Stoke Space Secures Additional $350M in Series D, Total Funding Reaches $1.34B

Rockets are easy to light on fire. Building one that comes back home, refuels, and does it again without torching your balance sheet? That is a different religion. Stoke Space just closed a Series D extension that brings the total round to $860M and total funding to $1.34B. Read that again. $1.34B aimed at one stubborn idea: space should work like aviation, not like fireworks. Andy Lapsa, co founder and CEO, and co founder Tom Feldman started this in 2019 with propulsion DNA from Blue Origin and a chip on their shoulder about upper stages that never come back. They chose the hard path. Of course they did.

The original $510M Series D was about finishing Launch Complex 14 at Cape Canaveral Space Force Station and scaling production of Nova, their fully and rapidly reusable medium lift rocket. This $350M extension accelerates the roadmap. Translation for the non rocket scientists in the room: build faster, iterate harder, close the gap between test stand and launch pad. When capital shows up twice in the same round, it is not charity. It is conviction.

Stoke Space is not selling nostalgia about the space race. They are selling cadence. Nova is designed for aircraft like frequency. On demand transport to, through, and from space. That only works if the hardware survives the trip. Enter Zenith, their full flow staged combustion engine, one of only 2 of its kind developed and tested globally. Add an actively cooled metallic reentry heat shield integrated into the upper stage engine. That is not a press release flex. That is engineering with teeth.

The Series C, $260M in January 2025, more than doubled total funding at the time to $480M and fueled completion of LC 14, finalizing Nova development, and strengthening their vertically integrated headquarters in Kent, Washington. 168,000 square feet of design, manufacturing, and test muscle. A private test facility a few hours away. Build. Fire. Learn. Repeat. The rhythm matters.

Breakthrough Energy Ventures, Glade Brook Capital Partners, Industrious Ventures, Leitmotif, Point72 Ventures, Seven Seven Six, University of Michigan, Woven Capital, Y Combinator and others backed the earlier rounds. Serious capital for serious physics. The U.S. Space Force allocated LC 14. That is not a participation trophy. That is trust.

The takeaway for founders watching from the cheap seats is simple. Pick the problem everyone says is too hard. Then prove it in public. Vertical test fires. Flight demos of a full scale reusable upper stage. Real metal, real heat, real risk. Capital follows competence.

Stoke Space is not chasing orbit for headlines. They are chasing reliability, tempo, and the right to make space boring in the best possible way. And if space becomes routine, the economy above us starts to look a lot like the one down here, just moving a little faster, a little higher, and a lot more often.