

Why now? During its YC batch, Hop tested its autonomous rocket, Rook. The team 3D-metal-printed and hot-fired its engine at the Infinity One Oklahoma Spaceport, ran a full static fire on a half-scale prototype, and demonstrated a rail deployment of four drones for defense customers.

What's next? The funds will fund development of the full-scale Rook 2, whose first flight is set for mid-2027. Hop has yet to fly anything untethered, and is expanding at the Oklahoma Spaceport, with plans to pour concrete by year's end.

What could go wrong? None of Hop's tests have solved the hardest problem: landing a vehicle intact and on target after a hypersonic reentry. Propulsion and payload are de-risked, but the seven-person team still needs to stick the landing.

The signal: At $11 million, Hop's seed lands in the top 5% of US hardware seed rounds tracked all-time — a sign investors are willing to back capital-heavy space startups early, even before a first untethered flight.

Read more: payloadspace.com

Image credit: Hop Aero

More top stories